Why does iron not fit the pattern in column 7

What are the similarities of physical and chemical change ?

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

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o