Describe the main diffrence between the bohr model of the atom and the rutherford model

Answers

Answer 1

Answer:

Answer:

Bohr thought that electrons orbited the nucleus in quantised orbits. ... In Rutherford's model most of the atom's mass is concentrated into the centre (what we now call the nucleus) and electrons surround the positive mass in something like a cloud. Bohr's most significant contribution was the quantisation of the model.

Explanation:

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The volume of 6.00M HCl needed to make 319 ml of 6.80M HCl

Answers

Answer : The volume of 6.00 M HCl needed are, 361.5 ml

Solution :

According to the neutralization law,

$M_1V_1=M_2V_2$

where,

$M_1$ = molarity of HCl solution = 6.00 M

$V_1$ = volume of HCl solution = ?

$M_2$ = molarity of another HCl solution = 6.80 M

$V_2$ = volume of another HCl solution = 319 ml

Now put all the given values in the above law, we get the volume of HCl solution.

$(6.00M)* V_1=(6.80M)* (319ml)$

$V_1=361.5ml$

Therefore, the volume of 6.00 M HCl needed are, 361.5 ml

The mole number of the solute after dilution is constant. So the mole number of 319 ml of 6.80 M HCl is 6.80*319*10^(-3)=2.17 mol. So the volume of 6.00 M HCl needed is 2.17/6.00=0.362 L=362 ml.

Which is a characteristic of a nonelectrolyte?A. It does not dissociate or ionize in water.
B. It partially dissociates or ionizes in water.
C. It conducts electricity poorly.
D. It conducts electricity extremely well.

Answers

Answer: Option (A) is the correct answer.

Explanation:

Non-electrolytes are the substances which do not dissociate into a solution or water to form ions.

Since, non-electrolytes do not dissociate into ions. Hence, they do conduct electricity.

Thus, we can conclude that it does not dissociate or ionize in water is a characteristic of a non-electrolyte.

Non-electrolytes are neither partially ionizable nor do they conduct electricity poorly. Therefore, out of the given options, only option (A) is the correct answer.

It is A on edge test

If a crystal added to an aqueous solution causes many particles to come out of the solution, the original solution wasa. saturated.
b. unsaturated.
c. supersaturated.
d. an emulsion.

Answers

Supersaturated so C trust me

Answer:

I don't think it is. I think it would be an emulsion.

How many grams of oxygen are in 3.00 mol of NaNO3?

Answers

Molar mass of NaNO3 = 84.99 g/mol

1 mol NaNO₃ --------- 84.99 g
3.00 mol NaNO₃ ----- ?

Mass = 3.00 * 84.99 / 1

= 254.97 g of NaNO₃

This malleable metal has an atomic number of 79

Answers

The malleable metal on the periodic table with the atomic number of 79 is gold

If 41grams of water at 24°C absorbs 2208 J of heat energy, what will be the final temperature of the water?

Answers

The problem can solved using the heat equation which is expressed as:

H = mCΔT

where H is the energy absorbed or released, m is the mass of the substance, C is the specific heat capacity, and ΔT is the change in temperature.

2208 J = 41 g x 4.18 J/g·°C x ( T - 24 °C)
T = 36.88 °C

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