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Knewton Review Questions Solved 100% Correct |Verified Answers
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Knewton Review Questions Solved 100%Correct |Verified Answers
Which of the following is/are the smallest particle(s) of a substance that can
exist independently without changing the substance itself? Select all that apply.
a. compound
b. molecule
c. atom
d. neutron - Answer molecule and atom
Which of the following statements about atoms and molecules are true?
a. all substances are composed of molecules.
b. chemical bonds hold molecules of a substance together.
c. all molecules are composed of atoms.
d. all substances are held together by chemical bonds. - Answer c. all molecules are
composed of atoms; a molecule is defined as two or more atoms joined by strong
forces called chemical bonds
The smallest unit of matter that is indivisible without utilizing a nuclear reaction
is known as:
, a. an atom
b. a molecule
c. a mixture
d. a compound - Answer a. an atom
The atom is the smallest unit of an element. Molecules, mixtures, and compounds
can be broken down into smaller constituents with relative ease.
The characteristics of atoms are responsible for the following aspects of a type
of matter, EXCEPT:
a. color
b. density
c. monetary value
d. luster - Answer c. monetary value
Which of the following is NOT a substance made of one type of
molecule. a. carbon dioxide
b. glucose
c. water
d. a cell - Answer d. a cell
A cell is a collection of many different types of molecules.
A ____________ consists of atoms of two or more different elements bound together. -
Answer compound
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