Explain why there was a reaction between zinc metal and a salt solution of copper sulphate please help me​

What are transitions between a liquid and a solid called? identify which way they are transitioning

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

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.