Chemistry, 22.05.2021 21:20 braedenmoses7
3.20 g of magnesium reacts with hydrochloric acid, generating
hydrogen gas according to the reaction below. The hydrogen
gas is collected over water.
Mg(s) + 2HCl(aq) MgCl2(aq) + H2(8)
If 2.97 L of hydrogen gas is collected at 760.0 mmHg and
20°C, what was the percent yield of the reaction?
Answers: 1
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Avariable that is not being directly tested during an experiment should be changed varied experimented controlled
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1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6
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Chemistry, 22.06.2019 23:30
Imagine a small synthetic vesicle made from pure phospholipids enclosing an interior lumen containing 1 mm glucose and 1 mm sodium chloride. if the vesicle is placed in pure water, which of the following happens faster? a. na+ diffuses out. b. cl– diffuses out. c. h2o diffuses in. d. glucose diffuses out. e. sodium chloride diffuses out.
Answers: 3
3.20 g of magnesium reacts with hydrochloric acid, generating
hydrogen gas according to the reactio...
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