Convert the following energy units.

635 kJ to J

Which phrase describes air density? increases as altitude increases equals mass divided by volume pushes molecules in one direction exerts less pressure as it increases

An irregularly shaped stone was lowered into a gradulated cylinder holding a volume of water equal to 12mL. the height of the water rose to 17mL if the mass of the stone was 25g what was it's density?

List ten methods in separating mixture

2. Can oxidation occur without reduction? Explain.

What mineral is not scratched by a fingernail, but is scratched by a copper penny?

What must be true for diffusion of a solute to occur across a partition that separates two compartments?

Salt dissolving in water is what type of property?

Give an example of a model used in science that is larger than the real object and an example of model that is smaller than the real object

What happens to the conductivity of water when a base is dissolved in it

Henry Moseley organized the periodic table by A. atomic weight. B. atomic number. C. electronegativity. D. overall charge of atoms.