Answer:
96500 C
Explanation:
The equation of the electrolytic process is;
4OH^-(aq) -----> 2H2O(l) +O2(g) + 4e
From the reaction equation; one mole of oxygen is liberated by 4 moles of electrons.
If one mole of electrons= 96500 Cmol-1, then;
1 mole of oxygen is liberated by 4×96500 Cmol-1
0.25 moles of oxygen will be liberated by 0.25 × 4×96500/1 = 96500 C
Therefore, 0.25 moles of oxygen is liberated by 96500 C
I believe option B. 25 N should be correct
Answer:
Plants slow down water as it flows over the land and this allows much of the rain to soak into the ground. Plant roots hold the soil in position and prevent it from being blown or washed away. Plants break the impact of a raindrop before it hits the soil, reducing the soil's ability to erode.
Explanation:
Answer:
The object will move in the opposite direction of the force applied. - 2.
Answer:
See the answer below
Explanation:
After seeing an object on a slide at the low-power objective of the microscope and it disappears on changing to high power, the following can be done to resolve the problem
1. <em>Drop a few drops of immersion oil on the slide and view again under high the power objective.</em>
2. <em>If the object is still not visible after the action above, return the microscope to the low-power objective and make sure the object is refocused and centered. Then carefully change back to the high power objective and use the fine adjustment to bring it into focus.</em>