Chemistry

Density

100

How do you calculate density?

D=M/V

200

Calculate the density of a material that has a mass of 52.457 g and volume of 13.5cm^3.

3.89g/cm²

300

Pure gold has a density of 19.32g/cm^3. How large would a piece of gold be if it had a mass of 318.97 g?

16.51 cm³

400

What volume would a 0.871 g sample of air occupy if the density of air is 1.29 g/L?

0.675 L

500

A rocks volume is 22.7 cm³. The mass is 39.943 g. What is the density of the rock?

1.75 g/cm³

Electron Configuration

100

What is the electron configuration for H? 

1s

200

What is the electron configuration for Li?

1s² 2s

300

What is the electron configuration for Be?

1s² 2s²

400

What is the electron configuration for B?

1s² 2s² 2p

500

What is the electron configuration for Ne?

1s² 2s²2p⁶

Sci. Notation

100

What is 0.0044 in scientific notation?

4.4×10^-3

200

The volume of air Is 53.28 m³ Convert into scientific notation.

5.328×10 m³

300

Write 15,450,000,000 in scientific notation.

15.45 x 10⁷

400

What is 1492 in scientific notation?

1.4 x 10³

500

3.95 x 10^-4/6.1 x 10⁷

6.475 x 10^-10

Noble Gas Notation

100

What is the Noble gas notation for V?

[Ar] 3d³ 4s²

200

What is the Noble gas notation for Ga?

[Ar] 3d¹⁰4s²4p

300

What is the Noble gas notation for As?

[Ar]3d¹⁰4s²4p³

400

What is the Noble gas notation for Zr?

[Kr]4d²5s²

500

What is the Noble gas notation for Sb?

[Kr] 4d¹⁰5s²5p³

SigFigs

100

How many significant figures are there in 9.000?

4

200

How many significant numbers are in the number 23.02?

4

300

Write 0.000 895 657 1 as 1 significant number.

0.0008

400

Write 4 189.657 456 as 2 significant numbers.

4100

500

Round off 0.0012485 correct up to 3 significant figures.

0.00125