The chemical formula is composed of hydrogen and oxygen where the two atoms are bonded through hydrogen bond type of bonding. In this pair, the oxygen is the more electronegative atom hence the electrons are more directed to it. Because of this, this creates electron polarity which affects the chemical property of water.
Final answer:
The chemical formula of H₂O results in a polar molecule with strong hydrogen bonds, which give water its unique properties like high heat capacity, solvent capabilities, and ice's lower density than liquid water.
Explanation:
The chemical formula of water, H₂O, influences its chemical properties due to the arrangement of its atoms and the polar nature of its molecules. Each water molecule consists of one oxygen atom bonded to two hydrogen atoms. The oxygen atom draws electrons closer than the hydrogen atoms, creating a molecule with a negative charge near the oxygen and a positive charge near the hydrogens, establishing a polar structure. This polarity leads to strong hydrogen bonding between water molecules, resulting in many of water’s unique properties, such as high surface tension, high boiling point, and its role as a universal solvent.
Chemical Structure and Properties of Water
Water's polarity and hydrogen bonds are essential for its ability to dissolve various substances, which makes it a key player in chemical reactions and in biological systems. Due to these characteristics, water can contribute to the stabilization of ecosystems and the regulation of climate. The structure of water molecules also accounts for the fact that ice is less dense than liquid water, which is why ice floats. These properties are all rooted in the molecular structure of water, dictated by its chemical formula, H₂O.
The molar volumes of solid and liquid lead at the normal melting temperature of lead are, respectively, 18.92 and 19.47 cm3. calculate the pressure
We use the formula:
ΔP = (ΔH / ΔV) ln(T2 / T1)
where,
ΔH = change in enthalpy from solid to liquid = 4810 J/mol
ΔV = change in volume from solid to liquid = 0.55 cm^3/mol
T2 = 620 K, T1 = 600 K
So,
ΔP = (4810 / 0.55) ln(620 / 600)
ΔP = 286.76 J/cm^3
or converting to atm:
ΔP = 2830 atm
Answer:
ΔP = (ΔH / ΔV) ln(T2 / T1)
Explanation:
at 20 degrees celsius, how much sodium chloride could be dissolved in 2L of water
In this exercise we are going to deal with the solubility of a solution in which the amount of diluted sodium is 718 g.
What is the definition of a solution?Solutions are homogeneous systems formed by mixing two or more substances. Solutions are made up of two components: the solute, which is the one that dissolves and is found in the smallest amount, and the solvent, which is the component in the largest amount and acts by dissolving the solute.
In this way we have that:
35.89g of NaCl dissolve in 100 g of water at 20 °C.Making the calculus we have:
[tex](35.89g / 100 mL) * (2000) = 718 g[/tex]
See more about solution at brainly.com/question/7932885
FeCO3 → FeO + CO2 is what kind of reaction?
Double replacement
Decomposition
Synthesis
Single replacement
Which of the following indicates a chemical change?
Question 7 options:
A.an exploding firecracker
B.a freezing ice cube
C.wood breaking into splinters
D.a wire conducting electricity
Answer: Option (A) is the correct answer.
Explanation:
Chemical changes are defined as the change which tend to show difference in chemical composition of a substance.
For example, toxicity, reactivity, combustion etc are all chemical properties.
A chemical change will always lead to the formation of a new compound and this change is irreversible in nature by any physical means.
When we explode a fire cracker then it is a chemical change.
On the other hand, a change which is unable to bring any difference in chemical composition of a substance is known as a physical change.
For example, change in shape, size, mass, volume etc are all physical properties.
Physical changes are reversible in nature.
Thus, we can conclude that out of the given options an exploding firecracker indicates a chemical change.