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rodikova [14]
2 years ago
7

What is a mixture ? How do homogeneous & heterogeneous mixtures differ ?

Chemistry
1 answer:
Stella [2.4K]2 years ago
4 0

1st question: A mixture is when the components of a mixture can be easily separated and that the components each keep their original properties.

2nd question:A phase is any part of a sample that has a uniform composition and properties.By definition, a pure substance or a homogeneous mixture consists of a single phase. A heterogeneous mixture consists of two or more phases. When oil and water are combined, they do not mix evenly, but instead form two separate layers.

Heterogeneous mixtures are not uniform in composition. Examples would be wood or blood. Homogeneous mixtures are uniform through out. Typically you can see through them.

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1. How many moles of iron is needed to react with sulfur in order to produce 8.6 moles
AleksAgata [21]

Answer:

17.2 moles of Iron are required

Explanation:

Based on the chemical reaction:

2Fe + 3S → Fe₂S₃

<em>2 moles of Fe react with 3 moles of S to produce 1 mole of Iron (III) sulfide</em>

<em />

Assuming and excess of sulfur, if we want to obtain 8.6 moles of Fe₂S₃ are required:

8.6 moles Fe₂S₃ * (2 moles Fe / 1mol Fe₂S₃) =

<h3>17.2 moles of Iron are required</h3>
7 0
2 years ago
What is the correct formula for glucose? A) CO2H2O B) C6H12O6 C) CHO D) CO2 + H2O
chubhunter [2.5K]

Answer:

It's B  !

Explanation:

Formulas. The molecular formula for glucose is C6H12O6. This means that there are 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms bonded together to make one molecule of glucose.

Hope this helps!!

8 0
3 years ago
What is the independent and dependent variable?
tigry1 [53]
Independent is the variable that you change
Dependent is the thing you measure
3 0
2 years ago
On which of these physical features are industrial diamonds mined?
Gelneren [198K]
The answer to the given question above is GUIANA SHIELD. This is the physical feature that industrial diamonds are mined. Guiana shield is actually located in northeast South America. This is considered to be one of the <span>cratons of the South American Plate. This location is said to have an abundant deposits of diamonds and other minerals.</span>
4 0
3 years ago
What’s the difference between heterogeneous and homogeneous mixtures?
Ronch [10]

Answer:

Mixtures can be either homogeneous or heterogeneous. A mixture in which its constituents are distributed uniformly is called homogeneous mixture, such as salt in water. A mixture in which its constituents are not distributed uniformly is called heterogeneous mixture, such as sand in water.

5 0
2 years ago
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