Environmental Chemistry

Question 1

What is liming?

Answer 1

A soil treatment that neutralizes excessive acidity

Question 2

What is bioremediation?

Answer 2

Use of microorganisms to consume and break down pollutants

Question 3

A solute _______
A solvent ______

Answer 3

Gets dissolved in a solvent
Dissolves a solute

Question 4

What bonds do organic matter have?

Answer 4

Carbon-hydrogen bonds
Often carbon-oxygen or nitrogen too

Question 5

How does the body use protein?
(2 examples)

Answer 5

Build/repair muscles
To make enzymes and hormones

Question 6

How does the body use lipids?
(3 examples)

Answer 6

For cell membranes
Storing energy
Absorbing vitamins

Question 7

What 3 elements are in fertilizer?

Answer 7

Nitrogen, phosphorus and potassium

Question 8

How does fertilizer affect water quality?

Answer 8

Overproduces algae and microorganisms, which reduce dissolved oxygen levels

Question 9

How does fertilizer affect air quality?

Answer 9

Releases nitrates contributing to global warming

Question 10

Acids are _______ (colour)

Answer 10

Red

Question 11

Bases are _____ (colour)

Answer 11

Blue

Question 12

Acids taste _____ and bases taste _____

Answer 12

Sour, bitter

Question 13

Acute toxicity is _______

Chronic toxicity is ______

Answer 13

Adverse effects from a single dose

Adverse effects from long term exposure

Question 14

Acids are _____ pH

Neutral pH is _______

Bases are _____ pH

Answer 14

1–7

7

7-14

Question 15

What is the main cause of greenhouse gases (nitrates, sulphates, methane, carbon dioxide)?

Answer 15

Burning fossil fuels !!!!