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sammy [17]
3 years ago
10

A) What are the postulates of Bohr's model of an atom??

Chemistry
1 answer:
Montano1993 [528]3 years ago
6 0

Answer:

a) As I remember "the atomic spectra" of bohr

1- Existence of a positively charged nuclei in the centre of the atom

2- Number of negatively charged electrons = number of positive charges ported by the atom.

3- Electrons navigate in fixed energy levels , with a high speed without gain or loose energy

4- centrifugal force is in equilibrium with attraction force.

5- The empty space between energy levels is forbidden for electrons.

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Kazeer [188]
The answer is c this is the answer
7 0
3 years ago
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What is the IUPAC name of a bromobenzene with carboxylic acid attached
LuckyWell [14K]

Answer:

Bromobenzoic acid  

Explanation:

COOH has higher priority than Br, so the parent name is benzoic acid.

The COOH group is automatically on C1 of the ring, and the other aromatic carbons are numbered sequentially around the ring.

The name of the substituent is joined to that of the parent, and the locant is attached to that with a hyphen.

The generic IUPAC name is bromobenzoic acid.

There are three isomers of benzoic acid — 2-bromobenzoic acid, 3-bromobenzoic acid, and 4-bromobenzoic acid —  so you must always specify which one you mean.

5 0
3 years ago
A hypothetical element consists of 2 isotopes of masses 84.95 amu and 86.95 amu with abundance of 37.1% and 62.9% respectively.
vodka [1.7K]
The average atomic mass of the hypothetical element is the sum of the products of the isotopes and their percentage abundance. For this given,
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Thus, the average atomic mass of the element is 86.208 amu. 

6 0
3 years ago
Which of the following choices has the ecological levels listed from largest to smallest?
wariber [46]

Answer:

the answer is something  

Explanation:

3 0
3 years ago
4. Evaluate the information contained in this calculation and complete the
Neporo4naja [7]

Since you did not give a calculation, I will just give an example. Suppose that you are to burn 5 kg of methane (CH4) from 0 to 10°C. The specific heat capacity of methane is 4.475 kJ/kg-K.

H = mCpT

H = (5kg)( 4.475 kJ/kg-K)(10-0)

H = 223.75 kJ

Because the enthalpy is positive in value, methane takes in heat. 

7 0
4 years ago
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