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  • Created by: Abi14
  • Created on: 01-04-14 19:12
calculate the mass of calcium oxide that can be made from 10g of calcium carbonate in the reaction-
CaCO3 = 100g/10=10g (to get 10g of what we want.) CaO=56g out of 100g -->56g/10 = 5.6g (amount thats in 10g)
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what does the yeild of a chemical reaction tell us?
describes how much product is made from a reaction in a balance equation. it tell us how much product is made compared with the maximum amount tha t could be made.
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what is the formula for percentage yeild?
amount of product collected / maximum amount of product possible X100%
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why is it not usually possible to get 100% yeild from a chemical reaction?
reactions may not go to completion, other reactions may happn and some of the prodcuts may be lost when it is seperated or collected.
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why should chemical manufacturers use reactions with high yeilds?
using reactions with hig yeilds in industry helps to conserve resources and to reduce waste. chemical processes should also waste as little energy as possible. working in these ways helps to reduce pollution and makes production more sustainable.
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what is a reversible reaction?
if the products of a chemical reaction can react to produce the reactants, the reaction can go in bothe directions. this type of reaction is called a reversible reaction. it is representes by . one arrow points forwards and one points backward
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what is an example of a reversible reaction?
ammonium chloride ammonia + hydrogen chloride
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Card 2

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what does the yeild of a chemical reaction tell us?

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describes how much product is made from a reaction in a balance equation. it tell us how much product is made compared with the maximum amount tha t could be made.

Card 3

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what is the formula for percentage yeild?

Back

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Card 4

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why is it not usually possible to get 100% yeild from a chemical reaction?

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Card 5

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why should chemical manufacturers use reactions with high yeilds?

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