Answer:
Explanation:
A. Metals are shiny, usually solid at room temperature, malleable, ductile, and highly conductive. In contrast, ionic compounds are brittle. Molecular compounds are often gases at room temperature.
b. Metals have very few valence electrons. Their outermost p-orbitals are empty. This allows their electrons (including those from their d-orbitals) to move freely between metal atoms. The movement of electrons is electricity, so this mobile "sea of electrons" is what causes metals' conductivity.
how many nanometers in 0.058 km
Answer:
the answer is 58000000000 nanometers
Different conversion units are used to evaluate different parameters. Therefore, 5.8 ×10¹⁰nm in 0.058 km.
What is unit conversion?Unit conversion is a multi-step procedure that includes multiplying or dividing a number by a numerical factor. Weight, distance, as well as temperature may all be measured in many ways. Distance is expressed in kilometers, mass in kilos, and temperature in degrees Celsius in many nations.
Unit converting is a multi-step procedure that requires multiplying or dividing by a numerical number or, more specifically, a conversion factor. The technique may also require selecting the appropriate number of important digits and rounding. Different conversion units are used to evaluate different parameters.
1km= 10¹²nm
0.058 km = 0.058 ×10¹²= 5.8 ×10¹⁰nm
Therefore, 5.8 ×10¹⁰nm in 0.058 km.
To learn more about unit conversion, here:
https://brainly.com/question/19420601
#SPJ6
A
0.510
m
aqueous solution of
KBr
has a total mass of
67.0
g.
What masses of solute and solvent are present?
Answer:
Molality of the solution : 0.630 M
Mass of the KBr (solute) = x grams
Mass of the solvents : 86.0 - x grams
Mass of the solute = 6.001 grams
Mass of the solvent = 86.0 - x grams = 86.0 - 6.001 g = 79.999 grams
Explanation:
A 0.510m aqueous solution of KBr has a total mass of 67.0g. The masses of solute and solvent are 3.833g and 63.167 g.
What is the difference between solute and solvent?The two main elements of a solution are a solute and a solvent. The solute is a substance that dissolves. The former dissolves in the solvent, which has that property. In other terms, the solvent is the dissolving media, and the solute is the stuff that is dissolved.
The solute, which is present in a solution in a smaller quantity than the solvent, is the substance that dissolves in the solvent. The term "solvent" refers to the substance that dissolves the solute in a solution; it is more abundant than the solvent.
Greater than the solvent is the boiling point. That is less than the solute's level.
Solute as a solid, liquid, or gas. Solvent is primarily liquid, but it can also be gaseous.
The qualities of the solute determine its solubility. The solvent's characteristics affect how something dissolves.
let the mass of solute be x g
mass of solvent= (67- x) g
Molality = [tex]\frac{x X 1000}{119(67-x)}[/tex]
solving for x:
x = 3.833g
67 - x = 63.167 g
To know more about boiling point, visit:
https://brainly.com/question/25777663
#SPJ1
The human activities in two locations are described below:
Location A: Rampant use of plastic containers
Location B: Excessive use of pesticides and fertilizers Which statement is most likely true?
A. Location A will have poor air quality because plastic is biodegradable.
B. Location A will experience water scarcity because plastic absorbs moisture. C. The population of honeybees will increase in Location B because production of crops will increase.
D. The population of fish in Location B will decrease because the water is contaminated.
Answer:
B location A will experience water scarcity because plastic absorbs
Explanation:
Answer: I believe its D
Explanation:
Im doing the science test rn
Elements are represented by _____ or _____ letter symbols.
Provide an example of an element and it’s symbol:
Answer:
In the typical periodic table, each element is listed by its element symbol and atomic number. For example, “H” denotes hydrogen, “Li” denotes lithium, and so on. Most elements are represented by the first letter or first two letters of their English name, but there are some exceptions.
Each element has a symbol,one or two letters that represent the element much as your initials represent you. The symbol of an element represents one atom of that element.
...
Symbol Element
Cf californium
C carbon
Ce cerium
Cs cesium
Explanation:
The element is the purest form of the atom that is composed of single species. Elements are represented by one or two letter symbols, like He and H.
What is an element?The purest and the most simplified form of an atom is said to be called an element. Each and every element is said to have a respective atomic mass and atomic number that are denoted with symbols in the periodic table.
The elements are represented as one or two letter symbols in the table along with the atomic number and masses as the superscript and subscript. For example, a hydrogen atom is represented as H, helium as He, neon as Ne, carbon as C, calcium as Ca, oxygen as O, sodium as Na, nitrogen as N, etc.
Therefore, the element in a periodic table is represented by one or two alphabetical symbols.
Learn more about elements here:
https://brainly.com/question/16803480
#SPJ2
What volume would be occupied by 12.4 moles of helium gas at STP
Answer: 277.8 L
Explanation: Use Ideal gas law equation:
PV= nRT
At STP: P= 1atm T = 273 K
V= nRT/ P
= 12.4 moles He ( 0.08205 L.atm/mole.K) ( 273 K) / 1 atm
= 277.8 L
Use the table to determine the charge of phosphate in K3PO4.
Answer:
Charge on Phosphate is -3 (PO₄³⁻)
Explanation:
Ions or polyatomic ions are formed when an atom or molecule loses or gains electron(s) respectively.
Example:
Formation of ions.
Na → Na⁺ + e⁻ (Na loses one electron)
Cl₂ + 2 e⁻ → 2 Cl⁻ (Cl gains electron)
In polyatomic ions a charge is present on a molecule which has either two or more atoms.
Example:
CO₃²⁻ , SO₄⁻ , NH₄⁺ e.t.c.
In statement the K₃PO₄ polyatomic ionic compound. It is made up of three K⁺ ions and one Phosphate ion (PO₄ˣ⁻) ion.
As we know K belongs to group 1 metals so it has one valence electron and thus, forms a cation of +1 charge. So, for a neutral polyatomic ionic compound the overall charge on K₃PO₄ should be zero. Hence,
K (3) + PO₄ (X) = 0
Or,
+3 + X = 0
Or,
X = 0 - 3
X = -3
Therefore, the charge on phosphate is -3.
The charge of phosphate in K3PO4 is -3.
Explanation:The charge of phosphate in K3PO4 can be determined using the table provided. From the table, we can see that K+ has a charge of +1. Since there are three K+ ions in K3PO4, their total charge is +3. So, the charge of phosphate in K3PO4 is -3.
Learn more about Charge of phosphate in K3PO4 here:https://brainly.com/question/14679486
#SPJ6
Which statement would support a merit of the Bronsted-Lowry base theory has over the Arrhenius base theory?
A) Hydronium ions are Bronsted-Lowry bases released in solution.
B) Bronsted-Lowry bases include both proton and hydroxide acceptors.
C) The Bronsted-Lowry bases can act as electron and proton acceptors.
D) Hydroxide ions are the only Bronsted-Lowry bases produced in solution.
Answer:
Explanation:
Bronsted Base is an H+ acceptor
No good answer Bronstead base does not accept hydroxide or electrons
Answer:
Bronsted-Lowry bases include both proton acceptors and hydroxide ions.
Explanation:
Bronsted Lowry base theory includes all bases that can act as proton acceptors. This includes Arrhenius bases include bases that can produce hydroxide ions in solution, such as sodium hydroxide, and more traditional proton acceptors like ammonia, NH3..
Which reaction model represents a nuclear fission reaction?
A → B + C
A → B + C + n
A + C → B + n
n + A → B + C + n
Yo sup??
The correct answer is option D ie
n + A----> B + C + n
Its similar to bombarding a U 235 ore.
Hope this helps.
Answer:
Answer is D, I've done the exam I know for sure.
Explanation:
n + A → B + C + n
Hope you all get a good grade :))
If one force on an object on an object is 5N upward and the other obect is 10N downward, what is the object's motion ?
Answer: It will move down
Explanation: Since there is an unbalanced force on the object its motion is directed on the side with the greatest amount of force.
Final answer:
With a net force of 5N downward, the object will accelerate downward.
Explanation:
If one force on an object is exerted 5N upward and another force is 10N downward, we can calculate the net force to determine the object's motion. By subtracting the upward force from the downward force, we get a net force of 10N - 5N = 5N downward. Since the net force is downward, the object will accelerate in the downward direction according to Newton's Second Law of Motion, assuming no other forces are acting on the object.
!!!Help ASAP!!!What characterizes a system at equilibrium?
A. The system cannot undergo change.
B. The system has stopped changing.
C. The system is changing at an even rate.
D. There is no net change to the system.
Answer: Option D. There is no net change to the system.
Explanation:
Which sentence contains a dependent clause?
A. Would you like to see the Washington Monument or the White House?
B. For spring break, my family will visit Washington, D.C., which is the capital of the United States.
C. The cherry blossom trees in Washington, D.C. are beautiful, so people like to have picnics in the park.
D. The Lincoln Memorial was built in 1922, and it’s one of the most popular monuments in Washington, D.C.
Answer:
B
Explanation:
8 oz bottle of Dr. Pepper made with imperial cane sugar (C12H22O11) contains 27 g of sugar in 236.6 mL of water. What is the molarity of the solution with respect to cane sugar?
Answer:
0.33M
Explanation:
Molarity is asking, in Laymens terms:
"If I took a litre of this stuff, how much stuff is gonna be in it?"
Diving deeper, we use litres instead of millilitres or nanolitres because that's usually what we're working with. We use moles rather than mass because mass varies; different substances have different molar masses, so describing something in g/L makes no sense if you're comparing two different solutions.
Anyway, go find the number of moles:
n=m/mm
n=27g/342.34g/mol
n=0.078870mol
The next question you've gotta ask yourself is:
What if I had a litre of it?
V = 0.2366L
M=n/V
M=0.078870mol/0.2366L
M=0.33M
The molarity of the Dr. Pepper made with imperial cane sugar is 0.334 M. This is calculated by first converting the mass of sugar into moles and the volume of water from mL to L, and then using these values in the molarity equation.
Explanation:To calculate the molarity of a solution, we can use the formula: Molarity (M) = moles of solute/liters of solution. To apply this to your question, we first need to convert the mass of cane sugar (C12H22O11) into moles. The molecular weight of cane sugar (C12H22O11) is approximately 342.3 g/mol. Therefore, 27 g of sugar is approximately equal to 0.0789 moles.
Next, we need to convert the volume of water from mL to L. Hence, 236.6 mL is equal to 0.2366 L. Now, we can use these values in our molarity equation: M = 0.0789 moles/ 0.2366 L = 0.334 M. Therefore, the molarity of the Dr. Pepper made with imperial cane sugar is around 0.334 M.
Learn more about Molarity here:https://brainly.com/question/31815736
#SPJ3
3.
A gas has a volume of 225 L at 175 K and 150 kPa. What will be its volume at a temperature
of 112 K and pressure remains constant?
4
.
A gas is heated to 180 K at a constant pressure of 1 atm. If the container expands to hold a
volume of 44.8 L, what was the volume of the gas, at a temperature of 90 K?
A 200 L sample of gas is collected at 50 kPa and a temperature of 271 K. What volume
would this gas occupy at 100 kPa and a temperautre of 14 K?
6.
Find the new volumes if the values given below change to STP (273 K and 101.3 kPa)...
(a) 24.6 L at 25°C and 10 atm
Answer:
3. V = 0.2673 L
4. V = 2.4314 L
5. V = 0.262 L
6. V = 2.224 L
Explanation:
3. assuming ideal gas:
PV = RTn∴ R = 0.082 atm.L/K.mol
∴ V1 = 225 L
∴ T1 = 175 K
∴ P1 = 150 KPa = 1.48038 atm
⇒ n = RT/PV
⇒ n = ((0.082 atm.L/K.mol)(175 K))/((1.48038 atm)(225 L))
⇒ n = 0.043 mol
∴ T2 = 112 K
∴ P2 = P1 = 150 KPa = 1.48038 atm
⇒ V2 = RT2n/P2
⇒ V2 = ((0.082 atm.L/K.mol)(112 K)(0.043 mol))/(1.48038 atm)
⇒ V2 = 0.2673 L
4. gas is heated at a constant pressure
∴ T1 = 180 K
∴ P = 1 atm
∴ V1 = 44.8 L
⇒ n = RT/PV
⇒ n = ((0.082 atm.L/K.mol)(180 K))/((1 atm)(44.8 L))
⇒ n = 0.3295 mol
∴ T2 = 90 K
⇒ V2 = RT2n/P
⇒ V2 = ((0.082 atm.L/K.mol)(90 K)(0.3295 mol))/(1 atm)
⇒ V2 = 2.4314 L
5. V1 = 200 L
∴ P1 = 50 KPa = 0.4935 atm
∴ T1 = 271 K
⇒ n = RT/PV
⇒ n = ((0.082 atm.L/K.mol)(271 K))/((0.4935 atm)(200 L))
⇒ n = 0.2251 mol
∴ P2 = 100 Kpa = 0.9869 atm
∴ T2 = 14 K
⇒ V2 = RT2n/P2
⇒ V2 = ((0.082 atm.L/K.mol)(14 K)(0.2251 mol))/(0.9869 atm)
⇒ V2 = 0.262 L
6.a) ∴ V1 = 24.6 L
∴ P1 = 10 atm
∴ T1 = 25°C = 298 K
⇒ n = RT/PV
⇒ n = ((0.082 atm.L/K.mol)(298 K))/((10 atm)(24.6 L))
⇒ n = 0.0993 mol
∴ T2 = 273 K
∴ P2 = 101.3 KPa = 0.9997 atm
⇒ V2 = RT2n/P2
⇒ V2 = ((0.082 atm.L/K.mol)(273 K)(0.0993 mol))/(0.9997 atm)
⇒ V2 = 2.224 L
The volume of a gas at different temperatures while keeping pressure constant can be calculated using Gay-Lussac's law. For the first question, we use the initial volume and temperature to find the final volume when the temperature changes to 112 K, while pressure remains constant.
The volume of a gas at different temperatures and pressures, while some variables are kept constant, can be calculated using the combined gas law when both temperature and pressure change, or Gay-Lussac's law when only temperature changes and pressure stays constant, or Boyle's law when only pressure changes and temperature stays constant.
For the first question: The initial conditions are a volume of 225 L at a temperature of 175 K, and we're asked to find the final volume at 112 K while keeping pressure constant.
Using Gay-Lussac's law: V1/T1 = V2/T2, we rearrange to solve for V2:
V2 = V1 * T2/T1
V2 = 225 L * 112 K/175 K
After performing the calculation, you find the new volume at 112 K.
Which event signals the birth of a star?
Answer:
Its c.
Explanation:
When the density and temperature at the core of the gravitationally collapsing nebula reaches values when nuclear fusion is triggered and sustained, that marks the birth of the star.
‘ you don’t likeee me dasss fineee kk byeee’
What type of particles flow between objects when they are charged by friction or conduction?
A.
protons
B.
quarks
C.
neutrons
D.
electrons
Answer:
d.electrons
Explanation:
Calculate the number of formula units in 41.40 grams of Ca(CIO3)2
Answer: 1.21x10²³ formula units Ca( ClO3)2
Explanation: solution attached:
Convert mass of Ca(ClO3)2 to moles
Convert moles of Ca(ClO3)2 to formula units using Avogadro's number
Which of the following changes to a pipe would increase the conductance by a factor of 12?
A. Quadrupling the length and tripling the radius.
B. Reducing the length by a factor of and doubling the radius.
C. Tripling the length and reducing the radius by a factor of .
D. Reducing the length but a factor of and doubling the radius.
C. Tripling the length and reducing the radius by a factor of 2 is the change to a pipe would increase the conductance by a factor of 12.
Explanation:
As we know that the resistance is directly proportional to the length of the pipe and it is inversely proportional to the cross sectional area of the pipe.
So it is represented as,
R∝ l /A [ area is radius square]
So k is the proportionality constant used.
R = kl/A
Conductance is the inverse of resistance, so it is given as,
C= 1/R.
R₁ = kl₁ / A₁
R₂ = kl₂/A₂
R₂/R₁ = 1/12 [∵ conductance is the inverse of resistance]
= l₂A₁ / l₁A₂
If we chose l₁/l₂= 3 and A₂/A₁= 4 So R₂/R₁= 1/3×4 = 1/12
So tripling the length and reducing the radius by a factor of 2 would increase the conductance by a factor of 12.
Answer:
Reducing the length by a factor of 1/3 and doubling the radius.
Explanation:
this is correct answer, my assignment says
As a technician in a large pharmaceutical research firm, you need to produce 300. mL of 1.00 M a phosphate buffer solution of pH = 7.36. The pKa of H2PO4− is 7.21. You have 2.00 L of 1.00 M KH2PO4 solution and 1.50 L of 1.00 M K2HPO4 solution, as well as a carboy of pure distilled H2O. How much 1.00 M KH2PO4 will you need to make this solution?
Answer: pH = 7.36. The pKa of H2PO4− is 7.21.
Explanation:
why does hydrogen only burn at the mouth of the bottle?
what two quantities does the AVEE measure
Answer:
A single quantity that measures the ionization energy of the valence electrons of an electron. Where a is number of electrons in s subshell and Is is Ionization energy of that subshell. AVEE measures two important qualities: 1.
Explanation:
Final answer:
The AVEE measures the average velocity (Vav) and displacement (Ax), which are essential in the context of work done by an electric force in a uniform electric field.
Explanation:
The AVEE, referring to the average electric potential energy, is used to measure two main quantities in physics: average velocity (Vav) and displacement (Ax). The average electric potential energy (AVEE) is involved when considering the work done by the electric force in moving a charge from one point to another, particularly in a uniform electric field. The concept of AVEE is essential in understanding how charges interact within an electric field. The equation AV = APE and APE = qAV help underline the relationship between the average electric potential energy and these measured quantities.
A substance is found to be reactive, flammable, soluble, and explosive. Which of these observations is a physical property?
A.
reactive
B.
explosive
C.
flammable
D.
soluble
Answer: D
Explanation:
it says so on google
Chemical reaction to form products this chemical equation represents one such reaction the coefficient for one of the reactants or products is incorrect which part of the chemical equation is incorrect. 2c⁴h¹⁰ + 10o² -> 8co² +10h²o
Answer:
In a chemical equation, chemicals that react are the reactants, while chemicals that are produced are the products/by products. Both sides of the equation must be balanced.
\
Explanation
When writing a chemical equation, reactants reacts to produce products. For example in the equation for formation of water, hydrogen combines with oxygen as 2H₂ +O₂→2H₂O where the first part before the arrow represent the reactants and the next part after the arrow are the products. Reactants are on the left where as products are on the right.Coefficient 2, in this cases is used for balancing the equation
The coefficient of the reactant diatomic oxygen (O2) is incorrect in the provided chemical equation. The corrected equation for the combustion of butane is 2C4H10 + 13O2 -> 8CO2 +10H2O.
Explanation:The given equation is 2C4H10 + 10O2 -> 8CO2 +10H2O. The coefficient of diatomic oxygen (O2), a reactant, is incorrect. It's essential to balance the number of atoms on both sides of a chemical equation to abide by the law of conservation of matter. The correct equation should be 2C4H10 + 13O2 -> 8CO2 +10H2O. This represents the combustion of butane.
Learn more about Balancing Chemical Equations here:https://brainly.com/question/29233369
#SPJ2
What is the mass of a nitrogen dioxide molecule?
The mass of a nitrogen dioxide (NO2) molecule is approximately 46 atomic mass units (amu) as per the concept of molar mass.
Molar mass of a compound or a molecule is defined as the mass of the elements which are present in it.The molar mass is considered to be a bulk quantity not a molecular quantity. It is often an average of the of the masses at many instances.
The molecular mass and formula mass are used as synonym for the molar mass.It does not depend on the amount of substance which is present in the sample.It has units of gram/mole.
Molar masses of an element are given as relative atomic masses while that of compounds is the sum of relative atomic masses which are present in the compound.This is because the atomic masses of nitrogen is 14 amu and that of nitrogen is 16 amu, respectively. Since there are two oxygen atoms and one nitrogen atom in an NO₂ molecule, the total mass is calculated as follows:
[tex]2\times16+1\times14=46 \ amu[/tex]
Therefore, the mass of a nitrogen dioxide molecule is approximately 46 amu.
Learn more about molar mass,here:
https://brainly.com/question/31545539
#SPJ3
express y in terms of x
Answer:
To express y in terms of x is to find an expression that relates the value of x with y. This is to write a model, function, expression or formula that permits to input a value for x and the outcome will be the value of y. .For example if you have y = 2x, y is in terms of x and you can input different values of x to obtain corresponding values (outputs) of y.
Read more on Brainly.com - https://brainly.com/question/279286#readmore
Explanation:
Final answer:
To express y in terms of x, you manipulate an equation to make y the subject, using substitution and algebraic manipulation for simple equations, or differentiation and implicit differentiation for more complex relationships.
Explanation:
To express y in terms of x, one typically manipulates a given equation or set of equations, solving for y to make it the subject. The process may involve various mathematical techniques, including substitution, algebraic manipulation, and differentiation when dealing with functions of multiple variables. An example of expressing y in terms of x can be seen in a simple linear equation, such as y = mx + b, where m is the slope and b is the y-intercept. In this case, y is already expressed in terms of x.
In more complex relationships, such as the nonlinear equation x + y = exp(xy), one might take a derivative with respect to x to get dy/dx and solve that differential equation for y in terms of x, considering implicit differentiation if necessary.
What happens when an acid dissolves?
A. Oxygen is added to the solution.
B. It is no longer an acid,
C. Hydrogen gas is released,
D. H increases in solution.
Answer:
The answer is D. H+ increases in solution.
Explanation:
One water molecule gains a hydrogen and therefore takes on a positive charge, while the other water molecule loses a hydrogen atom and therefore becomes negatively charged.
More information:
(https://www2.nau.edu/lrm22/lessons/acids_and_bases/acids_and_bases.html#:~:text=One%20water%20molecule%20gains%20a,and%20it%20makes%20things%20acidic.)
Select the correct answer. What is heat of vaporization? A. It is the heat required to change a substance’s temperature by 1°C. B. It is the heat required to change a gram of substance from a solid to a liquid. C. It is the heat required to change a substance from a solid directly to a gas. D. It is the heat required to change a gram of substance from a liquid to a gas. E. It is the heat required to separate one substance into two substances.
The correct option is D.
What is meant by the heat of vaporization?The heat of vaporization is defined as the amount of heat needed to turn 1g of a liquid into a vapor, without a rise in the temperature of the liquid.
What is the heat of vaporization of water?That is, water has a high heat of vaporization, the amount of energy needed to change one gram of a liquid substance to gas at a constant temperature. Water's heat of vaporization is around 540 cal/g at 100 °C, water's boiling point.
Learn more about the heat of vaporization here https://brainly.com/question/26306578
#SPJ2
What is the pressure generated in a 10 liter container at 300K when
68 gram of H2O2 decomposes?
please I only have 30 minutes left
Answer:
Pressure = 2.45 atm
Explanation:
The balance chemical equation for the decomposition of hydrogen peroxide is as follow;
2 H₂O₂ ₍aq₎ → 2 H₂O ₍l₎ + O₂ ₍g₎
Step 1: Calculate Moles of H₂O₂ as;
Moles = Mass / M.Mass
Moles = 68.0 g / 34.01 g/mol
Moles = 1.99 moles
Step 2: Calculate Moles of O₂ gas produced:
According to equation,
2 moles of H₂O₂ produced = 1 mole of O₂
So,
1.99 moles of H₂O₂ will produce = X moles of O₂
Solving for X,
X = 1.99 mol × 1 mol / 2 mol
X = 0.995 moles of O₂
Step 3: Calculate pressure exerted by O₂ gas as;
According to ideal gas equaton,
P V = n R T
Or,
P = n R T / V
Putting values,
P = 0.995 mol × 0.08205 L.atm.K⁻¹.mol⁻¹ × 300 K / 10 L
P = 2.45 atm
Which are characteristics of medusae?
are sessile, have tentacles, mouths open downward
swim freely, lack tentacles, mouths open upward
swim freely, have tentacles, mouths open downward
are sessile, lack tentacles, mouths open upward
The correct characteristics of medusae are: swim freely, have tentacles, mouths open downward.
Medusae are the free-swimming, jellyfish-like form of certain aquatic animals, typically found in the phylum Cnidaria. They are characterized by their ability to swim freely in the water, which distinguishes them from the sessile, or immobile, polyps that are another life stage of cnidarians. Medusae have tentacles that hang down from their bell-shaped bodies, which they use to capture prey. These tentacles are often equipped with stinging cells called nematocysts that help to immobilize their prey. The mouth of the medusa is located on the underside of the body, facing downward, and leads to a gastrovascular cavity where digestion takes place.
To summarize, the following are the characteristics of medusae:
- Swim freely: Medusae are capable of locomotion and can move through the water column.
- Have tentacles: They possess tentacles that extend from their bodies, which are used for capturing food.
- Mouths open downward: The mouth is situated on the ventral side of the medusa, facing downward, which is suitable for bringing captured prey into the gastrovascular cavity for digestion.
The other options listed do not accurately describe medusae:
- Are sessile: This is incorrect because medusae are free-swimming, not immobile.
- Lack tentacles: This is incorrect because tentacles are a defining feature of medusae.
- Mouths open upward: This is incorrect because the mouth of a medusa opens downward.
A scientific model is easier to interpret and understand when it includes the main parts or processes, rather than every detail of
every part or process.
Please select the best answer from the choices provided
OT
OF
Answer:
ot
Explanation:
Answer:
true
Explanation:
New technologies have allowed buildings to become taller and heavier than ever before.This is an example of:
This is an example of "Skyscrapers".
Explanation:
Skyscraper is a high rise, tall multi storied building of that consist of about 40 floors inside it that is mainly built for the corporate offices, commercial spaces and residential flats.Buildings that are higher than 150m height are known skyscrapers. They have steel or iron framework to its inner side of the building that supports its floor and walls.Skyscrapers are made possible by the process of Bessemer process of mass production of steel beam.Answer:
its sum about the engernier proces
Explanation:
just did i on apex