You carefully weigh out 17.00 g g of CaCO 3 CaCO3 powder and add it to 68.85 g g of HCl HCl solution. You notice bubbles as a reaction takes place. You then weigh the resulting solution and find that it has a mass of 78.88 g g . The relevant equation is CaCO 3 (s)+2HCl(aq)→H 2 O(l)+CO 2 (g)+CaCl 2 (aq) CaCO3(s)+2HCl(aq)→H2O(l)+CO2(g)+CaCl2(aq) Assuming no other reactions take place, what mass of CO 2 CO2 was produced in this reaction?
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
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You carefully weigh out 17.00 g g of CaCO 3 CaCO3 powder and add it to 68.85 g g of HCl HCl solution. You notice bubbles as a reaction takes place. You then weigh the resulting solution and find that it has a mass of 78.88 g g . The relevant equation is CaCO 3 (s)+2HCl(aq)→H 2 O(l)+CO 2 (g)+CaCl 2 (aq) CaCO3(s)+2HCl(aq)→H2O(l)+CO2(g)+CaCl2(aq) Assuming no other reactions take place, what mass of CO 2 CO2 was produced in this reaction? |
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