Answer:
12 molecules of carbon dioxide
24 molecules of water
Explanation:
Given parameters:
Number of molecules of methane = 12 molecules
Unknown:
Number of molecules of carbon dioxide = ?
Number of molecules of water = ?
Solution:
The given amount of methane is the limiting reagent in this reaction. By this, we can ascertain the amount of products that will be formed and the extent of the reaction.
We first write the balanced chemical equation for this reaction;
CH₄ + 2O₂ → CO₂ + 2H₂O
From balanced equation;
1 mole of methane produced 1 mole of carbon dioxide
12 molecules of methane will produce 12 molecules of carbon dioxide
Also;
1 mole of methane produced 2 moles of water;
12 molecules of methane will produce (12 x 2)molecules = 24 molecules of water
<span>None. Since it is dominant, both would have to show it to pass in on.</span>
It is c because there are many decades today.
Answer:
Mass = 114.5 g
Explanation:
Given data:
Mass of zinc = 55 g
Mass of ZnCl₂ produced = ?
Solution:
Chemical equation:
Zn + 2HCl → ZnCl₂ + H₂
Number of moles of Zn:
Number of moles = mass/molar mass
Molar mass of Zn = 65.4 g/mol
Number of moles = 55 g/ 65.4 g/mol
Number of moles = 0.84 mol
Now we will compare the moles of Zn and zinc chloride,
Zn : ZnCl₂
1 : 1
0.84 : 0.84
Mass of ZnCl₂:
Mass = number of moles × molar mass
Molar mass of ZnCl₂= 136.3 g/mol
Mass = 0.84 mol × 136.3 g/mol
Mass = 114.5 g
