Teas 7 Chemistry Exam with complete
solutions
Solid to Liquid - Correct Answers -Melting (absorbs energy)
Liquid to Solid - Correct Answers -Freezing, (releases energy)
Liquid to Gas - Correct Answers -vaporization/absorbs energy
Gast to Liquid - Correct Answers -condensation/ release energy
Gas to Solid - Correct Answers -deposition/ release energy
Solid to Gas - Correct Answers -sublimation
Matter - Correct Answers -Anything that takes up space
Covalent bonds - Correct Answers -are in many biological compounds, including lipids
and carbohydrates.
Ionic bounds are found in what elements? - Correct Answers -Ionic bonds form only
between metals and nonmetals. That's because metals "want" to give up electrons, and
nonmetals "want" to gain electrons.
(found in salts)
Hydrogen bounds are found in what elements? - Correct Answers -Hydrogen bonding
occurs only in molecules where hydrogen is covalently bonded to one of three
elements: fluorine, oxygen, or nitrogen
A graduated cylinder is used to measure; - Correct Answers -Large amounts of volume
Measuring spoons are used to measure; - Correct Answers -Small amounts of liquid
Mass - Correct Answers -the amount of matter in an object
How Does Matter Change? - Correct Answers -Matter usually changes state when you
add or take away heat, which changes the temperature of the matter
, Substance - Correct Answers -A single kind of matter that is pure and has a specific set
of properties.
examples of substances - Correct Answers -1. Water
2. Alcohol
3. Oil
4. Food coloring
Solids - Correct Answers -The particles in solids are tightly packed
Liquids - Correct Answers -Liquids are also a condensed phase, however, in contrast to
solids, the particles have some translational kinetic energy, which means they have
freedom to move
gas phase - Correct Answers -the phase of matter in which atoms or molecules can
move essentially independently of one another
Which state(s) of matter take the shape of their container? - Correct Answers -Liquids
and gases take the shape of their containers since, they do not have definite shape and
volume. Only solids have definite shape and volume.
SOLIDS - Correct Answers -have the least volume
LIQUIDS - Correct Answers -have a definite volume
GASES - Correct Answers -have maximum volume
Which of the following is correct?
(a) Solids have a definite shape and definite volume.
(b) Liquids have a definite volume but no definite shape.
(c) Gases have a definite volume but no definite shape.
(d) Liquids have both definite shape and definite volume. - Correct Answers -(a) Solids
have definite shape and definite volume.
(b) Liquids have definite volume but no definite shape.
Which state of matter has atoms that move freely? - Correct Answers -Gas
Which state of matter has atoms that can slide past each other? - Correct Answers -
Liquid
Which state of matter has atoms that vibrate in place? - Correct Answers -Solid
Solute - Correct Answers -A substance that is dissolved in a solution.
Solvent - Correct Answers -the substance in which the solute dissolves
solutions
Solid to Liquid - Correct Answers -Melting (absorbs energy)
Liquid to Solid - Correct Answers -Freezing, (releases energy)
Liquid to Gas - Correct Answers -vaporization/absorbs energy
Gast to Liquid - Correct Answers -condensation/ release energy
Gas to Solid - Correct Answers -deposition/ release energy
Solid to Gas - Correct Answers -sublimation
Matter - Correct Answers -Anything that takes up space
Covalent bonds - Correct Answers -are in many biological compounds, including lipids
and carbohydrates.
Ionic bounds are found in what elements? - Correct Answers -Ionic bonds form only
between metals and nonmetals. That's because metals "want" to give up electrons, and
nonmetals "want" to gain electrons.
(found in salts)
Hydrogen bounds are found in what elements? - Correct Answers -Hydrogen bonding
occurs only in molecules where hydrogen is covalently bonded to one of three
elements: fluorine, oxygen, or nitrogen
A graduated cylinder is used to measure; - Correct Answers -Large amounts of volume
Measuring spoons are used to measure; - Correct Answers -Small amounts of liquid
Mass - Correct Answers -the amount of matter in an object
How Does Matter Change? - Correct Answers -Matter usually changes state when you
add or take away heat, which changes the temperature of the matter
, Substance - Correct Answers -A single kind of matter that is pure and has a specific set
of properties.
examples of substances - Correct Answers -1. Water
2. Alcohol
3. Oil
4. Food coloring
Solids - Correct Answers -The particles in solids are tightly packed
Liquids - Correct Answers -Liquids are also a condensed phase, however, in contrast to
solids, the particles have some translational kinetic energy, which means they have
freedom to move
gas phase - Correct Answers -the phase of matter in which atoms or molecules can
move essentially independently of one another
Which state(s) of matter take the shape of their container? - Correct Answers -Liquids
and gases take the shape of their containers since, they do not have definite shape and
volume. Only solids have definite shape and volume.
SOLIDS - Correct Answers -have the least volume
LIQUIDS - Correct Answers -have a definite volume
GASES - Correct Answers -have maximum volume
Which of the following is correct?
(a) Solids have a definite shape and definite volume.
(b) Liquids have a definite volume but no definite shape.
(c) Gases have a definite volume but no definite shape.
(d) Liquids have both definite shape and definite volume. - Correct Answers -(a) Solids
have definite shape and definite volume.
(b) Liquids have definite volume but no definite shape.
Which state of matter has atoms that move freely? - Correct Answers -Gas
Which state of matter has atoms that can slide past each other? - Correct Answers -
Liquid
Which state of matter has atoms that vibrate in place? - Correct Answers -Solid
Solute - Correct Answers -A substance that is dissolved in a solution.
Solvent - Correct Answers -the substance in which the solute dissolves
