When hydrochloric acid reacts with sodium sulfide, hydrogen sulfide gas and sodium chloride are produced. how many moles of h2s will be generated by 2.56 moles of hcl?

Why is permeable soil best for plants that need a lot of drainage?

What is a metal replacement reaction

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.