The reaction between calcium carbonate and hydrochloric acid is shown by the equation below. CaCO3(s) + 2HCl(aq) → CaCl2(aq) + H2O(l) + CO2(g)

Measuring the volume of gas produced against time can be used to calculate the rate of this reaction. Suggest one other way of measuring the rate of this reaction.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

answer; 4 electrons;