reactant

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Two moles reactant... What happens if I change the pressure?
兩摩爾反應(yīng)物。,如果我改變壓強會怎么樣？
Namely, in this case, the changing of what was the product now, B would be the reactant, C, back into A plus B and it has nothing to do with the rate this way.
在這個例子中也即是說，當(dāng)我們把這里的產(chǎn)物變成反應(yīng)物，讓C生成A和,這個反應(yīng)的速率與,上面那個反應(yīng)的速率沒有關(guān)系。
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.
看來我們好像沒辦法,顯示結(jié)果的比例，但看起來大部分人,都能得到正確的結(jié)果,那就是H2是受限制的反應(yīng)物2,看來現(xiàn)在我們還沒搞明白。

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.
在方程的左邊的,都稱為反應(yīng)物，在方程右邊的,都稱為產(chǎn)物。
麻省理工公開課 - 固態(tài)化學(xué)導(dǎo)論課程節(jié)選
And we haven't talked about reactions at all yet, so you don't need to worry about the specifics of that exactly, but just that if you have this negative change in energy, you have a more stable product than you do reactant.
當(dāng)然我們還沒有開始討論反應(yīng)，所以你不用擔(dān)心它的細節(jié)是怎么樣的，你只需要知道，如果能量的變化是負值，那么你將得到一個比反應(yīng)物更穩(wěn)定的生成物。
麻省理工公開課 - 化學(xué)原理課程節(jié)選
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.
看來我們好像沒辦法,顯示結(jié)果的比例，但看起來大部分人,都能得到正確的結(jié)果,那就是H2是受限制的反應(yīng)物2,看來現(xiàn)在我們還沒搞明白。
麻省理工公開課 - 化學(xué)原理課程節(jié)選

a substance that participates in a chemical reaction, esp a substance that is present at the start of the reaction &rarrcompare product