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WorksheetsChemical Equation & Stoichiometry
Total questions: 10
Worksheet time: 32mins
6 CO2 + 6 H2O → C6H12O6 + 6 O2
What is the total number of moles of CO2 needed to make 2 moles of C6H12O6?
2.5
6
12
15
2 NaClO3 (s) → 2 NaCl (s) + 3 O2 (g)
12.00 moles of NaClO3 will produce how many grams of O2?
256 g of O2
576 g of O2
288 g O2
32 g O2
Balance this equation:
_ Al + _ HCl → _ H2 + _ AlCl3
2, 6, 3, 2
1, 3, 1, 2
4, 12, 3, 4
2, 1, 4, 5
2 NaClO3 (s) → 2 NaCl (s) + 3 O2 (g)
12.00 moles of NaClO3 will produce how many grams of O2?
256 g of O2
576 g of O2
288 g O2
188 g O2
Predict the volume occupied by 1.25 moles N2 gas at STP. Given that 1 mole of gas occupies 224 L at STP.
17.5 L
35 L
28 L
22.4 L
B2H6 + 3 O2 → 2 HBO2 + 2 H2O
What mass of O2 will be needed to burn 36.1 g of B2H6?
13.8 g O2
3.86 mol of O2
124 g O2
32.6 g O2
How many grams of aluminum sulfate would be formed if 250g H2SO4 completely reacted with aluminum?
All alkali metal react with water to produce hydrogen gas and the corresponding alkaline metal hydroxide. A typical reaction is that between lithium and water :
2 Li (s) + 2 H2O (l) →2 LiOH (aq) + H2 (g)
Calculate the mass of H2 gas formed when 40.0 g of Li react with water [Ar H =1.0, Li = 6.9, O =16.0]
4.21 g
7.31 g
5.80 g
4.42 g
Calcium carbonate decomposes when heated to release carbon dioxide gas.
CaCO3 (s) → CO2 (g) + CaO (s)
Calculate the volume of carbon dioxide gas released when 76.0 g of calcium carbonate decomposes.
100.09 dm3
75.93 dm3
22.40 dm3
17.01 dm3
