5 Questions
If $x = 3 + 2\sqrt{2}$, what is $\frac{x}{3 - 2\sqrt{2}}$ equal to?
6
If $x = \sqrt{5} - 2$, then $x + \frac{1}{x}$ is equal to:
4
If $x = 1 + \sqrt{2}$, then $x + \frac{1}{x}$ is:
4
$\sqrt{5} - \sqrt{3}$ equals:
$\sqrt{5} - \sqrt{3}$
What is the value of $\frac{5 - \sqrt{7}}{5 + \sqrt{7}}$?
$8 - \sqrt{15}$
This quiz covers the basics of chemistry, including the language of chemistry, symbols, valency, formulae, and balancing simple chemical equations.
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