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Dimas [21]
3 years ago
6

PLEASE HELP ME!

Chemistry
1 answer:
n200080 [17]3 years ago
5 0

Answer:

"Calculate" (and any subsequent words) was ignored because we limit queries to 32 words.

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Hope this helps! Please correct me if I'm wrong :)

6 0
3 years ago
A 2,000g of C-14 is left to decay radioactively. The half-life of Carbon-14 is approximately 5,700 years. What percentage of the
dsp73
Answer is: 12,6% (1/8) <span>percentage of the sample will remain.
</span>c₀ - initial amount of C-14.<span>
c - amount of C-14 remaining at time.
t = 5700</span> y.<span>
First calculate the radioactive decay rate constant λ:
λ = 0,693 ÷ t = 0,693 ÷ 5700</span> y = 0,000121 1/y = 1,21·10⁻⁴ y.
c = c₀·e∧-λ·t.
c = 2000 · e∧-(0,000121 1/y · 17100 y).
c = 252 g.
ω = 252 g ÷ 2000 g = 0,126 = 12,6%.
<span>

</span>
4 0
3 years ago
Read 2 more answers
How does water quality affect other aspects of nature?
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Poor water quality has its most direct impact on aquatic wildlife. Such as fish, bugs, and plants
6 0
3 years ago
Two substances with empirical formula HNO are hyponitrous acid (M = 62.04 g/mol) and nitroxyl (M = 31.02 g/mol).(d) When hyponit
astra-53 [7]

The cis and Trans-forms of hyponitrous acid are given below in the attached document.

Hyponitrous acid has the chemical formula H2N2O2 or HON=NOH. 62.028 g/mol is the molecular weight of it. Additionally, it can take either a trans or cis form. When dry, the trans-hyponitrous acid crystallizes into white, explosive particles. Additionally, it has a half-life of 16 days at 25oC at a pH 1-3 in aqueous solution and is a weak acid (pKa1=7.21, pKa2=11.54). It decomposes into nitrous oxide and water. It is incorrect to think of N2O as the anhydride of H2N2O2. However, even though cis acid is unknown, we can still get its sodium salts.

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brainly.com/question/21437871

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5 0
2 years ago
What is the formula units for sodium sulfide, sodium sulfite, anf sodium sulfate?​
elena-14-01-66 [18.8K]

Answer:

Look them up.

Explanation:

sulphate is SO4 (2-)

Sufide is S(-1)

Sulfite - look it up - there are several more right there you may need.

3 0
3 years ago
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