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shusha [124]
2 years ago
12

How much energy is required to completely melt a 250 gram ice cube that is already at 0 degrees Celsius? Show your work & un

its. Expected Answer = 83,500 J

Chemistry
1 answer:
patriot [66]2 years ago
7 0

Answer:

Q = 83500J

Explanation:

Q = L_{ice} *m

L_{ice} = 3.34*10^{5} \frac{J}{kg}

m = 250g = 0.25kg

Q = (3.34*10^{5} \frac{J}{kg})*(0.25kg)

Q = 83500J

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A flame in a sealed container will go out. Explain what you know about combustion reactions to explain why.
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Answer:

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Is the bond type of PCl3 polar or nonpolar?
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6 0
3 years ago
a 15.0 kg chunk of ice falls off the top of an iceberg if the chunk of ice Falls 8.00 to the surface of the water what is the ki
kvv77 [185]
When we can get the Kinetic energy from this formula KE= 1/2 M V^2and we can get the potential energy from this formula PE =  M g H
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1/2 MV^2 = M g H
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8 0
3 years ago
The element vanadium is a solid at room temperature, and its density is 6110 kilograms per meter cubed. Its melting point is 191
Dimas [21]

The question is incomplete, the complete question is;

the element vanadium is a solid at room temperature, and its density is 6110 kilograms per meter cubed. its melting point is 1910 degrees celsius.” which correctly evaluates the statement? not reliable because opinions are presented, reliable because testable facts are presented, not reliable because it is very brief ,reliable because metric units are used

Answer:

reliable because testable facts are presented

Explanation:

Science is a body of knowledge that deals with testable facts. Science is highly empirical and any superstitious proposition is quickly discarded as nonsense.

The statement, ''The element vanadium is a solid at room temperature, and its density is 6110 kilograms per meter cubed. Its melting point is 1910 degrees Celsius" presents facts that can be verified by laboratory investigation.

Hence we can conclude that the given statement is reliable because it contains testable facts.

6 0
3 years ago
Read 2 more answers
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