Honors Chem. Unit 1 Test Questions And Answers Latest Top Score.
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Honors Chem
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Honors Chem
Honors Chem. Unit 1 Test Questions And Answers Latest Top Score.
round to 5 significant figures: 192.6739 - correct answer. 192.67
anything that has mass and takes up space - correct answer. matter
the smallest unit of an element that maintains the chemical identity of that eleme...
Honors Chem. Unit 1 Test Questions
And Answers Latest Top Score.
round to 5 significant figures: 192.6739 - correct answer. 192.67
anything that has mass and takes up space - correct answer. matter
the smallest unit of an element that maintains the chemical identity of that element -
correct answer. atom
the mass per unit volume of a substance - correct answer. density
a pure substance that cannot be broken down into simple substances and is made of
one type of atom - correct answer. element
a substance that can be broken down in simple substances and it is made of two or
more elements that are chemically bonded - correct answer. compound
depend upon the amount of the substances present - correct answer. extensive
property
examples of the extensive property - correct answer. mass, volume, energy
independent of the amount of the substance that is present - correct answer. intensive
property
examples of the intensive property - correct answer. mass, volume, energy, etc.
the characteristics of matter that can be changed without changing its composition;
characteristics that are directly observable - correct answer. physical property
changes in matter that do not change the composition of a substance - correct answer.
physical change
, examples of physical change - correct answer. changes of state, temperature, volume
a substance's ability to undergo changes that transform into different substances -
correct answer. chemical property
examples of the chemical property - correct answer. flammability, rusting of steel, and
the digestion of food
changes that result in new substances. the substances that react are reactants and
those formed are products - correct answer. chemical change
examples of chemical change - correct answer. combustion, oxidation, decomposition
the physical process where matter moves from one state to another - correct answer.
change of state
examples of change of state - correct answer. melting, evaporating, boiling, feezing
matter with definite volume and shape - correct answer. solid
matter with definite volume but indefinite shape - correct answer. liquid
matter that has neither definite volume nor definite shape - correct answer. gas
every sample has exactly the same characteristic properties and composition; are
elements or compounds, if compounds then they are broken down by chemical
decomposition - correct answer. pure substance
two or more substances that are not chemically combined and can be separated by
physical means. the substances in a mixture retain their individual properties - correct
answer. mixture
mixtures that are uniform, cannot tell the components apart - correct answer.
homogeneous mixtures
mixtures where the components of the mixture are not uniform, or have localized
regions with different properties - correct answer. heterogeneous mixtures
coffee with sugar and milk - correct answer. example of a homogeneous mixture
oil with water - correct answer. example of a heterogeneous mixture
a process where a set of substances undergo a chemical change to form a different
substance - correct answer. chemical reaction
how close a measure value is to the actual/true value - correct answer. accuracy
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