A 5 grams sample of impure magnesium carbonate is reacted with an excess of hydrochloric acid:MgCO3(s)+2HCL(aq)-MgCl2(aq)+H2 O(l)+CO2(g). How many moles of CO2 are produced and what mass of pure magnesium carbonate would give this volume of carbon dioxide?​

What kind of ion is contained in salts that produce an acidic solution? a positive ion that attracts a proton from water a positive ion that releases a proton to water a negative ion that attracts a proton from water a negative ion that releases a proton to water

In france, grapes are 1.95 euros per kilogram. what is the cost of grapes, in dollars per pound, if the exchange rate is 1.14 dollars/euro? (2.6)

When the mercury level in a barometer decreases that atmospheric pressure has