What is the total number of atoms in 2.51 moles of argon?

How does chemistry affect our world? a. chemicals makes our world more polluted. b. chemicals keeps us healthy. c. chemicals can or hurt our world. d. chemicals make our world safe to live in.

When the volume and number of particles of a gas are constant which of the following is also constant

Achef makes salad dressing by mixing oil, vinegar, and spices, as shown. which type of matter is the salad dressing?