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belka [17]
3 years ago
5

6 questions for 100 points

Chemistry
2 answers:
ExtremeBDS [4]3 years ago
5 0

Answer:

1.Mesopotamians

2.Constellation

3.False

4.Didn't prove it

5.Eclipses are real

6.Kepler

Setler [38]3 years ago
3 0
To be honest I got the same one as the other person
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In molecular oxygen (O=O) which atom is partially positive?
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Explanation:

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4 years ago
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Explanation:

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3 years ago
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3 years ago
Determine the moles of chlorine needed to react with 38.9 of iron (III) chloride.
lys-0071 [83]

Answer: 0.360 moles

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}

\text{Moles of} FeCl_3=\frac{38.9g}{162.2g/mol}=0.240moles

The balanced chemical reaction is:

2Fe+3Cl_2\rightarrow 2FeCl_3  

According to stoichiometry :

2 moles of require = 3 moles of

Thus 0.240 moles of FeCl_3 will require=\frac{3}{2}\times 0.240=0.360moles of Cl_2

Thus 0.360 moles of chlorine needed to react to produce 38.9 of iron (III) chloride.

6 0
3 years ago
Which one is an example of continuous variation: height, eye colour and hair colour
Andrei [34K]

Answer:

Height

Explanation:

7 0
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