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charle [14.2K]
3 years ago
15

What processes formed a watefall

Chemistry
1 answer:
kolezko [41]3 years ago
4 0

Answer:

waterfall form as streams flow from soft rock to hard rock.

Explanation:

I hope that help

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Only oppositely charged objects can attract each other. true false
Delicious77 [7]
No as neutral object will attract and be attracted by a positive and negative charge 

hope that helps 
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How do you balance this chemical equation
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<span>Because you've added coefficients to the molecules on the right side of the equation, the number of oxygen atoms has changed.</span>
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Ty for anyone helping!
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23. Enzyme A, as the temperature increases, the rate of reaction goes down. However, Enzyme B as the temperature goes up the reaction goes up.

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6 0
3 years ago
What will be the end product for each electrode after electrolysis if the solution is concentrated aqueous sodium chloride ?​
Eddi Din [679]

Answer:

Cathode: Hydrogen gas

Anode: Chlorine gas

Explanation:

① Write down the ions present in the electrolyte

Cations: Na⁺, H⁺

Anions: Cl⁻ , OH⁻

② Decide which ions are preferentially discharged.

These are the factors:

For the discharge of cations,

- Reactivity series

(The lower the position of the cation in the reactivity series, the easier it is to be discharged)

For the discharge of anions,

- Concentration effect (look at this first)

(The more concentrated the ion, the easier for it to be discharged)

- If solution is not concentrated (dilute), look at the position of the anion on the electrochemical series.

(The lower the position of the anion on the electrochemical series, the easier of it to be discharged)

In this case:

For cations, H⁺ ions are selectively discharged at the cathode as its position is lower than Na⁺ in the reactivity series.

Anion: Cl⁻ ions, being more concentrated, are selectively discharged at the anode.

☆For electrolysis,

Cation at the cathode (-ve terminal)

Anion at the anode (+ve terminal)

In summary, here's what happened at each electrode:

<u>C</u><u>athode</u>

- H⁺ selectively discharged

- ionic half equation: 2H⁺ (aq) +2e⁻ → H₂ (g)

<u>Anode</u>

- Cl⁻ ions selectively discharged

- ionic half equation: 2Cl⁻ (aq) → Cl₂ (g) + 2e⁻

3 0
3 years ago
1. Have scientists been able to invent a perpetual motion machine?<br> O Yes<br> O No
FromTheMoon [43]
After using my big brain it’s No
3 0
2 years ago
Read 2 more answers
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