Use chemistry in a sentence not love chemistry science chemistry

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

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.

What is the lowest number energy level where a d sublevel is found