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Which combination of elements forms crystalline solids that will dissolve in water, producing a solution of ions that can conduct an electric current?
Metal and Nonmetal
An inorganic compound made of only two different elements has a systematic name that always ends with the suffix
Propane gas burns in oxygen to produce carbon dioxide, water, and energy. The reactants in this reaction are propane and
A non-metal atom combines with a second non-metal atom. The first non-metal atom
shares electrons with the second non-metal atom.
What is the meaning of the subscripts in a chemical formula?
number of atoms of an element in a compund
"Atoms are neither created or destroyed in a chemical reaction" is statement of the
Law of conservation of mass
A balanced chemical equation provides quantitative information about all the following except
Time of reaction
A material that speeds up a chemical reaction without being permanently changed by the reaction is called a
In a replacement (single displacement) reaction, elements that have the most ability to hold onto their electrons are
The least chemically active
A balanced chemical equation provides all of the following information except
Exchange rate of reactants and products
An ion exchange (double displacement) reaction can be identified by all of the following except
The required addition of heat
A solution with a state of equilibrium between the dissolving solute and solute coming out of solution is
Atmospheric air is a homogeneous mixture of gases that is mostly nitrogen gas. The nitrogen is therefore the
The solution concentration terms of parts per million (ppm), percent by volume, and percent by weight are concerned with the amount of
Solute in the solution
According to the label, a bottle of vodka has a 40% by volume concentration. This means the vodka contains 40 mL of pure alcohol
Mixed with water to make 100 mL of vodka
A salt solution has solid salt on the bottom of the container and salt is dissolving at the same rate that is it coming out of solution. You know the solution is
A saturated solution
Salt solutions freeze at a lower temperature than pure water because
Ions get in the way of water molecules trying to form ice
A scale of values that expresses the hydronium ion concentration of a solution is known as
The pH scale
Substance A has a pH of 2 and a substance B has a pH of 3. This means
Substance A is 10 times more acidic than substance B
The atom or group of atoms in an organic molecule that is the site of a chemical reaction is called the
An organic compound is a compound that
contains carbon, whether it was formed by a living thing or not
There are millions of organic compounds but only thousands of inorganic compounds because
carbon atoms can combine with up to four other atoms including other carbon atoms
Petroleum is believed to have formed mostly from the anaerobic decomposition of buried
plankton and algae
Many synthetic polymers become a problem in the environment because they
do not readily decompose and tend to accumulate
An organic molecule that does not contain the maximum number of hydrogen atoms is called
The organic acid that is found in sour milk, pickles, and in your muscles as a product of carbohydrate metabolism is
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