CHEM 1211 GEORGIA SOUTHERN TEST 1 QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+||BRAND NEW
Matter - (ANSWER)anything that has mass ans takes up space.
Atoms - (ANSWER)building blocks of matter, and they are the smallest form of matter other than
subatomic particles.
Element - (ANSWER)all made up of the same kind of atom for one element.
Molecule - (ANSWER)two or more atoms held together by covalent bonds, in specific shapes.
Compound - (ANSWER)made up of two or more different elements that are combined.
3 forms of matter - (ANSWER)solid, liquid, gas
Gas - (ANSWER)no fixed volume, easy to compress
Liquid - (ANSWER)distinct volume, compressible but not as much as gas
Solid - (ANSWER)fixed shape and volume, not compressible.
Pure substance - (ANSWER)usually referred to as substance, has distinct properties and a composition
that does not vary from sample to sample. 2 types of pure substances: elements, and compounds.
2 forms of pure substance - (ANSWER)Element: a substance that cannot be decomposed to simpler
substances. EX: anything on the periodic table of elements.
Compound: a substance which can be decomposed into simpler substances. EX: H2O, (it can be broken
down)
Mixture - (ANSWER)Exhibit the properties of the substances that make them up. 2 types: Heterogenous
and Homogenous.
, CHEM 1211 GEORGIA SOUTHERN TEST 1 QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+||BRAND NEW
2 types of mixtures - (ANSWER)homogeneous: also known as solution, their compositions do not vary
throughout a sample. EX: coffee, or smoothie, you can't see the milk and coffee and sugar separated.
heterogeneous: their compositions vary throughout a sample. EX: Pizza, you can pick the pepperoni
from the cheese or sauce, another example would be granite countertop because you can see the
different types of rocks.
Heterogeneous - (ANSWER)their compositions vary throughout a sample. EX: Pizza, you can pick the
pepperoni from the cheese or sauce, another example would be granite countertop because you can
see the different types of rocks.
Homogeneous - (ANSWER)also known as solution, their compositions do not vary throughout a sample.
EX: coffee, or smoothie, you can't see the milk and coffee and sugar separated.
Physical properties of Matter - (ANSWER)can be observed withOUT changing a substance into another
substance. EX: boiling point, density, mass, volume
Chemical properties of Matter - (ANSWER)Can only be observed when a substance is changed into
another substance. EX: flammability, corrosiveness, reactivity with acid.
2 types of properties of matter - (ANSWER)intensive and extensive and they are interchangeable within
chemical and physical properties of matter.
Intensive property - (ANSWER)independent of the amount of substance present. EX: density, boiling
point, color
Extensive property - (ANSWER)a property that depends on the amount of matter in a sample. Ex: mass,
volume, or energy.
Physical change - (ANSWER)A change in a substance that does not involve a change in the identity of the
substance. EX: changes of state, temperature and volume.
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+||BRAND NEW
Matter - (ANSWER)anything that has mass ans takes up space.
Atoms - (ANSWER)building blocks of matter, and they are the smallest form of matter other than
subatomic particles.
Element - (ANSWER)all made up of the same kind of atom for one element.
Molecule - (ANSWER)two or more atoms held together by covalent bonds, in specific shapes.
Compound - (ANSWER)made up of two or more different elements that are combined.
3 forms of matter - (ANSWER)solid, liquid, gas
Gas - (ANSWER)no fixed volume, easy to compress
Liquid - (ANSWER)distinct volume, compressible but not as much as gas
Solid - (ANSWER)fixed shape and volume, not compressible.
Pure substance - (ANSWER)usually referred to as substance, has distinct properties and a composition
that does not vary from sample to sample. 2 types of pure substances: elements, and compounds.
2 forms of pure substance - (ANSWER)Element: a substance that cannot be decomposed to simpler
substances. EX: anything on the periodic table of elements.
Compound: a substance which can be decomposed into simpler substances. EX: H2O, (it can be broken
down)
Mixture - (ANSWER)Exhibit the properties of the substances that make them up. 2 types: Heterogenous
and Homogenous.
, CHEM 1211 GEORGIA SOUTHERN TEST 1 QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+||BRAND NEW
2 types of mixtures - (ANSWER)homogeneous: also known as solution, their compositions do not vary
throughout a sample. EX: coffee, or smoothie, you can't see the milk and coffee and sugar separated.
heterogeneous: their compositions vary throughout a sample. EX: Pizza, you can pick the pepperoni
from the cheese or sauce, another example would be granite countertop because you can see the
different types of rocks.
Heterogeneous - (ANSWER)their compositions vary throughout a sample. EX: Pizza, you can pick the
pepperoni from the cheese or sauce, another example would be granite countertop because you can
see the different types of rocks.
Homogeneous - (ANSWER)also known as solution, their compositions do not vary throughout a sample.
EX: coffee, or smoothie, you can't see the milk and coffee and sugar separated.
Physical properties of Matter - (ANSWER)can be observed withOUT changing a substance into another
substance. EX: boiling point, density, mass, volume
Chemical properties of Matter - (ANSWER)Can only be observed when a substance is changed into
another substance. EX: flammability, corrosiveness, reactivity with acid.
2 types of properties of matter - (ANSWER)intensive and extensive and they are interchangeable within
chemical and physical properties of matter.
Intensive property - (ANSWER)independent of the amount of substance present. EX: density, boiling
point, color
Extensive property - (ANSWER)a property that depends on the amount of matter in a sample. Ex: mass,
volume, or energy.
Physical change - (ANSWER)A change in a substance that does not involve a change in the identity of the
substance. EX: changes of state, temperature and volume.
