Question 1

Question

What type of energy is moving energy?

a
kinetic
b
potential
c
gravitational
Question 2
Match the state of matter to its description.

Column A
1.
particles are tightly packed and vibrate in place; definite shape and volume:
particles are tightly packed and vibrate in place; definite shape and volume
2.
particles are loosely packed and slide past one another; indefinite shape but definite volume:
particles are loosely packed and slide past one another; indefinite shape but definite volume
3.
particles are far apart and move at fast speeds; indefinite shape and volume:
particles are far apart and move at fast speeds; indefinite shape and volume
Column B
a.solid
b.liquid
c.gas
Question 3
Match the following terms to the correct definition

Column A
1.
law of conservation of energy:
law of conservation of energy
2.
thermal energy:
thermal energy
3.
temperature:
temperature
4.
kinetic energy:
kinetic energy
5.
potential energy:
potential energy
Column B
a.a measure of the average kinetic energy of the particles in an object due to their random motions
b.the energy that an object possesses due to its motion
c.the energy associated with the motion and positions of particles
d.the stored energy an object possess, often due to its position relative to other objects around it
e.a scientific principle that states that energy can neither be created nor destroyed by ordinary chemical or physical means.
Question 4
Solids are a type of matter that are hard and take their own shape. They have a mass, volume, and shape.

Liquids do not have their own shape but they take on the shape of their container. They have a mass and volume, but have an shape.

Gases have an shape and they tend to spread out to fill their container. They have an mass, volume, or shape.

Word Bank:
indefinitedefiniteindefiniteindefinitedefinite
Blank 1:
Blank 2:
Blank 3:
Blank 4:
Blank 5:

Answer 1

Here are the answers to the questions presented:

Question 1 What type of energy is moving energy?

• a. kinetic

Question 2 Match the state of matter to its description.

• 1. a. solid
• 2. b. liquid
• 3. c. gas

Question 3 Match the following terms to the correct definition.

• 1. e. a scientific principle that states that energy can neither be created nor destroyed by ordinary chemical or physical means. (law of conservation of energy)
• 2. c. the energy associated with the motion and positions of particles (thermal energy)
• 3. a. a measure of the average kinetic energy of the particles in an object due to their random motions (temperature)
• 4. b. the energy that an object possesses due to its motion (kinetic energy)
• 5. d. the stored energy an object possesses, often due to its position relative to other objects around it (potential energy)

Question 4 Solids are a type of matter that are hard and take their own shape. They have a definite mass, volume, and shape.

Liquids do not have their own shape but they take on the shape of their container. They have a definite mass and volume, but have an indefinite shape.

Gases have an indefinite shape and they tend to spread out to fill their container. They have an indefinite mass, volume, or shape.

• Blank 1: definite
• Blank 2: definite
• Blank 3: indefinite
• Blank 4: indefinite
• Blank 5: indefinite

Answer 2

Question 10
Which of the following is a characteristic of an acid?

a
donates protons
b
accepts protons
c
feels slippery
d
tastes sour
Question 11
Which of the following is a characteristic of a base?

a
feels slippery
b
accepts protons
c
donates protons
d
tastes sour
Question 12
A solution with a pH of 9 would be acidic

True
False
Question 13
A substance with a pH of less than 7 is a base.

True
False

Answer 3

Here are the answers to your questions:

Question 10
Which of the following is a characteristic of an acid?

• a. donates protons
• (Also acceptable: d. tastes sour, but the most direct characteristic is donating protons.)

Question 11
Which of the following is a characteristic of a base?

• a. feels slippery
• (Also acceptable: b. accepts protons, but the most common characteristic associated with bases is that they feel slippery.)

Question 12
A solution with a pH of 9 would be acidic

• False
  (It's actually basic, as pH values above 7 indicate a basic solution.)

Question 13
A substance with a pH of less than 7 is a base.

• False
  (A substance with a pH of less than 7 is considered acidic.)

Answer 4

Question 14
In a solution of salt water, the salt is the:

a
solution
b
solvent
c
solute
d
acid
Question 15
When a solution has the maximum amount of solute dissolved, it is said to be saturated.

True
False
Question 16
When a solution has more than the maximum amount of solute dissolved, then it is said to be:

a
unsaturated
b
supersaturated
c
megasaturated
d
saturated
Question 17
In a solution of salt water, the water is the:

a
solution
b
solvent
c
solute
Question 18
Use the solubility curve to answer the following question:

A solution of 40 grams of KCl at 50 degrees Celsius is ________________.

LdZ2muX2SNaXsOuZSuJ7_Screen_Shot_2014-10-14_at_12.31.04_AM_63169eafc5c9e.png

a
supersaturated
b
unsaturated
c
saturated
Question 19
Which of the following will increase the solubility of a solute? (Select all that apply)

a
decreasing the surface area of the solute
b
cooling the solution
c
stirring the solution
d
heating the solution
e
increasing the surface area of the solute

Answer 5

Here are the answers to your questions:

Question 14
In a solution of salt water, the salt is the:

• c. solute

Question 15
When a solution has the maximum amount of solute dissolved, it is said to be saturated.

• True

Question 16
When a solution has more than the maximum amount of solute dissolved, then it is said to be:

• b. supersaturated

Question 17
In a solution of salt water, the water is the:

• b. solvent

Question 18
A solution of 40 grams of KCl at 50 degrees Celsius is ________________.

• Based on a typical solubility curve for KCl, at approximately 50 degrees Celsius, the solubility limit is around 40 grams (actual values can vary slightly based on the source). Thus, if 40 grams is the maximum solubility:
• c. saturated

Question 19
Which of the following will increase the solubility of a solute? (Select all that apply)

• c. stirring the solution
• d. heating the solution
• e. increasing the surface area of the solute

Note: Decreasing the surface area of the solute and cooling the solution would typically decrease the solubility of a solute.