10 ✨ Stoichiometry

Quiz
•
Science
•
11th Grade
•
Medium
Standards-aligned
Gabbriel Stivers
Used 1+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mole-to-mole calculations: Please show your work! How many moles of K₂O will be formed when 1.52 moles of K reacts with O₂ according to the following reaction: 4 K + O₂ → 2 K₂O
0.76 moles
1.52 moles
3.04 moles
2.28 moles
Tags
NGSS.HS-PS1-7
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many moles of Cu are needed to produce 0.25 moles of Cu₂S according to the following reaction: 2 Cu + S → Cu₂S?
0.25 moles
0.5 moles
1 mole
2 moles
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many moles of Na are needed to react with H₂SO₄ to produce 3.75 moles of Na₂SO₄ according to the following reaction: 2 Na + H₂SO₄ → Na₂SO₄ + H₂?
3.75 moles
7.50 moles
1.88 moles
5.63 moles
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mole-to-mole calculations: Please show your work! How many moles of CaO will be produced when 1.6 moles of Fe₂O₃ reacts with Ca₃(PO₄)₂ according to the following reaction: Fe₂O₃ + Ca₃(PO₄)₂ → 2 FePO₄ + 3 CaO
1.6 moles
2.4 moles
3.2 moles
4.8 moles
Tags
NGSS.HS-PS1-7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mass-to-mass calculations: Please show your work! How many grams of Fe is needed to produce 96 grams of Fe2S3 according to the following equation? (58.845 g Fe = 1 mol Fe, 207.9 g Fe2S3 = 1 mol Fe2S3) 2 Fe + 3 S → Fe2S3
54.4 grams
48.6 grams
32.8 grams
64.0 grams
Tags
NGSS.HS-PS1-7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mass-to-mass calculations: If 48 g of Mg reacts with oxygen gas, how many grams of MgO will be formed according to the following equation? (24.305 g Mg = 1 mol Mg, 40.304 g MgO = 1 mol MgO) 2 Mg + O2 → 2 MgO
80.608 g
96.608 g
40.304 g
48.000 g
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many grams of CuCl can be produced from the reaction of 73.5 g of Cu2O according to the following reaction? (98.999 g CuCl = 1 mol CuCl, 143.09 g Cu2O = 1 mol Cu2O) Cu2O + 2 HCl → 2 CuCl + H2O
50.9 grams
101.8 grams
73.5 grams
147 grams
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mass-to-mass calculations: Please show your work! If 11.5 grams of Cl2 reacts with aluminum, how many grams of AlCl3 will be formed according to the following reaction? (70.9 g Cl2 = 1 mol Cl2, 133.34 g AlCl3 = 1 mol AlCl3) 2 Al + 3 Cl2 → 2 AlCl3
10.8 grams
15.2 grams
20.5 grams
25.0 grams
Tags
NGSS.HS-PS1-7
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