Which of the following substances are elements
a. water, plastic, glass
b. helium, neon, sil...
Chemistry, 01.05.2021 03:10, austinwag123
Which of the following substances are elements
a. water, plastic, glass
b. helium, neon, silver
c. protons, neutrons, electrons
d. dish soap, vegetable oil, lotion
Answers: 2
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Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)
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