3. An object is seen to either speed up, slow down, or change direction. These behaviors are caused by .

In which block of the periodic table is uranium (u) found? s blockd blockp blockf block

Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)

Reactions in cells take place at about a. 40°c b. 0° c. 100°c d. 60°c