Specific heat is used to explain why different substances

a) sink or float

b) change temp. at different rates

c) vaporize or condense at different temp.'s

d) melt and freeze at the same temp.

Which family in the periodic table has elements that are all radioactive? Alkaline earth metals Actinides Halogens Nonmetals

Hclo is a weak acid (ka=4.0x10^-8) and so the salt naclo acts as a weak base. what is the ph of a solution that is 0.037 m in naclo at 25 c

What is the term given to a solution that contains the maximum amount of dissolved solute?

Which term is a unit of measure for power? A joule B newton C watt D resistance

In a reaction A - - > B, when C is added it reacts irreversibly with A. What can we say about C? A. C will make the reaction spontaneous. B. C is an intermediate. C. C will lower the rate of the reaction. D.

Ice does not need to melt into liquid water before it can return to the atmosphere as water vapor. a. True b. False

How much ice at a temperature of - 17.5 ∘C must be dropped into the water so that the final temperature of the system will be 31.0 ∘C?

Why does a gas fill completely the vessel in which it is kept?

Individuals who work full time and those who work part-time enjoy basically the same number of paid leave benefits. True False

There is a large increase in ionization energy between the second and the third ionization energies of a metal. What kind of ion is the metal likely to form? Include the charge in your answer.