Using the balanced chemical equation: mg + 2hcl --> mgcl2 + h2 how many grams of mgcl2 are produced if 4. 67 moles of hcl react?.

Layer r contains a well-known index fossil that is 100 million years old. based on this information and the principle of superposition, a. layers t and m are older than 100 million years, and layers x and g are younger than 100 million years. b. layers t, m, x, and g are all older than 100 million years. c. layers t and m are younger than 100 million years, and layers x and g are older than 100 million years.