The number of atoms N = 5.8 x 10²¹
<h3>Further explanation</h3>
A mole is a unit of many particles (atoms, molecules, ions) where 1 mole is the number of particles contained in a substance that is the same amount as many atoms in 12 gr C-12
1 mole = 6.02.10²³ particles
mass of N in 0.82 g of NaNO₃ (MW NaNO₃: 85 g/mol) :
moles of N :
The number of atoms N :
Moles of water atoms = mass/molecular weight = 105/18 = 5.83 mol. Number of moles of hydrogen in water = 2 x moles of water = 11.66. Number of H atoms in water = moles of hydrogen x 6.02 x 10^23 = 7.019 x 10^24 ~ 7.02 x 10^24 atoms. Hope this helps.
Answer:
CH₄ + 2O₂ –> CO₂ + 2H₂O
The coefficients are: 1, 2, 1, 2
Explanation:
CH₄ + O₂ –> CO₂ + H₂O
The above equation can be balance by as follow:
CH₄ + O₂ –> CO₂ + H₂O
There are 4 atoms of H on the left side and 2 atoms on the right side. It can be balance by writing 2 before H₂O as shown below:
CH₄ + O₂ –> CO₂ + 2H₂O
There are 2 atoms of O on the left side and a total of 4 atoms on the right side. It can be balance by writing 2 before O₂ as shown below:
CH₄ + 2O₂ –> CO₂ + 2H₂O
Now, the equation is balanced.
The coefficients are: 1, 2, 1, 2
Is there any multiple choices?
Answer:
It is 6
Explanation:
Because for every carbon there are 6 atoms and in this equation there is only one carbon
