How do you get a little 2 on Microsoft Word that is at the.
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A word equation should state the reactants (starting materials), products (ending materials), and direction of the reaction in a form that could be used to write a chemical equation. There are some key words to watch for when reading or writing a word equation.
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Oxygen is prepared in lab generally in two ways either by the application of heat or no application of heat. Using heat: Oxygen in lab is prepared by heating the mixture of powdered potassium chlorate and manganese dioxide in the ratio 4:1 in a hard glass test tube. The oxygen gas is observed in a gas jar through the downward displacement of water.
For an example, if you were to write the reaction that produces water in a sentence, you would say: Hydrogen added to oxygen yields water. Write down your product and reactants. Make sure that your reactants are on the left side of your equation and your products are on the right. The water example would look like this.
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Practice writing chemical equations from word problems and balancing equations Examples: 1. Ammonium nitrate decomposes explosively to form nitrogen, oxygen, and water vapor.