For each of the following, determine whether the observation is primarily a physical change or a chemical change. Explain. a. On a hot day, drops of water collect on the outside of a glass holding iced tea.
b. Clear, colorless lemon juice is added to a glass of iced tea. The tea color changes from brown to yellow-brown.
c. Water is added to a glass of iced tea. The tea color lightens.

A)Physical change

B)physical change

C)physical change

Explanation:

A) there is no new substances formed from the process, so it's still physical change

B)there is no new substances formed from the process, so it's still physical change since tea is still the substance that is formed. The color changes is still physical

C) addition of water to the tea is still the same, tea was formed. no new substances formed,

When a substance pass through a physical change, it has its composition still remains the same, it's molecules can be rearranged. There is no formation of new substance as far

physical change is concerned.

When a substance pass through a

chemical change, it has its molecular composition changed . In a chemical change there is formation of new substances.

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.

it would be a gas formation