Answer : The coefficient of hydrogen gas in the balanced equation is, 4
Explanation :
Balanced chemical reaction : It is defined as the reaction in which the number of atoms of individual elements present on reactant side must be equal to the product side.
Single replacement reaction : It is defined as a reaction in which the the more reactive element replace the less reactive element.
The balanced chemical reaction will be:
In this reaction, lead is more reactive element than hydrogen so it can displace hydrogen element form its compound and form lead(IV) nitrate.
Thus, the coefficient of hydrogen gas in the balanced equation is, 4
Answer:
0.6 moles of Fe
Explanation:
Given data:
Number of atoms of Fe = 3.612×10²³
Number of moles = ?
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
For example,
1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen
From atoms to mole:
3.612×10²³ atoms of Fe × 1 mole / 6.022 × 10²³ atoms
0.6 moles of Fe
Answer:
1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^2
Explanation:
The outside of most foods turn green because of mold after a period of time it had been left out including cheese
