All categories

3 years ago

Which statement Ilustrates the difference between a chemical reaction and a nuclear reaction?

Chemistry

1 answer:

pishuonlain [190]3 years ago

8 0

Answer:

A nuclear reaction releases more energy per gram and appears to violate the law of conservation of mass.

Explanation:

In nuclear reactions there arises a shift in the nucleus of the atom. This results in the production of a different element altogether. While in chemical reactions the electrons are rearrangement and there is no change in the nucleus.
Factors like temperature, pressure, and catalysts do not affect the rate of nuclear reactions while they influence the chemical reactions.
The change in the energy is higher in nuclear reactions. It arises out of the destruction of mass.

You might be interested in

PLEASE HELP I WILL MARK BRAINLIEST

Art [367]

Answer:

Block A

Explanation:

7 0

3 years ago

Specify which atoms, if any, bear a formal charge in the Lewis structure given and the net charge for the species.

ozzi

Answer :

Formal charge on C: (-1)

Formal charge on N: (0)

Net charge: (-1)

Explanation :

First we have to determine the Lewis-dot structure of $CN^-$ .

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, $CN^-$

As we know that carbon has '4' valence electrons and nitrogen has '5' valence electrons.

Therefore, the total number of valence electrons in $CN^-$ = 4 + 5 + 1= 10

According to Lewis-dot structure, there are 6 number of bonding electrons and 4 number of non-bonding electrons.

Now we have to determine the formal charge for each atom.

Formula for formal charge :

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

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

$\text{Formal charge on N}=5-2-\frac{6}{2}=0$

Net charge = -1 + 0 = -1

4 0

4 years ago

A sample of pure copper has a mass of 5 grams calculate its volume

kolbaska11 [484]

Moles of cu = mass/Ar
= 5/Ar
=ans

1 mole = 24dm3

Vol of cu = ans/1 × 24dm3
=ans

sorry i have no calculator with me now

4 0

3 years ago

I need to know “ The carbon atom that has the chlorine atone has an optical activity “

katrin2010 [14]

Answer: R

Explanation: is polarized to the right

3 0

3 years ago

Sound travels in waves. Sound waves are compression waves. Pick the place where it is impossible to hear sounds.

Arturiano [62]

You can not hear sound in vacuumed places like space. Wherever there is a high altitude, it makes it harder to hear sound and harder to breathe. Sound travels best in solids. Hope that helps a little bit.

3 0

4 years ago

Read 2 more answers