1·Two moles reactant... What happens if I change the pressure?
两摩尔反应物。，如果我改变压强会怎么样？
2·All right, so it looks like we weren't showing the percentages here, but it looks like hopefully most of you were able to get the correct answer of H2 being the limiting reactant.
看来我们好像没办法，显示结果的比例，但看起来大部分人，都能得到正确的结果，那就是H2是受限制的反应物2，看来现在我们还没搞明白。
3·And if you are doing chemistry then it could be how much you put of some reactant and how much of the output product that you wanted to synthesize generated.
或者你在做化学实验，数据就是，需用的反应物的量，和你想合成的生成物的量。
4·So, anything on the left side of the equation is called a reactant, and anything on the right side of the equation is called a product.
在方程的左边的，都称为反应物，在方程右边的，都称为产物。
5·Write an equation for the overall reaction and identify the source of each reactant.
写出一个总反应方程式并指出每种反应物的来源。