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Phantasy [73]
3 years ago
11

What is the importance of classifying the elements into metals, nonmetals and metalloids?

Chemistry
1 answer:
umka2103 [35]3 years ago
6 0
The answer is so we don’t accidentally mix things in the wrong group like if you were doing an experiment and you didn’t hone the difference between metals, nonmetals and Metalloids and mix them up.
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Draw the products obtained from the reaction of 1 equivalent of HBr with 1 equivalent of 2,5-dimethyl-1,3,5-hexatriene. Draw the
fgiga [73]

Answer:

Here's what I get.

Explanation:

According to Markovnikov's rule, the H will add to a terminal carbon, generating three resonance stabilized carbocations.

The Br⁻ ion will add to any of the three carbocations.

There are three possible products:

  1. 5-bromo-2,5-dimethylhexa-1,3-triene (1)
  2. 3-bromo-2,5-dimethylhexa-1,4-triene (<em>2</em>)
  3. 1-bromo-2,5-dimethylhexa-2,4-triene (3)

6 0
3 years ago
Why does oxygen have a melting point
Jlenok [28]

Answer:

The intermolecular forces between water molecules are stronger than those between oxygen molecules. In general, the bigger the molecule, the stronger the intermolecular forces, so the higher the melting and boiling points.

5 0
3 years ago
Read 2 more answers
I'm trying to do question number 2.56
Lunna [17]
The answer is in the picture which is given below:

8 0
3 years ago
Write balanced chemical equations for the sequence of reactions that oxalic acid can undergo when it's dissolved in water.
Mashcka [7]

Answer and Explanation:

The balanced chemical equations are as follows:

The chemical formula of oxalic is  H_2C_2O_4

In the case when oxalic acts reacted with the water so here the oxalic acid eliminates one proton that leads to the development of mono acids

After that, the second step derives that when oxalic acid is in aqueous solution eliminates other proton so it represent the polyprotic acid

Now the chemical equations are as follows:

Elimination of one proton

H_2C_2O_4(aq)+H_2O(l)  \rightarrow H_2C_2O_4^-(aq) + H_3O^+(aq)

Now the elimination of other proton

HC_2O_4^-(aq)+H_2O(l)  \rightarrow C_2O_4^2^-(aq) + H_3O^+(aq)

7 0
3 years ago
If you measure the mass of a sample of an unknown gas, and also measure the volume, pressure, and temperature, what identifying
love history [14]

Answer:

The molar mass of the gas

Explanation:

The ideal gas equation of state is:

PV = nRT

If we measure the volume (V), the pressure (P), and the temperature (T), we use the gas constant R (0.082 L.atm/K.mol) to calculate n (moles of gas):

n = PV/RT

Then, we can divide the mass into the number of moles to calculate the molar mass of the gas:

molar mass = mass/n

8 0
3 years ago
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