Answer:
Correct answer:
The equilibrium expression is defined as the ratio of the concentration of products divided by the concentration of the reactants. Each reactant or product is raised to the power corresponding to its coefficient in the balanced chemical equation.
Explanation:
Lucy and her bike together have a mass of 120 kg. She slows down from 4.5 m/s to 3.5 m/s. How much kinetic energy does she lose?
0.69moles
Explanation:
Given parameters:
Number of atoms = 4.14 x 10²³atoms
Atom = Na
Unknown:
Number of moles of Na atom in it = ?
Solution:
A mole of a substance is the quantity of substance that contains the avogadro's number of particles.
1 mole = 6.02 x 10²³particles
To solve this problem, simply use the expression below;
Number of moles = ![\frac{number of particles }{6.02 x 10^{23} }](https://tex.z-dn.net/?f=%5Cfrac%7Bnumber%20of%20particles%20%7D%7B6.02%20x%2010%5E%7B23%7D%20%7D)
Input the parameters;
Number of moles =
= 0.69moles
learn more;
Number of moles brainly.com/question/1841136
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Reactants are NaHCO3 and HC2H3O2 because they are on the left side of the arrow, aka they’re what’s going in to make the products. NaC2H3O2, H2O and CO2 are the products bc they’re on the right side of the arrow, aka they are the results of the reactants combining