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Vinvika [58]
1 year ago
11

Indicate if each state below is either True or False: a. If a substance is oxidized, it gains electrons b. If an ion is oxidized

, its oxidation number increases c. Oxidation can occur without oxygen d. Oxidation can occur without reduction
Chemistry
1 answer:
myrzilka [38]1 year ago
3 0

Answer:

a. False

b. True

c. False

d. True

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16.25 g of water at 54 C relaeases 402.7 J. What will be its final temp?
leonid [27]
Data:
Q = 402.7 J → releases → Q = - 402.7 J
m = 16.25 g
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Solving:

Q = m*c*ΔT
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\Delta\:T =  \frac{-402.7}{67.99}
\boxed{\Delta\:T \approx -5.92\:^0C}

If: ΔT (T final - T initial) = ?
-5.92^0 =  T_{final} -  54^0
T_{final} = 54^0 - 5.92^0
\boxed{\boxed{T_{final} = 48.08\:^0C}}\end{array}}\qquad\quad\checkmark

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