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Bezzdna [24]
4 years ago
10

The nucleus of the atom was discovered by what pioneering

Chemistry
2 answers:
iris [78.8K]4 years ago
8 0
It was discovered in 1911 by Ernest Rutherford based on the 1909 gold foil experiment. 
anzhelika [568]4 years ago
4 0
Genetic engineering. lol
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Explain how the following experiment shows the direction that gravity pulls an object, specifically showing that it does not pul
balu736 [363]

Answer:that cant happen it get smaller ever bounce it docent get higher the first bounce it the highest.

Explanation:

7 0
3 years ago
A solution was prepared by dissolving 0.05000 mol of sucrose in 100.0 kg of water. Find
Licemer1 [7]

Answer:

0.0005mol/kg

Explanation:

Molality = mole of solute/mass of solvent (kg)

From the question, we obtained the following data:

Mole of solute = 0.05mole

Mass of solvent = 100kg

Molality = 0.05/100

Molality = 0.0005mol/kg

The molality of the solution is 0.0005mol/kg

8 0
4 years ago
Read 2 more answers
Which of he following is a secondary alkanol?
hodyreva [135]

Answer: Thus CH_3CH(OH)CH_3 is a secondary alkanol.

Explanation:

Alkanol are compounds which contains carbons bonded by single bonds and contains hydroxy (-OH) as functional group.

Primary alkanol are those compounds which contain hydroxyl group attached a carbon which is further attached to a single carbon atom. Example: CH_3CH_2CH_2OH and CH_3CH_2CH_2CH_2OH

Secondary alkanol are those compounds which contain hydroxyl group attached to a carbon which is further attached to two more carbon atoms.Example: CH_3CH(OH)CH_3

Tertiary alkanol are those compounds which contain hydroxyl group attached to a carbon which is further attached to three more carbon atoms. Example: C(CH_3)_3OH

Thus CH_3CH(OH)CH_3 is a secondary alkanol.

5 0
3 years ago
in the structure of an atom why are protons present in the centre and are not pulled outside by the electrons as both are positi
Maurinko [17]

Answer:

Electrons and protons are not positively charged

Explanation:

Neutrons are the only ones positively charged in the structure of an atom.... Also like charges repel which means a -ive and a - ive will repel when together

8 0
3 years ago
A gas has a mass of 3.82 g and occupies a volume of 0.854 L. The temperature in the laboratory is 302 K, and the air pressure is
Rzqust [24]

The molar mass of the gas that has a mass of 3.82 g and occupies a volume of 0.854 L is 106.66g/mol.

<h3>How to calculate molar mass?</h3>

The molar mass of a substance can be calculated by dividing the mass of the substance by its number of moles.

However, the number of moles of the gas in this question needs to be calculated first using the ideal gas law equation:

PV = nRT

Where;

  • P = pressure
  • V = volume
  • n = number of moles
  • T = temperature
  • R = gas law constant

1.04 × 0.854 = n × 0.0821 × 302

0.888 = 24.79n

n = 0.888/24.79

n = 0.036mol

Molar mass of gas = 3.82g/0.036mol

Molar mass = 106.66g/mol

Therefore, the molar mass of the gas that has a mass of 3.82 g and occupies a volume of 0.854 L is 106.66g/mol.

Learn more about molar mass at: brainly.com/question/12127540

3 0
2 years ago
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