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Leya [2.2K]
3 years ago
15

Compounds are pure substances. What other substances are considered pure substances?

Chemistry
1 answer:
dimaraw [331]3 years ago
6 0

Answer:

um... hydrogen gas

gold metal

sugar (sucrose)

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Within the nuclear us of individual Adams of the same element, the proton number
AnnyKZ [126]

the same

Explanation:

Within the nucleus of individual atoms of the same element, the proton number is the same.

All atoms of the same kind from the same element have the same number of protons.

The number of protons does not change, it remains fixed after a chemical reaction.

Different elements have different number of protons that typifies and makes them unique.

But atoms of the same element have the same number of protons in them.

learn more;

Atomic number brainly.com/question/5425825

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3 years ago
The unbalanced equation below shows the combustion of methane.
Ratling [72]
B. 1, 2, 1, 2. You balance the equation by making sure there are equal elements on both sides.
3 0
2 years ago
A sample of argon gas has a volume of 73 mL at a pressure of 1.20 atm and a temperature of 112 degrees Celsius. What is the fina
NeX [460]

Answer:

V₂ → 106.6 mL

Explanation:

We apply the Ideal Gases Law to solve the problem. For the two situations:

P . V = n . R . T

Moles are still the same so → P. V / R. T = n

As R is a constant, the formula to solve this is: P . V / T

P₁ . V₁ / T₁ = P₂ .V₂ / T₂   Let's replace data:

(1.20 atm . 73mL) / 112°C = (0.55 atm . V₂) / 75°C

((87.6 mL.atm) / 112°C) . 75°C = 0.55 atm . V₂

58.66 mL.atm = 0.55 atm . V₂

58.66 mL.atm / 0.55 atm = V₂ → 106.6 mL

3 0
3 years ago
What are the components of the formula for finding force?
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<span>The force of a system can be measured by formula P=mf where P is the force, m is the mass of the system and f is the acceleration of the system. The formula is known as Newton's second law of motion.</span>
3 0
3 years ago
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What ion is oxygen likely to form?
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It's most natural state has a charge of -2. So, a negative ion with two more electrons than is normal.
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3 years ago
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