Chemistry, 01.09.2019 10:10 oomale

As a consequence of the discovery of the nucleus by rutherford, which model of the atom is thought to be true?
a. electrons are distributed around the nucleus and occupy almost all the volume of the atom.
b. protons, electrons and neutrons are evenly distributed throughout the volume of the atom.
c. the nucleus is made of electrons and protons

Answers: 1

Show answers

Answers

Answer from: superjoshuanucl

Electrons are distributed in shells revolving around the nucleus and occupy almost all the volume of the atom.

In the nucleus of an atom, proton and neutron are present whereas electrons are present in shells revolving around the nucleus. Most of the volume of an atom has empty spaces in which shells are present in which electrons are moving.

The number of protons and electrons are the same in an atom but the number of neutrons are different so we can conclude that electrons are distributed in shells that are present around the nucleus.

Learn more: link

Answer from: gabby902

As a consequence of the discovery of the nucleus, the model of the atom that is true is A. electrons are distributed around the nucleus and occupy almost all the volume of the atom.

It should be noted that neutron and proton can be found in the nucleus of an atom. Also, there are electrons that are present in the shells that revolve around the nucleus.

In the atom, the number of electrons and protons are the same but there are different neutrons. Lastly, most of the volume of the atom has empty spaces.

Read related link on:

link

Answer from: Quest

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 : $4x (s) + 3o_{2} (g) \rightarrow 2x_{2}o_{3} (s) h rxn = -600 kj/mol$

equation 2 : $2x (s) + 3cl_{2} (g) \rightarrow 2xcl_{3} (s) h rxn = -800 kj/mol$

equation 3 : $4xcl_{3} (s) + 3o_{2} (g) \rightarrow 2x_{2}o_{3} (s) + 6cl_(2} h rxn = -200 kj/mol$

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 : $4xcl_{3} (s) \rightarrow 4x (s) + 6cl_{2} ( h rxn = (+800) \times 2 kj/mol$

let us add equation 1 & 4

$4x (s) + 3o_{2} (g) \rightarrow 2x_{2}o_{3} (s) h rxn = -600 kj/mol$

$4xcl_{3} (s) \rightarrow 4x (s) + 6cl_{2} ( h rxn = (+1600) kj/mol$

$4xcl_{3} )s) + 3o_{2} \rightarrow 2x_{2}o_{3} (s) + 6cl_{2} (g) h rxn = (+1000) kj/mol$

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

Answer from: Quest

yes the answer is total mass in unchanged : )

Another question on Chemistry

Chemistry, 22.06.2019 01:30

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.

Answers: 1

Answer

Chemistry, 22.06.2019 05:30

Compare and contrast physical changes with chemical changes.

Answers: 1

Answer

Chemistry, 22.06.2019 15:00

What energy is it when you flip on a switch on a lamp

Answers: 1

Answer

Chemistry, 22.06.2019 17:00

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.

Answers: 1

Answer

You know the right answer?

As a consequence of the discovery of the nucleus by rutherford, which model of the atom is thought t...

Questions