Chemical Bonding And Chemical Reactions Question Preview (ID: 27686)


Bonding And Chemical Reactions. TEACHERS: click here for quick copy question ID numbers.

A quick way to show chemical reactions is called a ____________.
a) coefficient
b) subscript
c) chemical equation
d) chemical formula

What is evidence of a chemical reaction?
a) gas bubbles form
b) a new substance is produced
c) changes in color
d) changes in the state of matter

What is a chemical reaction?
a) When energy is released as heat
b) When energy is released as light
c) When new substances are formed
d) When chemical bonds are broken and new bonds form

Burning gasoline is a ___________________ change.
a) Chemical
b) Physical
c) Chemical and physical
d) None of the above

Which member of the Halogen group is the most reactive?
a) Chlorine
b) Fluorine
c) Bromine
d) Astitine

How do atoms become negative ions?
a) by losing a proton
b) gaining a proton
c) by losing a valence electron
d) by gaining a valence electron

How do atoms become positive ions?
a) by gaining a valence electron
b) by losing a valence electron
c) by gaining a proton
d) by gaining an electron

What family will bond with Alkaline Earth Metals?
a) The oxygen Family
b) The Halogens
c) The Nitrogen Group
d) The carbon Group

What is an ion?
a) a neutron
b) a proton
c) an electron
d) a charged particle

What is listed on the left side of a chemical equation?
a) the products
b) the reactants
c) gases and solids
d) all balanced elements

Ionic bonding involves a ____________ and a _________________.
a) Metalliod gaining an electron; metal losing an electron
b) Metalliod losing an electron; nonmetal gaining an electron
c) Metal gaining an electron; non metal losing an electron
d) Metal losing an electron; a nonmetal gaining an electron

What group is likely to bond with the Alkaline Earth Metals?
a) The Oxygen Family
b) The Nitrogen Group
c) The Boron Family
d) The Noble Gases

What does the Principle of Conservation men?
a) Matter is created and destroyed.
b) Matter does not change.
c) Matter is not created or destroyed.
d) Matter is only temporary.

Explain the Law of Conservation of Mass.
a) The mass of the products must be the same as the mass of the reactants.
b) The mass of the products must be more than the mass of the reactants.
c) The mass of the products must be less than the mass of the reactants.
d) The mass of the reactants varies from the mass of the products

What makes an observation quantitative?
a) it is made by a qualified scientist
b) it is of good quality
c) it does not refer to numerical values
d) it involves numerical values

What is another term for mass being conserved?
a) stable reactants and products
b) higher reactants than products
c) balanced reactants and products
d) lower reactants than products

What is the common name for two atoms of hydrogen bonded to one atom of oxygen?
a) Carbon Dioxide
b) Sugar
c) Methane
d) Water

The mass before a chemical reaction ______________ the mass after a chemical reaction.
a) must be the same as
b) must be more than
c) must be less than
d) cannot be the same as

How many bonds form when hydrogen bonds to oxygen?
a) 12
b) 6
c) 2
d) 1

What family of elements is likely to bond with Group 1 (Alkali Metals)?
a) Alkaline Earth Metals
b) Carbon Group
c) Halogens
d) Oxygen Family

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