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How many milliliters of 12.0 M hydrochloric acid (#HCl#) is required to prepare 0.75 L of a 0.25 M solution of #HCl#?
How do you solve #4x^2=9x#?
How do you factor #5a - 20 #?
How do you prove# (cosx)(cscx)(tanx)=1#?
What does STP in chemistry stand for?