Approximately when did the first plants and arthropods appear on land? a. 444 ma b. 488 ma c. 299 ma d. 416 ma

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

How many moles of bromine are needed to produce 3.23 moles of potassium bromide

What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures