3 years ago

Is Oxygen - O2 a pure substance or a mixture?

1 answer:

5 0

Oxygen is a pure substance, as it is composed of only a single kind of atom. Which is the oxygen atom, it cannot be broken or degraded down any further into constituents that make up the element. In terms of both chemically and physically.

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What is the formula of the ion formed when tin achieves a stable electron configuration?

Katarina [22]

Answer:

Option D which is Sn4- is the answer

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3 years ago

I need some help please

Norma-Jean [14]

Answer:

the first one to the third box

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Explanation:

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3 years ago

Why is copper a pure substance? a. because it is an element b. because it is a compund c. because it is a homogenous mixture

Step2247 [10]

Answer:

a. because it is an element

Explanation:

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2 years ago

Which field of science studies the composition and structure of matter

aleksandrvk [35]

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3 years ago

An organic synthesis to make the pain reliever acetaminophen is supposed to produce 280 kg of product but instead produces 70 kg

Irina-Kira [14]

Answer: 75%

Explanation:

The following information can be gotten from the question:

Waste = 70kg

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Therefore, the actual yield will be the difference between the theoretical yield and the waste which will be:

= 280kg - 70kg = 210kg

The percent yield will now be:

= Actual yield / Theoretical yield × 100

= 210/280 × 100

= 3/4 × 100

= 75%

4 0

3 years ago