pulomabishnu pulomabishnu

02-02-2017
Chemistry

contestada

sharpening a pencil leaves behind pencil shavings. is sharpening a physical or chemical change

Respuesta :

demitube2014 demitube2014

02-02-2017

Physical damage.

If you burned the pencil, it would be considered chemical.

Answer Link

hadleysimms hadleysimms

02-02-2017

physical

because the pencil is not changing to a new substance, just changing form :)

Answer Link

Otras preguntas

"An evident principle runs through the whole program (the Fourteen Points) that I have outlined. It is the principle of justice to all peoples and nationalities

A pool is being filled at a rate of 20 4/5 gallons every 1/4 of an hour. Express this rate as a unit rate.

Which of the following is an example of a device that transfers one type of energy into another?

How did the United States work to prepare the country to fight in World War l?

True or False Weather is the condition or earth's atmosphere at a certain place and time.

I have to pass pls help

y + 3x = -1 y = 1/2x+ 20

Training and life-long learning are only important for older workers, since younger workers have already received current training via company orientation or fo

? + HCl -> FeCl2 + ? CaO + ? -> Ca(NO3)2 + ? ? + Cu(OH)2 -> CuCl2 + ?

A spring has a spring constant of 800 N/m. How much work must be done to stretch the spring 0.4 m from its unstretched position? A. 64.0 J B. 160.0 J C. 320.0 J