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3 years ago

Please help (2nd box interviewing, writing and selling)

Chemistry

2 answers:

Irina18 [472]3 years ago

6 0

Answer:

writing.

. .. . . . . .. . . .. . . . .

Sonja [21]3 years ago

5 0

Homocides qnd writing

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Mariana [72]

Answer:

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3 years ago

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During the electrolysis of cryolite ,aluminium and fluorine are formed in.......molar ratio

PtichkaEL [24]

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From the first mechanism, it can be seen that the Aluminum is reduced at cathode and Florine is oxidized at anode.

The ratio of aluminium and fluorine is the ratio of their change in oxidation number, i.e. 2:3

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3 years ago

If your creating a machine that will clean up trash from the ocean is that adding or removing thermal energy?

bogdanovich [222]

Answer: adding

Explanation:

Because it takes thermal energy to power it

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4 years ago

A sample of 0.300 mol of a metal m reacts completely with excess fluorine to form 23.4 g of mf2. what element is represented by

Phoenix [80]

Molecular weight of m is 40g. Hence, name of element m is Calcium. which is represented by the symbol Ca.

Given,

Moles of metal M = 0.300 moles

weight of mF₂ formed =23.4g

we have to find the name of element m...

Now,

m + F₂ → mF₂

1 mole of m reacts with 1 mole of F₂ (or 2 molecule of flourine) to form 1 mole of mF₂

Hence,

0.300 moles of m reacts with 0.300 moles of F₂ to form 0.300 moles of mF₂.

Hence,

23.4 g = 0.300 moles of mf2

0.300 × 38g + 0.300 × m = 23.4 g

Hence

m = 40 g

So, molecular weight of m is 40g. Hence, name of element m is Calcium. which is represented by the symbol Ca.

Thus, from the above conclusion we can say that, name of element m is Calcium. which is represented by the symbol Ca.

Learn more about Calcium here:brainly.com/question/26636816

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1 year ago

What is NOT a property of a metal?

Phantasy [73]

Answer:

Lustrous is NOT a property of metal

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3 years ago