Vocabulary
The study of the composition of matter and the changes matter undergoes.
Chemistry
If you break an glass in the lab, what should you do?
Tell Ms. Carr
Convert the following to scientific notation: 320000
3.2x105
How many significant figures are in the number 1000
1
A substance has a mass of 50 g and occupies a volume of 20 cm3. Calculate the density of the substance.
3 g/cm3
Studying or learning material for the sake of knowledge (for your own benefit).
Pure Chemistry
What do we use to put out someone who is on fire?
Fire Blanket
Convert the following into scientific notation: 0.00901
9.01x10-3
How many significant figures are in the number 0.0000000909
3
An object has a density of 8.50 g/cm3 and a volume of 15.0 cm3. What is the mass of the object?
128 g
Quantitative Data
Numerical, measured observations; numbers, age, date, measurements.
What is the name of the piece of lab equipment we use to heat up and catch fire to some objects?
Convert the following to scientific notation: 520,000,000
5.2x108
15.22 + 7.345 = ?
An experiment yields a yield of 85.0 g for a reaction, while the theoretical yield is 90.0 g. Calculate the percent error.
5.56%
Mass per unit volume.
Density
What piece of lab equipment do we use to measure the volume of an object via displacement?
Graduated Cylinder
Convert the following from scientific notation: 1.44x104
14,400
5.21 x 6.0 = ?
31
The accepted value for the mass of a compound is 18.02 g. If a student measures the mass as 17.80 g, calculate the percent error.
1.22%
Measures the amount of water that is displaced when an object is dropped into a graduated cylinder.
Displacement
What is the use of a balance?
To measure the mass of an object.
Convert the following from scientific notation:
5.25x10-5
0.0000525
How many significant figures are in the number 1000.0
5
A metal cube has a side length of 2 cm and a mass of 72 g. Calculate the density of the metal.
9 g/cm3