Ch. 9, Carbon Chemistry Question Preview (ID: 45071)


Part 3. TEACHERS: click here for quick copy question ID numbers.

The substance being dissolved to form a solution is the _______________________ .
a) solvent
b) solute
c) precipitate
d) mixture

Which if the following properties is NOT characteristic of acidic solutions?
a) has a sour taste
b) conducts electricity
c) feels slippery
d) is corrosive to certain metals

when aqueous solutions of table salt and silver nitrate are mixed, a white solid forms. This solid is ______________.
a) soluble
b) a precipitate
c) an alloy
d) a solute

When both -NH2 and -COOH replace hydrogen atoms on the same carbon atom, a(n) ____________ is formed.
a) amine
b) amino acid
c) carboxylic acid
d) carbohydrate

How does a solution with a pH of 2 compare to a solution with a pH of 1?
a) the pH 2 solution is 2 times more acidic than that with a pH of 1
b) the pH 1 solution is 10 times more acidic than that with a pH of 2
c) the pH 1 solution is 2 times more basic than that with a pH of 2
d) the pH 2 solution is 10 times more acidic than that with a pH of 1

Stainless steel is an example of a __________________ solution.
a) liquid-solid
b) solid-liquid
c) solid-solid
d) gas-solid

Which of the following factors does NOT explain why carbon can form so many compounds?
a) carbon can bond in chains and rings
b) the same atoms can be grouped in different ways. forming isomers
c) carbon can form four single bonds
d) carbon has six protons in its nucleus

According to the law of conservation of mass, how does the mass of the products in a chemical reaction compare to the mass of the reactants?
a) there is no relationship
b) the mass of products is sometimes greater
c) the mass of reactants is greater
d) the masses are always equal

Which of these statements about isomers is NOT correct?
a) the existence of isomers is a reason for the large number of carbon compounds
b) isomers have the same molecular formula
c) isomers have different structural arrangements of their atoms
d) Isomers have the same physical and chemical properties

Which of the following compounds is a carbohydrate?
a) C2 H6 O
b) C3 H6 O2
c) C6 H12 O6
d) C 2 H 5 N

Which of the following mixtures is NOT an example of a substance?
a) drinking water
b) air
c) brass
d) pizza

Which of the following functions is NOT a role of proteins in the body?
a) catalysts in cell reactions
b) store energy in the form of glycogen
c) make up fingernails and hair
d) in the form of hemoglobin, carry oxygen in the blood

A solution that contains all the solute it can hold under the given conditions is _____________________ .
a) saturated
b) unsaturated
c) dilute
d) supersaturated

A solution with a pH of 13 is a _________________________ .
a) weak acid
b) weak base
c) strong acid
d) strong base

The solubility of sodium chloride (table salt) in water at 10 degrees Celsius is 32 g in 100 g of water. If 14 g of sodium chloride are dissolved in 50 g of water at 10 degrees Celsius, the solution is _____________________________ .
a) saturated
b) dilute
c) concentrated
d) acidic

Each substance written to the right of the arrow in a chemical equation is a ___________________ .
a) reactant
b) product
c) precipitate
d) catalyst

When the following chemical reaction is balanced, what number is placed before NH3? N2 + 3H2 + NH3
a) 1
b) 2
c) 3
d) 6

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