JeopardyAtoms Endo vs Expo

Properties Chapter 2 TestPotpourri

Q $100

Q $200

Q $300

Q $400

Q $500

Q $100 Q $100Q $100 Q $100

Q $200 Q $200 Q $200 Q $200

Q $300 Q $300 Q $300 Q $300

Q $400 Q $400 Q $400 Q $400

Q $500 Q $500 Q $500 Q $500

Final Jeopardy

$100 Question from H1

$100 Answer from H1

A. Carbon

$200 Question from H1

$200 Answer from H1

• C. 14 electrons

$300 Question from H1

$300 Answer from H1

$400 Question from H1

$400 Answer from H1

A. 150 grams

$500 Question from H1

$500 Answer from H1

D. No, Neon has 8 electrons in its outershell and is stable.

$100 Question from H2

• An Endothermic reactions feels?

$100 Answer from H2

cold

$200 Question from H2

• When you mix vinegar with baking soda the bottle feels cold during the reaction. What kind of reaction is this?

$200 Answer from H2

Endothermic reaction

$300 Question from H2

• A burning piece of paper is what type of reaction?

$300 Answer from H2

exothermic

$400 Question from H2

Plant growers often use sprinkler irrigation to protect crops they are growing from frost damage. The water that lands on the leaves turns to ice. How does this protect the plants from frost damage?

$400 Answer from H2

• When liquid water turns to ice on plant leaves, it gives off thermal energy that warms the leaves.

$500 Question from H2

• Compare and Contrast Exothermic Reactions and Endothermic reactions.

$500 Answer from H2

Both reactions deal with energy. Exo – energy is given off. Endo – energy is taken in.

$100 Question from H3

• What is the density of water?

$100 Answer from H3

1

$200 Question from H3

$200 Answer from H3

C. 3

$300 Question from H3

• Polar molecules such as water have

• a. no negative or positive poles.

• b. both negative and positive poles.

• c. only a negative pole.

• d. only a positive pole.

$300 Answer from H3

• b. both negative and positive poles.

$400 Question from H3

$400 Answer from H3

A. Beaker W

$500 Question from H3

• A molecule that has a partial positive charge on one side and a partial negative charge on the other side is called a

• a. nonpolar molecule. c. charged molecule.

• b. polar molecule. d. bipolar molecule.

$500 Answer from H3

• b. polar molecule.

$100 Question from H4

Your Text Here

• Water molecules break up other polar substances

• a. such as salts.• b. because of the uneven charge

distribution that exists in water molecules.• c. thus freeing ions in these substances

for use by the body.• d. All of the above

$100 Answer from H4

D. All of the above

$200 Question from H4

• Which of the following characteristics of water is not a result of hydrogen bonding?

• a. adhesive strength

• b. capillarity

• c. cohesive strength

• d. All of the above are a result of hydrogen bonding.

$200 Answer from H4

d. All of the above are a result of hydrogen bonding.

$300 Question from H4• Buffers• a. are of relatively little importance in

living things.• b. are formed when a large number of

hydroxide ions are released in a solution.• c. are formed when a large number of

hydronium ions are released in a solution.• d. tend to prevent great fluctuations in pH.

$300 Answer from H4

d. tend to prevent great fluctuations in pH.

$400 Question from H4• The terms base and alkaline refer to

solutions that

• a. contain dissolved sodium hydroxide.

• b. contain more hydronium ions than hydroxide ions.

• c. contain more hydroxide ions than hydronium ions.

• d. contain more hydroxide ions than hydrogen ions.

$400 Answer from H4

c. contain more hydroxide ions than hydronium ions.

$500 Question from H4

• Oxidation-reduction reactions are important in organisms because they

• a. allow the passage of energy from molecule to molecule.

• b. prevent nuclear reactions from occurring.• c. allow the creation and destruction of energy.• d. None of the above; oxidation-reduction

reactions do not occur in living organisms.

$500 Answer from H4

a. allow the passage of energy from molecule to molecule.

$100 Question from H5

• Acidic solutions have a pH that is

• a. less than 7.c. a negative number.

• b. between 0 and 14. d. more than 7.

$100 Answer from H5

• A. less than 7

$200 Question from H5

• Chemical reactions in the body can be speeded up by adding a(n) ____________________, which lowers the amount of activation energy required to start the reaction.

$200 Answer from H5

enzyme

$300 Question from H5

• The loss of electrons from a molecule is called ____________________.

$300 Answer from H5

oxidation

$400 Question from H5

• The gain of electrons by a molecule is called ____________________.

$400 Answer from H5

reduction

$500 Question from H5

• A substance that dissolves in another is called a(n) ____________________.

$500 Answer from H5

solute

Final Jeopardy

• Define enzyme, and describe how an enzyme can function in speeding up a chemical reaction within a cell. Write your answer in the space below. 2 points

Final Jeopardy AnswerDefine DESCRIBE

Biological catalysts Lower activation energy which speeds up the reaction