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- 2. ^ OH OHI. Name the two organic compounds. Br OH B. CH,O OH GH,0.- ¢ =ċ- c -ċ-ċ-B. is O =¢ si Br Catla Ç =03 AGNO, + K,PO, --> Ag.PO, + 3KNO, Describe what is happening Reactants combine into a large one Reactant breaks apart into smaller molecules O A pure element swaps places with an element in a compound elements from two different compounds switch place O a hydrocarbon reacts with oxygen to form carbon dioxide and water
- One millimeter of water contains about 20 drops. One gram of water contains 3.34x10^22 molecules of water. The density of water is 1.00 g/mL. How many molecules of water are there in 1 drop?A certain alloy with a density of 11.5 g/cm3 contains 55% iron by mass. a) How many pg of iron would be present in a 4.5"x5.0"x11" piece of alloy?A molecule has a mass of 4.65 x 10^-23 g. Provide twopossible chemical formulas for such a molecule.
- 3a. Another student performed the same percent composition of a hydrate experiment, but kent the crucible completely covered throughout the entire experiment. What effect would this have on the experiment? Cor 3b. Would the student's calculated percent water in the hydrate be high, low, or unaffected? Explain why or why not.Assuming gasoline to be pure 2-methylhexane, C7 H16 (actually, it is a mixture of many substances), an automobile getting 26.5 miles per gallon would consume 5.96 x 1023 molecules per mile. Calculate the mass of this amount of fuel. Mass = gAt 25°C methanol (CH4O) has a density of ~0.792 g/mL. If a reaction requires the chemist to use 644.50 moles of methanol, what volume will be required (in liters)? Use these atomic masses: C = 12.011 amu; H = 1.008 amu; O = 15.999 amu. Not these answers 26 0.004 0.009 26.07