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Darya [45]
3 years ago
13

A

Chemistry
1 answer:
fomenos3 years ago
7 0

Answer:

c Density

Explanation:

I don'tknow if I am right if I am wrong correct me

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Under certain conditions the rate of this reaction is zero order in dinitrogen monoxide with a rate constant of ·0.0047Ms−1: 2N2
leva [86]

Answer:

250 mmol are left after 26.60 secs ≅ 26.6 seconds

Explanation:

zero order kinetics formula is:

[A] = [A₀] - kt

where [A] = amount left; [A₀] = amount remaining; k = rate constant; t = time

concentration [A₀] = mole/volume = 0.5 mole/2.0L = 0.25

[A] = 0.25 mole/2.0L = 0.125 M

k = 0.0047 Ms⁻¹

t = {[A]-[A₀]}/-k = (0.125 - 0.25)/(-0.0047) = 26.60 seconds = 26.6 seconds

the amount is reduced by half after 26.6 seconds

6 0
3 years ago
What is the oxidation state of S in so ??​
Marina86 [1]

Answer:

+2

Explanation:

If a compound SO existed, we would identify the oxidation state of sulfur using the following logic:

  • oxygen is more electronegative than sulfur, so it's more electron-withdrawing and it should have a negative oxidation state producing a positive oxidation state for sulfur;
  • oxygen typically has an oxidation state of -2;
  • we may then apply the fact that SO is expected to be a molecule with a net charge of 0;
  • if the net charge is 0 and the oxidation state of oxygen is -2, we may set the oxidation state of S to x;
  • write the equation for the net charge of 0 by adding all individual charges of the two atoms: x + (-2) = 0;
  • hence, x = 2.

That said, in this hypothetical compound S would have an oxidation state of +2.

6 0
3 years ago
Which of the following statements about the sun's structure is true?
coldgirl [10]

Here is your answer:


The answer is option C "The sun's interior is similar to the Earth's; it has a core, mantle, and crust." Both Earth and the sun has a similar interior including a core, and the mantle but has a hotter surface.


Hope this helps!


<em>~Nonportrit</em>

4 0
4 years ago
Read 2 more answers
ASAP!
Andrei [34K]

Answer:

8.3334%

Explanation:

You have two masses. To find the percent of sodium chloride in water by mass, you divide the mass of NaCl by water. First, make both units the same. Easiest is to convert kg into g. 1.5kg = 1500g

125g NaCl/1500g H2O = 0.0833333333 ==> 8.3334%

5 0
3 years ago
If all organisms have DNA, is this an advantage or disadvantage.
ser-zykov [4K]

Answer:

well it depends what this is for but i could be an advantage for lets say research. If all living things have DNA we are able to experiment on them to find out certain things about human or prehistoric life.

Explanation:

3 0
3 years ago
Read 2 more answers
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