HELP ME PLEASE I NEED HELP! Metal rings
and gold
Steel wool
pad
Iron and carbon
Which object represents a heterogeneous mixture?
A. Steel wool
B. Aluminum pans
C. Brass key
D. Metal rings

You have a sample of a gas that occupies a volume of 17ml at -111 degrees celsius. what volume does the sample occupy at 88 degrees celsius? show all work asap

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this