Unit 7 Review

Synthesis

100

Finish the reaction: 

A + B -->

AB

200

Predict the products in words for: 

magnesium + chlorine -->

magnesium chloride 

300

Predict the products as a formula:

Mg + P -->

Mg₃P₂

400

Predict the formula products, and write a complete balanced formula reaction: 

iron (III) + oxygen --> 

4Fe + 3O₂ --> 2Fe₂O₃

500

Predict the products in words, and write a complete balanced chemical reaction:

nitrogen + hydrogen -->

nitrogen + hydrogen --> ammonia

N₂ + 3H₂ --> 2NH₃

Decomposition

100

Finish the reaction: 

AB -->

A + B

200

Predict the products in words for: 

barium fluoride -->

barium + fluorine 

300

Predict the products as a formula: 

AlI₃ --> 

Al + I₂

400

Predict the formula products, and write a complete balanced formula reaction: 

Ga(ClO₃)₃ -->

2Ga(ClO₃)₃ --> 2GaCl₃ + 9O₂

500

Predict the products in words, and write a complete balanced chemical reaction: 

beryllium hydroxide -->

beryllium hydroxide --> beryllium oxide + water

Be(OH)₂ --> BeO + H₂O 

Single Replacement

100

Finish the reaction: 

A + BC -->

B + AC

200

Predict the products in words for: 

magnesium bromide + sodium -->

sodium bromide + magnesium 

300

Determine if the following reaction can occur: 

gallium chloride + strontium --> 

yes

400

Predict the products in words, and write a complete balanced chemical reaction:

cesium + water -->

cesium + water --> cesium hydroxide + hydrogen 

2Cs + 2H₂O --> 2CsOH + H₂

500

Complete the formula reaction and balance. Determine if the reaction can happen in real life. 

I₂ + AlF₃ -->

3I₂ + 2AlF₃ --> 2AlI₃ + 3F₂

Cannot actually occur. 

Double Replacement

100

Finish the reaction: 

AB + CD -->

AD + CB 

200

Predict the products in words for: 

potassium oxalate + zinc chlorite -->

potassium chlorite + zinc oxalate 

300

Predict the products as a formula:

(NH₄)₂S + Zn₃(PO₃)₂ -->

ZnS + (NH₄)₃PO₃

400

Predict the formula products, and write a complete balanced formula reaction: 

hydrobromic acid + calcium hydroxide --> 

2HBr + Ca(OH)₂ --> 2H₂O + CaBr₂

500

Predict the products in words, and write a complete balanced chemical reaction:

radium hydroxide + nitrous acid --> 

--> water + radium nitrite

Ra(OH)₂ + 2HNO₂ --> Ra(NO₂)₂ + 2H₂O

Combustion

100

Finish the reaction: 

C_xH_y + O₂ -->

H₂O + CO₂

200

Predict the products in words for: 

hexane + oxygen -->

water + carbon dioxide 

300

Predict the formula products, and balance the chemical reaction:

C₇H₁₆ + O₂ --> 

C₇H₁₆ + 11O₂ --> 8H₂O + 7CO₂

400

Predict the formula products, and balance the chemical reaction:

C₁₀H₂₂ + O₂ --> 

2C₁₀H₂₂ + 31O₂ → 20CO₂ + 22H₂O

500

Predict the products, and balance the chemical reaction:

alanine (C₃H₇NO₂) + oxygen --> 

alanine + oxygen --> 

water + carbon dioxide + nitrogen

4C₃H₇NO₂ + 15O₂ → 12CO₂ + 14H₂O + 2N₂