Vinegar (acetic acid solution) is a polar substance, whereas olive oil is non polar in nature. Like dissolves like. A polar substance cannot dissolve in a non polar compound. Therefore, vinegar which is polar is not soluble in olive oil, a non polar substance. Hence, in a salad dressing olive oil separates out from vinegar.
Added salt would dissolve in vinegar solution as salt, a polar substance which is chemically, sodium chloride is an ionic substance. It can dissolve in the polar vinegar solution but not olive oil.
Texas has a capital H over it. In weather, a capital red H is an area of high pressure. High pressure areas have sunny, warm weather.
An area with a blue L over it means an area of low pressure and that means stormy weather.
Good luck :) !
Answer: students are the dependent variable and the cartoon are the independent variable
Explanation: because the cartoon are being the same ever and the opinion of the students is what changes
Iron filings can be attracted by the magnet whereas salt can not. So the mixture can be separated by a magnet