Nitrogen gas has the chemical formula N2. One molecule of nitrogen gas is made up of two atoms of nitrogen.
The correct option is C.
Explanation:
Nitrogen gas has the chemical formula 
, which means that two atoms of nitrogen element combined to form nitrogen gas.
The combination of two atoms of element nitrogen produce dinitrogen atom.
Dinitrogen is the nitrogen gas usually present in atmosphere of the earth in abundance.
2 atoms of nitrogen element
N + N =
the gas is colorless and odorless formed at standard condition of temperature and pressure. The two nitrogen atoms are tightly bonded with triple bonds in between the atoms.
<span>44.01 g/mol hope it helps</span>
D sodium
I just learned this in my class today;)
Answer: 145 L
Explanation:
To calculate the new pressure, we use the equation given by Boyle's law. This law states that pressure is directly proportional to the volume of the gas at constant temperature.
The equation given by this law is:
where,
are initial pressure and volume.
are final pressure and volume.
We are given:
Putting values in above equation, we get:
Volume change = (219-74.0 )L = 145 L
Thus the volume CHANGE that occurs is 145 L
Answer:
3 H⁺(aq) + 3 OH⁻(aq) ⇒ 3 H₂O(l)
Explanation:
Let's consider the molecular equation for the neutralization between hydrochloric acid and aluminum hydroxide.
3 HCl(aq) + Al(OH)₃(aq) ⇒ AlCl₃(aq) + 3 H₂O(l)
The complete ionic equation includes all the ions and the molecular compounds.
3 H⁺(aq) + 3 Cl⁻(aq) + Al³⁺(aq) + 3 OH⁻(aq) ⇒ Al³⁺(aq) + 3 Cl⁻(aq) + 3 H₂O(l)
The net ionic equation includes only the ions that participate in the reaction and the molecular compounds.
3 H⁺(aq) + 3 OH⁻(aq) ⇒ 3 H₂O(l)
