An alpha particle is not a neutral atom. it has a charge of 2. why is this the case?

Why is it illegal to manufacture fireworks without a license

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure

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