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What is the quark composition of a proton?

UUD, 2 up quarks and 1 down quark

SK
Answered by Shivani K. Physics tutor
2083 Views

State how you would test a solution for the presence of sulfate ions? Explain, using an ionic equation, what you would expect to observe in the presence of sulfate ions.

You would add barium chloride solution to the sample to be tested. Group II sulfate solubility decreases down the group - with barium sulfate being insoluble. We would expect to see a heavy white precipit...

JD
Answered by Joshua D. Chemistry tutor
13289 Views

What is the purpose of the design specification for both the designer and the manufacturer?

A design specification is a set of design criteria that is created before the designing process begins and it is used to set targets and parameters for the designer in order to ensure their product is rel...

AS
15506 Views

Integrate cos^2x + cosx + sin^2x + 3 with respect to x

Step 1: simplify the question using the law cos2x + sin2x = 1 /// Step 2: add the numbers /// Step 3: integrate cosx (remember the differentiation/integration circle sin --&g...

AB
Answered by Amanda B. Maths tutor
3975 Views

How can I successfully integrate context into my essays?

Discussing the context in which a literary work was written is essential if you wish to access the top grades at A-Level, however this can be notoriously difficult to do well. It is important that your co...

SP
5097 Views

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