Angie is testing whether ammonia and vinegar are acids or bases. Litmus paper helps determine whether a chemical is an acid or a base. A drop of ammonia turns the litmus paper blue, and a drop of vinegar turns the litmus paper red. What can Angie

Police can detect speeding motorists with a radar gun. What property of waves enables them to do this?

The chemical formula for a compound that has one Calcium atom and 2 Chlroine atoms is _______.

Which of the following correctly converts 0.23 kilograms (kg) into grams (g)?

Which of the following is the structure of an atom most like?

Which atomic particles will you find inside of the nucleus of an atom?

If an element has an atomic number of 12, how many electrons does it have?

If an element has an atomic number of 22 and the atomic mass is 48 how many neutrons does it have?

Ex. A) A piece of paper is burned. Ex. B) A piece of paper is folded in half. Based on the information above, Scenario A is a __ change and Scenario B is a __ change.

WARNING: Goggles and Aprongs Must Be Worn at ALL Times. This sign was found at the entrance of a chemistry laboratory. It is an important sign because _____.

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