Round 51.32975248 to the requested number of significant figure a. 2 significant figures 5 c. 6 significant figures b. s significant figures d. 7 significant figures

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

What is the mass of 0.46 mol of mgcl2

In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never