1
8
1
2
Covalent
6
Inner
Sorry don’t understand the last question
False because a compound is one or more elements
133.0873 g/mol
(NH4)3PO3 - molar mass
Answer:
There are five signs of a chemical change:
Colour Change.
Production of an odour.
Change of Temperature.
Evolution of a gas (formation of bubbles)
Precipitate (formation of a solid).
Answer:
Chemical name for As2S3 is Arsenic sulfide
Explanation: