Mg + 2HCl --> MgCl2 + H2
What mass of hydrogen is produced from the reaction of 75 g HCl and excess Mg?
What is 2.0 g H2?
N2 + 3H2 --> 2NH3 In the reaction above, a student reacted 28 g of nitrogen with an excess of hydrogen. According to the students measurements, the reaction produced 30 g of product. The theoretical yield was 34 g. What is the student's percent yield?
What is 88%?
Mg + 2HCl --> MgCl2 + H2
What mass of hydrochloric acid is needed to react with 2.50 moles of magnesium?
What is 182 g HCl?
If a single replacement reaction between beryllium and HCl is started with 10.7 g HCl, how many moles of Beryllium chloride will form?
.147 moles of Beryllium Chloride
Sodium and chlorine react to produce sodium chloride.
Determine the amount of product that can be produced from 24.7 g of sodium and excess chlorine.
What is 62 g NaCl?
Ammonia, NH3, is widely used as a fertilizer and in many household cleaners. How many moles of ammonia are produced when 6 mol of hydrogen gas react with an excess of nitrogen gas?
What is 4 mol NH3?
In a double replacement reaction run with calcium chloride and silver nitrate, 16.5 g CaCl2 is used. How many formula units of silver chloride are produced?
1.79 x 1023 formula units of silver chloride
Sodium hydroxide reacts with sulfuric acid (H2SO4) to form water and sodium sulfate. How many grams of sodium sulfate will be formed from 200 g NaOH and an excess of sulfuric acid?
What is 355 g Na2SO4?
Write the complete balanced equation for the following reaction: When lithium hydroxide pellets are added to a solution of sulfuric acid, lithium sulfate and water are formed.
What is: 2LiOH (s) + H2SO4 (aq) --> Li2SO4 (aq) + 2H2O (l)
States that mass is neither created nor destroyed during ordinary chemical or physical reactions. (This is why we balance chemical equations!)
What is the law of conservation of mass?
Hydrogen and oxygen gases react under a specific set of conditions to produce water. How many moles of oxygen would be required to produce 5.0 moles of water?
H2+O2----> H2O
What is 2.5 mol O2?
2H₂ (g) + O₂ (g) → 2H₂O (g)
If you start with 4.0 moles of H₂ and 3.0 moles of O₂, how many moles of H₂O can be produced, and which reactant is limiting?
H2
When copper (II) chloride reacts with sodium nitrate, copper (II) nitrate and sodium chloride are formed. If 15 g CuCl2 react with 20 g NaNO3, how much sodium chloride can be formed?
What is 13.0 g NaCl?
This questions is worth 1000 points! SURPRISE! Chlorine gas reacts with potassium bromide to produce potassium chloride and bromine gas. How many grams of potassium chloride can be produced from 300. g each of chlorine and potassium bromide?
What is 188 g KCl?