45 points + Brainliest Answer!!!NEED HELP!!
Question 1
When magnesium metal and an aqueous solution of hydrochloric acid combine, they produce an aqueous solution of magnesium chloride and hydrogen gas. Using the equation, Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g), if 36.5 g of Mg and 2 moles of HCl are supplied, identify the limiting reagent.
Mg
HCl
MgCl2
H2
Question 2
When magnesium metal and an aqueous solution of hydrochloric acid combine, they produce an aqueous solution of magnesium chloride and hydrogen gas. Using the equation, Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g), if 24.3 g of Mg and 75.0 g of HCl are allowed to react, calculate the mass of H2 that is produced.
1.01 g
2.02 g
4.01 g
5.00 g
Question 3
When magnesium metal and an aqueous solution of hydrochloric acid combine, they produce an aqueous solution of magnesium chloride and hydrogen gas. Using the equation, Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g), if 48.6 g of Mg and 150.0 g of HCl are allowed to react, identify the limiting reagent.
Mg
HCl
MgCl2
H2
Question 4
CH4 + 2O2 → CO2 + 2H2O
If CH4 is the limiting reactant in the reaction, which statement(s) are true?
The amount of CO2 produced depends on the amount of CH4 in the reaction.
The amount of CO2 produced depends on the amount of O2 in the reaction.
The amount of H2O produced depends on the amount of O2 in the reaction.
The amount of H2O produced depends on the amount of CH4 in the reaction.
Question 5
Red mercury (II) oxide decomposes to form mercury metal and oxygen gas according to the following equation: 2HgO (s) → 2Hg (l) + O2 (g). If 3.00 moles of HgO decompose to form 1.25 moles of O2 and 503 g of Hg, what is the percent yield of this reaction?
41.6%
62.5%
83.3%
96.9%
Question 6
In the reaction, S8 + 12O2 → 8SO3, 128 grams S8 react with 400 grams of O2. 320 grams of CaBr2 are obtained from the reaction. What is the percent yield of the reaction?
32%
43%
80%
100%
Question 7
In the reaction, 4P + 5O2 → 2P2O5, 124 grams P react with 200 grams of O2. 200 grams of P2O5 are obtained from the reaction. What is the percent yield of the reaction?
62%
44%
70%
100%
Question 8
In the reaction, 2NaBr + CaF2 → 2NaF + CaBr2, 103 grams NaBr react with 85 grams of CaF2. 95 grams of CaBr2 are obtained from the reaction. What is the percent yield of the reaction?
83%
89%
95%
100%
THANKS!!!!!
