Changes in energy and formation of new substances.
Answer: B.
Explanation:
Trust me already took the quiz on it its B.
Li₂O
Explanation:
Elements or ions exchange their combining powers or their simplest whole number ratio during the formation of a chemical formulae of compounds.
The combining power of lithium is 1
Oxygen is 2
Lithium Oxygen
Combining
power 1 2
Exchange of
valencies 2 1
Molecular formula of the compound gives Li₂O
Learn more:
Molecular formula brainly.com/question/5537295
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