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Sonja [21]
3 years ago
7

Help please I’ll make you as brainlister 3

Chemistry
2 answers:
lord [1]3 years ago
5 0

Answer:

It doesn't look like any of them but the best answer is SI

Explanation:

GarryVolchara [31]3 years ago
4 0
Answer: C. Al (aluminum)
Explanation: it has 3 valence electrons :)
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Answer:

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Explanation:

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How many meters are in ten cm?
ser-zykov [4K]

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Which statement about organic matter is false? A. Organic matter comes from organisms. B. Organic matter contains the element, c
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B. Organic matter contains the element, carbon.


3 0
3 years ago
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Calculate the mole fraction of the total ions in an aqueous solution prepared by dissolving 0.400 moles of CaI2 in 850.0 g of wa
Evgesh-ka [11]

Answer:

0.00840

Explanation:

The computation of the mole fraction is as follow:

As we know that

Molar mass = Number of grams ÷ number of moles

Or

number of moles = Number of grams ÷ molar mass

Given that

Number of moles of CaI2 = 0.400

And, Molar mass of water = 18.0 g/mol

Now  Number of moles of water is

= 850.0 g ÷ 18.0 g/mol

= 47.22 mol

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= 0.400 + 47.22

= 47.62

So, Molar fraction of CaI2 is

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= 0.00840

4 0
3 years ago
Why does waters boiling point decrease with increases in elevation
lesantik [10]

Answer:

Waters' boiling point decreases with increases in elevation because of the atmospheric pressure.

For example, the higher in elevation you are. The lower the atmospheric pressure is. In other words heated water reached boiling point quicker.

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