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jok3333 [9.3K]
3 years ago
10

Explain in your own words what chemical change is

Chemistry
2 answers:
denis-greek [22]3 years ago
8 0

Answer:

A chemical change happens when one chemical substance is transformed into one or more different substances, such as when iron becomes rust.

Explanation:

Galina-37 [17]3 years ago
4 0

Answer: when one chemical substance is transformed into one or more different substances.

Explanation:

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K + S = K2S

Potassium reacts with sulfur to produce potassium sulfide

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How many moles of oxygen are present in 33.6l of the gas at 1atm and 0c
andreev551 [17]

The answer is: 1.5 moles of oxygen are present.

V(O₂) = 33.6 L; volume of oxygen.

p(O₂) = 1.0 atm; pressure of oxygen.

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3 years ago
Kromozom sayisini yariya inmesini amaci
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When lithium nitride, Li3N(s) , is treated with water, H2O(l) , ammonia, NH3(g) , is produced. Predict the formula of the gas pr
Ronch [10]

<u>Answer:</u> The gas produced when sodium phosphide reacts with water is phosphine.

<u>Explanation:</u>

When sodium phosphide reacts with water molecule, it leads to the production of flammable, poisonous gas known as phosphine along with the production of sodium hydroxide.

The chemical reaction for the reaction of sodium phosphide with water follows the equation:

Na_3P(aq.)+3H_2O(l)\rightarrow PH_3(g)+3NaOH(aq.)

By Stoichiometry of the reaction:

1 mole of sodium phosphide reacts with 3 moles of water to produce 1 mole of phosphine gas and 3 moles of sodium hydroxide.

Hence, the gas produced when sodium phosphide reacts with water is phosphine.

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