Copper sulfide is formed when copper and sulfur are heated together. In this reaction, 127 g of copper reacts with 41 g of sulfur. After the reaction is
complete, 9 g of sulfur remains unreacted. What is the mass of copper sulfide
formed?

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

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

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !