C + 2zn0 → CO2 + 2zn How many grams of carbon dioxide will be produced if 135 grams of ZnO is completely reacted?​

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

According to le chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.