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Chapter-1-Chemistry
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Question | Answer |
---|---|
What is chemistry? | Chemistry is the study of matter |
What is matter made up of? | Matter is made up of atoms and molecules. |
What do solids, liquids, and gases have in common? | They all have molecules and atoms. |
What happens to molecules and atoms when they are cooled? | They move slower and compress together. |
What happens to molecules and atoms when they are heated? | They move faster against each other, expand and spread out. |
What is a molecule made up of? | A molecule is made up of two or more atoms connected or bonded together. |
What are the two big ideas that are always true about matter? | That matter is made up of tiny particles called atoms and molecules. and that the atoms or molecules that make up matter are always in motion. These ideas make up the Kinetic-molecular theory of matter. |