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Balancing Equations/Solubility
Chemical Formulas
Dimensional Analysis
Naming
Review
100
The halogens are insoluble with three elements...
What is Hg Ag Pb
100
Describe a single replacement reaction.
What is AB + C --> AC + B During single replacement, one element replaces another element in a compound
100
If you are going 50 miles per hour, how many feet per second are you traveling?
What is 73.3 ft/sec?
100
IF5
What is iodine pentafluoride?
100
List the three subatomic particles and their respective charge?
What is: Protons (+) Electrons (-) Neutrons (o)
200
This group is insoluble with Ca Ba Sr Hg Ag Pb.
What is Sulfates?
200
Describe decomposition reactions.
What is AB --> A+B A decomposition reaction is a type of chemical reaction in which a single compound breaks down into two or more elements or new compounds.
200
An LED bulb uses 3.4 x 104 J of energy per hour. If electricity costs 8.2 cents per kWh, how many dollars does it cost to leave an LED bulb on for 1 week? (1 kWh = 3.6 × 106 J)
What is $0.13?
200
H2S
What is hydrosulfuric acid?
200
Formula for antimony tribromide?
What is SbBr3?
300
Write the balanced double replacement chemical equation and find the precipitate: Ba(NO3)2(aq) + Na2CrO4(aq) -->
What is Ba(NO3)2(aq) + Na2CrO4(aq) --> BaCrO4(s) + 2NaNO3
300
Formula for a combustion reaction
What is ____ + O2 ---> H20 + CO2 ?
300
You’re baking English muffins from an English recipe that calls for 3.00 × 102 g of bread flour. You only have measuring cups, so you go to the internet and find that the density of bread flour is 0.28 lbs/cup. How many cups of flour do you need? (1 kg = 2.205 lbs)
What is 2.36 cups Density gives us the relationship between mass and volume for a substance. For the bread flour, 0.28 lbs = 1 cup. One approach is to start with the mass of flour and use density to convert the mass to a volume.
300
Nitric acid formula
What is HNO3?
300
Who were the discoverers of the electron and nucleus of an atom?
What is The electron was identified by J. J. Thomson. The nucleus of the atom was discovered by Ernest Rutherford
400
Balance the following: Li2SO4 + K3PO4 → Li3PO4 + K2SO4
What is 3Li2SO4 +2K3PO4 →2Li3PO4 +3K2SO4
400
Predict the products and balance: KOH + H2SO4 --->
What is 2KOH + H2SO4 --> 2H2O + K2SO4
400
How much bleach would you need to make a quart of 5 percent bleach solution? (Hint 32oz=1 Quart)
What is 1.6oz of bleach?
400
HCN
What is hydrocyanic acid?
400
A plastic block has dimensions of 2.2 cm × 3.0 cm × 1.5 cm and a mass of 12.4 grams. Will the block float in water and why? (Density of water = 1 g / cm3)
What is: No, because the density of the block is 1.3 g/mL which is greater than the density of water?
500
For the following reaction write the chemical equation, balance the equation, and identify the precipitate. Sodium hydroxide + copper sulfate -->
What is 2NaOH(aq) + CuSO4(aq) --> Na2SO4(aq) + Cu(OH)2(s)
500
Predict and balance: Al(NO3)3 + H2SO4 --->
What is 2Al(NO3)3 + 3H2SO4 ---> Al2(SO4)3 + 6HNO3
500
An iceberg has a volume of 7845 ft3. What is the mass of this iceberg in kg? The density of ice is 0.917 g/cm3 at 0 °C. 1 in = 2.54 cm and 12 in = 1 foot.
What is 2.037 × 10^5 kg
500
H2CrO4
What is chromic acid?
500
Convert 47 degrees F into Kelvin
What is 281.5 K?