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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