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Amiraneli [1.4K]
3 years ago
12

Help people i really need this

Chemistry
1 answer:
denis-greek [22]3 years ago
5 0
Option “A” is the crest of the wave because it’s the maximum value of upward displacement within a cycle.
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Calculate the heat released when 25.0 grams of water freezes at 0 degree Celsius.
mafiozo [28]

Answer:

= 8350 joules

Solution and explanation:

  • The heat of fusion refers to the quantity of heat released when a given amount of water freezes.
  • For example, 1 g of water releases 334 J when it freezes at 0°C.

Therefore; For 25.0 g of water.

Heat released = Mass of water × heat of fusion

                        = 25 g × 334 J/g

                        = 8350 Joules

Hence, the amount of heat released when 25.0 g of water freezes at 0°C is 8350 J.

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3 years ago
The figure shows four forces exerted on a box.
lakkis [162]
F2 equals 10 N and F4 equals 2 N
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4 years ago
What problems do flooding and extreme weather cause?
mafiozo [28]

Answer:

Explanation:

Sometimes weather is extreme, causing destruction and death. Too much rain can cause flooding. Too much hot weather for long periods of time without any rain can cause drought. Huge storms with strong winds, such as hurricanes and tornadoes, can do a great amount of damage to buildings and crops.

<em>hope this helps you~</em>

4 0
3 years ago
Read 2 more answers
What best describes the goals of scientific investigation and technological development?
bekas [8.4K]
Hi! I think the answer is option B. I hope
this helps, Goodluck :)
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Which eletric configuration represents an atom of lithium in an excited state?
Naya [18.7K]

Answer:

2-0-1, 1-1-1, 0-1-2, but they must all equal 3 electrons in total

Explanation:

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3 years ago
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