Metric Conversions
Convert 5 kilometers into meters
5000m
1 mole of any substance is equal to:
Many answers
As a given gas is compressed and the volume is reduced, the pressure of the gas
increases
What is the molar mass of the formula C2H5OH?
46 g/mol
The name for SO3-2 is
Sulfite ion
How many centiliters can be poured into a 50 milliliter beaker?
5 cL
2Al(s) + 3Cl2(g) → 2AlCl3(s)
What is the sum of the coefficients of the balanced equation?
7
One mole of an ideal gas occupies a volume of 22.4 liters at standard conditions (STP) which are (kelvin and torr)
273 K and 760 torr
Which type of reaction is occurring when given; 2NaClO3(s) → 2NaCl(aq) + 3O2(g)?
Decomposition
Which of the following is the correct formula for sulfuric acid?
H2SO4
What is the value of 7,000,001 in scientific notation?
7.0 x 106
2Al(s) + 3Cl2(g) → 2AlCl3(s)
Which substances in the equation are in the solid state of matter?
Al and AlCl3
When a balloon is put into an ice bath, making it colder, what will happen to the volume of gas in the balloon?
The volume decreases
In a combustion reaction, a hydrocarbon or alcohol must react with this substance:
oxygen gas
What is the chemical formula for nickel (II) chlorate?
Ni(ClO3)2
Express the value 0.000057 in proper scientific notation.
5.7 x 10-5
How many moles are in 4.56 x 1023 molecules of CH4 gas?
0.757 mol
Volume of a gas and temperature are directly proportional. This means that as the volume of a gas increases, temperature:
increases
Which of the following metals is the most reactive?
lithium
How many hydrogen atoms are present in one mole of C2H5OH?
6
What are three units for volume measurements?
L, mL, cm3
Students conduct an experiment in which they obtain 25.6 grams of PbI2. If the theoretical yield of PbI2 is 26.2 grams, what is their % yield?
97.7%
What law would be used if the variables of pressure, temperature, and volume are all undergoing changes
Combined Gas Law
The products of combustion reactions are always:
CO2 + H2O
What is the formula for copper II chloride?
CuCl2