10. How does a heterogeneous mixture differ from a homogeneous mixture? How are they similar?

1 answer:

8 0

A homogeneous mixture is a solid, liquid or gaseous mixture that has the same proportions of its components throughout any given sample & a heterogeneous mixture has components in which proportions vary throughout the sample. They are both similar because they’re often referred to as solutions

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A chemical property is determined by the following:

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Chemical properties can be determined by heat combustion, how they react with other chemicals, Oxidization (lose electrons, losing hydrogen, gaining oxygen), or toxicity.

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Multiple states of matter - mixture
Same state of matter - pure
Separated physically- mixture
Consistent properties - pure
Can’t be separated- pure
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Using the balanced equation for the next few questions: 4 Fe(s) + 30 (9) - 2Fe2O3(s)

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Answer:

0.075 moles of iron oxide would be produced by complete reaction of 0.15 moles of iron.

Explanation:

The balanced reaction is:

4 Fe + 3 O₂ → 2 Fe₂O₃

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

Fe: 4 moles
O₂: 3 moles
Fe₂O₃: 2 moles

You can apply the following rule of three: if by stoichiometry 4 moles of Fe produce 2 moles of Fe₂O₃, 0.15 moles of Fe produce how many moles of Fe₂O₃?

$moles of Fe_{2} O_{3} =\frac{0.15 moles of Fe*2 moles of Fe_{2} O_{3} }{4 moles of Fe}$