What volume of co2 gas is produced when 20g of 20% pure caco3 is completely heated​

The government of country a has determined there is a coal shortage a seed on mining reports as a result of these data the government decreases coal exports to other nations access to information country a

A2 cm object is 10 cm from a convex lens that has a focal length of 4.4 cm, the image is 8cm from the lensz the height of the image, to the tenths place is

What gigantic island is primarily in the arctic circle?