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choli [55]
3 years ago
5

Develop a message for the owners of cars in villages explaining why the vehicles should be kept well even if they are spoiled, w

here they should be kept, and what kind of changed they will undergo if not properly kept.
i \: will \: mark \: brainliest \: and \: thank
​
Chemistry
1 answer:
Lera25 [3.4K]3 years ago
3 0
<h2>Answer:</h2>

<h3>#Carry On Learning</h3>

<h2>Explanation:</h2>

<h3>I hope It's Help</h3>

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Why has Earth's climate changed so rapidly in recent years?
ser-zykov [4K]
I believe it’s C , People are burning too many fossil fuels .
5 0
3 years ago
If a weak acid is 25% deprotonated at ph 4, what is the pka?if a weak acid is 25% deprotonated at ph 4, what is the pka?
Oksanka [162]
4.48
pH=pKa+log([A-/HA])

25% deprotonated tells us that A- is .25 and that the rest (75% is protonated) thats .75.

4 = pKa + log\frac{.25}{.75}
4 - log\frac{.25}{.75} = pKa
4.48=pKa

7 0
3 years ago
Read 2 more answers
Calculate the final concentration of each of the following:
kkurt [141]

Answer:

1. 2 M

2. 2 M

Explanation:

1. Determination of the final concentration.

Initial Volume (V₁) = 2 L

Initial concentration (C₁) = 6 M

Final volume (V₂) = 6 L

Final concentration (C₂) =?

The final concentration can be obtained as follow:

C₁V₁ = C₂V₂

6 × 2 = C₂ × 6

12 = C₂ × 6

Divide both side by 6

C₂ = 12 / 6

C₂ = 2 M

Therefore, the final concentration of the solution is 2 M

2. Determination of the final concentration.

Initial Volume (V₁) = 0.5 L

Initial concentration (C₁) = 12 M

Final volume (V₂) = 3 L

Final concentration (C₂) =?

The final concentration can be obtained as follow:

C₁V₁ = C₂V₂

12 × 0.5 = C₂ × 3

6 = C₂ × 3

Divide both side by 3

C₂ = 6 / 3

C₂ = 2 M

Therefore, the final concentration of the solution is 2 M

7 0
3 years ago
Helpppp me pleaseeee asaaap
Makovka662 [10]

kaloy also pala spark kabootan paano

8 0
3 years ago
What volume of 0.160 m li2s solution is required to completely react with 130 ml of 0.160 m co no3 2?
Over [174]
The  volume  of  0.160    m   Li2S  solution  required  to  completely  react  with  130 ml  of 0.160  CO(NO3)2  is calculated   as  below

write the  reacting  equation

Co(NO3)2 +  Li2S = 2LiNO3  +  COS

find the    moles  of CO(NO3)2  = molarity  x  volume

=  130 ml  x  0.160=20.8  moles

since the reacting moles between CO(NO3)2  to LiS  is   1:1  the  moles of LiS  is  also  20.8  moles

volume  of Lis  is  therefore =  moles of Lis/ molarity  of LiS

=  20.8/0.160 =  130 Ml
3 0
3 years ago
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