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stiv31 [10]
3 years ago
10

5.

Chemistry
1 answer:
strojnjashka [21]3 years ago
8 0
I think b because it talks more about the question
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Determine the empirical formula for a compound that contains 15.8% carbon and 84.2% sulfer
nydimaria [60]

Answer:

Carbon Disulfide CS2

Explanation:

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2 years ago
The basic building blocks of proteins are:<br> O amino acids<br> O aldehydes<br> O amides<br> ODNA
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Amino acids are the basic parts of proteins
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The solubility of water in diethyl ether has been reported to be 1.468 % by mass.' Assuming that 23.0 mL of diethyl ether were a
melomori [17]

Explanation:

As it is given that solubility of water in diethyl ether is 1.468 %. This means that in 100 ml saturated solution water present is 1.468 ml.

Hence, amount of diethyl ether present will be calculated as follows.

                          (100ml - 1.468 ml)

                        = 98.532 ml

So, it means that 98.532 ml of diethyl ether can dissolve 1.468 ml of water.

Hence, 23 ml of diethyl ether can dissolve the amount of water will be calculated as follows.

          Amount of water = \frac{1.468 ml \times 23 ml}{98.532 ml}

                                       = 0.3427 ml

Now, when magnesium dissolves in water then the reaction will be as follows.

                Mg + H_{2}O \rightarrow Mg(OH)_{2}

Molar mass of Mg = 24.305 g

Molar mass of H_{2}O = 18 g

Therefore, amount of magnesium present in 0.3427 ml of water is calculated as follows.

           Amount of Mg = \frac{24.305 g \times 0.3427 ml}{18 g}  

                                    = 0.462 g

   

6 0
3 years ago
Will the composition of water molecules vary depending on their source?
Alecsey [184]

Answer:

It does not matter where the sample of water came from or how it was prepared. Its composition, like that of every other compound, is fixed.

6 0
2 years ago
The periodic table below shows which elements are metals, nonmetals, and metalloids. the element with the chemical symbol ______
aleksandr82 [10.1K]
H.
represents hydrogen element. under non metal classification.

for others, you'll find them under metal element classification.
8 0
3 years ago
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