This is true because if you put the tennis ball in boiling water, oxygen molecules in the ball will move more vigorously, thus the dent will disappear.
Answer:
No
Explanation:
The first 2 electrons are in the inner shell, and the other 6 are valence electrons. Oxygen needs 2 more electrons to fill its valence shell and satisfy the octet rule.
Answer:
the correct answer is CO2 (the last one)
Answer:
c.)the reactants have the same mass as the products
Explanation:
According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.
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