Term 1 Test 2

What are elements that are shiny, conduct electricity and heat called?

What type of reactions usually feel hot?

What is silicon, which has a dull, metallic luster, conducts heat well, and is brittle?

What is water, made up of hydrogen and oxygen, classified as?

Is the air around us a mixture of gases?

What is the term for a substance made of only one type of atom?

What do we call a chemical reaction that absorbs heat?

What is the smallest unit of a chemical element?

What is a combination of two or more substances that are not chemically bonded?

What is the term for the ability of a substance to conduct electricity?