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chemistry
Questions on chemistry
Question | Answer |
---|---|
What makes a substance pure | a substance is pure if it is made of only type of atom or molecule |
What is a compound | Compounds are 2 or more elements together |
What is a element | Elements are 1 type of atom |
What is a mixture | 2 or more molecules put together but not chemically combined |
What is weight | weight is the measure of the force of gravity on a object |
What is mass | mass is the objects measurement of the amount of matter in the object |
What is volume | How much space that matter occupies |
What is density | How much mass is in the object |
What is physical change | Is any change that alters the form or appearance of matter |
What is chemical change | a change in matter that produces one or more new substances |
What is energy | is the ability to do work or cause change |
What is temperature | a measure of the average energy in a object |