Answer:
CH₄
+ 2O₂
→ CO₂
+ 2H₂O![_{(g)}](https://tex.z-dn.net/?f=_%7B%28g%29%7D)
Explanation:
This kind of reaction in which a hydrocarbon combines with oxygen gas is a combustion reaction. They are mostly used to produce heat energy that can be transformed into other forms of energy.
Every chemical reaction is made up of reactants and products. The combining species on the left hand side are the reactant and the products are the result of the combination.
Note: in writing chemical equations, the state of matter must always be included.
Reactants : Methane gas CH₄
Oxygen gas O₂
Product: Carbon dioxide CO₂
Water vapor H₂O
CH₄
+ 2O₂
→ CO₂
+ 2H₂O![_{(g)}](https://tex.z-dn.net/?f=_%7B%28g%29%7D)
Answer: A) 0.20 L
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.
According to the neutralization law,
![M_1V_1=M_2V_2](https://tex.z-dn.net/?f=M_1V_1%3DM_2V_2)
where,
= molarity of stock
solution = 10.0 M
= volume of stock
solution = ?
= molarity of dilute
solution = 0.50 M
= volume of dilute
solution = 4.0 L
![10.0\times V_1=0.50\times 4.0](https://tex.z-dn.net/?f=10.0%5Ctimes%20V_1%3D0.50%5Ctimes%204.0)
![V_1=0.20L](https://tex.z-dn.net/?f=V_1%3D0.20L)
Therefore, the volume of 10.0 M
solution needed to prepare 4.0 L of 0.50 M
is 0.20 L
Answer:
C.)One electron in each p orbital
Explanation:
In a P-sublevel with 3 electrons, they should be arranged with one electron going into each p-orbitals.
This is in accordance with the Hund's rule of maximum multiplicity.
The rule states that "electrons go into degenerate orbitals or sub-levels(p,d and f) singly before paring up".
Since the p-orbital is 3-fold degenerate with a capacity to accommodate a maximum number of 6 electrons, given 3 electrons, they will follow the Hund's rule in order to fill the orbitals.
So one electron will go in each p - orbitals easily.
Since mole ratio of magnesium to hydrochloric acid is 1:2, the answer is 1 mole of HCL.
Molybdenum Arsenide
I think that’s right but not %100 sure