Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

Idon’t understand this page, can someone ?

Asap! how do you lengthen a pattern piece? (family and consumer science, sewing)

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.