we have to calculate number of moles in 8gram of oxygen by the equation given mass/molar mass.then we would get that 0.25moles are in 8 g of oxygen molecules.then multiply this to avagadro number .then we could get the number of particles.
You'll need some memorized numbers:
1 mole = 6.022x 1023 particles.
Oxygen gas = 2 atoms (because it always comes as a diatomic molecule)
Multiply them all out, and you'll get your answer. Remember significant figures.
8 molecules of oxygen contain 16 atoms.
0.25
It is a synthesis reaction.
how many atoms are there in magnesiumoxide 2 atoms are in magnesium 2 atoms are in magnesium
2C5H12 +11 O2 ------------->10 CO +12 H2OHydrocarbon combustion produces water(H2O) and carbon dioxide(CO2)C5H12 + 8O2 __ 5CO2 + 6H2O
The correct answer is: C5H12 + 8O2 5CO2 + 6H2O.
2 atoms
S8 + 8o2 --> 8so2
It is a synthesis reaction.
It's an Oxidation-reduction
I get 2C6H14+19O2------->12CO2+14H2O
C5h12 + 8o2 --> 5co2 + 6h2o
There are 20 atoms and there are 6 Carbon atoms, 8 Hydrogen atoms, 6 Oxygen atoms.
how many atoms are there in magnesiumoxide 2 atoms are in magnesium 2 atoms are in magnesium
2C5H12 +11 O2 ------------->10 CO +12 H2OHydrocarbon combustion produces water(H2O) and carbon dioxide(CO2)C5H12 + 8O2 __ 5CO2 + 6H2O
The correct answer is: C5H12 + 8O2 5CO2 + 6H2O.
10
A molecule is a combination of atoms. To know how many atoms are in one molecule, you have to find out what atoms are in the molecule.
there are fifteen atoms