In a cup of water it is a positive and negative charge of zero
Answer:
- The diameter of the molecule of oil is

Explanation:
We define density as

So, the volume for our oil will be




the volume for a cylinder with radius r and height h is

So, we can obtain the height of the droplet of oil as:

the radius is


And this is the diameter of the oil molecule.
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It is a chemical change because the baking soda and vinegar are reacting to form a new product.
It's a Newton Meter Those two are multiplied to get a joule.