More Chemical Reactions

Question 1

What are the impacts of nitrogen dioxide?

Answer 1

Nitrogen Dioxide can cause lung problems and cause acid rain

Question 2

What can you do to reduce the amount of NO2 in the air?

Answer 2

You can use the car less or open windows when a stove is burning

Question 3

What symbols do you use for “=” in a word equation

Answer 3

You use an arrow instead (–>)

Question 4

What’s an example of a precipitation reaction?

Answer 4

Lead nitrate + Potassium Oxide –> Lead Iodide + Potassium Nitrate

Question 5

What’s an example of a combustion reaction?

Answer 5

Magnesium + Oxygen –> Magnesium Oxide

Question 6

What’s an example of a corrosion reaction?

Answer 6

Iron + Oxygen + Water –> Hydrated Iron Oxide

Question 7

What’s an example of an acid reaction?

Answer 7

Calcium Carbonate + Nitric acid –> Calium Nitrate + Carbon Dioxide + Water

Question 8

What does endo mean?

Answer 8

Inside

Question 9

What is the formula for calorie count in food?

Answer 9

m x c = ΔT

Question 10

What does m and c stand for in calorie formula?

Answer 10

m= mass of water c= 4.2J/g

Question 11

ΔT stands for?

calorie formula

Answer 11

Temperature change of water

Question 12

What is the product of most metals reactions?

Answer 12

(metal) hydroxide/oxide + hydrogen

Question 13

What is diffusion?

Answer 13

It is the spreading out of particles in a liquid or gas.

Question 14

Can a pure substance be an element or a compound?

Answer 14

Yes

Question 15

What is a chromatogram?

Answer 15

It’s a tool used to carry out chromatography and show the results.

different from just chromatography. Rember exam results.