Why is soap mixed with water? A. The soap becomes chemically active when mixed with water.
B. The soap turns the water molecules into a nonpolar solvent.
C. It covalently bonds to the water so it can be washed away.
D. Its polar end mixes with the water so it can be washed away.

its polar end mixes with the water so it can be washed away

Explanation:

just did the tests

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489.88 was the initial temperature of the zinc.

Explanation:

Given :

mass of zinc = 7.5 grams

mass of water = 65 grams

specific heat = 0.390J/g°C

specific heat of water = 4.184 J/g°C

initial temperature of water = 20 degrees

Final temperature of zinc and water will be same as zinc is dissolved in water thus T2zinc and T2 water = 25 degrees

ΔTzinc = change in temperature T2 - T1

initial temperature of zinc =?

The formula used is

q = mcΔT for both water and zinc

putting the values for zinc and water in the formula:

mzinc x czinc x T2 zinc - T1 zinc = mwater x c water x T2 water- T 1 water

7.5 x 0.390 x ΔT zinc = -(65 x 4.184 x (25-20)

2.925 x  ΔT zinc  = -1359.8

ΔT zinc  = - 464.88 degrees

Now,

ΔT zinc = T2 zinc - T1 zinc

T1 zinc = - 464.88-20

=489.88 degrees

489.88 degrees is the initial temperature of the zinc.