Unit 1-2 review

Conversions + sig figs

100

Convert 1.11 meters to cm
(1 m = 100 cm)

111 cm

200

Add with the appropriate sig figs:

10.8 + 3 - 11.47

2

300

Complete the operation with the appropriate sig figs:

2.30 x 10^2 / 18.0 - 9.9

2.9

400

convert 3.75 cal to kJ

0.0157 kJ or 1.57 x 10^-2

500

Convert 14.2F⁰ to K


C = (F - 32) x 5/9

263.26 K

Naming

100

What is the name of KI?

Potassium Iodide

200

What is the formula for Copper (II) Chloride?

CuCl₂

300

Write the formula for Ammonium Dichromate

(NH₄)₂Cr₂O₇

400

What is the name of the following compound?

H₂SO₃

Sulfurous Acid

500

What are the names of the following Acids?

1. HF

2. HCl

3. HBr

4. HI

1. Hydrofluoric Acid

2. Hydrochloric Acid

3. Hydrobromic Acid

4. Hydroiodic Acid

Atom Categorizing/more naming

100

What element (name and symbol) is in period 3, group 15? 

Phosphorous (P)

200

Write the _Z^AX formula for the following atom: Al-27

₁₃²⁷Al

300

Write the name for SF₆

Sulfur Hexafluoride

400

Categorize the following as ionic, acid, or covalent

1. NH₄Cl

2. H₂SO₄

3. NCl₃

1. Ionic

2. Acid

3. Covalent

500

Write the name of the following three compounds:

1. N₂O₄

2. XeF₆

3. NaClO

1. Dinitrogen Tetroxide

2. Xenon Hexafluoride

3. Sodium Hypochlorite

Miscellaneous (concepts)

100

Which is the only polyatomic ion with a positive charge? (name and formula)

Ammonium (NH₄⁺)

200

What are the symbols for the following elements:

Sn

Fe

Pb

1. Tin

2. Iron

3. Lead

300

Classify the following as physical or chemical changes:

1. Rust

2. Ice melting

3. A match burning

1. Chemical

2. Physical

3. Chemical

400

Classify the following as either a homogenous mixture, heterogenous mixture, element, or compound

1. Steel

2. Salad

3. Salt

4. Sodium metal

1. Homogenous mixture

2. Heterogeneous mixture 

3. Compound

4. Element

500

What are the special names and charges for the following groups:

1. Group 1

2. Group 2

3. Group 17

4. Group 18

1. Alkali metals (+1)

2. Alkaline Earth metals (+2)

3. Halogens (-1)

4. Noble gases (0)

Miscellaneous (math)

100

How many sig figs do the following numbers have?

1.07

3.1 x 10^7

0.060

3

2

2

200

Find the density (with units) of an object weighing 21g with a volume of 6.4 cm³

3.3 g/cm³

300

Name the prefixes for 1-10

Eg. 1 = mono

Mono = 1, Di = 2, Tri = 3, Tetra = 4, Penta = 5, Hexa = 6, Hepta = 7, Octa = 8, Nona = 9, Deca = 10

400

Isolate for v in the following equation:

KE = 1/2mv²

v = sqrt(2KE/M)

500

Find the molecular weight of the following:

P³⁰ = 71.2 % abundance

P³¹= 18.7 % abundance

P³² = 10.1 % abundance

30.4 amu