Answer:
the same number of protons
Explanation:
Answer:
Demonstration 1 showed a chemical change because a new gaseous substance was formed, and demonstration 2 showed a physical change because liquid water became water vapor.
Explanation:
Chemical changes alter the chemical makeup of a subject, and a physical change only alters the appearance of a subject, not the chemical makeup.
Answer:
B. Coal
Explanation: Coal is mined to produce energy.
C is the answer hope the answer is right
