What volume of 0.250 mol/L sulfuric acid, H2SO4(aq) is needed to react completely with 37.2 mL of 0.650 mol/L potassium hydroxide, KOH(aq)?

Which statement best describes how atoms combine to form sodium chloride (nacl)? a. a positively charged sodium ion and a positively charged chlorine ion form an covalent bond. b. a positively charged sodium ion and a negatively charged chlorine ion form an covalent bond. c. a positively charged sodium ion and a positively charged chlorine ion form an ionic bond. d. a positively charged sodium ion and a negatively charged chlorine ion form an ionic bond.

What overall charge must all compounds have

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