What is the name of the test used to find out the gas produced when calcium reacts with sulfuric acid? * 1.Lime Water
2.lighted splint
3.litmus paper
4.glowing splint

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

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

When a scientific theory has been tested and proved by the scientific community, it becomes a law