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timurjin [86]
3 years ago
6

What is the answer pls help me

Chemistry
1 answer:
scZoUnD [109]3 years ago
3 0
It’s definitely magnesium but it may not be
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What are three functions of the excretory system
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Helps eliminate waste products such as urea, uric acid ammonia, and other products via urine.

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And it also helps in the metabolism of those drugs that do not get metabolized in the liver.

Explanation:

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3 years ago
If I have 12.0 volume of gas at pressure of 1.10 and temperature of 200k, what is the number of moles? (R=8314)
arsen [322]

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7.94 x 10^6 mol

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n=7.94 x 10^6 mol

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3 years ago
What mass of water (in grams) is produced by the reaction of 23.0 g of SiO2?
nikitadnepr [17]

The mass of water produced by the reaction of the 23 g of SiO_2  is 13.8 g.

The given chemical reaction;

4Hf (g)  \ + \ SiO_2 (s) \ --> \ SiF_4(g) \ + \ 2H_2O(l)

In the given compound above, we can deduce the following;

  • molecular mass of SiO_2 = 28 + (2 x 16) = 60 g
  • molecular mass of 2H_2O = 2(18) = 36 g

60 g of SiO_2  --------- 36 g of water

23 g of SiO_2  ------------- ? of water

mass \ of \ water = \frac{23 \times 36}{60} = 13.8 \ g \ of \ water

Thus, the mass of water produced by the reaction of the 23 g of SiO_2  is 13.8 g.

  • <em>"Your question is not complete, it seems to be missing the following information";</em>

In the reaction of the given compound, 4Hf (g)  \ + \ SiO_2 (s) \ --> \ SiF_4(g) \ + \ 2H_2O(l), what mass of water (in grams) is produced by the reaction of 23.0 g of SiO2?

Learn more here:brainly.com/question/13644576

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2 years ago
Which pieces of equipment would be used to measure the density of a solution?
Inessa05 [86]

Answer:

c I've taken chem 3 times

Explanation:

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