It is a decomposition Reaction in which NaHCO3 reacts with any acid to give carbonic acid (i.e. H2CO3 or H2O CO2) it is usually used as a wash to remove any acidic impurities from a "crude" liquid.

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if i have an 87 average in the class and my summative was worth 15%....i got a 65, whats my grade now?

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Hi, I would like to know what my average is in my english class.. I am having trouble figuring it out by viewing pervious discussions. assignments: 83% that was worth 15%, 80% that was worth 10%, 100% that was worth 5%, 92% that was worth 5%, 90% that was worth 10%, and a 90% that was worth 5%. please help calculate my average and explain how you did it so that I can do it for my other classes. thank you.

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Does an increase in temperature a) increase reaction rate b)deacrease reaction rate c)does not affect reaction rate d) acts as a catalyst

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For this, first look at what you have in the beginning. 2H, 2Cl, 2Na, 1C, 3O. This must be the same at the end. What you have written as the end product is 2Na, 2Cl, 2H, 3O and 1C. Exactly the same. Thus, there is 1 mole of CO2.

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I dotn know the answer.

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If you got 144 points out of 200, that is a 72% which is a C letter grade

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For immigration, the band for writing is: Writing - 6.5 Band = 2 immigration points

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