chemistry test

Match it! Select the correct answer from the pull down...Good luck!

which of the following is not a state of matter

Sodium has how many protons

What is the ratio of oxygen molecules in water as opposed to hydrogen peroxide

Sodium is classified as a

the law of conservation of mass states that

when two elements combine in a chemical reaction the mass of the new substance:

an element that has properties of both metals and nonmetals is

which of the following is an example of a chemical change