2 nf3 + 225 kj - > n2 + 3f2 is it exothermic or endothermic

How does a scientist critique another scientist's conclusion? A. By making fun of the other scientist B. By reading secondary source C. By making up alternate conclusion D. By presenting date that contradicts those conclusions

Why must a gamete have only one half the number of chromosomes found in body cells?

What is parthenolide

What is the oxidation state of each element in the compound CaS04? Include + or - in your answer as appropriate

Which term is defined as a measure of the randomness of system

Fission of U-235 can produce: A. Krypton B. Strontium C. Barium D. Xeonon E. All of the above

How does an object become negatively charged? It gains electrons. It loses electrons. It gains protons. It loses protons.

TRY H Vele Elements y Llectron Configurations for P-Block Use the periodic table to determine the electron configuration for aluminum (AI) and arsenic (As) in noble-gas notation A [Ar]352301 [He1232206352301 [Ne]3:23p1 [Ne]352302

If you measure the mass of a model car to be 230 grams. the actual mass is 218 grams. what is your percent error.

If I have 1.9 moles of gas held at a pressure of 5 atm and in a container with a volume of 50 liters, what is the temperature of the gas?