Why does air have weight?
A. Because everything has weight
B. The force of gravity...
Chemistry, 13.03.2020 01:35 dbn4everloved
Why does air have weight?
A. Because everything has weight
B. The force of gravity acts on the air molecules’ mass
C. The pressure of the air molecules colliding with each other gives them weight
D. Air fills its entire volume, producing weight
Answers: 2
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You are performing an experiment in a lab to attempt a new method of producing pure elements from compounds. the only problem is that you do not know what element will form. by your previous calculations you know that you will have 6.3 moles of product. when it is complete, you weigh it and determine you have 604.4 grams. what element have you produced?
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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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