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frosja888 [35]
3 years ago
11

Please solve number 5!! I’ll mark most brainliest!

Chemistry
2 answers:
sweet-ann [11.9K]3 years ago
7 0
D. 5.25 ml
Jejsjsnxnnsnsbdbbdbdbd
wel3 years ago
6 0

Answer: 5.248

Explanation: 0.53/0.1010 = 5.24752475248, and round to the thousandths.

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The human eye cannot see anything less than 40 micrometers in size. What is this length in meters?
Agata [3.3K]

Answer:

4e-5 is the length in meters

Have a nice day! :)

6 0
2 years ago
The equilibrium constant, Kc, for the following reaction is 56.0 at 278 K. 2CH2Cl2(g) CH4(g) + CCl4(g) When a sufficiently large
BabaBlast [244]

Answer:

  • <u>21.5 M</u>

Explanation:

<u>1) Equilibrium equation (given):</u>

  • 2CH₂Cl₂ (g) ⇄ CH₄ (g) + CCl₄ (g)

<u>2) Write the concentration changes when some concentration, A, of CH₂Cl₂ (g) sample is introduced into an evacuated (empty) vessel:</u>

  • 2CH₂Cl₂ (g) ⇄ CH₄ (g) + CCl₄ (g)

           A - x                 x              x

<u>3) Replace x with the known (found) equilibrium concentraion of CCl₄ (g) of 0.348 M</u>

  • 2CH₂Cl₂ (g)   ⇄ CH₄ (g) + CCl₄ (g)

          A - 0.3485       0.348       0.348

<u>4) Write the equilibrium constant equation, replace the known values and solve for the unknown (A):</u>

  • Kc = [ CH₄ (g) ] [ CCl₄ (g) ] / [ CH₂Cl₂ (g) ]²

  • 56.0 = 0.348² / A²

  • A² = 56.0 / 0.348² = 462.

  • A = 21.5 M ← answer

7 0
2 years ago
A force of 100 newtons is applied to a box at an angle of 36º with the horizontal. If the mass of the box is 25 kilograms, what
notka56 [123]

Answer:

a_x=4.944m/s^2

Explanation:

Hello,

Based on the acting force that is applied horizontally, one can propose the following equation based on Newton's laws:

F=ma

Nevertheless, since we've got a angled force, it becomes:

F=macos\theta

In this case, cos\theta accounts for the formed angle, so the horizontal acceleration turns out into:

a_x=\frac{F}{mcos\theta}=\frac{100kg*\frac{m}{s^2} }{25kgcos(36^0)}=4.944m/s^2

Best regads.

5 0
3 years ago
True or false? Second level consumers may be carnivore or omnivores
const2013 [10]
Yes this is true because they are able to consume 2 organisms which are plants and animal just like us.
3 0
2 years ago
How many atoms are in 1.50 moles of fluorine gas
evablogger [386]
1.8x10^24 atoms is How many atoms are in 1.50 moles of fluorine gas
8 0
3 years ago
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