What indicates a chemical change? O A. A change in the shape of a substance
O B. A change in volume
O C. A change from a liquid to a gas
O D. A change from one substance to another

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

Select each correct answer. more than one answer may be correct. which of the following is a characteristic of unicellular organisms? they can possess tissues and organs. all of their functions are performed by a single cell. they are usually microscopic. each of their cells is specialized to perform a specific function.

In pqr m< p=60 m< q= 30 and m