Changes to a substance that do not involve a permanent reordering of atoms are know as question 1 options: endothermic changes. physical changes. chemical changes. irreversible changes.

Answer from each drop-down menu. e characteristics of a borane molecule (bh). the lewis structure and table of electronegativities are given olecular shape is and the molecule is reset next erved. search e a

What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will

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.