Answer:
A variety of peroxide compounds, including carbamide peroxide, hydrogen peroxide, sodium perborate and calcium peroxide, have been used as active ingredients for bleaching materials
Explanation:
A is the correct answer.
The patients mother is experiencing a panic attack due to being provided with unsettling information.
Answer:
A buffer
Explanation:
A buffer is composed of a weak acid and a conjugate base. They are resistant to pH because of equilibrium between the acid and its conjugate base.
Virus culturing because it allows you to take the virus and control it so can put it into a vaccine
