The usefulness of mendeleev's periodic table was confirmed by a. the discovery of subatomic particlesb. the immediate acceptance by other scientists c. the discovery of elements with predicted properties d. the discovery of elements in the

Why is nh3 classified as a polar molecule

What is the percentage composition of carbon in the compound ch4

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal. b. he is determining chemical properties that are sufficient to identify the metal. c. he is determining physical properties that are insufficient to identify the metal. d. he is determining chemical properties that are insufficient to identify the metal.