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Ilia_Sergeevich [38]
3 years ago
8

Help need fast !!!!!!

Chemistry
2 answers:
sattari [20]3 years ago
5 0

Answer:

Sodium oxide NA2O

2) N8CL

3) HO2

4) LISO3

Explanation:

blondinia [14]3 years ago
3 0

Answer:

Sodium oxide NA2O

2) N8CL

3) HO2

4) LISO3

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Identify the property of the substance that is changing. A. composition B. volume C. boiling point
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Property of Volume changes.

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For a steel stack that exhausts 1,200 m3/min of gases at 1 atm and 400 k, calculate the inner diameter if you are designing for
bonufazy [111]

The inner diameter for a steel stack that exhausts 1,200 m3/min of gases at 1 atm and 400 k is 1.45 m

<h3>What is Stack Height ?</h3>

Stack height means the distance from the ground-level elevation at the base of the stack to the crown of the stack.

If a stack arises from a building or other structure, the ground-level elevation of that building or structure will be used as the base elevation of the stack.

Given is a steel stack that exhausts 1,200 cu.m/min of gases

P= 1 atm and

T= 400 K

maximum expected wind speed at stack height of 12 m/s

The formula for the diameter of chimney

\rm d=\sqrt{\dfrac{4Q}{\pi v} }

Q =1200 cu.m/min

= 1200 * 0.0166 = 19.92 cu.m/sec

Velocity = 12m/s

\rm d=\sqrt{\dfrac{4\times 19.92}{3.14*12} }\\

d= 1.45 m

Therefore The inner diameter for a steel stack that exhausts 1,200 m3/min of gases at 1 atm and 400 k is 1.45 m.

To know more about Stack Height

brainly.com/question/24625453

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8 0
2 years ago
What is the mass of Ca(NO3)2?
Solnce55 [7]

Ca=40.07841 ,Nitrogen=14.006722 ,Oxygen15.99943
molar mass= (1xMW of Ca)+(2xMWof N)+(6x MW of oxygen)
Molar mass (molecular weight) of Ca(NO3)2 is 164.0884 g/mol


7 0
3 years ago
The products have more energy than the reactants..does that describe an exothermic reaction?
WARRIOR [948]
Yes...yes it does describe an exothermic reaction
4 0
3 years ago
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