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11.25g of hydrated copper (II) sulfate is heated to constant mass. The new mass is found to be 7.19g. What is the formula of the hydrated copper (II) sulfate?

Hydrated Copper (II) sulfate The hydrated term means that this compound contains water of crystallisationWater of crystallisation means that there are chemically bonded water molecules withing the compound t...
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Answered by Una M. • Chemistry tutor
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How can pressure groups influence the government in America?

There are 4 access points that pressure groups can utilise in American government:Congress - lacks party allegiance, receives funding from pressure groups, and can be influenced through committees.Executive ...
EG
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How do I know when to use the imparfait or the passé composé when talking in the past tense?

The passé composé, compared to the imparfait, is used when talking about finished actions in the past. The imperfect, therefore, is used when we want to talk about past actions that had no obvious completion...
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Answered by Michael O. • French tutor
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What can I do to prepare for the Oxford HAT?

The source based HAT is used as part of the Oxford admissions to observe whether candidates have the appropriate skills to succeed as an Oxford History undergraduate. These skills can be divided into the fol...
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Answered by Alex N. • HAT tutor
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Simon is three times older than Cheryl. In five years, the sum of their ages will be 74. How old is Simon?

Currently Simon (S), is 3 times older than Cheryl (C), therefore:S = 3CAnd including the other information a simultaneous equation can be constructed, making sure to note that both will have aged by 5 years ...
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Answered by Luke H. • TSA Oxford tutor
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