A piece of platinum metal with a density of 21.5 g/cm3 has a volume of 8.89 cm3. what is its mass?

Write the structure of the ionized form of phenylalanine

How would one know if something is an element?

Definition of metallurgy

Lactic acid results from which of the following?

What is both a way of studying the natual world and a body of knowledge a. math b. science c. history d. art

Which of the following is a characteristic of nonmetals? a. nonmetals are often shiny and hard. b. nonmetals are often malleable. c. Nonmetals do not conduct electricity. d. nonmetals are often ductile.

How does a change in temperature affect the kinetic energy of the particles in a reaction?

Which characteristic best identifies an Arrhenius base

Which statement correctly describes why a compound is a pure substance? O A compound is not a pure substance because each of its molecules is m elements A compound is a pure substance because its molecule cannot be broken O A compound is not a pure

What negative impact did chemistry have on society through the production and use of chlorofluorocarbons?