Chemistry, 17.10.2021 05:30 debramknoxx
a mixture of gases at atmosphere contain 65%ofnitrogen, 15%ofcarbon dioxide and 20%of oxygen by volume. what is the partial pressure in the atmosphere?
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If i make a solution by adding 83grams of sodium hydroxide to 750ml i’d water what is the molarity of sodium hydroxide
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Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore
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Which factor is likely to impact the possible number of compounds ?
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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)
Answers: 2
a mixture of gases at atmosphere contain 65%ofnitrogen, 15%ofcarbon dioxide and 20%of oxygen by volu...
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