4.2 Synthesis and Decomposition Reactions

Question 1

synthesis reaction

Answer 1

Two or more simple substances combine to form a
more complex substance

Question 2

When a metal reacts with a non-metal, an ______________ is formed

Answer 2

ionic compound

Question 3

When a non-metal reacts with a non-metal, a
_____________ is formed

Answer 3

molecular compound

Question 4

decomposition reaction

Answer 4

Breakdown of larger, more complex molecules or
ionic compounds into smaller, simpler entities

Question 5

Case #1: Binary compound decomposes into its
_______

Answer 5

elements

Question 6

2KCl 🡪

Answer 6

2K(s) + Cl2(g)

Question 7

Case 2: Metal nitrate decomposes into a ________________________

Answer 7

metal nitrite and oxygen gas

Question 8

2NaNO3(s) 🡪

Answer 8

2NaNO2(s) + O2(g)

Question 9

Case 3: metal carbonate decomposes into a ________________________

Answer 9

metal oxide and carbon dioxide

Question 10

CaCO3(s) 🡪

Answer 10

CaO(s) + CO2(g)

Question 11

Case 4: A metal hydroxide decomposes into a ____________________

Answer 11

metal oxide and water

Question 12

Ca(OH)2(s) 🡪

Answer 12

CaO(s) + H2O(g)

Question 13

case 5: a metal chlorate decomposes into a ___________________

Answer 13

metal chloride and oxygen

Question 14

case 6: acids decompose into _________________

Answer 14

water and one less oxygen in polyatomic ion