Answer: Arsenic has five valence electrons.
Explanation: Good luck!
Explanation:
Since, aluminium chloride is an eye and skin irritant. Therefore, it is better to follow safety measures while dealing with such a chemical.
Hence, it is good to wear a lab coat while working in a laboratory and wear chemical resistant gloves so that our skin does not come in contact with the chemical.
Also, safety glasses will prevent the eyes if there is spurting of chemical.
Thus, we can conclude that chemical-resistant gloves, a lab coat, and safety glasses will prevent you from coming into contact with the given hazard.
You are made of mostly 6 elements: Oxygen, Carbon, Hydrogen, Nitrogen, Calcium, and Phosphorus. Some of these elements combine to form compounds in your body.
Answer:
2.5×10^20atoms
Explanation:
number of moles= number of particles/Avogadro's constant
number of particles=Avogadro's constant × number of moles
number of particles=(6.02×10^23) × (4.1×10^-4)
number of particles=2.5×10^20
