Phase Changes Review Question Preview (ID: 60974)


Phase Changes And States Of Matter. TEACHERS: click here for quick copy question ID numbers.

A(n) ______ is the name given when atoms (whether identical or different) are joined together by chemical bonds.
a) element
b) molecule
c) compound
d) mixture

A(n) _______ is when multiple atoms or molecules of the same type are joined together.
a) element
b) molecule
c) compound
d) mixture

A(n) _________ is a physical combination of two or more different substances.
a) element
b) molecule
c) compound
d) mixture

A substance has molecules that are loosely bound, allowing them to flow freely around each other. The substance will take the shape of its container. This substance must be a —
a) solid
b) liquid
c) gas
d) plasma

Imagine that a substance's molecules are able to move around freely. Which of these conclusions about the unknown substance is best supported by these data?
a) It is a metal
b) It will sink in water
c) It is a crystal
d) It is a gas

Two full 0.5 L bottles of water are placed on a table. Bottle 1 was just removed from the refrigerator and Bottle 2 is at room temperature. Which of the following best describes the speed of the molecules in each bottle?
a) The molecules in Bottle 1 are moving faster than the molecules in Bottle 2.
b) The molecules in Bottle 2 are moving faster than the molecules in Bottle 1.
c) The molecules in both bottles have the same speed.
d) The molecules in Bottle 1 are not moving.

A scientist obtains a microscopic view of a certain substance. She finds evidence of the molecules in a regular pattern that is rigid, the particles cannot slide past one another. She must be observing which state of matter?
a) Solid
b) Liquid
c) Gas
d) Plasma

Imagine a liquid being transferred between multiple containers, which of the following statements best describes what is happening to the liquid?
a) That liquids are not easily compressible.
b) That there is little free space between particles.
c) That the particles can slide past one another.
d) That the liquid takes the shape of the container.

Which of the following is not a property of particles in a gas?
a) The particles move about freely at high speeds.
b) The particles are non-compressible.
c) The particles assume the volume of their container.
d) The particles are well separated with no pattern of arrangement.

Which of the following properties would you expect of a solid?
a) shape determined by its container
b) a fixed shape
c) low melting point
d) compressible

A(n) _______ is only when non-identical atoms join together by chemical bonds
a) element
b) molecule
c) compound
d) mixture

An example of a chemical property is —
a) density
b) mass
c) acidity
d) solubility

What is the density at 15 0 C of 18.0 milliliters of a liquid that has a mass of 53.64 grams?
a) 0.336 g/mL
b) 2.98 g/mL
c) 11.95 g/mL
d) 34.05 g/mL

Which of the following objects will float on water?
a) mass = 70 g volume = 75 cm3
b) mass = 65 g volume = 60 cm3
c) mass = 60 g volume = 55 cm3
d) mass = 55 g volume = 50 cm3

What is the density at 27 °C of 28.0 milliliters of a liquid that has a mass of 4.05 grams?
a) 0.145 g/mL
b) 6.91 g/mL
c) 23.95 g/mL
d) 32.05 g/mL

What is the mass of a 600.00 mL sample of seawater with a density of 1.025 g/mL?
a) 585.4 g
b) 615 g
c) 600 g
d) 725.0 g

Viscosity is a measure of a fluid's internal resistance to flowing. Which of the following situations will cause the liquid's viscosity to increase?
a) increase the temperature
b) decrease the temperature
c) decrease the volume
d) increase the flow

What is the name of process of changing from a solid to a gas?
a) condensation
b) sublimation
c) depositon
d) vaporization

The particles of which state of matter would have the lowest kinetic energy?
a) solid
b) liquid
c) gas
d) all of the above

What is the name of process of changing from a gas to a solid?
a) condensation
b) sublimation
c) depositon
d) vaporization

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