Which of the following is an example of a physical change? A. A matchstick changes color when it burns.
B. Bubbles form when vinegar and baking soda are mixed.
O C. A solid forms when two clear liquids are mixed.
D. A piece of steel bends when it is pounded with a hammer.
SUBMIT

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.

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What is the molarity of the solution produced when 145 g of nacl is dissolved in sufficient water to prepare 2.75 l of solution?