Answer:
for a i think it is choice 2
for b i think it is the first choice
Explanation:
Answer:
This depicts an electrolytic cell.
1 bulb b and c wouldn't shine if ac. if DC then yes. 2 a would shine and c wouldn't if DC if ac then yes
Answer:
See explanation
Explanation:
11.19:88.81 is a ratio of about 8, meaning that the weight of oxygen is 8 times the weight of hydrogen in water. Since a single oxygen atom has 16 times the weight of a single hydrogen atom, this means that there are 2 hydrogen atoms for each oxygen, which confirms something you already know. Since the proportions stay constant, you know that in a 100g sample of pure water, there will be about 11.19 grams of hydrogen and 88.81 grams of oxygen. Hope this helps!
Normally you would wash it with soap and water so I'm going to say A. soap. If you just rinse your hands with water they may not get all the way clean.