Question #c9e1c - Socratic OK, because the problem statement is ambiguous, I'd rather try to prove a more general and--presumably--more useful result I shall prove that, if a b is rational and x is irrational, then their sum a b + x is irrational (a and b are integers and b!=0) I'll use a proof by contradiction: let's assume that the sum of the two numbers is rational This means that the sum can be written as a ratio
Question #67db3 - Socratic you would get about 35 8 grams of Br_2 from this reaction Let's begin with balancing our equation and figuring how much we have of everything The reaction between Calcium Bromide and Chlorine will be a single replacement reaction Therefore, we know the reaction will look a little like this: CaBr_2 + Cl_2 -> CaCl_2 + Br_2 Luckily we don't need to try and balance this equation, as it is
Question #7a784 - Socratic "170 mL" Your strategy here will be to write a balanced chemical equation for this single replacement reaction use the molar volume of a gas at STP to find the number of moles of hydrogen gas present in that volume use the mole ratio that exists between sulfuric acid and hydrogen gas to find the number of moles of the former needed to produce that many moles of the latter use the sulfuric acid
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