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Chemistry, 22.06.2019 17:30, llamasking
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)
Answers: 2
Chemistry, 22.06.2019 23:30, sweaversw9602
What are the similarities between compounds and mixtures?
Answers: 3
Chemistry, 23.06.2019 02:00, Paytonsmommy09
Butane gas reacts with oxygen gas to give carbon dioxide gas and water vapor (gas). if you mix butane and oxygen in the correct stoichiometric ratio, and if the total pressure of the mixture is 390 mmhg, what is the pressure (in mmhg) of water vapor after the reaction is completed (temperature and volume do not change).
Answers: 2
Chemistry, 23.06.2019 02:40, sherlock19
How can a mixture of salt water be separated into salt and water
Answers: 1
Which is true about the motion of electrons?
Electrons are moving around the nucleus through pathwa...
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