How many molecules are there in 43.5 g of water?

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

Consider this equilibrium: n29) + o2(g) + 2no(c).nitrogen gas and oxygen gas react when placed in a closed container. as the reaction proceeds towards equilibrium, what happens to the rate of thereverse reaction?

Maya wrote if you step to describe how carbon circulates between the atmosphere and living organisms