객관식
Gasoline's ability to become a vapor is best described by which of the following terms?
105
views
1. Intro to General Chemistry
Chemical Properties
객관식
In the chemical equation C_7H_{16} (l) + 11O_2 (g) → 7CO_2 (g) + 8H_2O (l), what do the symbols in parentheses (l) and (g) indicate?
A
They indicate the physical states of the substances: (l) for liquid and (g) for gas.
B
They indicate the type of chemical bond present in each compound.
C
They indicate the temperature at which the reaction occurs.
D
They indicate the concentration of the substances in solution.
검증된 단계별 안내1
Identify the symbols in parentheses next to each chemical formula in the equation: (l) and (g).
Recall that in chemical equations, symbols in parentheses indicate the physical state of each substance involved in the reaction.
Understand that (l) stands for liquid, meaning the substance is in the liquid phase under the reaction conditions.
Recognize that (g) stands for gas, meaning the substance is in the gaseous phase under the reaction conditions.
Conclude that these symbols do not indicate bond types, temperature, or concentration, but specifically the physical states of the substances.
관련 영상
관련 실천
