Complete combustion of a 0.70-mol sample of a hydrocarbon, CxHy, gives 2.80 mol of CO2 and 3.50 mol of H2O. The molecular formula of the original hydrocarbon is

“Say that the average worker in Canada has productivity of $30 per hour while the average worker in the United Kingdom has productivity of $28.50 per hour (both measured in U.S. dollars). Over the next six years, say that worker productivity in Canada grows at 1% per year while worker productivity in the UK grows 3% per year. At that point, who will have the higher productivity level, and by how much?”

“How do economists measure GDP? Specifically, what is the formula used? Define each part of the formula.”

 ________ satellites require only low-power transmitters.

Cyclical unemployment is a short-term problem. What is its root cause? What is the preferred solution and how can this be accomplished?

A welder who quits her job and moves from Pittsburgh to Madison to try to get a better welding job is said to be

Bitcoin is a type of digital currency in which encryption techniques are used to regulate the generation of units of currency and verify the transfer of funds; they are ________, which means ________.

How many moles of sodium bromide can be produced from the reaction of 1.03 moles of sodium with 0.650 moles of bromine gas? 2 Na(s) + Br2(g) → 2 NaBr(s)

If 25.0 mL of 0.100 M HCl is titrated with 0.150 M Ba(OH)2, what volume of barium hydroxide is required to neutralize the acid? 2 HCl(aq) + Ba(OH)2(aq) → BaCl2(aq) + 2 H2O(l)

2 Al(s) + 6 HCl(aq)  →  2 AlCl3(aq) + 3 H2(g) According to the equation above, what mass of aluminum is needed to completely react with 2.98 mol of hydrochloric acid?