Electricity is the _of charged<br> particles.<br> A.movement<br> B. collection<br> C.build up

PLEASE HELP ASAP!!! 25 POINTS AND BRAINLIEST FOR FASTEST AND BEST ANSWER!!!

QveST [7]

Which list places the layers of the sun in the correct order from innermost to outermost?

Corona, photosphere, chromosphere

Photosphere, convective zone, radiative zone

Convective zone, chromosphere, corona

Radiative zone, corona, convective zone

the answer is most likely

Convective zone, chromosphere, corona

7 0

3 years ago

2.643 grams of potassium butanoate (KCH3(CH2)2CO2 ) is fully dissolved in 50.00 mL of water, which is carefully transferred to a

lara [203]

Answer:

The pH of the solution is 4.69

Explanation:

Given that,

Mass of potassium = 2.643 grams

Weight of water = 50.00 mL

Weight of HCl=100.00 ml

Mole = 0.120 M

We know that,

$KCH_{3}(CH_{2})_{2}CO_{2}$ is a basic salt.

Let's write it as KY.

The acid $HCH_{3}(CH_{2}CO_{2})$ would become HY.

We need to calculate the moles of KY

Using formula of moles

$moles\ of\ KY=\dfrac{m}{M}\times1000$

$moles\ of\ KY=\dfrac{2.643}{126}\times1000$

$moles\ of\ KY=20.97\ m\ mole$

The reaction is

$KY+HCl\Rightarrow HY+ KCl$

The number of moles of KY is 20.98 m

initial moles = 20.98

Final moles $m=20.98-0.120\times100= 8.98$

We need to calculate the value of pKa(HY)

Using formula for pKa(HY)

$pKa_{HY}=-log Ka$

$pKa_{HY}=-log(1.5\times10^{-5})$

$pKa_{HY}=4.82$

We need to calculate the pH of the solution

Using formula of pH

$pH=pKa+log(\dfrac{[KY]}{[KH]})$

Put the value into the formula

$pH=4.82+log(\dfrac{8.98}{12})$

$pH=4,69$

Hence, The pH of the solution is 4.69

7 0

3 years ago

How many ways can you write butene? Draw them

jek_recluse [69]

Answer: gonna lin k answer key

7 0

3 years ago

Helppppppppppppppppppppppppp

Georgia [21]

Answer:

2 elements and one compund i think

Explanation:

4 0

3 years ago

Which of the following is a possible reason that urban sprawl is common even when it has a negative impact on the environment? a

Mrrafil [7]

<h2>Answer:</h2>

Option B is correct.

b. extending outward is more economical than extending upward

<h2>Explanation:</h2>

people tend to move from rural areas to urban for the greater facilities that they can enjoy at cities. This urban sprawl is also very economic because people will get more chances of jobs, business and work hence improving the economy.

6 0

3 years ago

Read 2 more answers

Electricity is the _of charged particles. A.movement B. collection C.build up