Trong số các chất dưới đây, hãy chỉ ra đâu là đơn chất? Hợp chất? Vì sao? CO2, H2, P2O5, O3, CH4, CH3COOH, Ca, Cl2, Cu, C6H12O6, Fe, BaCO3

If 15 drops of ethanol from a medical dropper weight 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? the density of ethanol is 0.80g/ml

How many atoms are in 2 moles of phosphorus?

Achemical equilibrium between gaseous reactants and products is shown. n2(g) + 3h2(g) ⇌ 2nh3(g) how will the reaction be affected if the pressure on the system is increased? it will shift toward the reactant side as there is lower pressure on the reactant side. it will shift toward the product side as there is higher pressure on the product side. it will shift toward the reactant side as there are a greater number of moles of gas on the reactant side. it will shift toward the product side as there are a fewer number of moles of gas on the product side.