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viva [34]
2 years ago
15

a solid form of precipitation that forms when water droplets in a cloud get very cold and collide with other super cold water dr

oplets is known as
Chemistry
1 answer:
Daniel [21]2 years ago
5 0

Answer:

Rain

Explanation:

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What is the pH of a 0.0042 M hydrochloric acid solution?
babymother [125]

Answer:

E) 2.38

Explanation:

The pH of any solution , helps to determine the acidic strength of the solution ,

i.e. ,

  • Lower the value of pH , higher is its acidic strength

and ,

  • Higher the value of pH , lower is its acidic strength .

pH is given as the negative log of the concentration of H⁺ ions ,

hence ,

pH = - log H⁺

From the question ,

the concentration of the solution is 0.0042 M , and being it a strong acid , dissociates completely to its respective ions ,

Therefore , the concentration of H⁺ = 0.0042 M .

Hence , using the above equation , the value of pH can be calculated as follows -

pH = - log H⁺

pH = - log ( 0.0042 M )

pH =  2.38 .

4 0
3 years ago
Why does Play-Doh taste salty?
Damm [24]

Answer:

It's made of salt

Explanation:

The recipe has salt as an ingredient

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What new information can you add to your definition of physical change ?
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Its reversible, soluble, <span>mass, density, color, boiling point, temperature, and volume. </span>
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HELP PLEASE<br>Explain why the elements of group 1 and 7 are quite reactive
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Group 17 is the most readily reduced elements on the periodic table, meaning that they are so close to being a stable elements, only missing 1 electron to complete their valance electron shell. Thus they will essentially react with anything to get that last electron! 

Group 1 elements are extremely reactive because they are the most readily oxidized, they are very close to reaching stability by giving up only 1 electron. Thus they will react with almost anything to give up their electron. 
8 0
3 years ago
How many Earths will we need to have enough resources if the whole world lived like Americans?
Oxana [17]

Answer:

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Explanation:

because yeah

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3 years ago
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