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- 2. ^ OH OHE:OH BI E:ONA Br E:ONA ....3 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 molecule has a mass of 4.65 x 10^-23 g. Provide twopossible chemical formulas for such a molecule.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?
- At 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 26.07Assuming 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 = gJ 1. NaOH 2. CH3CH₂COCI 1. Br₂, NaOH 2. H¹, H₂O H + I