Which is more electronegative: nitrogen, phosphorus, carbon, or silicon?

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.

Predict the products butane (c4h10) + oxygen —>

How do you convert 4 mmol of bromobenzene to ml?