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MrRissso [65]
3 years ago
8

Rutherford's model of the atom was different from Bohr's model because: Bohr's model provided specific energy levels and locatio

ns for the electrons Rutherford's model did not take into account the presence of electrons Bohr's model was never tested Rutherford's model suggested that the positions of the protons and electrons were interchangeable
Chemistry
1 answer:
Archy [21]3 years ago
7 0
Is that a multiple choice? As in:

A) <span>Bohr's model provided specific energy levels and locations for the electrons
B) </span><span>Rutherford's model did not take into account the presence of electrons
C) </span><span>Bohr's model was never tested
D) </span><span>Rutherford's model suggested that the positions of the protons and electrons were interchangeable

If that's the case, the answer is A.</span>
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Que pasa si a una taza de arena le pongo espuma y lo agito por 10 minutos?
Nonamiya [84]

Answer:

Conversion of energy

Explanation:

Shaking the sand is a form of kinetic energy. The friction of the sand particles rubbing against each other converts the kinetic energy to heat energy. Some of the kinetic energy also converts into the energy of sound waves, which you can hear while you shake the sand.

7 0
3 years ago
A sample of lead has the density of 58 g/mL and a mass of 15.2g, what is the volume of the lead?
torisob [31]

Answer:

0.26 ml

Explanation:

d = m/V

=> V = m/d = 15.2/58 = 0.26 ml

4 0
1 year ago
Calculate the amount of heat needed to boil 183.g of ethanol ( CH3CH2OH ), beginning from a temperature of 33.9°C . Round your a
Shkiper50 [21]

Answer:

19,700 Joules

Explanation:

Quantity of heat (Q) = mc(T2-T1)

m (mass of ethanol) = 183g

c (specific heat capacity of ethanol) = 2.44J/g°C

T2 (boiling temperature of ethanol) = 78°C

T1 (initial temperature of ethanol) = 33.9°C

Q = 183×2.44(78 - 33.9) = 183×2.44×44.1 = 19691.532 = 19,700 Joules (to three significant digits)

6 0
3 years ago
How do you balance nuclear equations?
Effectus [21]
The sum of the mass numbers and the sum of the atomic numbers balance on either side of an equation
6 0
4 years ago
If we mix 25 grams of sodium bromide with a large amount of potassium chloride, what will our theoretical yield of sodium chlori
erik [133]

Answer:

Theoretical yield of sodium chloride = 14.04 g

Explanation:

Given data:

Mass of sodium bromide = 25 g

Theoretical yield of sodium chloride = ?

Solution:

Chemical equation:

NaBr + KCl  → NaCl  + KBr

Number of moles sodium bromide:

Number of moles = Mass /molar mass

Number of moles = 25.0 g / 102.9 g/mol

Number of moles = 0.24 mol

Now we will compare the moles of NaCl with NaBr  .

                  NaBr         :               NaCl

                    1               :               1

                 0.24           :            0.24

Theoretical yield of sodium chloride:            

Mass  = moles × molar mass

Mass = 0.24 mol ×  58.5 g/mol

Mass =  14.04 g

7 0
3 years ago
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