Help please Cu + S CuS

Chemistry

1 answer:

SCORPION-xisa [38]3 years ago

6 0

Answer:

Hi.. U should do like this

Cu + S - - - >Cu2S

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If the mass of the products of a chemical reaction was 100 g, what was

Rzqust [24]

If the mass of all of the products in a chemical reaction is equal to 100g then the mass of the reactants in that same reaction had to have had a mass of 100g this is due to the law of conservation of matter stating matter cannot be created or destroyed in a chemical reaction.

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3 years ago

How many grams of potassium nitrate (KNO3) are required to prepare 0.250L of a 0.700 M

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Answer:

17.78g

Explanation:

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podryga [215]

<u>Answer:</u> The correct answer is standard reduction potential

<u>Explanation:</u>

Oxidation reaction is defined as the reaction in which an atom looses its electrons. The oxidation number of the atom gets increased during this reaction.

$X\rightarrow X^{n+}+ne^-$

Reduction reaction is defined as the reaction in which an atom gains electrons. The oxidation number of the atom gets reduced during this reaction.

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