How many atoms of oxygen are in a glucose molecule w) 2 x) 6 y) 10 z) 12

How many atoms of oxygen are in a glucose molecule w) 2 x) 6 y) 10 z) 12
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ANSWER: X -- 6
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If the half-life of a radioisotope is 2 days, after how many days is the quantity reduced to 12.5% of its original amount? w) 4 days x) 6 days y) 8 days z) 10 days

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Which one of the following is largest? w) the number of molecules in 2 grams of hydrogen gas x) the number of molecules in 60 grams of lead sulfate y) the number of molecules in 20 liters of oxygen gas at standard temperature and pressure z) the population of the United States

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Which of the following elements would form a covalent bond with Bromine? w) Calcium x) Aluminum y) Oxygen z) Tin

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Which of the following has a multiple covalent bond? w) Bromine x) Hydrogen y) Oxygen z) Chlorine Monofluoride

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Last Answer : ANSWER: Y -- OXYGEN 

Dry ice is the solid form of what gas? w) nitrogen x) oxygen y) helium z) carbon dioxide

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Which of the following elements has the highest electronegativity? w) Lithium x) Iodine y) Cesium z) Oxygen

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Which of the following materials are used in the manufacture of pig iron from iron ore? w) Limestone and carbon x) Calcium oxide and oxygen y) Chromium and nickel z) Oxygen and sulfur dioxide

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Which of the following are alloying materials used the manufacture of stainless steel? w) Limestone and carbon x) Calcium oxide and oxygen y) Oxygen and sulfur dioxide z) Chromium and nickel

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Which of the following metals is LEAST reactive toward atmospheric oxygen? w) Lead x) Copper y) Iron z) Aluminum

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Last Answer : ANSWER: X -- COPPER