The best plan to solve the problem of health problems among people, because of the contaminated surface water is to collect the runoffs in retention ponds for isolation and recovery of contaminants. Correct answer: D
This is tn eonly option from the given that is the most efficient and prodcutive way to solve this problem.
An uncharged body is a body that has equal magnitude of positive as well as negative charge on it. So as soon as some charged body is placed near it, the charged body induces negative charges on the uncharged body.
Answer:
False
Explanation:
Great educated guess energy and matter is different
Answer:
When traveling behind other vehicles, there should be at least a four second space between your vehicles. When the car in front of you passes a stationary object, slowly count to yourself. If you pass the object before the allotted time, you should back off. When traveling at night or inclement weather, these times should be doubled.
Don't talk on a cell phone while driving. Phones detract from your ability to concentrate on the road and increase your chance of a collision by nearly 400%. If you must use the phone, pull over to a safe, well-lit parking lot and place your call there. After completing your call you may continue on your way.bey all speed limits and signs.
Answer: a) 
electrons are present is 7.74 L of water.
b)
is the net charge of all these electrons
Explanation:
a) Molar mass of the water = 18 g/mol
Volume of water = 7.74 L
Density of water = 1000 g/L
Mass of water in 7.74 L of water :
Mass of the water = 7740 g
Moles of water =
molecules
Number of water molecules in 430 moles:
molecules
1 molecule water contains = 10 electrons
Then
electrons
electrons are present is 7.74 L of water.
b) The net charge of all these electrons:
Charge on 1 electron =
The net charge of all these electrons:
is the net charge of all these electrons
