Consider the following reaction: Cu(s) + 2 AgNO3(aq)
→ Cu(NO3)2(aq) + 2Ag()
In a rate experiment, a coil of copper wire is placed into a solution of silver nitrate. The following
data are recorded.
Time (hours) Mass of Copper (g)
0.0
3.45
4.0
2.12
Calculate the rate of this reaction.

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.