The Yellow Book. The yellow book is the object that reflects light with the longest wavelength. In the visible spectrum the color with the shortest wavelength is violet while the longest is red
Moles = mass/molar mass
moles = 2.3
molar mass = 278
=> mass = moles*molar mass = 639.4g
Here's a short answer
Bye Felicia
Magnesium would be more reactive.