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Alja [10]
4 years ago
12

A pure substance has a/an _______ composition.

Biology
2 answers:
horrorfan [7]4 years ago
6 0

Answer:

1. A pure substance has a  definite constant composition.

2. A compound is composed of two or more types of matter that can be present in varying amounts.

3. A solution is a homogeneous mixture.

4. A mixture that is not uniform throughout is a Heterogeneous mixture

5. A pure substance that cannot be broken down chemically is a element.

6. A characteristic of matter that’s not associated with a change in its chemical composition is known as a physical property.

7. Wax melting is an example of a physical change in the state of matter.

8. A banana peel turning brown is an example of a chemical change in the state of matter.

Degger [83]4 years ago
3 0

Answer:

constant

mixture

homogeneous

heterogeneous

element

physical

physical

chemical

Explanation:

A good answer should contain the following:

got this from penn foster

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Answer:

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Explanation:

Cell respiration occurs in the mitochondria of eukaryotic cells and consists of a series of chemical reactions in which energy in the form of ATP molecules is obtained from a glucose molecule in the presence of oxygen.

<u>Glucose is the main energetic substrate</u> to be able to synthesize energy in the form of ATP, through oxidative phosphorylation. At the end of the process ATP is obtained as products, and as waste compounds water and carbon dioxide, which can be schematized in the following chemical reaction:

              <em>              C₆H₁₂O₆  +  6O₂ →  6H₂O  +  6CO₂ + ATP ↑</em>

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The other reactions:

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<em>do not represent the components or the order of the reactions that occur in aerobic cell respiration</em>

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