Tell how many moles of each element are in the following amounts of each compounda. 3 moles nh3b. 0.25 moles h2oc. 5.0 moles h2so4d. 0.75 moles ca(no3)2

In a water molecule, hydrogen and oxygen are held together by a(an) bond. a) double covalent b) ionic c) nonpolar covalent d) hydrogen e) polar covalent

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?

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.