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_______________ changes happen when atomic bonds are broken or created during chemical reactions.
Chemical Change
all of the above
Chemical
wood burning in a fireplace
cost
baking soda
physical, chemical
Physical change
Scientists study the characteristics of substances to better understand the natural world. Which of the following is not a chemical or physical characteristic of a substance?
Chemical Change
all of the above
Chemical
wood burning in a fireplace
cost
baking soda
physical, chemical
Physical change
baking soda + vinegar → gas + white solid Which of the following is a reactant in the equation?
Chemical Change
all of the above
Chemical
wood burning in a fireplace
cost
baking soda
physical, chemical
Physical change
Chewing food to break it down into smaller particles represents a _________ change, but the changing of starch into sugars by enzymes in the digestive system represents a ___________change.
Chemical Change
all of the above
Chemical
wood burning in a fireplace
cost
baking soda
physical, chemical
Physical change
You blow dry your wet hair. What type of change?
Chemical Change
all of the above
Chemical
wood burning in a fireplace
cost
baking soda
physical, chemical
Physical change
Which of the following is an example of a chemical change?
Chemical Change
all of the above
Chemical
wood burning in a fireplace
cost
baking soda
physical, chemical
Physical change
In a fireworks show, the fireworks explode giving off heat and light. What type of change?
Chemical Change
all of the above
Chemical
wood burning in a fireplace
cost
baking soda
physical, chemical
Physical change
Which of the following is evidence of a chemical change?
Chemical Change
all of the above
Chemical
wood burning in a fireplace
cost
baking soda
physical, chemical
Physical change
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