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AssignmentMultiple Select

Lab: Ionic and Covalent Bonds

Question 9 • Chemistry 1A - Mr. Kaan

Which of the following happens during a chemical change? Check all of the boxes that apply.

Answer
A
One atom or more changes into atoms of another element.
B
New substances with different properties are formed.
C
Solids, liquids, or gases may form.
D
Reaction mixtures always give off some heat.
E
Reaction mixtures always need to be heated.