W12 Covalent Bonding DiPofi 23-24 Question Preview (ID: 62402)


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Atoms are the ____ unit of ordinary matter that forms a chemical element.
a) largest
b) heaviest
c) smallest
d) most dense

The ____ that hold atoms together are called chemical bonds.
a) alkalis
b) forces
c) acids
d) bases

The type of chemical ____ formed between atoms depends on what type of elements the atoms are.
a) charge
b) fusion
c) incision
d) bond

When metal atoms transfer electrons to nonmetal atoms during a chemical reaction, a (an) ___ bond is formed.
a) ionic
b) covalent
c) metallic
d) bionic

A _____ bond is formed when two nonmetal atoms share electrons. This forms a unit called a molecule.
a) ionic
b) metallic
c) covalent
d) bionic

A covalent bond is a chemical bond that is formed when two nonmetal atoms ___ one or more pairs of electrons.
a) split
b) share
c) separate
d) transfer

The ____ rule we remember states that atoms will continue to form chemical bonds until they reach a stable outer shell of 8 electrons.
a) triad
b) ionic
c) covalent
d) octet

______ has the chemical formula H2O. This means that a molecule of water has one oxygen atom and two hydrogen atoms.
a) Water
b) Carbon
c) Carbon Dioxide
d) Peroxide

A molecule of oxygen contains two oxygen atoms that each have ____ valence electrons.
a) five
b) two
c) six
d) three

A molecule of nitrogen contains two nitrogen atoms that each have ____ valence electrons.
a) six
b) five
c) two
d) three

Oxides are compounds that contain ____ and another element.
a) boron
b) carbon
c) hydrogen
d) oxygen

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