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kupik [55]
3 years ago
12

Discuss the different observations that you would record during an investigation into the energy transformations of a lamp that

uses electrical energy
Chemistry
1 answer:
densk [106]3 years ago
4 0

Discuss the different observations that you would record during an investigation into the energy transformations of a lamp that uses electrical energy.

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Answer:

iodine.

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Which reaction below represents a balanced, double replacement chemical reaction? A) C2H5OH + 3O2 → 2CO2 + 3H2O B) Rb2O + Cu(C2H
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How does a catalyst increase the rate of a chemical reaction?
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What is the reaction energy q of this reaction? use c2=931.5mev/u. express your answer in millions of electron volts to three si
Ann [662]
₉₂U²³⁵ + ₀n¹ → ₅₄Xe¹⁴⁰ + ₃₈Sr⁹⁴ + 2 ₀n¹
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2 years ago
Consider the reaction: HCN (aq) + H2O (l) ⇄ CN- (aq) + H3O + (aq) Which of the following statements will decrease the amount of
alekssr [168]

Answer: Option (b) is the correct answer.

Explanation:

The given chemical reaction shows that hydrogen cyanide acid has been added to water which results in the formation of hydronium ion and cyanide ion.

Also, when we add a base like sodium hydroxide (NaOH) to HCN then it will help in accepting a proton (H^{+}) from hydrogen cyanide. As a result, formation of CN^{-} anion will be rapid and easy.

This will make the system not to do any extra work. So, amount of work done by system will decrease.

Thus, we can conclude that out of the given options, add solid NaOH to the reaction (assume no volume change) will decrease the amount of work the system could perform.

4 0
3 years ago
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