What is shape, size, density, melting point, boiling point, freezing point
100
Round the number to 3 significant figures 0.0089420 g
What is 0.00894 g
100
Sodium Chloride is broken down into sodium and chlorine gas. The starting mass of sodium chloride is 122.2g and the ending mass of chlorine gas is 44.6g. What mass of sodium is produced?
What is 77.6 g of sodium
200
The units for density if mass is g and volume is cm3
What is g/cm3
200
How is the density formula rearranged to solve for volume?
What is V = M/D
200
Classify Sodium Chloride
What is Compound
200
Calculate 4.25g / .15g
What is 28 g
200
If the starting mass of compound 1 is 45.6g, assuming no transfer of matter occurred during the reaction what is the final mass of compound 2?
What is 45.6g
300
The amount of time in SI units for 2min and 20seconds
What is 140s
300
What is the mass of an object if the density is 2.7g/mL and the volume is 20mL
What is 54g
300
List the 4 ways to separate a mixture
What is filtration, distillation, chromatography, crystallization
300
Calculate 6.851 s - 1.21s
What is 5.64s
300
What is the percent by mass of 16.0 g of oxygen in a reaction to produce 38.2g magensium oxide
What is 41.9% O
400
The kg in 4.5 g
What is 0.045 kg
400
A 20 g piece of aluminum has a density of 2.7g/cm3. If the piece is cut in half so the new mass is 10.0g, what is the density?
What is 2.7g/cm3. The density does not change. it is based on the substance, not the amount
400
How would you best separate a mixture of sand, salt, and water?
What is filter the sand from the salt and water. Use distillation to boil off the water and collect the salt crystals.
400
Using the following data tell whether or not it is accurate or precise
Accepted value of mass is 5.4g
Experimental Values are 5.2g, 5.6g, 5.0g
What is 2.4% error. Accurate
400
When mercury oxide is heated, it decomposes into mercury and oxygen. If 42.7g of mercury oxide decompose producing 14.2g of oxygen, what is the percent by mass of mercury in the mercury oxide?
What is 66.7% Mercury
500
the correct scientific notation for the number 0.001278
What is 1.278 x 10 -3
500
What is the density of a 15.0g object submerged in water when the starting volume of the water was 22.6mL and the final volume of the water was 30.4mL after adding the object?
What is 1.92 g/mL
500
Is mass an intensive or extensive property of matter?
What is Extensive
500
Calculate 4.62 + 3.547 + 5.1
What is 13.3
500
Magensium combines with Chlorine Gas to produce Magnesium Chloride. If 52.3g of MgCl are produced from 28.6g of magensium and excess chlorine gas, what is the percent by mass of the chlorine gas?