Anions name start with the stem of the element name and end in what ending? Give an example
What is -ide
Ex: Fluoride, Chloride, Iodide, etc.
100
How much is a mole (Avrogado's number)?
What is 6.022 X 10^23
100
What happens in a double replacement reaction?
What is when positive ions are exchanged b/w ionic compounds
100
What are two things you can tell using the coefficients of a chemical reaction?
What is number of moles and number of molecules/atoms
100
Pressure of 8 atm into kPa is...?
What is 810.4 kPa
200
How do you name a cation with only one specific charge?
Give an example
The name of the element followed by ion
Ex: Hydrogen ion, Lithium ion, Magnesium ion etc.
200
How many mole of water are in 2.4 x 10^24 molecules of water?
What is 4 moles of water
200
What is a catalyst and where is it located if written in a chemical reaction?
What is a chemical formula written above or below the yield sign that help speeds up a reaction
200
In a chemical reaction the mass of the reactants should be ______ as the products.
What is the same or equal to
200
Liquids differ from gases because...
What is liquids have stronger intermolecular forces, they have a fixed volume/not easily compressed, and are more dense
300
How do you name a cation that has more than one type of charge?
Name of the element followed by Roman numerals of the charge followed by ion
Ex: Iron (III) ion
300
What is the molar mass of carbon dioxide?
What is 44 g/mol
300
What would be a product of the double replacement reaction between K2SO4 and CaO?
What is either K2O or CaSO4
300
What is the percent yield of a chemical reaction that is suppose to produce 83 g, but actually produced 79 g?
What is 95%
300
When boiling a liquid the atmosphere is pressure and the vapor pressure have to be the ______. If you wanted to decrease the boiling point what would you have to do or go?
What is the same. You would have to lower the atmospheric pressure, or go to a place below sea level
400
Name these three different compounds:
1. CuS
2. CaCO3 (subscript 3 on the oxygen)
3. N2O (subscript 2 on the nitrogen)
What is 1. Copper (II) sulfide
2. Calcium carbonate
3. Dinitrogen monoxide
400
The empirical formula of a compound is CH2F. The molar mass of this compound is 66.0g. The molecular formula of the compound is:
What is C2H4F2
400
What are the products (balanced) of a combustion reaction of butane, C4H10?
What is 10 H2O and 8 CO2
400
3 Cu + 8 HNO3 → 3Cu(NO3)2 + 2NO + 4H2O
Calculate the number of moles of Nitrogen monoxide are produced when 8 moles of what are formed in the reaction.
What is 4 moles of nitrogen monoxide
400
Sublimation is what and why is it possible?
Sublimation is when a solid turns into a gas and it is possible because solids have a vapor pressure too.
500
Name these 3 acids:
1. HCl
2. H2SO3 (subscript 2 on hydrogen and subscript 3 on oxygen)
3. HNO3 (subscript 3 on oxygen)
What is 1. Hydrochloric acid
2. Sulfurous acid
3. Nitric acid
500
What is the volume in liters at STP of 70 g of carbon monoxide?
g--> mol --> L
What is 56 L
500
Balance the following chemical reaction:
Br2 + KI --> KBr + I2
What is Br2 + 2 KI --> 2 KBr + I2
500
3 Cu + 8 HNO3 → 3Cu(NO3)2 + 2NO + 4H2O
How many grams of Cu would be needed to react with 6 moles of HNO3