The speed of light in four different materials is shown below: material speed of light in thousand miles per second a 140 b 78 c 186 d 124 which statement is correct? material b is the least dense. material c is the most dense. material a is denser than material d. material d is denser than material a.

Iknow the answer is a but i don't know why

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

One of the few xenon compounds that form is cesium xenon heptafluoride (csxef7). how many moles of csxef7 can be produced from the reaction of 13.0 mol cesium fluoride with 12.5 mol xenon hexafluoride? csf(s) + xef6(s) csxef7(s)