Chemistry Test Review (3/21)

Naming Compounds

100

What is the name of CaCl?

Calcium Chloride

200

What is the name for OF₂?

Oxygen difluoride

300

What is the compound: tetraphosphorous hexoxide?

P₄O₆

400

What is the name of AlF₃?

Aluminum Fluoride

500

What is the name for FeCl₂?

Iron (II) Chloride

Definitions

100

What is a cation?

positively charged ions

200

What is an anion?

negatively charged ion

300

What is a coefficient?

The number in front of a chemical formula, it helps balance equations

400

What is Avogadro's number? What is the number itself, and what is it used for(converts what to what)?

6.022 x 10²³

It converts moles to atoms

500

Name all 10 prefixes used in naming covalent compounds.

1- mono

2- di

3- tri

4- tetra

5- penta

6- hexa

7-hecta

8-octa

9-nona

10- deca

Oxidation Numbers

100

What is the oxidation number of O₂ ?

0

200

What is the oxidation number of H₂O?

H: +1

O: -2

300

What is the oxidation numbers of KMnO₄?

K: +1

Mn: +7

O: -2

400

What is the oxidation number of S₂O₃^-2?

S: +2

O: -2

500

What is the oxidation numbers of ClO₃^-1?

Cl: +5

O: -2

Types of Chemical Equations

100

Name the type of reaction:

2 CO + O₂ → 2CO₂

Synthesis and/or Combustion

200

Name the type of reaction:

 8 Fe + S₈ → 8 FeS.

Synthesis 

300

Name the type of reaction:

2K + 2H₂O → 2KOH + H

Single replacement 

400

Name the type of reaction:

AB → A + B

decomposition

500

Name the type of reaction:

AgNO₃ + NaCl → AgCl + NaNO₃

Double replacement 

Chemical Calculations

100

Grams to moles: .500 grams of Carbon

.04 moles C

200

Moles to grams: 7 moles Oxygen

112 grams Oxygen

300

Compounds to moles: 500mg CaCO₃

5 x 10^-3 mol CaCO₃

400

What is the percent composition of Hydrogen in H₂O?

And Oxygen?

H- 11.1%

O- 88.9%

500

P₄ + 5O₂ -> 2 P₂O₅

How many moles of O₂ do I need to produce 25 moles of P₂O_5?

62.5 mol O₂