Chemistry Review

Concept

100

What is an attractive force that holds atoms of elements when they combine to produce a compound?

chemical bond

200

What is a bond between negative electrons and a positive ion?

ionic

 bond

300

Which group in the periodic table will gain 4 electron?

Group 4

400

Is O₂ a polar covalent or non polar covalent bond?

Non polar

500

Which type of following type of chemical reactions results in a single product?

Synthesis Reaction

Predicting Products

100

Sodium combines with chlorine to produce sodium chloride.

Na + Cl₂ → NaCl

200

Sodium carbonate decomposes to produce sodium oxide and carbon dioxide

Na₂CO₃ → Na₂O + CO₂ 

300

What happens when Mg reacts with HCl?

Mg + HCl --> MgCl₂ + H₂

400

Carbon dioxide gas reacts with solid lithium hydroxide to produce solid lithium carbonate and water.

CO₂ +  LiOH → Li₂CO₃ + H₂O

500

Predict the products of Pb(NO₃)₂ + KI

Pb(NO₃)₂ + KI --> PbI₂ + KNO₃

Naming Compounds

100

Name: NaCl

Sodium chloride

200

Name: N₂O₅

Dinitrogen pentoxide

300

Name: Ba₃(PO₄)₂

Barium Phosphate

400

Name: FeCl₃

Iron (III) chloride

500

Name:P₂O₅ 

Diphosphorus pentoxide

Writing Formulas

100

What is the formula for carbon dioxide?

CO₂

200

Write the formula for barium sulfide

BaS

300

Write the formula for ammonium sulfate.

(NH₄)₂SO₄

400

Write the formula for aluminum nitrate.

Al(NO₃)₃

500

Write the formula for iron (III) phosphate.

FePO₄

Balancing Equations

100

H₂ + O₂ → H₂O

2H₂ + O₂ → 2H₂O

200

Fe + O₂ → Fe₂O₃

4Fe + 3O₂ → 2Fe₂O₃

300

C₅H₁₂ + O₂ → CO₂ + H₂O

C₅H₁₂ + 8O₂ → 5CO₂ + 6H₂O

400

(NH₄)₂Cr₂O₇ → Cr₂O₃ + H₂O + N₂

(NH₄)₂Cr₂O₇ → Cr₂O₃ + 4H₂O + N₂

500

C₆H₁₂O₆ + O₂ → CO₂ + H₂O 

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O