Is h2o a compound or element

What does air have to do with light refraction?

State evidence from the balanced equation that indicates the reaction is exothermic.

How many moles of hydrogen gas would be needed to react with excess carbon dioxide to produce 19.1 moles of water vapor?

Identify the major attractive force in HF molecules. A) London Dispersion Forces (LDFs) B) dipole-dipole interactions C) hydrogen bonding D) ionic bonding E) polar covalent bonds

Which compound has both ionic and covalent bonding? (a) CaCO3 (b) CH2Cl2 (c) CH3OH (d) C6H12O6

Covalent, ionic, and metallic are the three types of attraction between atoms.

A red blood cell has a round structure. A muscle cell has a long, thin structure. Which statement best explains why these two types of cells have different structures

Does oxidation cause misfolding of protein

A solution is a homogenous mixture of solute and solvent. There are different types of solutions. A carbonated drink is an example of a solution where the solute is a gas and the solvent is a liquid.

Nitrogen molecules rest with oxygen molecules. Nitrogen monoxide molecules are made. N2 + O2 → 2NO Nitrogen molecules and oxygen molecules react extremely slowly, even at 200°C.