An example of a reversible reaction happens in rechargeable batteries. In some cases, it is possible to reverse a chemical reaction. Generally, chemical reactions convert reactants to products. Reversible Reactions and Dynamic Equilibrium Vinegar consists of acetic acid (CH 3COOH), water and trace amounts of other chemicals, which may include flavorings. The liquid represents an aqueous solution containing sodium ions and acetate ions. Below the formulas for H 2O, Na + CH 3COO - is an illustration of a glass bowl containing a clear liquid. These bubbles represent carbon dioxide gas. Below the formula CO2 is an illustration of bubbles. This illustration represents acetic acid. Below the formula CH 3COOH is an illustration of a glass bottle filled with a clear liquid. The skeletal equation, from left to right, shows that solid NaHCO 3 combines with aqueous CH 3COOH to form CO 2 gas, liquid H 2O, Na + ions and CH 3COO - ions.īelow the formula NaHCO 3 is an illustration of a bag with the label "soda" indicating that it is baking soda. Shown is a skeletal equation with illustrations for the reaction between solid sodium bicarbonate and an aqueous solution of acetic acid that forms carbon dioxide gas, liquid water, positive sodium ions and negative acetate ions. The general form of a skeletal equation is: C and D are the chemical formulas of the products. Here A and B are the chemical formulas of the reactants. It includes the chemical formulas, with a “+” between each chemical formula. Skeleton EquationsĪ skeleton equation is the simple form of a chemical reaction. This is why atmospheric oxygen has a chemical formula of O 2. For instance, oxygen molecules tend to pair up in the air. But in nature, those elements rarely exist as single atoms. The periodic table lists all existent elements. It has a large, circular label with the text "soda" to indicate that it is a bag of baking soda. The far right image is of a white paper bag. By the right image, an arrow points away from the mouth indicating that the person is exhaling. In the left image, an arrow points towards the mouth indicating that the person is inhaling. To the right of this, are two cross sections of a person from the chest up. To the right of this is an illustration of a salt shaker that is half full of salt. On the far left is an image of a water droplet about to hit the surface of water and a splash on the surface of water. Shown are four illustrations and chemical formulas for some common molecules.
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