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Phoenix [80]
2 years ago
8

How many TOTAL atoms are contained in 10 molecules of TNT, C7H5N3O6?

Chemistry
1 answer:
nlexa [21]2 years ago
5 0
Answer:7 atom of carbon+5atom of hydrogen +3atom of nitrogen +6 atom of oxygen =21

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Which solutions is more basic: a solution with a pH of 9 or a solution<br> with a pH of 12?
Nuetrik [128]

Answer:

Explanation:

pH= 7 is neutral, pH<7 - acidic solutions,

pH>7 - basic solution.

The more value of pH, the more basic solution is.

So, the solution with pH = 12 is more basic.

5 0
1 year ago
Kidneys help regulate the concentration of which substance in the blood?
krek1111 [17]
Bicarbonate, sodium, potassium
are regulated by the kidneys.
3 0
3 years ago
Identify the statement that accurately describes ATP
Grace [21]

Answer:

Adenosine triphosphate

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Explanation:

3 0
2 years ago
What mass of H2SO4 is contained in 60.00 mL of a 5.85 M solution of sulfuric acid
strojnjashka [21]

First, we have to calculate the number of moles of H2SO4 in the solution:

V=60 mL = 0.06 L

c=5.85 mol/L

n=V×c=0.06×5.85=0.351 mol

Then we need to find the molar mass of H2SO4:

2×Ar(H) + Ar(S) + 4×Ar(O) =

=2 + 32 + 64 = 98 g/mol

Finally, we need to find the mass of H2SO4:

m=0.351 × 98 = 34.398 g

5 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
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