Given the following reaction equation for the synthesis of Phosphorus Trichloride. Is the reaction endothermic or exothermic? P4(s) + 6 Cl2(g) → 4 PCl3(g) + 1152 kJ

Exothermic because heat energy is a product.

Endothermic because heat energy is a product.

Endothermic because heat energy is a reactant.

Exothermic because heat energy is a reactant.

Sex cells from female reproductive organ? 1) mitosis 2) fertilization 3) zygote 4) eggs 5) meiosis 6) sperm

Fugu, also known as puffer fish, is a sushi delicacy that can also be lethal. puffer fish contain a powerful toxin that can kill an adult a few hours after ingestion. sushi chefs who prepare fugu must be specially trained because any contamination of the toxin-free areas of the fish can be deadly. recently this toxin has been put to good use, as scientists have discovered that a purified form of it can treat severe pain in cancer patients. this recent scientific discovery would fall under which area of chemistry? applied biochemistry pure organic chemistry pure physical chemistry applied inorganic chemistry

What is the most stable monatomic ion formed from nitrogen