Density of powder 1 = 0.5 g / 45 cm^3 = 1/90 g/cm^3
Density of powder 2 = 1.3 g / 65 cm^3 = 1/50 g/cm^3
Therefore the densities of the two powders are different, hence chemical reaction has occurred.
(note: none of the other choices make sense. In fact, a different density does not necessarily indicate a chemical change, see paragraph below).
Density of powders are not definitive unless they are each of the same size and texture. For example, granular sugar, rock sugar, and icing sugar all have different densities. I would conclude that this experiment does not lend to a reliable answer.
Answer:
Just gonna take this at free points and yes you are right but I am confused on what you wanted us to do
Density is mass over volume. Density is also a charecteristic property wich defines a substance and two different substance cant have the same charasteristic property.
Answer:
potential energy is the ability to do work
Answer:
1.A.) woman whose father was a United States citizen
2. A.) demonstrate the ability to read, write, and speak English
C.) pass a citizenship exam that tests one’s understanding of U.S. civics
D.) lawfully reside in the United States for at least five years
Explanation:
When you are born to at least one whom was a U.S citizen at time of birth then you automatically acquire U.S citizenship through acquisition process.This is not affected by the place of your birth maybe in the U.S or in another country.This claim is also true for foreign born adoptees to the United States.
A foreign born individual who is not automatically entitled to the United States citizenship can obtain this state through the naturalization procedure.It involves fulfilling the naturalization requirements such as being of the age 18 and above, being a permanent residence of the U.S for at least 5 years, being able to read, write and speak English, having basic knowledge of the U.S civics understanding, and but not least to being of good moral character.
