acids and bases
What is the pH range for an acidic solution
Less than 7
You have 64 marshmallows, 150 graham crackers, and 200 chocolate pieces.
To make 1 smore you need 3 marshmallows, 5 graham crackers and 6 chocolate pieces.
What is the maximum number of smores you can make
21
CO₂ dissolved in H₂O makes ________
Carbonic Acid
molar mass of H2O?
18 g/mol
Can NH3 (Ammonia) form hydrogen bonds with other molecules of its own kind?
yes it can
Label the following equation
NH3+H20><NH4++OH-
BLA: H20
BLB: NH3
CA: NH4+
CB: OH-
ACBP: H20 and OH-
BCAP: NH3 and NH4+
What is the mass of this in grams? 1.50x10^23 atoms of gold (Au).
49.1
What causes ocean acidification?
caused by human activities like burning fossil fuels (coal, oil, gas).
Balance this equation
CH4+O2→CO2+H2O
1CH4+2O2→1CO2+2H2O.
What is the chemical formula for Magnesium Oxide?
MgO
In the reaction NH3 + H2O⇌NH4++OH-, which substance acts as the Bronsted-Lowry Base?
NH3 (It accepts a proton to become NH4+).
How many grams are in 1.204 x 1024 atom of carbon?
24
What changes have taken place in the ocean over the past 200 years?
Ph dropped to 8.1
Classify this reaction:
2Mg+O2→2MgO
Synthesis (or Combination) Reaction
What is the name of the compound FeCl3?
Iron(III) Chloride.
If you decreased the volume of the reaction container, what will happen to the equilibirum position and the concentration of NH3 (g)?
N2(g)+3H2(g)><2NH3(g)
equilibirum shifts right & concentration of NH3 increases
How many moles are in 80 grams of NaOH?
2
N^2(g)+3H^2(g)><2NH^3(g)
If the concentration of H^2 gas is increased what will happen to the equilibrium position and the amount of NH^3
The equilibrium shifts to the right and the concentration of NH^3 increases.
How do you balance the reaction for the combustion of methane?
CH4+O2>CO2+H2O
CH4+2CO2>CO2+2H20
Which of these molecules exhibit hydrogen bonding:
CH4, H2O, or HCI?
H2O
If [H+]=1.0x10-4m, what is the [OH-] concentration?
[OH-]=1.0x10-10M
(C3H8+5O2>3CO2+4H2O) what is the mole ratio of O2 to H2O?
5:4
2NO(g)+O^2(g)><2NO^2(g) ^H=-114 kJ
If the temperature of the system is increased what will happen to the amount of NO^2 at equilibrium?
The equilibrium shifts to the left and the amount of NO^2 decreases.
HCI + NaOH→NaCl+H2O
What type of reaction is this
Double Displacement reaction
What changes have happened in ocean acidity over the past 200 years?
30% increase