y varies directly as the square root of x. When x = 16, y = 12 What is the equation that relates the quantities?   Question 8 options:   y = 4√x   y = (4/3) √x   y = 3√x

olo 6 A major component of gasoline is octane (C,H,). When liquid octane is burned in air it reacts with oxygen (0,) gas to produce carbon dioxide gas and water vapor. Calculate the moles of water produced by the reaction of 1.1 mol of octane. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. OLX

ce started, ne: 57 minutes, 35 seconds. Completion Status: A Moving to another question will save this response. Question 16 Magnesium reacts with hydrochloric acid to produce magnesium chloride and hydrogen gas: Mg(s) + 2 HCl(aq) MgCl2(aq) + H2(g) Suppose you need hydrogen to fill a balloon and you have 0.800 mol of magnesium and 2.00 moles of hydrochloric acid. How much hydrogen can you generate if the above reaction goes to completion? 6.00 moles 2.00 moles 0.400 moles 4.00 moles 0.800 moles 1.00 mole 6:38 PM 3/26/2020 P Type here to search hp end home ins prt sc delete (12 f9 144 f8 f7 f6 num f5 backspace lock & L. 8. {' pause

Ammonium phosphate ((NH,) PO,) is an important ingredient in many solid fertilizers. It can be made by reacting aqueous phosphoric acid (H,PO,) with liquid ammonia. Calculate the moles of ammonia needed to produce 0.085 mol of ammonium phosphate. Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits. olo 4

lculation questions require you to enter a numerical answer. You should not include units in your reported an ough you should note them in your calculations. Unless the problem specifically ask for an answer in the pro significant figures, it is often in your best interest to enter as many digits as your calculator will give you. 1 Question 1 Given the unbalanced chemical equation, C5H12(1) + O2(g) → CO(g) + H20(1), which one of the following correctly expresses the mole ratio between CO and oxygen? 5 mole CO/11 mole O2 O 1 mole CO/1 mole O2 O 10 mole CO/11 mole O2 O 10 mole CO/6.5 mole O2 Question 2

Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction in which water  H2O  and carbon dioxide  CO2  chemically react to form the simple sugar glucose  C6H12O6  and oxygen gas  O2 . What mass of oxygen gas is produced by the reaction of  6.6g  of carbon dioxide?   Be sure your answer has the correct number of significant digits.

Acetylene  C2H2  gas is often used in welding torches because of the very high heat produced when it reacts with oxygen  O2  gas, producing carbon dioxide gas and water vapor. Calculate the moles of oxygen needed to produce  0.080mol  of carbon dioxide. Be sure your answer has a unit symbol, if necessary, and round it to  2  significant digits.

Gaseous ethane CH3CH3 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O . If 38.5g of carbon dioxide is produced from the reaction of 25.26g of ethane and 181.6g of oxygen gas, calculate the percent yield of carbon dioxide. Be sure your answer has the correct number of significant digits in it.

Wine goes bad soon after opening because the ethanol (CH,CH,OH) in it reacts with oxygen gas (0,) from the air to form water (H,O) and acetic acid (CH;COOH), the main ingredient of vinegar. What mass of water is produced by the reaction of 2.70 g of ethanol? Be sure your answer has the correct number of significant digits.

Acetylene (C₂H₂) gas is often used in welding torches because of the very high heat produced when it reacts with oxygen gas, producing carbon dioxide gas and water vapor. Calculate the moles of acetylene needed to produce 0.075 mol of carbon dioxide. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. 0 010 X x10