1. What is the mass of 1.54 moles of Na2SO4?

There are main groups in the modern periodic table of elements

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

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.