Is the property of matter in which a substance can transfer heat or electricity

If the mass of the products measured 120g what would the mass of the reactants a. 30g b. 60g c. 120g d. 240g

Which type of substance ionizes partially and gives off hydrogen ions when dissolved in water? a. strong acid b. strong base c. weak acid d. weak base

What effect might melting sea ice have for people who live in coastal areas?