Which of the following is a physical change?

A. striking a match

B. cellular respiration

C. sea water drying up and leaving a salt residue

D. baking a cake

Question

Which of the following is a physical change?  


  A.   striking a match  


  B.   cellular respiration  


  C.   sea water drying up and leaving a salt residue  


  D.   baking a cake

wolfe8 · Answer

First of all, welcome to OpenStudy. Now, what does a physical change mean?

anonymous · Answer

C... easiest way to look at these is to ask yourself if it can be changed back, if so it's physical if not it's chemical

rina.r · Answer

Physical change occurs when a substance changes shape, size or color.So try to figure out yourself first ...

wolfe8 · Answer

Please refrain from giving the direct answers. I think the definition is enough to help this user :)

rina.r · Answer

yeah let the user try first ..

anonymous · Answer

The user obviously doesn't want to try...

rina.r · Answer

but, now the user got the definition and now he/she can apply the definition in the question..

rina.r · Answer

and their is no point of us arguing here let the user come and decide wht is the right answer since the user is offline..

anonymous · Answer

.... They just want the answers

rina.r · Answer

Ok fine not a big deal, u have given ur answer so just leave it on the user.

haseeb96 · Answer

rina leave that type of people because they can't learn that ....

wolfe8 · Answer

It doesn't make it right for us to just provide the answer either way. OS is for learning, not getting answers. :)

haseeb96 · Answer

yeah u are right

anonymous · Answer

I guess i could just be more like you haseeb and provide incorrect answers... I have a lot to learn can you teach me?

anonymous · Answer

I use this site to get answers. So i provide answers.

anonymous · Answer

C