What is the total number of valence electrons in a sulfide ion in the ground state?
(1) 8 (3) 16
(2) 2 (4) 18

Apackage contains 1.33 lb of ground round. if there’s 29% fat, how many grams of fat are in the round? i got 175 g but the textbook says the answer is 91 g of fat. how?

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.

What is the percent by mass of magnesium sulfate in mgso4.7h2o