The correct answer is class D extinguisher.
The pyrophoric materials refer to the components, which ignite briskly after coming in contact with oxygen. These substances can also be water reactive, where hydrogen and heat get produced. A pyrophoric substance ignites continuously in the air at or below 55 degree Celsius.
While working on pyrophoric substances, a class D fire extinguisher is used. A class D fire extinguisher is utilized on combustible metals like titanium, magnesium, sodium, and others that need an extinguishing medium, which does not react with the burning metal.
Answer:
The pH of the lye in soap is 13.
Explanation:
Gold is a mixture Becasue it contains more than one element
Answer:
Heated copper metal reacts with oxygen to form the black copper oxide. The copper oxide can then react with the hydrogen gas to form the copper metal and water.