How many moles are there in 45.6 grams of yttrium?

A classroom has a volume of 278 m3. What is its volume in km3

Ten grams of a gas occupies 12.5 liters at a pressure of 42.0 cm Hg. What is the volume when the pressure has increased to 75.0 cm Hg? 6.00 L 7.00 L 8.00 L none of the above

What does this symbol, 1/0N, mean? A. an electron of negligible mass and one unit of charge B. a position of negligible mass and one unit positive charge C. a neutron of zero mass and one unit positive charge D.

An aqueous solution of nickel (II) sulfate is mixed with aqueous sodium hydroxide. Will a double replacement reaction occur? a. No, solid nickel (II) hydroxide is soluble in water. b. No, solid sodium sulfate is soluble in water. c.

Group 1A element sodium combines with Group 7A element chlorine to form sodium chloride or table salt.

Substances with strong intermolecular bonds vaporize _ than those with weaker bonds. faster more easily at the same rate slower

How many dozen kernels of corn are in a 50 pound bag of corn

How does magnesium obey the octet rule when reacting to form compounds

Is heat conductivity a physical or chemical property?

When 5800 joules of energy are applied to a 15.2-kg piece of lead metal, how much does the temperature change by