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marusya05 [52]
3 years ago
10

What energy is required for a reaction to occur?

Chemistry
1 answer:
kirza4 [7]3 years ago
5 0

Answer:

B. Activation Energy

Explanation: A P E X

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Neon is an inert gas and has the atomic number of 10. Which of the following correctly depicts its electron configuration? 1s22d
Cloud [144]
10 Ne:

1s², 2s², 2p⁶

Answer C

hope this helps!
8 0
3 years ago
How many moles is in 2.52*10^24 molecules of water?
nataly862011 [7]
Hi friend
--------------
Your answer
-------------------

Water = H2O

Number of molecules in one mole of water = 6.022 × 10²³ [Avogadro's constant]

Given number of molecules = 2.52 × 10²³

So,
------

Number of moles =
\frac{2.52 \times 10 {}^{24} }{6.022 \times 10 {}^{23} }  \\  \\  = 4.184 \: (approximately)

HOPE IT HELPS
3 0
3 years ago
Is H20 a balanced equation?
Nat2105 [25]

Answer:

no it's not

Explanation:

because H2+O2=H2O

so the balanced form is

H2 +O2=2H2O

8 0
3 years ago
Geothermal energy is possible where there is <br><br>a.wind<br>b.oil<br>c.coal<br>d.magma
Leviafan [203]

D magma hope this helps

8 0
4 years ago
calculate the mass of HNO3 obtained when 20.0g of KNO3 reacts completely with excess concentrated H2SO4
iragen [17]

The mass of HNO3 obtained is 12.46 g from the given reaction.

The chemical reaction is :

Potassium Nitrate + Sulphuric acid ------> Potassium Bisulphate + Nitric acid.

The above reaction is basically used for the making of nitric acid.

Less than 200 degree celcius the Nitric acid if more than 200 degree celcius then it will form Potassium Sulphate.

Now,

1 mol of KNO3 reacts with1 mol of concentrated H2SO4 to give 1 mol HNO3

Molar Mass of KNO3 = 101.1 g

Molar mass of H2SO4 = 98.07 g

Mass of H2SO4 that can react with 20 g of KNO3 = (20 g* 98.07 g )/ 101.1 g

= 19.4 g

Molar mass of nitric acid= 63.01 g

Hence mass of nitric acid  produced by 20 g of KNO3 = (20 g * 63.01 g ) / 101.1 g = 12.46 g

To know more about Nitric acid here :

brainly.com/question/20934865?referrer=searchResults

#SPJ1

8 0
1 year ago
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