Chemical Reactions
Combining hydrogen and fluorine together to make hydrogen fluoride is an example of this type of reaction.
What is synthesis?
This is the approximate mass of 1 mole of lithium rounded to the nearest whole number. (Including units!)
What is 7 grams?
This is the percentage of oxygen in water.
What is 89%?
These three things are conserved during a chemical reaction.
What are mass, charge, and energy?
This is approximate mass of 1.5 moles of magnesium bromide rounded to the nearest whole number (including units).
What is 184 grams? (24+80+80)
The formula of the compound made of 40% C, 6.67% H, and 53.33% O.
What is CH2O?
The products of a combustion reaction are always these.
What are water and carbon dioxide?
Once this reaction is correctly balanced, this is the ratio of moles of O2 to MgO.
Mg + O2 --> MgO
What is 1 to 2?
2 Mg + O2 --> 2 MgO
The formula of a compound made of 50.05% sulfur and 49.95% oxygen.
What is SO2?
A chemical reaction is balanced when there are the same number of these on both sides of the equation.
What are atoms?
This would be the number of moles of H2O produced if 0.36 mol CH4 combusted.
CH4 + 2 O2 --> CO2 + 2 H2O
What is 0.72 mol H2O?
The formula for a compound made of 64.80% carbon, 13.62% hydrogen, and 21.58% oxygen.
What is C4H10O?
These are the coefficients needed to balance the reaction:
____ H2 + ____ O2 --> ____ H2O
What are 2, 1, and 2?
2 H2 + O2 --> 2 H2O
This is the number of grams of KI produced when starting with 2 mol of K.
2K + I2 --> 2KI
What is 332 g KI? 2 mol KI = 332 g
1 mol KI = 166 g
The formula for a compound made of 28.2% nitrogen, 20.8% phosphorus, 8.1% hydrogen, and 42.9% oxygen.
What is N3H12PO4?
or (NH4)3PO4
The correct products to the reaction (also balance the equation):
MgCl2 + Al --> ?
3 MgCl2 + 2 Al --> 2 AlCl3 + 3 Mg
This is the mass of water produced when 4 grams of H2 completely react.
2 H2 + O2 --> 2 H2O
What is 36 grams of H2O?
4 g H2 = 2 mol H2
2 mol H2 = 2 mol H2O
2 mol H2O = 36 grams
The formula of the compound made of 69.94% iron and 30.06% oxygen.
What is Fe2O3?