Answer:
5.82 moles of sodium will produced.
Explanation:
Given data:
Mass of sodium azide = 378.3 g
Moles of sodium produced = ?
Solution:
Chemical equation:
2NaN₃ → 2Na + 3N₂
Moles of sodium azide:
Number of moles = mass/ molar mass
Number of moles = 378.3 g/ 65 g/mol
Number of moles = 5.82 mol
Now we will compare the moles of sodium azide and sodium.
NaN₃ : Na
2 : 2
5.82 : 5.82
Answer:
d = 0.743 g/cm³
Explanation:
Given data:
Mass of cylinder = 65.34 g
Height = 15.60 cm
Radius = 1.34 cm
Density of cylinder = ?
Solution:
Volume of cylinder:
V = πr²h (π = 22/7)
V = 88 cm³
Density of cylinder:
d = m/v
d = 65.34 g / 88 cm³
d = 0.743 g/cm³
Out of the choices given, the behavior of the molecules determines the state of matter for any material. The correct answer will be C.
Explanation:
I thought it was B, but i was wrong... TwT, so now you know not to choose that one, but i belive the right answer was D.
Answer:
The heating and melting of wax
Explanation:
When a candle is burned the wax heats up, but when cooled it hardens and cannot be put back into it original form.
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