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earnstyle [38]
3 years ago
13

1. Similarities between alchemy and chemistry include

Chemistry
2 answers:
ValentinkaMS [17]3 years ago
4 0

Answer:

B or C

Explanation:

Alchemy rely a lot on the spiritual connections to the four elements and they are fire, water, earth and air while chemistry is a lot more logical, factual and scientific based. Also, chemistry is considered as science, while alchemy is not.  

Alchemy was based more on experimentation and had little basis in science. Chemistry utilizes both experimentation and scientific practices. Modern chemistry basically relies on scientific theories and experimental results, but the alchemy was a blend of myths, religion, magic, astrology, philosophy, and spirituality.

emmasim [6.3K]3 years ago
3 0

Answer:

C Like chemistry, alchemy sought to understand and manipulate matter

Explanation:

Found it in the book

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Combustion:

The saturated hydrocarbons are relatively inert except at high temperatures. Combustion is one of the more important chemical reactions of the alkanes.


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All of the following are examples of a heterogeneous mixture EXCEPT:
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Why can't methanol, CH3OH, be used as a solvent for sodium amide, NaNH2? Sodium amide is nonpolar and methanol is polar. Sodium
Elodia [21]

Answer: sodium amide undergoes an acid -base reaction

Explanation:

sodium amide is a ionic compound and basically exists as sodium cation and amide anion. Amide anion is highly basic in nature and hence as soon as  there is amide anion generated in the solution , Due to its very pronounced acidity it very quickly abstracts the slightly acidic proton available on methanol.

This leads to formation of ammonia and sodium methoxide.

Hence sodium amide reacts with methanol and abstracts its only acidic proton and form ammonia and sodium Methoxide.

Hence the 3rd statement is a corrects statement.

So we cannot use methanol for sodium amide because sodium amide itself would react with methanol and the inherent molecular natur of sodium amide would then change.

The 1st and 2nd statements both are incorrect because both the compounds methanol as well as sodium amide have dipole moments and hence are polar molecules.

The 4th statement is also incorrect as both the molecules have dipole moment and hence there would be ion-dipole forces operating between them.

The following reaction occurs:

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3 years ago
What happens to a balloon that is full of hydrogen gas when you put a flame on it?
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Fe(s)+CuSO4(aq)========Cu(s)+FeSO4(aq)*Note both 4's are subscripts and the equal signs represent an arrow.Suppose an industrial
igomit [66]

<u>Answer:</u> The original concentration of copper sulfate is 0.56 g/L

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}     .....(1)

Given mass of copper = 89 mg = 0.089 g   (Conversion factor: 1 g = 1000 mg)

Molar mass of copper = 63.5 g/mol

Putting values in equation 1, we get:

\text{Moles of copper}=\frac{0.089g}{63.5g/mol}=0.0014mol

The given chemical equation follows:

Fe(s)+CuSO_4(aq.)\rightarrow Cu(s)+FeSO_4(aq.)

By Stoichiometry of the reaction:

1 mole of copper metal is produced by 1 mole of copper sulfate

So, 0.0014 moles of copper metal will be produced by = \frac{1}{1}\times 0.0014=0.0014mol of copper sulfate

Now, calculating the mass of copper sulfate from equation 1, we get:

Molar mass of copper sulfate = 159.6 g/mol

Moles of copper sulfate = 0.0014 moles

Putting values in equation 1, we get:

0.0014mol=\frac{\text{Mass of copper sulfate}}{159.6g/mol}\\\\\text{Mass of copper sulfate}=(0.0014mol\times 159.6g/mol)=0.223g

  • Calculating the original concentration of copper sulfate:

Mass of copper sulfate = 0.223 g

Volume of copper sulfate = 400 mL = 0.400 L    (Conversion factor: 1 L = 1000 mL)

\text{Original concentration of copper sulfate}=\frac{0.223g}{0.400L}=0.56g/L

Hence, the original concentration of copper sulfate is 0.56 g/L

7 0
3 years ago
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