CO2 and NaCl are both compounds
2.02 x 10²³molecules
Explanation:
Given parameters:
Mass of NH₃ = 5.7g
Unknown:
number of molecules = ?
Solution:
To solve this problem, we need to approach it from the mole point of view.
A mole of any substance is the amount that contains the avogadro's number of particles.
We first find the number of molecules in NH₃ and then proceed to find the amount of particles it contains.
Number moles =
Molar mass of NH₃ = 14 + 3(1) = 17g/mole
Number of moles = = 0.34moles
Number of molecules;
1 mole of of NH₃ = 6.02 x 10²³
0.34 moles = 0.34 x 6.02 x 10²³ = 2.02 x 10²³molecules
learn more:
Number of moles brainly.com/question/1841136
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B. Because inertia is the speed of the object and if the object weighs less, it falls faster :)
Answer:
12CO2 (g) + 12H2O (l) ⇒ C12H24O12 (s) + 12O2
Explanation:
Start by comparing the moles of carbons on the left to number on the right. The number of moles on both side of the arrow should be the same.
Answer:
The environment changes causing the animals to adapt.