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NemiM [27]
2 years ago
13

Which we events will happen if more H, and t, are added to this reaction

Chemistry
1 answer:
Pani-rosa [81]2 years ago
5 0

Answer:

its is letter c is your answer

Explanation:

I hope this help

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A boron atom has ____ electrons at the first energy level and ____ electrons at the second energy level.
mylen [45]

Answer: A boron atom has 2 electrons at the first energy level and 3 electrons at the second energy level.

5 0
3 years ago
What volume will 0.405 g of krypton gas occupy at STP?
Rufina [12.5K]

Answer:

The answer to your question is V = 0.108 L or 108 ml

Explanation:

Data

Volume = ?

mass = 0.405 g

Temperature = 273°K

Pressure = 1 atm

Process

1.- Convert mass of Kr to moles

                  83.8 g of Kr -------------------- 1 mol

                     0.405 g     -------------------  x

                     x = (0.405 x 1) / 83.8

                     x = 0.0048 moles

2.- Use the Ideal gas law to solve this problem

                   PV = nRT

- Solve for V

                      V = nRT / P

- Substitution

                      V = (0.0048)(0.082)(273) / 1

- Simplification

                       V = 0.108 / 1

- Result

                       V = 0.108 L

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