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joja [24]
2 years ago
11

The electron configuration of an element is shown below.

Chemistry
2 answers:
krok68 [10]2 years ago
7 0

Answer:

Group 17

Explanation:

1s22s22p5 is the electron configuration of fluorine, F.  The outer shell has 7 valence electrons (2s2 2p5) and needs i one more to fill its outer shell.  It will beg, lie and steal 1 more electron when it gets the chance.  It will then have an filled octetr outer shell.

gayaneshka [121]2 years ago
5 0

Answer:it is in group 7

Explanation:it is in this group because in the increasing number of atomic number the element is found in group seven. The element is likely to receive 3 electrons while bonding with another element to make it stable.

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Complete each of the definitions with the appropriate phrase. Precision means that measurements are close to Accuracy means that
sergiy2304 [10]

Answer: Precision means that measurements are close to each other . Accuracy means that measurements are close to accepted value

Explanation:

Precision refers to the closeness of two or more measurements to each other.  

For Example: If we weigh a given substance five times and you get 5.0 kg each time. Then the measurement is very precise.

Accuracy refers to the closeness of a measured value to a standard or known value.

For Example: If the mass of a substance is 5.0 kg and one person weighed 4.9 kg and another person weighed 3.9 kg. Then, the weight measured by first person is more accurate.

Thus Precision means that measurements are close to each other . Accuracy means that measurements are close to accepted value.

5 0
2 years ago
In the reaction H2SO4 + 2 NaOH -> Na2SO4 + 2H2O, an equivalence point occurs when 29.43 mL of 0.1973 M NaOH is added to a 32.
Tamiku [17]
            moles NaOH = c · V = 0.1973 mmol/mL · 29.43 mL = 5.806539 mmol
            moles H2SO4 = 5.806539 mmol NaOH · 1 mmol H2SO4 / 2 mmol NaOH = 2.9032695 mmol
Hence
            [H2SO4]= n/V = 2.9032695 mmol / 32.42 mL = 0.08955 M
The answer to this question is  [H2SO4] = 0.08955 M

6 0
2 years ago
state whether the following changes are physical or chemical for rancidipication fixation of water 2 tearing of paper 3 rusting
Artist 52 [7]
1. rancidification fixation of water is CHEMICAL CHANGE

2. Tearing of paper is PHYSICAL CHANGE

3. Rusting if iron is CHEMICAL CHANGE

4. Electrolysis of water is CHEMICAL CHANGE
5 0
3 years ago
For which of the following reactions is ΔH∘rxn equal to ΔH∘f of the product(s)?
Stels [109]
Try your luck kid hope it helps 
3 0
2 years ago
In 2011, a computer named Watson competed against two humans on a popular television quiz show and won. Watson listened to each
Molodets [167]

Answer:

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Explanation:

6 0
3 years ago
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