Which describes the role of energy in photosynthesis and cellular respiration?


A) Energy is needed to start photosynthesis and is a product of cellular respiration. B)Without light energy, photosynthesis and cellular respiration cannot occur. C)Energy is both a reactant and product in photosynthesis and in cellular respiration.

Answers

Answer 1

Answer:

A) Energy is needed to start photosynthesis and is a product of cellular respiration.

Explanation:

Answer 2

Answer: A). Energy is needed to start photosynthesis and is a product of cellular respiration.

Explanation:

Energy in the form of sunlight is absorbed by the plants so as to prepare their food (carbohydrates)in the process of photosynthesis.

The energy is produced in the process of cellular respiration. The cellular respiration involves the break down of glucose molecules in the food in the form of energy currencies called as ATP (Adenosine triphosphate) molecules. This form of energy is required for regulating cellular metabolism and vital functions.


Related Questions

Carbon disulfide burns with oxygen to form carbon dioxide and sulfur dioxide in the following manner: CS2 + 3O2 → CO2 + 2SO2

What is the volume of sulfur dioxide (SO2 gas), formed when 2 moles of carbon disulfide (CS2) are burned? The reaction is taking place at STP.

5.6 L
22.4 L
89.6 L
44.8 L

Answers

Answer:

89.6 L.

Explanation:

For the balanced reaction:

CS₂ + 3O₂ → CO₂ + 2SO₂.

It is clear that 1.0 mole of CS₂ with 3.0 moles of O₂ to produce 1.0 mole of  CO₂ and 2.0 moles of SO₂.

Using cross multiplication:

1.0 mole of CS₂ produces → 2.0 moles of SO₂.

2.0 mole of CS₂ produces → ??? moles of SO₂.

∴ The no. of moles of SO₂ produced = (2.0 mol)(2.0 mol)/(1.0 mol) = 4.0 mol.

It is known that 1.0 mole of any gas at STP occupies 22.4 L.

∴ 4.0 moles of SO₂ occupy = (4.0)(22.4 L) = 89.6 L.

Answer:

89.6 L.

Explanation:

Rutherford's model of the atom was similar to Bohr's model because they both thought that:

electrons were located in the nucleus of the atom

the nucleus of the atom was centrally located in the atom and was positively charged

the nucleus was negatively charged and that the electrons were positively charged

electrons were too small in size to affect the properties of atoms

Answers

Answer:

the nucleus of the atom was centrally located i n the atom and was positively charged

Explanation:t

Answer:

the nucleus of the atom was centrally located in the atom and was positively charged

Explanation:

Electrons orbit outside the nucleus. Option A is incorrect.

Nucleus is positive in charge and is located at the center of the atom. Option B is correct.

The nucleus is positively  charged and that the electrons are negatively charged. Option C is incorrect.

Electrons do affect the properties of atoms. Option D is incorrect.

A population of gray foxes lives in a forest ecosystem. These foxes prey mostly on a large population of mice. If a fatal disease infects the mouse population, which of these is most likely to happen to the fox population through time?

Answers

Answer and Explanation:

Answer: C. An increase in food availability increases the birth rate in the population.

Explanation:

The conveying limit of a biological system can be characterized as the greatest size of a populace of an animal types an environment can uphold based on accessibility of assets, for example, food, water, living space and different necessities.

An increase in food availability increases the birth rate in the population

is the right choice in light of the fact that to build the populace till the conveying limit there should be excess stock of food ought to be accessible to the populace which can uphold in expansion in birth rate so the populace can achieve a level at the conveying limit.

The differences between two molecules include the type of sugar that forms a section of the molecules and the identity of one of the four nitrogenous bases that make up another section of the molecules. These two molecules are —

Answers

The answer is nucleic acids

A tank has a total pressure of 285 kPa and contains Hydrogen, Oxygen, Carbon dioxide, and Neon. If Neon has a partial pressure of 14 kPa, carbon dioxide is 13 kPa, and Oxygen has a partial pressure of 157 kPa, what is the partial pressure of Hydrogen?

Answers

Answer:

Lets the total pressure is Pt and the individual gases are designated as pH2, pCO2, pNe, pO2.

Pt =  pCO2+ pNe+pO2+ pH2

285KPa = 13 KPa+ 14 KPa + 157 KPa +pH2

Now add the partial pressure of CO2, Ne and O2 which is equal to 184 KPa.

285 KPa = 184 KPa + pH2  

Now subtract the individual pressure of each gas from thje total pressure.

285 KPa - 184 KPa = pH2

                101 KPa = pH2

The partial pressure of hydrogen is  101 KPa.

In terms of bonds, what would the molecule C₃H₆ be classified as?

Inorganic compound

Alkene

Alkyne

Alkane

Answers

The molecule C3H6 is classified as a Alkene.

The answer is alkene

Adding a catalyst to a reaction would increase which quantity?

A. grams of product produced in an hour

B. grams of product at the end of the reaction

C. concentration of product at the end of the reaction

D. concentration of reactants at the end of the reaction

Answers

Answer:

A. grams of product produced in an hour

Explanation:

Catalysts are substances that speed up chemical reactions. They do so by lowering the activation energy of the reactants, minimum energy required to start a chemical reaction.Therefore, catalysts speed up the rate of reaction by lowering the activation energy of the reactants. This means catalysts will have no effect on the concentration of products or reactants and therefore the yield remains the same.

In which set of elements would all members be expected to have very similar chemical properties?A) O, S, SeB) S, Se, SiC) N, O, FD) Ne, Na, MgE) Na, Mg, K

Answers

Answer:

A. O, S, Se

Explanation:

If you look up Oxygen (O), Sulfur (S) and Selenium (Se) in the periodic table, you will see that these three fall under the same column. In the periodic table, elements are arranged in rows and columns. Columns are called groups. The elements that fall under the same group share similar chemical properties.

The elements given above are all in Group VIA or group 16.

How do you do this question?

Answers

Answer:

Explanation:

Interesting way to teach molarity. Count the number of Black dots in Vessel 1. There are 4.  There are also 4 clear dots. The number Ks = Cls

The molarity is 4 units of KCl/volume of vessel 1.

Now look at vessel 2. All you need do is count the black dots. There are fewer of them

There are 8 by my count. The volume hasn't changed but the black dots have doubled. That means there are 8 units of CaCl2 / volume of Vessel 2 (which is the same volume as Vessel one.)

The answer cannot be anything but D.

Before you count the clear dots in vessel two, make a guess of how many there should be. Notice the formula for CaCl2 has a two in it. Make your best guess and count away.

What is the name of the opposite stereoisomer of the molecule shown below?


A. trans-2-pentene

B. 2-ethylpropane

C. cis-2-pentene

D. 1-propene

Answers

Answer:

the answer is d hope this helps

and dont forget to mark me as brainliest

Explanation:

Trans-2-pentene is the name of the opposite stereoisomer of the molecule shown in the figure. Hence, option A is correct.

What is a stereoisomer?

Stereoisomers are isomers that have the same composition but that differ in the orientation of those parts in space.

When two or more compounds differ in the position of substituent atom or functional group on the carbon skeleton, they are called position isomers and this phenomenon is termed as position isomerism.

Pent-2-ene and pent-l-ene are position isomers because differ in the position of double bond.

The two stereoisomers are (Z)-pent-2-ene and (E)-pent-2-ene.

Hence, option A is correct.

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Identify which one is the oxidizing agent in this reaction:

2 KNO3 (s) → 2 KNO2 (s) + O2 (g)

Show ALL work.

Answers

Answer:

Nitrogen atom

Explanation:

Oxidation and reduction in a equation can be shown using oxidation numbers.Oxidation number of Oxygen in KNO3 is -2 while in O2 is 0; this indicates reduction.Oxidation number of Nitrogen (N) in KNO3 is + 5, while in KNO2 is +3 , this indicates oxidation.

Hence;

Nitrogen  has undergone reduction while oxygen has undergone oxidation and therefore, nitrogen is the oxidizing agent and oxygen is the reducing agent.

This is a temperature where the vapor pressure of a liquid equals the atmospheric pressure.

Answers

Answer:

The answer is boiling point.

Explanation:

The boiling point of a substance refers to the temperature at which the vapour pressure of a liquid equals the atmospheric pressure; at this point the liquid will boil. Different liquids have different boiling points that are unique to them. This makes it possible for scientists to use boiling points as one of the criteria by which a liquid substance can be identified. At boiling point, the chemical bonds that are holding liquid particles together are destroyed and the liquid turn to gas.

What chemical process must always accompany a reduction process?

Answers

Answer:

Explanation:

That would be the redox reactions . Such reactions only occur when you have a two half cells ,one of the half cells called anode carry oxidation reaction ( the losing of electrons ) and these electrons are then transferred up to the other half cell called cathode where reduction happens (gain of electrons ). Electrons from the anode are transferred up to the cathode and are reduced

Now moles: _(1, 2, or 3)_moles of H2 + _(1, 2, or 3)_ moles of O2 → _(1, 2, or 3)_moles of H2O

Answers

Answer:

2H₂ + O₂ → 2H₂O.

Explanation:

For the reaction of water formation:

2H₂ + O₂ → 2H₂O.

It should apply the the law of conservation of mass that the no. of reactants atoms is equal to the no. of products atoms.

So, every 2.0 moles of H₂ react with 1.0 mole of O₂ to produce 2.0 moles of H₂O.

The balanced equation of the reaction is:

[tex]\underline{2}H_2\ +\ \underline{1}O_2\ \rightarrow \underline{2}H_2O\\[/tex]

How to balance the equation given?

A balanced equation must have equal numbers of moles of the various element on both sides of the equation.

Now, lets us analyze the given equation. This is show below:

[tex]\_H_2\ +\ \_O_2\ \rightarrow \_H_2O\\[/tex]

Reactants:

H = 2O = 2

Products:

H = 2O = 1

From the above, it is obviously clear that the equation is not balanced.

Therefore, the equation can be balanced by writing 2 before hydrogen gas, H₂ and 2 before water, H₂O as shown below:

[tex]\underline{2}H_2\ +\ \underline{1}O_2\ \rightarrow \underline{2}H_2O\\[/tex]

Now, we can say that the equation is balanced.

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What element marks the boundary between using fusion and fission to release energy?

Answers

Answer:

matter

Explanation:

Iron marks the boundary between fusion and fission for energy release. Lighter elements than iron release energy through fusion, while heavier elements release energy through fission. Iron has the highest binding energy per nucleon, making it a turning point on the energy-mass curve.

The element that marks the boundary between using fusion and fission to release energy is iron (Fe). In the context of nuclear reactions, fusion occurs when two light nuclei combine to form a heavier nucleus, releasing energy because the combined nucleus has a higher binding energy per nucleon.

In contrast, fission is the process of splitting a heavy nucleus into smaller nuclei, releasing energy because the products have a higher binding energy per nucleon than the original heavy nucleus.

Iron possesses the highest binding energy per nucleon, which is why it is an energy-increasing process to fuse nuclei lighter than iron. For elements heavier than iron, fission becomes an energy-releasing process. Thus, iron is a unique marker in the periodic table where the more energy-efficient method of releasing nuclear energy switches from fusion to fission.

Fusion is responsible for powering stars and for the creation of elements in the universe through a process known as nucleosynthesis. Furthermore, while fission has been utilized in nuclear weapons and reactors, fusion promises to release far more energy per reaction, making it an attractive but technically challenging energy source. On an energy-mass curve, nuclei to the left of iron release energy through fusion while those to the right produce energy through fission.

A 100-w light bulb is about 16% efficient. how many joules of heat energy are siddipated by the bulb each second

Answers

Answer:

84 Joules are wasted per second.

Explanation:

An efficiency of 16% means 84% is wasted as heat energy.  

Therefore;

For a 100W bulb;

Heat wasted = 84/100 × 100 W

                      = 84 W

Therefore;

84 W or 84 joules are wasted as heat per second

As you may remember, NaCl is an ionic compound composed of Na+ and Cl− ions. In the oxidation-reduction reaction to form NaCl, which substance is oxidized and which is reduced?


A. Sodium is oxidized and chlorine is reduced.

B. Sodium is reduced and chlorine is oxidized.

C. Both sodium and chlorine are oxidized.

D. Both sodium and chlorine are reduced.

Answers

Answer: Option A

Explanation: 2 Na + Cl2---> 2NaCl

Here Oxidation no of Na is zero while in NaCl is +1. That means oxidation state of Na increased from 0 to +1 hence oxidation

While Cl2 has zero in molecular form and -1 in NaCl hence Reduction (Oxidation no decreased from zero to -1)

Halogens(cl) always shows -1 oxidation state and IA group elements(Na)shows +1 oxidation state

Would a solution with a pOH of 11 be acidic or basic?

Answers

Answer:

Its acidic.. With pH=3

Explanation:

pH + pOH =14

Let pH be x then

x + 11 = 14

x = 3

pH less than 7, solution is acidic.

Answer:

The solution with a pOH of 11 will be acidic in nature.

Explanation:

When the aqueous solution is dissociated based upon the ions released by them it is categorized as acids or bases. When the solution gives out [tex]H^+[/tex] ion it is called as acid, whereas if it gives out [tex]OH^-[/tex] ions it is called as bases.

The concentration of [tex]H^+[/tex] ions is represented by pH, whereas the concentration of [tex]OH^-[/tex] ion is represented by pOH. In pOH scale value seven refers to neutral, whereas value below seven shows that the substance is basic whereas the value above seven indicates the substance as acidic.

Thus, it can be inferred that the solution with a pOH of 11 will be acidic in nature.

Choose the products that complete the reaction. The chemical equations may not be balanced.

Answers

Final Answer:

The products that complete the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH) are water (H₂O) and sodium chloride (NaCl).

Explanation:

In the given chemical equation, HCl + NaOH, hydrochloric acid (HCl) reacts with sodium hydroxide (NaOH) to produce water (H₂O) and sodium chloride (NaCl). This reaction is a classic example of an acid-base neutralization reaction. The hydrogen ion (H⁺) from the acid combines with the hydroxide ion (OH⁻) from the base to form water, and the remaining ions, sodium (Na⁺) from the base and chloride (Cl⁻) from the acid, combine to form sodium chloride.

The balanced chemical equation for this reaction is:

HCl + NaOH → H₂O + NaCl

This equation illustrates the conservation of mass, with the same number of atoms of each element on both sides of the equation. The coefficients in the balanced equation indicate the stoichiometry of the reaction, showing the molar ratios between the reactants and products. In this case, one mole of hydrochloric acid reacts with one mole of sodium hydroxide to produce one mole of water and one mole of sodium chloride.

It's important to note that in a balanced chemical equation, the number of atoms of each element must be the same on both sides. This ensures that the law of conservation of mass is satisfied, meaning that no atoms are created or destroyed during the chemical reaction. In the case of the reaction between HCl and NaOH, the balanced equation accurately represents the chemical changes that occur during the neutralization process.

Full Question:

Choose the products that complete the reaction. The chemical equations may not be balanced. HCL + NaOH →?

What names are listed on the vietnam veterans memorial monument?

Answers

There are the names of more than 58,000 men and women who gave their lives or remain missing.

What is quantum physics

Answers

It has to do with time travel

Final answer:

Quantum physics is a branch of physics focusing on the behavior of matter and energy at atomic and subatomic levels, defining energy, momentum, and other quantities in discrete values. It introduces the wave-particle duality of quantum particles and quantization, where energy is exchanged in fixed quanta.

Explanation:

Introduction to Quantum Physics:

Quantum physics, also known as quantum mechanics, is a fundamental theory in physics that explains the behavior of matter and energy at the atomic and subatomic levels. Unlike classical physics, which adequately describes the motion of macroscopic objects, quantum physics is essential for understanding phenomena that occur at extremely small scales where wave-particle duality and quantization become significant. The quantization aspect of quantum mechanics means that energy, momentum, and other quantities of a system can only take on discrete values.

It's this branch of physics that reveals the dual nature of particles, such as electrons, acting both as particles and as waves. This duality is one of the many counterintuitive aspects of quantum mechanics that do not align with everyday experiences and observations. In the world of quantum mechanics, particles gain or lose energy in fixed amounts called quanta. The field also delves into the strange properties and behaviors of quantum entities, predicting probabilities rather than certainties.

Understanding quantum mechanics is crucial for a variety of applications, including the study of atoms, construction of lasers, and the development of quantum computers. It's a field that continues to challenge our perceptions of reality and pushes the boundaries of what we consider possible in the physical world.

The main reason why H2CO has a higher vapor pressure at a given temperature when compared to CH3OH is that H2CO

Answers

Answer:

Cannot form hydrogen bonds to its neighbours.

Explanation:

The strongest intermolecular forces in H₂CO are dipole-dipole attractions between the polar C=O bonds in nearby molecules.

The strongest intermolecular forces in CH₃OH are strong hydrogen bonding attractions between the O-H group in one molecule and the O atom in a nearby molecule.

Since H₂CO molecules have weaker intermolecular forces than methanol, more of them can escape from the liquid to the vapour phase.

Thus, CH₂O has a higher vapour pressure than methanol.

Final answer:

Formaldehyde (H2CO) has a higher vapor pressure than methanol (CH3OH) due to weaker intermolecular forces, as methanol can form stronger hydrogen bonds which formaldehyde cannot, leading to a lower vapor pressure for methanol.

Explanation:

The main reason why H2CO (formaldehyde) has a higher vapor pressure at a given temperature compared to CH3OH (methanol) is because of the different types of intermolecular forces (IMFs) present in each compound. Methanol can form hydrogen bonds due to its -OH group, which are much stronger than the dipole-dipole interactions and London dispersion forces present in formaldehyde.

Despite methanol and formaldehyde having similar molar masses, the stronger hydrogen bonding in methanol means that more energy is needed to escape from the liquid phase, resulting in a lower vapor pressure for methanol compared to formaldehyde.

The combustion of ethene in the presence of excess oxygen yields carbon dioxide and water: c2h4 (g) + 3o2 (g) → 2co2 (g) + 2h2o (l) the value of δs° for this reaction is ________ j/k⋅mol.

Answers

Answer:

[tex]\boxed{-267.5}[/tex]

Explanation:

You can calculate the entropy change of a reaction by using the standard molar entropies of reactants and products.

The formula is

[tex]\Delta_{r} S^{\circ} = \sum_n {nS_{\text{products}}^{\circ} - \sum_{m} {mS_{\text{reactants}}^{\circ}}}[/tex]

The equation for the reaction is

                        C₂H₄(g) + 3O₂(g) ⟶ 2CO₂(g) + 2H₂O(ℓ)

ΔS°/J·K⁻¹mol⁻¹   219.5      205.0         213.6         69.9

[tex]\Delta_{r} S^{\circ} = (2\times213.6 + 2\times69.9) - (1\times219.5 + 3\times205.0)\\\\= 567.0 - 834.5 = \boxed{-267.5 \text{ J}\cdot\text{K}^{-1} \text{mol}^{-1}}[/tex]

The value of ΔS for the given reaction is –267.5 J/Kmol

The value of ΔS for the reaction given above can be calculated by using the standard entropies of the reactants and products.

The standard entropies for each compounds are given below:

ΔS for C₂H₄ = 219.5 J/Kmol ΔS for O₂ = 205.0 J/Kmol ΔS for CO₂ = 213.6 J/Kmol ΔS for H₂O = 69.9 J/Kmol

Thus, we can obtain the change in the entropy, ΔS for the reaction as illustrated below:

C₂H₄ + 3O₂ —> 2CO₂ + 2H₂O

Change in entropy = entropy of product – entropy of reactant

ΔS = ΔSₚ – ΔSᵣ

ΔS = [(2×213.6) + (2×69.9)] – [(1×219.5) + (3×205)]

ΔS = [427.2 + 139.8] – [219.5 + 615]

ΔS = 567 – 834.5

ΔS = –267.5 J/Kmol

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PLEASE HELP WILL MARK BRAINLIEST!!!Which balanced equation represents an oxidation-reduction reaction? (explain)

(1) Ba(NO3)2 + Na2SO4 ==> BaSO4 + 2NaNO3

(2) Fe(s) + S(s) ==> FeS(s)

(3) H3PO4 + 3KOH==> K3PO4 + 3H2O

(4) NH3(g) + HCl(g)==> NH4Cl(s)

Answers

Answer:

(2) Fe(s) + S(s) → FeS(s)

Explanation:

The oxidation-reduction reaction contains a reductant and an oxidant (oxidizing agent).An oxidizing agent, or oxidant, gains electrons and is reduced in a chemical reaction. Also known as the electron acceptor, the oxidizing agent is normally in one of its higher possible oxidation states because it will gain electrons and be reduced.A reducing agent (also called a reductant or reducer) is an element (such as calcium) or compound that loses (or "donates") an electron to another chemical species in a redox chemical reaction.

The only reaction that include oxidant and reductant:

(2) Fe(s) + S(s) → FeS(s).

Fe is oxidized to Fe²⁺ in (FeS) (loses 2 electrons). "reducing agent".

S is reduced to S²⁻ in (FeS) (gains 2 electrons). "oxidizing agent".

The first reaction: (1) Ba(NO3)2 + Na2SO4 ==> BaSO4 + 2NaNO3

is replacement reaction.

The third reaction: (3) H3PO4 + 3KOH==> K3PO4 + 3H2O

is acid-base reaction.

The fourth reaction: (4) NH3(g) + HCl(g)==> NH4Cl(s)

is synthesis reaction.

The balanced chemical equation which represents a redox reaction is:[tex]Fe_(_s_)+S_(_s_) \rightarrow FeS_(_s_)[/tex] as it includes an oxidant and a reductant. The correct option is 3.

Redox reactions comprise of two parts a reduced part and an oxidized part, which occur simultaneously . The part which is reduced gain electrons and hence there is a increase in oxidation state of the species.

While, the part which is oxidized looses electrons and hence there is a decrease in oxidation state of the species.During redox reactions, there is no net change in the number of electrons . Electrons which are given off in oxidation are used up in reduction.

The ion or molecule which accepts electrons is called as oxidizing agent while the ion or molecule which donates electrons is called as a reducing agent.The only reaction which is an oxidation-reduction reaction is that of iron and sulfur where iron is oxidized and sulfur is reduced.

Thus, the correct option is 3.

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For which of the following can a relative age be determined? Select all that apply.

A.
fossil


B.
rock layer


C.
volcanic eruption


D.
folded rock layers


E.
faulted rock layers

Answers

Answer: A. fossil

B. rock layer

Explanation:

Relative aging or dating can be define as the technique for determination of the age of the rock and fossil. It is a method of determining the chronological order of the past events by comparing the stratigraphic column of rocks and sediments with each other. This method can only give relative age of one object in comparison with the other but does not give the absolute date.  

In terms of bonds, what would the molecule C₆H₁₂ be classified as?

Alkyne

Alkane

Alkene

Inorganic compound

Answers

Answer:

Alkene

Explanation:

Identify the base and conjugate acid pair in the following equation: HF + H 2 O >
H 3 O + + F -

Answers

Answer:

Here's what I get.

Explanation:

An acid is a proton donor; a base is a proton acceptor.

Thus, HF is the acid and H₂O is the base.

The conjugate base is what's left after the acid has given up its proton.

The conjugate acid is what's formed when the base has accepted a proton.

HF/F⁻ make one conjugate acid/base pair, and H₂O/H₃O⁺ are the other conjugate acid/base pair.

[tex]\rm \underbrace{\hbox{HF}}_{\hbox{acid}} + \underbrace{\hbox{H_{2}\rm O}}_{\hbox{base}} \rightleftharpoons \underbrace{\hbox{H_{3}\rm O^{+}}}_{\hbox{conj. acid}} +\underbrace{\hbox{F^{-}}}_{\hbox{conj. base}}[/tex]

Is the equation below balanced? Explain your answer. Zn(OH)2 + NaOH → Na2ZnO2 + H2O

Answers

Answer:

No, it is not balanced.

The balanced equation is: Zn(OH)₂ + 2NaOH → Na₂ZnO₂ + 2H₂O.

Explanation:

To balance the equation, you should apply the law of conservation of mass for the equations.The law of conservation of mass states that the no. of each atom is equal in both sides (reactants and products).For the given equation: Zn(OH)₂ + NaOH → Na₂ZnO₂ + H₂O.

The no. of Na atoms in reactants side is 1 but in products side is 2.

The no. of H atoms in reactants side is 3 but in product side is 2.

So, the equation is not balanced.

The balanced equation is:

Zn(OH)₂ + 2NaOH → Na₂ZnO₂ + 2H₂O.

The no. of all atoms is the same in both of reactants and products side.

Zn (1), O (4), H (4), and Na (2).

Final answer:

The chemical equation Zn(OH)2 + NaOH ⇒ Na₂ZnO₂ + H₂O is not balanced because there is a discrepancy in the number of oxygen atoms on each side of the equation.

Explanation:

The question asks to verify if the chemical equation Zn(OH)₂ + NaOH ⇒ Na₂ZnO₂ + H₂O is balanced. To determine if the equation is balanced, we count the atoms of each element on both sides of the equation. A balanced chemical equation has an equal number of each type of atom on both sides. For this equation, we see on the left side there is one zinc atom, two sodium atoms, four oxygen atoms, and two hydrogen atoms. On the right side, there is one zinc atom, two sodium atoms, three oxygen atoms, and two hydrogen atoms. Since there are different numbers of oxygen atoms on each side, the equation is not balanced.

The first law of thermodynamics is a restatement of the

Answers

the law of thermodyanamic is the restatement of the law of conservation of energy

How many functional groups are in the compound?

Four

Two

Three

One

Answers

Answer:

Two functional groups

Explanation:

We have the carboxylic group and the amine group.

The COOH group to the left is the alkanoic acid/carboxylic acid group..

The NH₂ to the right is the amino functional group.

Other Questions
13. During World War II the United States had to fight a Two-front war. This meant the USa. had to fight a war against communism and democracyb. had to fight allies overseas and enemies at homeC. had to light both a military and a political war in South America.d had to fight in both Europe and the Pacific Write an informal command in Spanish with the verb venir. What presidential action during the civil war contributed most to ending slavery after the war?A. Devising a plan to transition the Southern economy to manufacturing B. Speaking at an international summit on ending slavery C. Making sure the Union army gave equal pay to black and white soldersD. Issuing the Emancipation Proclamation On January 1, 2002, what was introduced to help European countries invest in one another and trade with one another? A) the internet B) the Euro currency C) the United Nations D) the NATO organization The band and I had a sold-out performance last night. There was not a single seat left in the auditorium after playing the first song. Screaming in excitement, the fans amazed us with their energy. We didn't want the night to end because of them. -----------------------Which modifier is dangling in the paragraph above? A. after playing the first song B. Screaming in excitement C. with their energy D. in the auditoriumPLS HELP. I WILL NAME THE BRAINIEST AND GIVE LOTS OF POINTS 3. In a set of points that Milton scored in basketball games, there is an outlier.Before one game, Milton injured his knee. Do you think the outlier is greateror less than the rest of the numbers of points? Explain. 9 inches of ribbons are needed for wrapping each present. How many presents can be wrapped with 6 yards of ribbons? The magnetic field around a current carrying wire at a distance of 1cm is twice as strong as 2cm . How does the Ford strength at 0.5cm compare to the field strength at 1cm 2, -2, 2, -2, . . . is an example of an infinite alternating sequence.True Or False Which statements correctly describe the association between the variables A and B?Select each correct answer.no associationnegative associationpositive associationlinear associationnonlinear association 1) Helen is 8 years older than Jane. Twenty years ago Helen was three times as old as Jane. How old is each now and what is the equation?2) A bank teller has some five-dollar bills and some twenty-dollar bills. The teller has 4 more of the twenties. The total value of the money is $305.00. Find the number of twenty-dollar bills. What is the equation? In the equation 4x+5y=20 what is the y value that solves the equation when x=5? Show your work A, B and C are the vertices of a triangle.A has coordinates (4, 6)B has coordinates (2,-2)C has coordinates (-2,-4)D is the midpoint of AB.E is the midpoint of AC.Prove that DE is parallel to BC.You must show each stage of your working. Camp Ground A has an area of 300 square yards with a maximum capacity of 25 pup tents. Camp Ground B has an area of 480 square yards and requires that each of its pup tents occupies the same area as each pup tent in Camp Ground A. What is the maximum number of pup tents that can occupy Camp Ground B? In two or more sentences, explain your calculations and conclusions. Why was the UN originally founded? Which one of the following can the transit method tell us about a planet? -its mass-its size-the eccentricity of its orbit Please help this is confusing!!!!! A 2.0-ohm resistor is connected in a series with a 20.0 -V battery and a three-branch parallel network with branches whose resistance are 8.0 ohms each. Ignoring the batterys internal resistance, what is the current in the batter? Show your work. Change to have direct and indirect object pronouns Vamos a vender los pantalones a ellos Queremos tomar el coche para tiTu puedes llamar a el para nosotros Why did the maya prefer to capture people rather than take land when the fought wars