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Bingel [31]
3 years ago
6

Which of the following solar phenomena is thought to cause short-term climate changes

Chemistry
2 answers:
Ulleksa [173]3 years ago
4 0
<span>sunspots, hope this helps!!!!</span>
Nitella [24]3 years ago
3 0
Sunspots is the final answer! :)
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Moraines left by glaciers are different from deposits left by rivers because the rocks left behind are _____.
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Explanation:

unorganized and unsorted i think this is the answer

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3 years ago
Which types of reactions would result in the production of gas?
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farts

Explanation:

5 0
3 years ago
What is the symbol for the carbon isotope with seven neutrons?
Tresset [83]
Carbon -13 has 7 neutrons and carbon -12 has six neutrons. Carbon -12 is the most common isotope of Carbon. Carbon -14 is radioactive and vary rare. The symbols for the isotopes of Carbon atoms shown here indicate they each have six protons but mass numbers of 14, 13, and 12. Hope this helps. :)
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Identify whether the following example is qualitative or quantitative data.
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8 0
3 years ago
A sample of a compound of xenon and fluorine contains molecules of a single type; XeFn, where n is a whole number. If 5.0 x 1020
kicyunya [14]

Answer:

4

Explanation:

Avogadro’s number represent the number of the constituent particles which are present in one mole of the substance. It is named after scientist Amedeo Avogadro and is denoted by N_0.

Also, it is the number of particles in exactly 12.000 g of isotope carbon 12.

Avogadro constant:-

N_a=6.023\times 10^{23}

Hence,

Mass of XeF_n = 131.293+ n18.998 g

So,

6.023\times 10^{23}  molecules have a mass of 131.293+ n18.998 g

Also,

1  molecules have a mass of \frac{(131.293+ n18.998)}{6.023\times 10^{23}} g

So,

5.0\times 10^{20}  molecules have a mass of \frac{(131.293+ n18.998)}{6.023\times 10^{23}}\times 5.0\times 10^{20} g

Also, given mass = 0.172 g

Thus,

\frac{(131.293+ n18.998)}{6.023\times 10^{23}}\times 5.0\times 10^{20}=0.172

\frac{18.998n+131.293}{1204.6}=0.172

18.998n+131.293=207.1912

n=\frac{75.8982}{18.998}=4

<u>Thus, value of n is 4.</u>

4 0
3 years ago
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