In which of the following sequences are the compounds listed in order of decreasing acidity? a. NH3< HC2CH < CH3CH2OH < H2O < CH3COOH
b. CH3CH2OH < NH3< H2O < HC2CH < CH3COOH
c. CH3COOH < CH3CH2OH < H2O < NH3< HCCH
d. H2O < CH3COOH < CH3CH2OH < HC2CH < NH3
e. NH3 < H2O < CH3COOH < HC2CH < CH3CH2OH

Which statement describes how phase changes can be diagrammed as a substance is heated? the phase is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the phase is on the x-axis. the time is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the time is on the x-axis.

The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5