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Unit 7 (A) Lesson 1 Review

Last updated about 5 hours ago

5 questions

1 point

1

Question 1

1.

Calcium carbonate decomposes into calcium oxide and carbon dioxide.

Calcium oxides react to form calcium carbonate.

Calcium and oxygen mix to produce calcium carbonate.

Calcium forms carbonate when heated.

1 point

1

Question 2

2.

Fluorine reacts with itself to produce hydrogen.

Hydrogen decomposes into hydrogen fluoride.

Hydrogen combines with fluorine to form hydrogen fluoride.

Hydrogen atoms form a bond with oxygen.

1 point

1

Question 3

3.

1 point

1

Question 4

4.

Required

1 point

1

Question 5

5.