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mihalych1998 [28]
3 years ago
7

Substance is matter with a composition that is ?

Chemistry
1 answer:
STatiana [176]3 years ago
8 0

Answer:

A substance is a form of matter that will have a constant composition of evenly distributed products.

Explanation:

(Has to be the same everywhere)

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What volume of o2 is needed to react fully with 720. Ml of nh3
Galina-37 [17]

Ammonia undergoes combustion with oxygen to produce nitric oxide and water. The volume of the oxygen required to react with 720 ml of ammonia is 900 ml.

<h3>What is volume?</h3>

Volume is the area occupied by the substance and is the ratio of the mass to the density.

At STP, 1 mole of gas occupies 22.4 L of volume

Given,

Volume of ammonia reacted = 0.720 L

The combustion reaction is shown as,

\rm 4NH_{3} + 5O_{2} \rightarrow 4NO +6H_{2}O

From the stoichiometry of the reaction, it can be said that,

(4 \times  22.4) L of ammonia reacts with (5 \times  22.4) L of oxygen gas.

So, 0.720 L of  ammonia will react with:

\dfrac{ (5 \times  22.4)}{(4 \times  22.4)} \times 0.720 = 0.9 \;\rm L

Therefore, the volume of oxygen required is 900 mL.

Learn more about volume here:

brainly.com/question/14090111

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3 years ago
What conclusion can be drawn about the heat of vaporization of ethanol from the heating curve? A) The potential energy of the et
KATRIN_1 [288]

Answer  The ethanol is stabilized by strong intermolecular forces between the molecules.wer:

Explanation:

During the phase change represented by the heat of fusion the temperature does not change. The molecules in the liquid state has a higher degree of freedom but are stabilized by the strong hydrogen bonding requiring a larger into of energy to separate the molecules than the heat of fusion.

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Which of the following shows a chemical reaction in which hydrogen sulfide and oxygen are the reactants and sulfur and water are
Volgvan

Answer:

ok soo

Explanation:

first of all...that's not maths that looks like some type of alien language

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What elements are in the Same period as chlorine
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Choose two different particles found in the air. Explain how they are different and how they are the same
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Answer:

Dust and smoke.

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Dust and smoke are two different particles present in the air. Dust and smoke are different from one another due to their origin. Smoke formed from burning of materials while dust refers to the soil particles lifted by the wind due to their light weight. Dust and smoke are similar to each other due to their small in size, infinite number means uncountable and light weight.

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