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suter [353]
3 years ago
7

42 At standard pressure, the total amount of heat required to completely vaporize a 100. gram sample of water at its boiling poi

nt is(1) 2.26 X 10 J (3) 2.26 X 103 J
(2) 2.26 X 102 J (4) 2.26 X 105 J
Chemistry
1 answer:
yan [13]3 years ago
4 0

Answer:

4 is the actual answer, the other answer can eat my ...

Explanation:

The answer is 100% legit answer choice 4 not 3!!!!!!

This is because the 2260 is 10^2 and then ^3 is increased when boiling a 100 gram

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Thomson's model included Protons and Electrons. His model is referred to as 'Plum Pudding' because of it.
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Help please need to find the frequency of the wave
Lapatulllka [165]
E=hf h=6.63*10^-34 f=8.66*10^14 E=6.63*10^-34*8.66*10^14=57.4*10^-20 joules
3 0
3 years ago
A graduated cylinder was filled with 25.0 mL of water. A solid object was immersed in the cylinder, raising the water level to 3
yawa3891 [41]

Answer:

Density of the object is 8759.494 grams/L

Explanation:

As we know density of an object is mass of the object divided by its volume

Given

Volume of the object is equal to the change in volume of water with in the cylinder when the object was immersed in water.

Hence, volume of object is equal to

32.9 -25 = 7.9 mL

Mass of the object is 69.2 grams

Density

= \frac{69.2}{7.9 *10^{-3}}\\= 8759.494 grams/L

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7 0
3 years ago
Simplify: <br>(100 m)/(26 s)
podryga [215]

100m/26s=50m/13s

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4 0
3 years ago
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If 2.5L of solution is diluted to prepare 1.7L of a 0.8M solution, what was the original concentration?
mamaluj [8]

Answer:

0.544 M

Explanation:

First find the moles in the final solution

0.8 mols/L *1.7L

1.36 mols

so there is 1.36 mols in 2.5L

concentration will be 1.36/2.5

0.544 M

5 0
2 years ago
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