4 years ago

What is the relationship or trend between the distance between the paper clips and the speed your fingers are moving?

Chemistry

1 answer:

Ne4ueva [31]4 years ago

6 0

So nobody has the answer? Wow

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What is the meaning of weight?

Lostsunrise [7]

Weight is properly defined as how much gravity acts upon an object.
I hope this helps!

4 0

3 years ago

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The temperature of a 500 ml sample of gas increases from 150 k to 300 k. what is the final volume of the sample of gas, if the p

seropon [69]

Upon a constant pressure (P), volume (V) of a gas will vary in direct proportion to changes in temperature (T). So V1/T1 = V2/T2
V2 = V1T2/T1 = (500)(300)/150
V2 = 150000/150 = 1000 mL

5 0

3 years ago

The ester of honey and the test

muminat

Answer:

I don't get the question

4 0

3 years ago

Which of the substances in the chart has the least density?

3241004551 [841]

Answer:
Option-D (Piece of Wood) is the correct answer.

Explanation:
Density is related to mass and volume as,

Density = Mass / Volume
For Wood,
Density = 42.5 / 50

Density = 0.85

You can calculate remaining densities by yourself. Among all the density of Piece of Wood is the least.

3 0

3 years ago

In an oxidation-reduction reaction, 0.0450 mol of aqueous FeSO4 (source of Fe2+) reacts completely with 120.0 mL of an acidified

igor_vitrenko [27]

Answer:

0.075 M

Explanation:

5Fe²⁺(aq) + MnO₄⁻(aq) + 8H⁺(aq) → 5Fe³⁺(aq) + Mn²⁺(aq) + 4H₂O(ℓ)

Using the moles of Fe²⁺ that reacted, we can <em>calculate the reacting moles of MnO₄⁻</em>:

0.0450 mol Fe⁺² * $\frac{1molMnO_{4}^{-}}{5molFe^{+2}}$ = 0.0090 mol MnO₄⁻

Now we divide the moles of MnO₄⁻ by the volume in order to <u>calculate the molarity of the solution</u>, keeping in mind that 120.0 mL = 0.120 L.

0.0090 mol MnO₄⁻ / 0.120 L = 0.075 M

7 0

4 years ago

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