All categories

3 years ago

Which of the following is NOT correct about elements?

Chemistry

2 answers:

Andrews [41]3 years ago

5 0

Answer:

It is B.

All the other answers are true.

A element can not be simpler

Lynna [10]3 years ago

3 0

Answer: B. Elements are represented by chemical formulas.

Elements are pure substances, which means that they cannot be broken down into simpler substances. The element is the most basic substance that exists, breaking it down further means breaking it down into protons, neutrons, and electrons, which is no longer a substance.

Elements have chemical properties that allow them to form different types of bonds with other elements.

However, elements *alone* are not represented by their chemical formulas. Only chemical bonds or ions are represented by a chemical formula.

You might be interested in

Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction:

Leni [432]

Answer:

science ka Hindi kya hoga

8 0

2 years ago

Draw the best Lewis structure for CH 3 -1. What is the formal charge on the C?

djyliett [7]

Answer : The formal charge on the C is, (-1) charge.

Explanation :

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

In the Lewis-dot structure the valance electrons are shown by 'dot'.

The given molecule is, $CH_3^{-1}$

As we know that carbon has '4' valence electrons and hydrogen has '1' valence electron.

Therefore, the total number of valence electrons in $CH_3^{-1}$ = 4 + 3(1) + 1 = 8

According to Lewis-dot structure, there are 6 number of bonding electrons and 2 number of non-bonding electrons.

Now we have to determine the formal charge on carbon atom.

Formula for formal charge :

$\text{Formal charge}=\text{Valence electrons}-\text{Non-bonding electrons}-\frac{\text{Bonding electrons}}{2}$

$\text{Formal charge on C}=4-2-\frac{6}{2}=-1$

The formal charge on the C is, (-1) charge.

3 0

3 years ago

HELP ME PLS I NEED HELP I HAVE 5MINS

Leviafan [203]

Answer:

Explanation:

Since the blood moves from the body to the right atrium to the right ventricle

3 0

2 years ago

Iron has a density of 7.86 g/cm3 and a mass of 3.76 kg. calculate the volume

DaniilM [7]

Density = Mass / Volume

Input the values in their respective places and then use algebra to solve for volume.

Hope that helps.

7 0

2 years ago

PLZZ HELP ASAPPPJKSOWLSOWOLWKSKW

Minchanka [31]

I’m pretty the answer would be continental slope. :)
I really hope this helps.

4 0

2 years ago

Read 2 more answers