Mole - Mole
CaO(s) + CO2(g) → CaCO3(s)
How many moles of CaO are needed to produce 3.0 moles of calcium carbonate (CaCO₃)?
3.0 mol CaO
N2(g) + 3H2(g) → 2NH3(g)
How many grams of ammonia (NH₃) are produced when 4.0 moles of nitrogen (N₂) react?
136.272g NH₃
Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)
How many moles of hydrogen gas (H₂) are produced if 65.4 grams of zinc (Zn) react completely with hydrochloric acid?
1.0 mol H₂
2H2(g) + O2(g) → 2H2O(g)
How many grams of water (H₂O) are produced when 8.0 grams of hydrogen gas (H₂) react with excess oxygen gas (O₂)?
71.5g H₂O
What is the Third planet from the sun??
The Earth
N2(g) + 3H2(g) → 2NH3(g)
How many moles of ammonia (NH₃) are produced when 4.0 moles of nitrogen (N₂) react?
8.0 mol NH₃
CaO(s) + CO2(g) → CaCO3(s)
How many grams of CaO are needed to produce 3.0 moles of calcium carbonate (CaCO₃)?
168.24g CaO
C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(g)
How many moles of water (H₂O) are produced if 44.0 grams of propane (C₃H₈) combust completely?
3.99 mol H₂O
C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(g)
How many grams of CO₂ are produced when 44.0 grams of propane (C₃H₈) are combusted completely?
131.6g CO₂
What weighs more: a pound of feathers or a pound of uranium?
They weigh the same
2NaCl(aq) + CuSO4(aq) → CuCl2(aq) + Na2SO4(aq)
How many moles of NaCl are required to react with 0.5 moles of CuSO₄?
1.0 mol NaCl
C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(g)
How many grams of oxygen (O₂) are required to react with 5.0 moles of ethane (C₂H₆)?
1120.0g O₂
2KClO3(s) → 2KCl(s) + 3O2(g)
How many moles of oxygen gas (O₂) are produced when 122.4 grams of KClO₃ decompose?
1.50 mol O₂
Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)
How many grams of hydrogen gas (H₂) are produced when 130.0 grams of zinc (Zn) react with excess HCl?
4.01g H₂
If you were born 21 years ago, how old are you know?
21 years old
2KClO3(s) → 2KCl(s) + 3O2(g)
How many moles of oxygen (O₂) are produced when 4.0 moles of potassium chlorate (KClO₃) decompose?
6.0 mol O₂
2NaCl(aq) + CuSO4(aq) → CuCl2(aq) + Na2SO4(aq)
How many grams of NaCl are required to react with 0.5 moles of CuSO₄?
58.44g NaCl
CaCO3(s)→CaO(s)+CO2(g)
How many moles of calcium carbonate (CaCO₃) are decomposed if 250.0 grams of CO₂ are released?
5.68 mol CO₂
2KClO3(s)→2KCl(s)+3O2(g)
How many grams of oxygen gas (O₂) are produced when 245.1 grams of potassium chlorate (KClO₃) decompose?
96.00g O₂
What goes on 4 legs in the morning, 2 legs at noon, and 3 legs in the evening?
Man
C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(g)
How many moles of oxygen (O₂) are needed to react with 5.0 moles of ethane (C₂H₆)?
35.0 mol O₂
2KClO3(s) → 2KCl(s) + 3O2(g)
How many grams of oxygen (O₂) are produced when 4.0 moles of potassium chlorate (KClO₃) decompose?
192.00g O₂
2H2(g)+O2(g)→2H2O(g)
How many moles of oxygen gas (O₂) are required to react with 36.0 grams of hydrogen gas (H₂)?
8.93 mol O₂
CaO(s)+CO2(g)→CaCO3(s)
How many grams of calcium carbonate (CaCO₃) are produced when 56.0 grams of calcium oxide (CaO) react with excess CO₂?
100.09g CaCO₃
I live in a house where all the walls face south and a bear walks by my front window. What color is the bear?
White (Polar Bear)