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bonufazy [111]
3 years ago
13

How do u find the volume of a sphere

Chemistry
1 answer:
Alex73 [517]3 years ago
5 0

Answer:

V=\frac{4}{3} \pi r^3

Explanation:

plug in the radius for r and the v doesn't matter

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Some properties of matter depend on how much matter there is. Put an X next to all of the statements you think are true about pr
ella [17]

Answer:

Its B and D :)

Explanation:

I saw the answer key.

3 0
3 years ago
Which best compares a homogeneous mixture and a heterogeneous mixture?
deff fn [24]

Answer is <u>D</u> - homogeneous mixture has the same throughout a while a heterogeneous  mixture is not a uniform throughout.                                                                                                                                                             Explanation: I hoped that helped.

7 0
3 years ago
A 1,900-m3 water tower has been cleaned with a chlorine solution. The vapors of chlorine in the tower exceed allowable concentra
yaroslaw [1]

Answer:

t = 1862 s

Explanation:

To do this, we need first to determine the theorical detention time, which can be determined with the following expression:

t₀ = ∀/Q  (1)

Where:

t₀: detention time

∀: Volume of the fluid in the reactor

Q: Flow rate in the reactor

With this time, we must use the following expression to determine the time that the workers will take to vent the tank:

C = C₀ e^(-t/t₀)   (2)

From here, we must solve for time t, and the expression will be:

t = ln(C₀/C) * t₀   (3)

Now that we know the expression to use, let's solve for t. Using (1) to determine the detention time, ∀ is 1900 m³, and Q is 2.35 m³/s so:

t₀ = 1900 / 2.35 = 808.51 s

Now, let's solve for the time t. C will be 0.0015 mg/L (or 1.5 mg/m³ cause in 1 m³ we have 1000 L) and C₀ 15 mg/m³:

t = ln(15/1.5) * 808.51

<h2>t = 1861.66 s or simply 1862 s</h2><h2></h2>

Hope this helps

6 0
3 years ago
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Answer:

I thought that we were made to be she's my ex to see by God that we where he he

8 0
3 years ago
Which of the following would have a fixed shape and volume? (3 points) nitrogen gas solid wood liquid water neon gas
Dafna1 [17]

Answer:

Solid Wood

Explanation:

Wood is like a solid block, whereas gases flow freely and liquids spread to fill the shape of their container.

Please let me know if I misunderstood the question, by the way.

6 0
4 years ago
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