Calculate δh⁰298 (in kj) for the process p(s) + 5/2 cl2(g) → pcl5(g) from the following information.
p(s) + 3/2 cl2(g) → pcl3(g) δh⁰298 = −287 kj
pcl3(g) + cl2(g) → pcl5(g) δh⁰298 = −88 kj

What is the molar mass of potassium nitrate, kno3

When hydrochloric acid reacts with potassium hydroxide solution, the following reaction occurs. hcl (aq) + koh (aq) h2o (l) + kcl (aq) the reaction gives off heat energy, so it is an reaction.

What state of matter is ice a. liquid b. element c. solid d. gas