Alumínio = 2,70 g/cm3 Diamante = 3,5 g/cm3 Chumbo = 11,3 g/cm3 Mercúrio = 13,6 g/cm3 Misturados com água em um copo, qual deles ficaria no fundo dele?

Simple harmonic motion wind energy circulation best answer from the choices

Chromium  +  hydrogen sulfate  =  chromium(iii) sulfate  +  hydrogenso then it will be  a. cr + h2so4? cr2(so4)3 + h2 

Electrical charge is measured in coulomb.(c). the amount of an electrical charge that moves in a circuit depends on the current flow and how long it flows for. a current of 10 a flows for 30 s,then 10 x=300 coulombs of electrical charge moves