Multiple Choice
As you move down the periodic table to higher period numbers, what happens to the number of electron shells in the atoms?
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2. Atoms & Elements
Periodic Table: Phases
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Which of the following symbols is used to indicate that a chemical is in the gaseous state in a chemical equation?
A
(s)
B
(g)
C
(aq)
D
(l)
Verified step by step guidance1
Understand that in chemical equations, symbols in parentheses after a chemical formula indicate the physical state of the substance.
Recall the common state symbols: (s) for solid, (l) for liquid, (g) for gas, and (aq) for aqueous solution (dissolved in water).
Identify that the question asks specifically for the symbol representing the gaseous state.
Recognize that the symbol for a gas is (g), which stands for 'gas'.
Confirm that (g) is the correct symbol to indicate a chemical is in the gaseous state in a chemical equation.
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