Which element has the smallest atomic radius

Zn is placed in a solution of Cu (No3) 2 and Cu is placed in a Zn (NO3) 2 solution. In which of these will a reaction occur?

A sealed balloon is filled with 2.20 liters of helium gas at 20.0° C. If the pressure does not change, what is the temperature when the balloon expands to a volume of 2.60 liters? 16.9° C 23.6° C 25.1° C 73.3° C

Why does the earth have a liquid water supply and the moon does not

What is the best explanation of why it was important that Becquerel used a uranium salt in his experiments? Uranium salts are solid at room temperature. Uranium atoms are found in photographic plates. Uranium atoms are radioisotopes.

Which element has atoms that can form halide ions? (1) iodine (3) strontium (2) silver (4) xenon

Cobalt fluoride crystallizes in a closest packed array of fluoride ions, with the cobalt ions filling one-half of the octahedral holes. What is the formula of this compound?

When you get into a parked car in the summer time, the metal clip is hot and the seat belt fabric is not. What has a higher specific heat, the metal clip or the seat belt fabric? Think about the definition of specific heat.

A laboratory procedure calls for making 600.0mL of a 1.1M KNO3 solution. How much KNO3 in grams is needed?

How do you make good grades?

What will happen to the pressure inside a rigid container of gas if some of the gas is allowed to escape? (Assuming no change in temperature)