What si unit would you use to measure the amount of electrical currant in a circuit?

What is the relation between concentration of reactants and the rate of chemical reaction?

Which statement is best described as a atom

He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98