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How do I solve the following questions (Step by Step) (1). Calculate the heat required to...

How do I solve the following questions (Step by Step)

(1). Calculate the heat required to convert 10.0 g of ice at 0.0 °C to steam at 100.0 °C. The specific heat of water is 1.00 cal/(g x °C); the heat of fusion is 80.0 cal/g; and the heat of vaporization is 540.0 cal/g.

(2). What is the molar mass of trinitrotoluene (TNT), C7H5N3O6

(3). What is the percentage of water in NiCl2 2H2O?

(4).   Shapes of the following molecules (CH4, H2O, NH3, CO2)

(5). Which of the following anions is isoelectronic with a

bromide ion

nitride ion

sulfide ion

all of the above

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Answer #1

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