Reaction types
ReDox Reactions
Gas laws
Stochiometry
Nomenclature/lewis
100
What type of reaction is
CaCO3 (s) → CO2 (g) + CaO (s)
Decomposition
100
Identify what is being oxidized and reduced in this redox reaction by assigning oxidation numbers to the atoms.
2NO + Cl2 → 2NOCl
oxidized: N; reduced: Cl
100
A spray can is used until it is empty except for the propellant gas, which has a pressure of 1344 torr at 23 °C. If the can is thrown into a fire (T = 475 °C), what will be the pressure in the hot can
3.40 × 103 torr
100
How many grams of magnesium nitride is required to produce 25.00 g of magnesium hydroxide?
14.42g Mg(OH)2
STEAL: find the percent yield if the expirment resulted in 13g of Mg(OH)2
100
Name the following compound:
NaCl
Sodium Chloride
200
What type of reaction is this?
2H2(g) + O2(g) → 2H2O (g)
Combination
200
Identify what is being oxidized and reduced in this redox reaction by assigning oxidation numbers to the atoms.
2KrF2 + 2H2O → 2Kr + 4HF + O2
oxidized: O; reduced: Kr
200
What is the temperature of an 11.2-L sample of carbon monoxide at 744 torr if it occupies 13.3 L at 55 °C?
276°K (3°C)
200
A 56 kg sample of CO and a 6.0 kg sample of H2 are combined in a closed vessel, where they react according to the equation above.
After the reaction has proceeded to completion, how many moles of CH3OHg have been produced?
1.5x103 mol
200
Name the following compound:
Fe₂O₃
Iron (III) oxide
300
What type of reaction is this?
Mg (s) + HCl (aq) → MgCl2 (aq) + H2 (g)
Single Displacement
BONUS: what is the name of the acid?
300
Identify what is being oxidized and reduced in this redox reaction by assigning oxidation numbers to the atoms.
2Rb + MgCl2 → 2RbCl + Mg
oxidized: Rb; reduced: Mg
300
While resting, the average 70-kg human male consumes 14 L of pure O2 per hour at 25 °C and 100 kPa. How many moles of O2 are consumed by a 70 kg man while resting for 1.0 h.
R = 8.314
0.565 mol
300
When aluminum reacts with iron(III) oxide in a thermite reaction, molten iron and aluminum oxide are produced according to the balanced equation:
Al + Fe2O3 = Al2O3 + Fe
If 15.0 grams of aluminum react completely with excess iron(III) oxide,
how many grams of iron (Fe) will be produced?
39.0g
300
Write the name for:
Ca(NO₃)₂
Calcium Nitrate
400
Predict the products in the following reaction.
CuCl2(aq) + KOH(aq) →
CuCl2(aq) + 2KOH(aq) → 2KCl(aq) + Cu(OH)2(s)
400
Which substance loses electrons and which substance gains electrons in this reaction? 2Mg(s) + O2(g) → 2MgO
Mg loses, O2 Gains.
400
At conditions of 785.0 torr of pressure and 15.0 °C temperature, a gas occupies a volume of 45.5 mL. What will be the volume of the same gas at 745.0 torr and 30.0 °C?
Answer with 3 sig figs
0.644 atm
400
How many moles of CO2 and H2O will be produced by combustion analysis of 0.010 mol of styrene?
CO₂: 0.080 mol
H₂O: 0.040 mol
400
Name the following compound:
P₂O₅
Diphosphorus pentoxide
500
Predict the products for the following reaction, and what type of reaction it will be?
Ba(ClO3)2 (aq) + Li2SO4 (aq) →
Ba(ClO3)2(aq) + Li2SO4(aq) →2LiClO3 (aq) + BaSO4 (s)
Double Displacement.
500
Which substance is oxidized and which substance is reduced in this reaction? 2Fe(s) + 3I2(s) → 2FeI3(s)
Fe oxidized, I2 reduced
500
A weather balloon contains 8.80 moles of helium at a pressure of 0.992 atm and a temperature of 25 °C at ground level. What is the volume of the balloon under these conditions?
217L
500
Use the reaction below for the combustion of methanol. Any type of stoichiometry problem is possible.
2CH3OH(l)+3O2(g)→2CO2(g)+4H2O(l)
What mass of methanol is combusted in a reaction that produces 112 L of CO2
160. g CH3OH
500
Name the following acids:
a) HCl(aq)
b) H₂SO₄(aq)
a) HCl(aq) → Hydrochloric acid
b) H₂SO₄(aq) → Sulfuric acid