Answer:
0.165
Explanation:
Feel free to let me know if this is wrong because I have seen the question before but cannot really remember!
Answer:
B. It is formed by a repeating pattern of a single type of atom
Explanation:
i think thats answer may i get brainlest?
2H2O --> 2H2 + O2
The mole H2O:mole O2 ratio is 2:1
Now determine how many moles of O2 are in 50g: 50g × 1mol/32g = 1.56 moles O2
Since 1 mole of O2 was produced for every 2 moles of H2O, we need 2×O2moles = H2O moles
2×1.56 = 3.13 moles H2O
Finally, convert moles to grams for H2O:
3.13moles × 18g/mol = 56.28 g H2O
D) 56.28
Answer:
Mass = 132 g
Explanation:
Given data:
Mass of CO₂ formed = ?
Mass of C burnt = 36 g
Solution:
Chemical equation:
C + O₂ → CO₂
Number of moles of carbon:
Number of moles = mass/molar mass
Number of moles = 36 g/ 12 g/mol
Number of moles = 3 mol
now we will compare the moles of carbon and carbon dioxide.
C : CO₂
1 : 1
3 : 3
Mass of CO₂:
Mass = number of moles × molar mass
Mass = 3 mol × 44 g/mol
Mass = 132 g
Answer:
A.
Explanation:
A decomposition reaction is when one reactant (the substances to the left of the arrow in the reaction) breaks apart into two or more products (the substances to the right of the arrow).
Because KClO3 is breaking down into KCl and O2, it's a decomposition reaction.
