Answer:
mass O2 = 222.5 g
Explanation:
- %wt = ((mass compound)/(mass sln))×100
balance reaction:
∴ %wt H2 = 11 % = ((mass H2)/(mass H2O))×100
∴ %wt O2 = 89 % = ((mass O2)/(mass H2O))×100
∴ mass H2O 250 g
⇒ mass O2 = (0.89)(250 g)
⇒ mass O2 = 222.5 g
Answer:
B. using efficient light bulbs
25.13(5512)
4568%of the time is 56789
5678
4333
There are no options but law of conservation of energy states that energy can’t be created or destroyed.
Answer:
A.
Explanation:
The paper clip allows elictricity to pass, unlike the eraser or paper
