6 Answered Questions for the topic Gcse

06/10/20

Work out the concentration of the sulfuric acid in grams per dm3 if it took 25cm3 of it to completely neutralise the sodium hydroxide. The relative molecular mass of sulfuric acid is 98
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06/10/20

What type of substance is phenolphthalein
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06/09/20

Magnesium burns in air to give magnesium oxide as shown below. If 8g of magnesium oxide product is produced, calculate how much magnesium metal must have been used.

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06/09/20

The equation below shows the formation of ammonia. If 56g of nitrogen gas is used in the reaction, how much ammonia will be formed?
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09/15/19

University admissions

I was born and raised in London and studied there up until year 9. We moved to Egypt to be with a sick family member for the past two years. I want to attend university in London preferably a top... more
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01/11/15

Probability in a game of chess
In a game of chess, you can win, draw, or lose.  Gary plays two games of chess against Mijan. The probability that Gary will win any game against Mijan is 0.55 The probability that Gary will... more
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