A tree is chopped down, cut into pieces, and then burned. Which of the following shows the correct order of the changes that have occurred?

physical, physical, physical

physical, physical, chemical

physical, chemical, chemical

chemical, chemical, chemical

Which of the following is an example of a chemical change?

Element A is hammered into a thin sheet

Element B is heated and turns into a liquid

Element C turns rusty as it sits in air

Element D is ground into a fine powder

Question

A tree is chopped down, cut into pieces, and then burned. Which of the following shows the correct order of the changes that have occurred?
		
physical, physical, physical
		
physical, physical, chemical
		
physical, chemical, chemical
		
chemical, chemical, chemical

Which of the following is an example of a chemical change?
		
Element A is hammered into a thin sheet
		
Element B is heated and turns into a liquid
		
Element C turns rusty as it sits in air
		
Element D is ground into a fine powder

sweetburger · Answer

p, p, c so B.

sweetburger · Answer

Element C turning into rust is a chemical change

anonymous · Answer

oh thanks

joannablackwelder · Answer

Chemical changes are changes that happen as a chemical reaction (neutralization, combustion, oxidation, etc.