<span>2 H</span>₂<span> + O</span>₂<span> = 2 H</span>₂<span>O
4 g H</span>₂ ------------ 32 g O₂----------- 36 g H₂O
<span> 8 g H</span>₂ ------------ 64 g O₂------------ ? g H₂O
<span>
Mass of H</span>₂O :
<span>
64 * 36 / 32 =
2304 / 32 = 72 g of H</span>₂O
<span>
hope this helps!
</span>
Answer:
A. 0.0233
Explanation:
according to the equation,
no. of moles of KBrO3 : no. of moles of Br2 = 1 : 3
no. of moles of KBrO3
= ⅓ × 0.0700mol
= 0.0233 (3 sig. fig.)
Electrical energy to heat energy. It is because the first part a dishwasher does is use electrical energy to get prepared to use heat energy, electrical energy comes when all dishes came in and you closed the door, it turns on the machine and lucky electrical will make it begin to heat up the dishes, then comes heat energy.
Answer:
Explanation:
Remark
CH2 provides the basic structure of the hydrocarbon. It will be multiplied by some factor determined by the number of grams / mol. I will use rounded numbers because all periodic tables are slightly different.
Theoretical mass of CH2
1 C = 1 * 12 = 12
2 H= 2 * 1 = 2
Mass CH2 = 14
The multiplier for CH2
56.108 rounded = 56
Multiplier = molar mass (rounded)/Mass CH2
Multiplier = 56/14 = 4
Chemical
(CH2)_4 = C4H8
Answer: C4H8
If a substance is the limiting reactant, then it will be fully consumed by the time the reaction completes because <em />it is the reactant that reacts completely and the reaction cannot proceed further.