SCIENCE PERIODICAL 3

Question 1

In Boyle’s law if the pressure is lowered what happens to the volume?

Answer 1

The volume increases

Question 2

If a gas has an initial pressure of 4.20 atm and an initial volume of 2.26 L, and its pressure drops to 1.23 atm, what is the new volume of the gas?

Answer 2

Boyle’s Law
7.72 L

Question 3

If a gas has an initial pressure of 2.76 atm and an initial volume of 8.00 L, and its volume increases to 9.82L, what is the new pressure of the gas

Answer 3

Boyle’s Law
2.25 atm

Question 4

What law states that gas and volume are proportional to eachother (if gas increases then volume also increases)

Answer 4

Charles Law

Question 5

A 600.0 mL sample of nitrogen is warmed from 77.0 °C to 86.0 °C. Find its new volume.

Answer 5

Charles Law
359.0 K

Question 6

In Gay-Lussac’s Law what would happen to the temperature if the pressure decreases

Answer 6

The pressure also decreases

Question 7

Determine the pressure change when a constant volume of gas at 1.00 atm is heated from 20.0 °C to 30.0 °C.

Answer 7

Gay Lussac
1.03 atm

Question 8

A gas has a volume of 800.0 mL at −23.0 °C and 300.0 torr. What would the volume of the gas be at 227.0 °C and 600.0 torr of pressure?

Answer 8

Combined Gas Law
800.0 mL

Question 9

500.0 liters of a gas in a flexible-walled container are prepared at 700.0 mmHg and 200.0 °C. The gas is placed into a tank under high pressure. When the tank cools to 20.0 °C, the pressure of the gas is 30.0 atm. What is the volume of the gas?

Answer 9

Combined Gas Law
9.51 L

Question 10

Following Avogadro’s Law, do the amount of molecules increase or decrease if the volume is lowered

Answer 10

Decrease

Question 11

5.00 L of a gas is known to contain 0.965 mol. If the amount of gas is increased to 1.80 mol, what new volume will result (at an unchanged temperature and pressure)?

Answer 11

Avogadro’s Law
9.33 L

Question 12

A sample of gas at 25.0 °C has a volume of 11.0 L and exerts a pressure of 660.0 mmHg. How many moles of gas are in the sample?

Answer 12

Ideal Gas Law
0.391 mol

Question 13

Glucose, Fructose, and Galactose are part of what classification of Carbohydrates

Answer 13

Monosaccharides

Question 14

What sugars are classified as disaccarides

Answer 14

Sucrose, Lactose, and Maltose

Question 15

What is the most abundant class of organic compounds in organisms

Answer 15

Carbohydrates

Question 16

What sugars are classified as polysaccharides

Answer 16

Starch, Glycogen and, Cellulose

Question 17

Simple sugars, basic unit of a carbohydrate

Answer 17

Monosaccharides

Question 18

Lipids are found it what foods

Answer 18

Dairy, poultry, grain, meats, baked goods, and oils

Question 19

Most abundant class of lipids

Answer 19

Triglyceride

Question 20

Fats and Oils belong to what class of lipids

Answer 20

Triglyceride

Question 21

What classification of lipids forms structural components in the cell membrane

Answer 21

Phospholipids

Question 22

Lipid which has a backbone structure consisting of four fused carbon rings

Answer 22

Steroids

Question 23

Lipid which reduces swelling or redness in the body

Answer 23

Steroids

Question 24

Lipid which consists of a long chain of fatty acids and monohydroxy alcohol

Answer 24

Waxes

Question 25

Type of Biomolecule composed of long chains of amino acids

Answer 25

Proteins

Question 26

What are the two types of proteins

Answer 26

globular and fibrous

Question 27

Biomolecule that comprises skin, bones, hair, and nails. Collagen and Keratin

Answer 27

Protein

Question 28

What Biomolecule store substances for future use in the body

Answer 28

Proteins

Question 29

Biomolecule that’s used for animals structural functions (chitin)

Answer 29

Carbohydrates

Question 30

A process wherein atoms of substances rearrange, and break to form new substances

Answer 30

Chemical reactions

Question 31

What are the 4 types of chemical reactions

Answer 31

Combination
Decomposition
Single Replacement
Double Replacement