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6th-Chemical Changes
6th Grade - Chemical Properties and Changes
Question | Answer |
---|---|
ability of a substance to go through a chemical change easily | reactivity |
substances that do not go through chemical changes very easily | stability |
substances mixed together before a chemical change takes place | reactants |
a new substance that is formed after a chemical change | products |
a substance's ability to burn | combustibility |
Is a new substance ALWAYS formed during a chemical change? | YES |
Are the atoms ALWAYS rearranged during a chemical change? | YES |
Are the atoms rearranged during a physical change? | NO |
Can a chemical change ALWAYS be easily reversed? | NO |
Can a physical change USUALLY be reversed? | YES |
Is a change in size usually a physical or chemical change? | physical change |
Is a change in shape usually a physical or chemical change? | physical change |
Is heat or light being given off usually a physical or chemical change? | chemical change |
Is a strange change in color usually a physical or chemical change? | chemical change |
Are bubbles produced without heat usually a physical or chemical change? | chemical change |
Is tearing a substance into pieces usually a physical or chemical change? | physical change |
During a chemical change, will the mass of the reactants be the same as the mass of the product? | yes |
During a physical change, will the mass of the material before the change be the same of the mass of the material after the change? | yes |