Which particles determine the atomic number of the nucleus? which determine the atomic weight?

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

How are isotopes of the same chemical element alike? how are they different?

Miner's coal distributors does not mine coal itself, nor does it even store or handle the coal. instead, miner's solicits orders for low sulfur coal from other firms, then purchases the required amount from suppliers and directs them to ship the coal to its customers. what is miner's