How would copper become copper (+2)

A block of wood has a density of 0.95 g/cm3. will it float or sink when placed on a liquid with a density of 0.88 g/mL? explain your answer.

If a 58 g sample of metal at 100 c is placed into calorimeter containing 60g of water at 18 c, the temperature of the water increases to 22 c. Calculate the amount of heat absorbed by the water in joules

F2 (g) + 2Br (aq) = Br (t) + F (aq) which species is redused? a) F b) Br c) F2 d) Br2

A homogeneous mixture of two or more substances is known as a

Which of these phrase from Elizabeth bishops poem "the fish" most shows her respect for the fish?

If we have 22 molecules of sodium sulfate in water, how many sodium ions will be observed in solution?

Sodiun atom, potassium atom, and cesium atoms have the same?

A molecule is what?

How many electrons in an atom could have these sets of quantum numbers n=7 l=3 ml=-1?

The reaction A+B-> C+D rate=k[A][B]^2 has an initial rate of 0.0810 M/s. What will the initial rate be if [A] is halved and [B] is tripled? What will the initial rate be if [A] is tripled and [B] is halved?