Here are the answers to your questions:
Question 1
What type of energy is moving energy?
b. kinetic
Question 2
Match the state of matter to its description.
- b. solid
- a. Liquid
- c. gas
Question 3
Match the following terms to the correct definition
- c. a scientific principle that states that energy can neither be created nor destroyed by ordinary chemical or physical means.
- a. a measure of the average kinetic energy of the particles in an object due to their random motions
- d. the stored energy an object possesses, often due to its position relative to other objects around it
- e. the energy that an object possesses due to its motion
- b. the energy associated with the motion and positions of particles
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
Question 5
What is pressure in relation to a gas?
c. the force the gas is exerting on its container
Question 6
When referring to a gas, the higher the temperature, the faster the particles move
True
Question 7
Volume refers to
a. the size of the gas
Question 8
If the pressure of a gas goes up, the volume has to go down
True
Question 9
Match the following terms to the correct definition
- i. compounds with a positive or negative (polar) charge
- b. compounds with molecules that do not have a polar charge
- h. a substance that is dissolved in a solvent
- d. a mixture made up of a solvent and a solute
- g. a substance that dissolves another substance
- e. a substance that releases H+ ions into a solution
- a. a substance that causes the release of OH- ions into a solution
- f. an atom or molecule that is charged due to a gain or loss in electrons
- c. a scale with values from 0-14 that indicates how acidic or basic a solution is
Question 10
Which of the following is a characteristic of an acid?
b. donates protons
c. tastes sour
Question 11
Which of the following is a characteristic of a base?
a. feels slippery
Question 12
A solution with a pH of 9 would be acidic
False
Question 13
A substance with a pH of less than 7 is a base.
False
Question 14
In a solution of salt water, the salt is the:
b. 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:
d. supersaturated
Question 17
In a solution of salt water, the water is the:
a. solvent
Question 18
A solution of 40 grams of KCl at 50 degrees Celsius is ________________.
b. saturated (assuming the solubility curve indicates that 40g is the maximum at that temperature)
Question 19
Which of the following will increase the solubility of a solute? (Select all that apply)
a. heating the solution
c. increasing the surface area of the solute
e. stirring the solution
Feel free to ask if you need further explanations or assistance!