Reactions
What is/are the reactant(s) in the chemical equation: CH4 + O2 -> CO2 + H2O?
CH4 and O2
How many atoms are in 1 mole of Lithium?
6.02x1023 atoms
What type of bonds form between water molecules?
Hydrogen bonds
True or False: Energy is lost in chemical reactions
False, energy is always transferred
Reduction is __________ electrons.
gaining
What is the correct chemical formula for dinitrogen trioxide?
N2O3
What is the molar mass of H2O?
18 g/mol
List one way to increase solubility
Increase Temperature
Increase Pressure
What happens to temperature when a a solid melts?
Temperature stays constant
What are the oxidation numbers for MgCl2
Mg= +2 Cl=-1
What is the correct chemical formula for copper (II) bromide?
CuBr2
How many moles of oxygen will react with 2 moles of glucose? C₆O₁₂H₆ (s) + 6 O₂ (g) ⟶ 6 CO₂ (g) + 6 H₂O (l)
12 moles of glucose
How many L of a 2.0M NaCl solution contains 7.4 moles of salt?
3.7L
How could we shift the equilibrium to the left: 4 HCl (g) + O₂ (g) ⇌ 2 Cl₂ (g) + 2 H₂O (g)
increase the products
decrease the reactants
decrease pressure
What is the monomer of a carbohydrate?
monosaccharide
What type of reaction is: AgNO3 + NaCl -> AgCl + NaNO3
Double Displacement Reaction
How many liters of Fluorine gas are in 8g?
Polar
H - O - H
S+ S- S+
True or false: Equilibrium occurs when the concentration of products equals that of the reactants
False. The rate is equal
Draw a 4 carbon carboxylic acid.
O
ll
C-C-C-C-OH
Balance the following equation: Fe2O3 + C ->Fe +CO2
2Fe2O3 + 3C ->4Fe +3CO2
How many grams of Fe₂O₃ are formed when 25.4 g of oxygen reacts? 4 Fe (s) + 3 O₂ (g) ⟶ 2 Fe₂O₃ (s)
84.5g of Fe₂O₃
What is the pH of a solution that has a [OH-] = 1.0x10-4
10
Calculate the energy required to produce 2.5 mol Cl₂O₇ on the basis of the following balanced equation. 2Cl₂ (g) + 7 O₂ (g) + 60 kcal ⟶ Cl₂O₇ (g)
150kcal
What molecule would be in the cathode of the cell that contains the reaction: H₂O + Cl₂ + SO₂ ⟶ HCl + H₂SO₄
Chlorine