Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneous:. (a) rice pudding, (b) seawater, (c) magnesium, (d) crushed ice.

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’s the scientific notation for the number 6,840,000,000

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )