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melisa1 [442]
3 years ago
10

ASAP will give brainliest!!!!

Chemistry
1 answer:
Andru [333]3 years ago
7 0

Answer:

1

Explanation:

fluorine's atomic number is 9

electronic configuration: 2,7

so it needs 1 electron to stabilise

that's why 1 covalent bond

hope it helps!!

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Sindrei [870]

Answer:

x²+6x+5=0

On comparing with the equation

ax² + bx + c = 0

a=1, b = 6 and c = 5

Now

b²– 4ac = 6² – 4 x 1 x 5 = 36 - 20 = 16

x =  \frac{ - b \:± \:  \sqrt{b {}^{2} - 4ac }  }{2a}  \\  \\ x =  \frac{ - 6\:± \:  \sqrt{16 }  }{2 \times 1}  \\ \\  x =  \frac{ - 6± {4}  }{2}  \\    \\ x =  \frac{ - 6 +  {4}  }{2} \:  \: or \:  \: x =  \frac{ - 6 -  {4}  }{2} \\   \\ \implies \: x =  \frac{  \cancel-2  }{ \cancel2}^{-1 }\:  \: or \:  \: x =  \frac{  \cancel-10  }{ \cancel2}^{-5}\\  \\    \implies \: { \blue{\fbox{ \: x =  - 1 \:  \:  \: or \:  \:  \:x  =  - 5}}}

8 0
2 years ago
Read 2 more answers
methane Express your answer as a condensed structural formula omitting all bonds (e.g CH3CH2CH3). nothing Request Answer Part B
bonufazy [111]

Answer:

a

 The condensed structural formula for methane is

            CH_4

b

 The condensed structural formula for ethane is

           CH_3 CH_3

c

  The condensed structural formula for pentane is  

            CH_2(CH_2)_3CH_3

d

   The diagram for the structural formula for cyclopropane is shown on the first uploaded image

Explanation:

3 0
4 years ago
what is the mass of carbon dioxide which contain the same number of molecules as are contained in 14 gram of oxygen?​
Ratling [72]

Answer:

Mass of CO2 WILL BE ~ 9.33 g

Explanation:

Moles of O2 = 14/18

Let the mass of CO2 be x

Then moles of CO2 will be = x/12

moles of CO2 = moles of O2

x/12 = 14/16

x = 9.33 grams

3 0
4 years ago
Five alloys at home and it’s usage, pls help :(
Vikentia [17]

Answer:

An alloy is a metal made up of multiple metals giving it more strength.

Some examples may be a cast iron pot, rings, stainless steel sinks, instruments like the saxophone, door knobs, some keys, and some tools. Hope this helps some :)

Explanation:

3 0
3 years ago
A titration graph shows little resistance to a change in pH at the start and has a single equivalence point of 8.6.
konstantin123 [22]

Answer: A weak acid titrated by a strong base

Explanation:

The graph refers to the titration of a weak acid such as Hydrofluoric acid with a strong base such as Sodium Hydoxide. What happens is that as the process begins, the pH rises quickly as there is little resistance to the base.

After some time the solution formed begins to act as a buffer between the remaining acid and the base. This reduces the pH change rate and will continue until the base overcomes the solution's buffering capacity.

The Equivalence point which is where the acid will be at it's base form, will be at a pH of 8.6.

I have attached a graph showing the process for better understanding.

3 0
3 years ago
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