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sveta [45]
3 years ago
8

What properties of matter explain why the weight of an object on the moon is different than the weight of the same object on ear

th while density remains the same
Chemistry
1 answer:
algol133 years ago
4 0

Answer:

Gravity explains this.

Explanation:

Weights and mass are different terms .

Weight is defined as the force exerting on the surface due to the mass and gravity of acceleration.

W=m*g

Here mass is related to the density of the body. So as the density would be same mass woulnt vary.

Whereas the Gravity changes due to the property of the planet.

Gravity is different for different planets and hence moon and earth have two different values.

So the mass i.e density remains same on both planets but the g value always changes hence weight is different.

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Can somebody help and answer which ones are connected to each other. Correctly!
igor_vitrenko [27]

nuclear power--used to turn turbines...

fossil fuels--burned to provide energy that is....

renewable energy--energy that with come back after use

outlet--a device....

steam--nuclear reactors....

I'm not sure but I tried lol,lemme know if I'm wrong :D

3 0
3 years ago
Hydrofluoric acid, hf, has a ka of 6.8 × 10−4. what are [h3o+], [f−], and [oh−] in 0.710 m hf?
STALIN [3.7K]

Answer:

[H₃O⁺] = [F⁻] = 2.2 x 10⁻² M. & [OH⁻] = 4.55 x 10⁻¹³.

Explanation:

  • For a weak acid like HF, the dissociation of HF will be:

<em>HF + H₂O ⇄ H₃O⁺ + F⁻.</em>

[H₃O⁺] = [F⁻].

<em>∵ [H₃O⁺] = √Ka.C,</em>

Ka = 6.8 x 10⁻⁴, C = 0.710 M.

∴ [H₃O⁺] = √Ka.C = √(6.8 x 10⁻⁴)(0.710) = 2.197 x 10⁻² M ≅ 2.2 x 10⁻² M.

<em>∴ [H₃O⁺] = [F⁻] = 2.2 x 10⁻² M.</em>

<em></em>

∵ [H₃O⁺][OH⁻] = 10⁻¹⁴.

<em>∴ [OH⁻] = 10⁻¹⁴/[H₃O⁺]</em> = 10⁻¹⁴/(2.2 x 10⁻²) = <em>4.55 x 10⁻¹³.</em>

6 0
3 years ago
EXTRA CREDIT. The rate at which an object moves is its speed. If a horse
Irina18 [472]
Average speed is total distance divided by total time.

Total distance is 50 m + 150 m + 300 m = 500 m
Total time is 68 s + 35 s + 22 s = 125 s

Average speed is 500 m / 125 s = 4 m/s
6 0
3 years ago
HELP!!! WILL RECEIVE BRAINLIEST!!!!! What is the independent variable
ycow [4]
You kind of need to show more, but the independent variable would be something that you are changing to then measure the reaction, like the time left in for example.
3 0
3 years ago
Read 2 more answers
Prediction for Scandium (II) and Cl
Nimfa-mama [501]

Answer:

ScCl₂

General Formulas and Concepts:

<u>Chemistry</u>

  • Reading a Periodic Table
  • Reaction Prediction
  • Determining Chemical Compounds

Explanation:

<u>Step 1: Define</u>

Scandium (II)

Cl

<u>Step 2: Determine Charges</u>

Sc²⁺

Cl⁻

<u>Step 3: Predict Compound</u>

<em>We need to balance out the charges so the overall charge is 0.</em>

ScCl₂

<u>Step 4: Reaction</u>

RxN:   Sc²⁺ + Cl₂ → ScCl₂

3 0
3 years ago
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