Chemistry, 14.01.2020 19:31 emilyanneK236
Hydrogen gas is produced when zinc reacts with hydrochloric acid. if the actual yield of this reaction is 85%?
how many grams of zinc are needed to produce 112 l of h2 at stp?
a. 95 g
b. 180
c. 280
d. 380
Answers: 3
Chemistry, 21.06.2019 21:40
During trial 2, what allowed you to determine that aluminum was the limiting reactant? check all that apply. all of the copper dissolved. all of the aluminum dissolved. the solution turned clear. the number of grams of copper(ii) chloride used in the reaction was greater than the number of grams of aluminum. the molar ratio of copper(ii) chloride to aluminum was greater than 3: 2, the equation’s molar ratio.
Answers: 2
Chemistry, 21.06.2019 22:10
What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance
Answers: 2
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How many liters of ethylene glycol antifreeze (c2h6o2), with a density of 1.100 g/l, would you add to your car radiator containing 15.0 kg of water if you needed to protect your engine to - 21.5°c? for water, kf = 1.86°c m -1.
Answers: 1
Chemistry, 22.06.2019 20:30
Draw a line graph showing the relationship between temperature in kelvin as a function of kinetic energy.
Answers: 3
Hydrogen gas is produced when zinc reacts with hydrochloric acid. if the actual yield of this reacti...
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