Answer:
N³⁻ contain seven protons and ten electrons.
Explanation:
Nitrogen have seven protons and seven electrons. When it an atom lose or gain the electrons ions are formed.
Cation:
When an atom lose the electrons the formed is called cation.
e.g Na⁺ sodium lose one electron and form cation.
Anion:
when an atom gain the electrons the ions formed is called anion.
e.g N³⁻
Nitrogen consist of seven electrons and seven protons. when it gain electrons anions are formed. In given symbol nitrogen consist of 3- charge which means nitrogen gain three more electrons so total electrons will be ten.
Answer:
Partial pressure
Explanation:
the scientists is measuring different pressure, so it would be partial pressure. Hope that this helps you and have a great day :)
Answer:
Substances which are non heat-resistant and volatile organic liquid with flammable vapor.
Explanation:
Bunsen Burner are used as a source of fire in the laboratory for heating up substances. Extra care however should be taken during heating in order to prevent fire or other forms of accidents.
Heating of mind heat resistant substances should be frowned at as the substances may get heated up and melt thereby exposing the liquid substances which may be flammable to fire thereby causing fire outbreak.
Heating of volatile organic liquid with flammable vapor should also be discouraged to prevent fire accidents.
<em>A cylinder of argon gas contains 50.0 L of Ar at 18.4 atm and 127 °C. How many moles of argon are in the cylinder?</em>
<em />
Number moles of Argon : 28.03
<h3>Further explanation</h3>
Given
The volume of gas=50 L
P = 18.4 atm
T = 127+273=400 K
Required
moles of Argon
Solution
Use ideal gas Law :
