Answer:
false
Explanation:
because elements never exist in nature as single isotopes they are always combined
Answer:
A. Sublimation of camphor
Answer:
no, and next time take it right
Explanation:
Hydrogen maybe but I don’t know for sure
The exposure of a person to colloids majorly present in industrial area may results in the accumulation in the body tissue which causes dark deposit in the skin. They are not safe and is dangerous for health which may cause turning of skin blue permanently and it is life long.
Whereas, the colloid of silver nitrate is used to treat skin burns and ulcers but its overuse may result in adverse effect.
