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Soloha48 [4]
3 years ago
6

Please help with chemistry ASAP!

Chemistry
1 answer:
iren [92.7K]3 years ago
6 0
Carbon


Have a nice day
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Where is most of the high-level waste stored in the United States
Anna007 [38]

The correct answer is number 5) at the nuclear reactor site.

Most of the high-level waste stored in the United States is at the nuclear reactor site.

Just people who specialize in the radioactive waste can handle this risky procedure because high-level radioactive waste needs treatment by the experts to truly isolated from the biosphere. Radioactive plants keep the waste deep underground because nobody wants another accident like the one that happened in Chernobyl on April 26, 1986.

The other options of the question were 1) the ocean. 2) mountain peaks. 3) volcanic fissures. 4) salt mines.

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If 14.5kj of heat were added to 485g of liquid water, how much would its temp increase
OlgaM077 [116]
<span>7.15 degrees C The specific heat capacity of water is 4.1813 J/(g*K). So we have 3 values with the units kJ, g and J/(g*K). We can trivially convert from kJ to J by multiplying by 1000. And we want to get a result with the unit K (degrees Kelvin). So let's do it. First, let's cancel out the g unit by multiplying. 4.1813 J/(g*K) * 485 g = 2027.9305 J/K Now we can cancel out the J unit by dividing. But if we divide by the energy, we'll be left with the reciprocal of K, not K. So instead divide by the J/K unit. So 14500 J / 2027.9305 J/K = 7.150146418 K Rounding to 3 significant figures gives us 7.15 K. And since degrees C and degrees K are the same size, the temperature will increase by 7.15 degrees C</span>
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3 years ago
I will give Brainliest and 30 points to whoever answers first!
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7 0
3 years ago
What happens to the ancient calendar during the winter and summer solstices
iris [78.8K]

During the winter solstices, we experience the longest day and the shortest night while during the summer solstices the sun is at its highest point in the sky.

<h3>What is the Solsticest?</h3>

The Solstices is the season that occurs at the moment the earth's tilt toward or from the sun is at a maximum. There are two seasons of Solstices which include the following:

  • The winter solstices: This occurs when the sun is directly over the Tropic of Capricorn causing us to have the shortest day and longest night of the year.

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Learn more about solstices here:

brainly.com/question/25859051

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2 years ago
Its atoms contain 3 protons and 4 neutron(s).<br> Express your answer as an isotope.
velikii [3]

Answer: A=7 for the isotope with 4 neutrons.

Explanation:A lithium atom contains 3 protons in its nucleus. Notice that because the lithium atom always has 3 protons, the atomic number for lithium is always Z = 3. The mass number, however, is A = 6 for the isotope with 3 neutrons, and A = 7 for the isotope with 4 neutrons.

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3 years ago
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