How to determine the physical state of a compound
Answers
Answer:
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Explanation:
Finding and Identifying States of Matter
Finding and Identifying States of MatterLocate the parentheses after the chemical formula, whether or not it is within the context of an equation.
Finding and Identifying States of MatterLocate the parentheses after the chemical formula, whether or not it is within the context of an equation.Identify the parentheses as (s) for solid, (l) for liquid, (g) for gas, or (aq) for aqueous solution.
Answer:
Chemical equations and the formulas of substances that appear in them are powerful recipes for laboratory experiments, and information about the state of matter of each reactant and product is vital. If you are only told that H2O is a reactant, you will not know whether to add ice -- the solid form -- or liquid water or steam -- the gaseous form. Even if you are not physically performing an experiment, knowledge of the state of matter of each substance is necessary to fully understand the equation, and it can even help you identify the type of experiment. Since identifying states of matter is so important, it is fortunate that the process is very simple.
Finding and Identifying States of Matter
1
Locate the parentheses after the chemical formula, whether or not it is within the context of an equation.
2
Identify the parentheses as (s) for solid, (l) for liquid, (g) for gas, or (aq) for aqueous solution. An aqueous solution is a substance dissolved in water.
3
If no parentheses follow the chemical formula, look for key words or phrases. These are especially helpful in the context of chemical reactions. For example, a precipitate is a solid, a combustion reaction produces water and carbon dioxide in their gaseous forms, and in solubility experiments, ions are in aqueous solution.