Chemistry Of Life Question Preview (ID: 2555)
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A covalent bond is formed as the result of
a) transfer of electrons
b) sharing of a proton pair
c) transfer of protons
d) sharing of an electron pair
Isotopes are the result of different numbers of
a) neutrons
b) protons and electrons
c) electrons
d) protons
In chemical reactions, atoms are
a) created
b) rearranged
c) neutralized
d) destroyed
A chemical formula would NOT indicate the
a) arrangement of atoms
b) elements present
c) number of molecules
d) number of atoms of each element
When hydrogen and oxygen combine to form water, hydrogen would be a(n)
a) product
b) radioisotope
c) reactant
d) ionic bond
Unstable isotopes that emit charged particles are known as
a) compounds
b) radioactive
c) ions
d) molecules
A mixture in which particles settle to the bottom is called a
a) solvent
b) solute
c) suspension
d) solution
In a neutral atom, the atomic number tells you the number of
a) protons
b) protons and electrons
c) neutrons
d) electrons
Which of the following elements are most abundant in the human body?
a) Mercury
b) Aluminum
c) Sulfur
d) Oxygen
What subatomic particle(s) are located in the nucleus
a) protons
b) protons and neutrons
c) neutrons
d) protons and electrons
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