pRE-aice CHEM UNIT `

Mika measured the density of rubber to be 35g/mL, according to the accepted values sheet however, the density of rubber is 36.2g/mL. What is her % error?

What two types of measurements make up DENSITY? 

• Mass and Volume

• Temperature and Volume

• Volume and weight

• Grams and centimeters

Jack has a rock. The rock has a mass of 14g and a volume of 2cm³. What is the density of the rock?

• 28 g/cm³

• 1/7 g

• 7 g/cm³

• 7 mL

What is the volume of 150 grams of lead if it has a density of 11.3 g/cm³?

• 0.075 g

• 13.3 g

• 1695 cm³

• 13.3 cm³

How would you write 4.3756 x 10⁴ in standard form?

How do you write
1001
in scientific notation?

• 1.001 x 10³

• 1.01 x 10⁵

• 10.1 x 10³

• 1.0001 x 10⁴

Express the following in scientific notation:
0.0000002203

• .02203 x 10⁷

• 2.203 x 10^-7

• 22.03 x 10^-6

• 22.03 x 106

UNDERSTANDING
If the exponent is a positive number, you will have a _______ number

• Large

• small

The SI unit for temperature is __?

• degree celsius  (° C)

• degree centigrade  (°C)

• degree fahrenheit  (° F)

• kelvin  (K)

What SI unit is used to measure length?