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il63 [147K]
3 years ago
8

Need help in chemistry with these 10 questions please. 80 points well be given.

Chemistry
2 answers:
Kisachek [45]3 years ago
8 0

Answer:

See the attachment for the filled in chart.

Let me know if you need any other help:)

lesya [120]3 years ago
5 0

Answer:

I can't read it but the person before me is probably correct.

Explanation:

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Please help I'm not good at science​
Citrus2011 [14]

Answer:

i'm not able to see images but if you type it all i can answer:)

Explanation:

8 0
3 years ago
Pls help me this is my last question
asambeis [7]

Answer: how much mass is in a certain amount of space

Explanation: density is g/mL; therefore it’s the mass (g) in a certain amount of space (mL)

7 0
3 years ago
Read 2 more answers
A 29.7 g sample of iron ore is treated as follows. The iron in the sample is all converted by a series of chemical reactions to
Softa [21]

<u>Answer:</u> The mass of iron in the ore is 10.9 g

<u>Explanation:</u>

We are given:

Mass of iron (III) oxide = 15.6 g

We know that:

Molar mass of Iron (III) oxide = 159.69 g/mol

Molar mass of iron atom = 55.85 g/mol

As, all the iron in the ore is converted to iron (III) oxide. So, the mass of iron in iron (III) oxide will be equal to the mass of iron present in the ore.

To calculate the mass of iron in given mass of iron (III) oxide, we apply unitary method:

In 159.69 g of iron (III) oxide, mass of iron present is (2\times 55.85)=111.7g

So, in 15.6 g of iron (III) oxide, mass of iron present will be = \frac{111.7g}{159.69g}\times 15.6g=10.9g

Hence, the mass of iron in the ore is 10.9 g

7 0
3 years ago
Most of the elements of which region of the periodic table are located directly to the right of the metalloids?
scZoUnD [109]

Answer:

im sorry for being mean goodbye im get the real answer

Explanation:

7 0
3 years ago
I need help filling out the chart where it says lithium please!!!
vovangra [49]
Use a periodic table, It should help
6 0
3 years ago
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