gennhill14
07.05.2020 •
Biology
Which of the following is a chemical change?
a. silver tarnishing as the silver metal reacts with sulfur
b. soil drying as water evaporates
c. a solution of salt water being diluted as water is added to it
d. a rock eroding as the wind removed particles from it
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Ответ:
Silver tarnishing as the silver metal reacts with sulfur
Explanation:
It is a chemical reaction because the metal is changing its chemical composition due to the sulfur
Ответ:
C.
Explanation:
Volume makes up the entire object, so the object (rock) with the most volume would be bigger.