Basic Chemistry
Anything that has mass and takes up space
matter
The mass of an object is 0.030 kg, what is the object's mass in mg?
30,000mg
How many significant figures are in 0.000300
3
What is the equation we use to find density
density = mass divided by volume
How many centimeters are in one inch
2.54cm
What is the base metric unit we use to describe mass
grams
1 cubic centimeter is the same as what?
1mL
How many significant figures are in 3.0220cm?
5
What is the equation to find volume if you know the mass and density?
volume equals mass/density
Density means how ____________ something is in a given space
compact
The system of standard units we use in Chemistry to study measurements
The metric system
If the length of a race car track is 2.0km, how many cm is that?
200, 000 cm
Convert 26, 789, 000 to scientific notation
2.6789 x 10 to the seventh power
What are the units we use when we have density
m/volume.... this is usually grams/ml
How do you find the volume of a rectangle?
length x width x height
What is the basic unit we use to measure distance
meter
The length, width, and height of a small box are measured to be 1.1in, 3.2 in, and 4.6 in. What is the box' volume in liters?
hint: 1 inch is the same as 2.54cm
hint: we need to get to cubic centimeters, then to mL, then to Liters
0.265338 L
What is 27.5698 x 3.67 using significant figures in the answer?
101
A gold miner has just found a nugget of pure gold. He measures its dimensions and then calculates its volume to be 0.125L. Knowing that the density of gold is 19.3 grams per mL, calculate the mass of the miner's nugget
2, 412.5g
Density is considered a characteristic of a pure element, true or false
True
What surrounds us daily and has no mass and takes up no space
light
The area of a room is 16meters squared. What is the unit of the room in millimeters squared?
1mm=0.001m
16meters squared over 1 x the square of 1mm/0.001m equals
16,000,000 millimeters squared
What is 76.853+26.1158+37.1 using the adding rules for significant figures, and round correctly
140.1
The density of silver is 10.5grams per centimeter cubed. If a jeweler makes a silver bracelet out of 0.081kg of silver, what is the bracelet's volume in mL?
7.7 mL
Does the air we breathe have mass?
Yes