Q: What do you call the electrons in the outer energy level of an atom that are involved in chemical bonds? Choices: - force electrons - helium electrons - transitions electrons - valence electrons A:
valence electrons

(Question)
Q: What is the primary cause of air movement in the troposphere? Choices: - solar winds - asteroids - the ozone layer - differences in heating A:
(Answer)
differences in heating

Ques: Q: The simplest organic compounds have hydrogen and what else? Choices: - sodium - oxygen - nitrogen - carbon A:
Ans: carbon

(Q).
Q: What do you call the electrons in the outermost energy level of an atom? Choices: - Inner electrons - shell electrons - Proper electrons - valence electrons A:
(A).
valence electrons

Ques:Q: What occurs when some substances change chemically to other substances? Choices: - toxic reaction - spontaneous mutation - hormonal reaction - chemical reaction A:

Ans:chemical reaction

Q: Rainwater absorbs carbon dioxide (co 2 ) as it falls. the co 2 combines with water to form what? Choices: - carbon monoxide - nitrate acid - methane gas - carbonic acid A:
carbonic acid