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Working with more than 2 variables in simultaneous equations can be daunting at first, but as long as you apply the same methods you have learned for simpler problems, you will get used to these more comp...

number of particles = mole x Avogadro constantAvogadro constant is 6.0 × 10²³ mol^–1.Mr of Ca(OH)₂ is 7.41g mol^-1mole = Mass / Mr = 7.41/7.41 = 1 moleThe questio...

The probability that a boy chosen at random studies French is 2/3. This is also a proportion. It says that for every 3 boys, you can say that 2 of them will study french. It is also close to 66% as it can...

Beckett talks about the theme of suicide consistently throughout the play, as the characters mull over their lives and existences. When Vladimir asks ‘What do we do now?’, Estragon replies quite casually ...

Both the Consumer Price Index (CPI) and Retail Price Index (RPI) are ways of measuring inflation which is the average change in price of a basket of goods. The RPI, however, includes the costs of housing ...