Synthesis and Decomposition Reactions

Question 1

What are the 5 types of reactions?

Answer 1

1. synthesis
2. decomposition
3. single displacement
4. double displacement
5. combustion.

Question 2

What ia a synthesis reactions also called?

Answer 2

a combination reactions

Question 3

what is the genral equation for synthesis reactions?

Answer 3

A+ B → AB

Question 4

What must the product always be in a synthesis. reaction?

Answer 4

a single compound

Question 5

A metal element can combine with a non-metal element to form an…

Answer 5

ionic compound

Question 6

Two non metal elements can combine to form a…

Answer 6

molecular compound

Question 7

What reactants produce acids?

Answer 7

nonmetal oxides and water

Question 8

What reactants produce bases?

Answer 8

metal oxides and water produce hydroxide

Question 9

What is the decomposition reaction general formula?

Answer 9

AB→ A + B

Question 10

Define a decomposition reaction

Answer 10

a reaction where a more complex molecule breaks down to form two or more simpler products

Question 11

In a synthesis reaction, what do two elements form?

Answer 11

a binary compound

Question 12

In a synthesis reaction, what do a metal oxide and carbon dioxide form?

Answer 12

the metal carbonate

Question 13

In a synthesis reaction, what doe a metal chloride and oxygen form?

Answer 13

the metal chlorate

Question 14

In a synthesis reaction, what do a metal oxide and water form?

Answer 14

a metal hydroxide

Question 15

In a synthesis reaction, what do a non-metal oxide and water form?

Answer 15

the oxyacid

Question 16

What is an acidic oxide?

Answer 16

an oxide that forms an acidic solution when dissolved in water

Question 17

Describe the process from car to air for nitrogen oxides

Answer 17

• in car engines, the high temperature causes itrogen to undergo a synthesis reaction iwth oxygen
• nitrogen monoxde is released back into the atmosphere and undergoes further reaction iwth oxygen to form nitrogen dioxide
• nitrogen dioxide is toxic and combines with water droplets in air to form nitric acid and nitrous acid

Question 18

Describe the process of sulfur oxides

Answer 18

• combustion of fossil fuels can produce sulfur dioxide
• once in atmosphere, sulfur dioxide reacts with additional oxygen to produce sulfur trioxide
• sulfur trioxide combines with water in the atmosphere to form sulfuric acid
• forms acid precipitation

Question 19

What are basic oxides?

Answer 19

an oxide that forms a basic solution when dissolved in water - most metallic elements form basic oxides

Question 20

What does a binary compound breakdown into in a decomposition reaction?

Answer 20

its elements

Question 21

What do metal carbonates breakdown into in a decomposition reaction?

Answer 21

the metal oxide and carbon dioxide gas

Question 22

what do chlorates breakdown into in a decomposition reaction?

Answer 22

the metal chloride and oxygen gas

Question 23

what do metal hydroxides breakdown into in a decomposition reaction?

Answer 23

the metal oxide and water

Question 24

what do oxyacid breakdown into in a decomposition reaction?

Answer 24

the non-metal oxide and water

Question 25

what do metal nitrates breakdown into in a decomposition reaction?

Answer 25

the metal nitrite and oxygen gas

Question 26

What does a metal oxide breakdown into in a decomposition reaction?

Answer 26

a metal and oxygen

Question 27

What does a metal hydrate breakdown into in a decomposition reaction?

Answer 27

into an anhydrous compound and water