Use the law of conservation of mass to answer the questions. Consider a hypothetical reaction in which A and B are reactants and C and D are products. If 25 g of A completely reacts with 29 g of B to produce 17 g of C, how many grams of D will be produced? mass of D: A 3.2 g sample of sodium hydrogen carbonate is added to a solution of acetic acid weighing 10.1 g. The two substances react, releasing carbon dioxide gas to the atmosphere. After the reaction, the contents of the reaction vessel weigh 12.1 g. What is the mass of carbon dioxide released during the reaction? mass of carbon dioxide:
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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