Answer:
2.5 meter per second
Explanation:
momentum = mass multiplied by velocity
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Mass of Neon : = 24.21564 g
Given
1.2 moles of Neon
Required
mass of Neon
Solution
The mole is the number of particles contained in a substance
1 mol = 6.02.10²³
Moles can also be determined from the amount of substance mass and its molar mass
Mol = mass : Molar mass
so mass of Neon(MM=20,1797 g/mol) :
= mol x MM
= 1.2 x 20,1797
= 24.21564 g
Select one:
a. 354 kJ of energy will be given off by the reaction
b. 354 kJ of energy will be absorbed by the reaction
c. 708 kJ of energy will be given off by the reaction
d. 708 kJ of energy will be absorbed by the reaction