PrincessAnna00 PrincessAnna00

04-04-2016
Physics

contestada

Is the formation of rust on an iron nail a chemical change or a physical change? Explain your answer.

Respuesta :

jillimitchell jillimitchell

04-04-2016

it is a chemical change because you cannot undo rusting and a new substance- the rust- is formed

Answer Link

Otras preguntas

what are two human uses for mosses?

Explain how engineers and scientists may work together to produce a protein in the lab.

copy this figure onto grid paper. draw line to divide the figure into 4 congruent polygons. how do you know the ploygons are congruent

What are enzymes also known as? What do enzymes do to biological reactions? What do we call the special shape on an enzyme molecule? What are enzymes made of? W

what percentage of 1457 is 898?

find the difference: 7 7/8 - 3 1/4

what did henry hudson claim land for

Work out the number that is halfway between 27 times 38 and 33 times 38.Show your working out aswell.

a piece of wood is 180cm long, Tom cuts it into three pieces in the ratio 2:3:4 Work out the length of the longest piece

why is red onions purple