This I believe would be double covalent bonds
that is a true statement can you mark me as brainliest please.
Answer:
Demonstration 1 showed a chemical change because a new gaseous substance was formed, and demonstration 2 showed a physical change because liquid water became water vapor.
Explanation:
Chemical changes alter the chemical makeup of a subject, and a physical change only alters the appearance of a subject, not the chemical makeup.
Arsenic
Arsenic has an atomic mass of 74.92, is a well known poison, and a metalloid.
-101, K=C+273 so in this you would subtract 273 from 172
