Answer:
Giá trị xà phòng hóa hoặc số xà phòng hóa (SV hoặc SN) biểu thị số miligam kali hydroxit (KOH) hoặc natri hydroxit (NaOH)
When a neutral hydrogen atom loses an electron, a positively-charged particle should remain.
Answer:
The mixing of two chemicals may result in the production of a gas which is lost to the air. This will reduce the mass of the chemical mixture, because mass is being lost in a gaseous form.
Answer:
wheres the question or picture
Explanation:
Answer:
Colors are seen by burning of metal salts, for example Sodium chloride makes yellow frame.
It is very common for fireworks to contain Aluminum, Iron, Steal, Zinc or the Magnesium’s dust to create bright light.