SEPUP Water Review: Question Preview (ID: 24282)

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A bond formed between a positive ion and a negative ion is called ________________.
a) A neutral bond
b) a covalent bond
c) an ionic bond
d) a super bond

Any substance that increases the concentration of OH- ions when it dissolves in water is __________.
a) an acid
b) a base
c) a neutral solution
d) a salt solution

If a solution can be neutralized by a base and turns universal indicator red, is it an acid or a base?
a) Acid
b) Base
c) Both
d) Neither

Any substance that increases the concentration of H+ ions when it dissolves in water is a(n)
a) acid
b) base
c) salt solution
d) neutral solution

If a solution turns universal indicator blue and can be neutralized by adding an acid, is it an acid or a base?
a) Acid
b) Base
c) Both
d) Neither

What is the best way to remove a dissolved solid pollutant from a water sample?
a) neutralization followed by filtration
b) precipitation followed by filtration
c) neutralization followed by precipitation
d) dilution followed by neutralization

True or False, a contaminant remains in a solution even when it is diluted so much that it can not be detected?
a) True
b) False

Which of the following is not a biological contaminant?
a) Viruses
b) Bacteria
c) Parasites
d) Oils and Cleaners

Which is the most diluted solution?
a) 1ooml of water with 100 ppm of table salt
b) 1ooml of water with 10 ppm of table salt
c) 1ooml of water with 1 ppm of table salt
d) 1ooml of water with 10,000 ppm of table salt

Water is called the universal solvent because it . . .
a) dissolves many different substances.
b) dissolves both acids and bases.
c) can be found throughout the universe.
d) supports living species.

A bond that forms when two atoms share electrons is called ______________.
a) a covalent bond
b) an ionic bond
c) a super bond
d) a neutral bond

Which of the following is not evidence of a chemical property?
a) A new substance is formed
b) A different reaction to universal indicator
c) a color change
d) a phase change (between solid, liquid, or gas)

When is a solution neutral?
a) When an acid is added to a base
b) When a base is added to an acid
c) When the pH is 7
d) When universal indicator is red or blue

What is a precipitate?
a) A solid that forms from two solutes
b) Rain
c) A solute that dissolves into water
d) A solvent that can dissolve a salt

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