Chemistry chapter 1 section 3

What would be the boiling point of water if the air pressure over the liquid were reduced to 60kPa?

38kPa

what is the normal boiling point of CC4?

75C

A period is A a horizontal row of elements in the periodic table B a vertical column of elements in the periodic table C a region of two or more columns in the periodic table D another name for the periodic table

A

Fusion A melting B opposing changes occurring at equal rates in a closed system C readily evaporated D a change directly from a gas to a solid

A

Solid to liquid A Melting B condensation C sublimation D vaporization

A

The shininess of the metal is called its A luster B color C streak D malleability

A

When a substance in a closed system undergoes a phase change and the system reaches equilibrium, A. The two opposing changes occur at equal rates B there are no more phase changes C one phase change predominates D the amount of substance in the two phases changes

A

Metalloids lie between metals and nonmetals on the periodic table they tend to be A. Nonconductors B. Conductors C. Semi conductors D. Unreactive

C

On known elements are organized into a chart known as the. A element table B group table C periodic table D metal nonmetal table

C

Solid to gas A melting B condensation C sublimation D vaporization

C

The vertical columns of the Parriott a table are called A. Periods B. Rows C groups D the chemicals

C

Which of the following is not a property of metals? A. Malleability B good electrical conductivity C brittleness D good heat conductivity

C

volatile A melting B opposing changes occurring at equal rates in a closed system C readily evaporated D a change directly from a gas to a solid

C

Gas to liquid A MELTING B CONDENSATION C SUBLIMATION D VAPORIZATION

B

The element carbon is classified as a A metal B nonmetal C metalloid D noble gas

B

Which of the following is not true of nonmetals? A. Many are gases B many are ductile C as solids they tend to be brittle D most are poor heat and electrical conductors

B

Which of these describes noble gases? A mass less B Unreactive C good heat conductors D. Good electrical conductors

B

If extra product is introduced, which reaction will be favored?

reverse reaction

If a forward reaction is favored, will the concentration of reactants increase, decrease, or stay the same?

decrease

If the temperature of the system decreases, which reaction will be favored?

forward reaction

Deposition A melting B opposing changes occurring at equal rates in a closed system C readily evaporated D a change directly from a gas to a solid

D

Liquid to gas A MELTING B CONDENSATION C SUBLIMATION D VAPORIZATION

D

Which of the following elements is a metalloid? A neon B selenium C mercury D silicon

D

Equilibrium: A melting B opposing changes occuring at equal rates in a closed system C readily evaporated D a change directly from a gas to a solid

b