Oxidation is when a substance gains oxygen molecules. For example when hydrogen reacts with oxygen it forms H₂O. The H₂ has been oxidised.
7. An exothermic reaction
8. The bonds are forming
Answer:
1) All gases consist of large amount and numbers of tiny particles that are far apart from each other and also relative to their size.
2) The collisions between gas particles and gas particles against container walls is refer to as elastic collision.
3) All gas particles are in a continuous random and rapid motion. They possess kinetic energy which is energy of motion.
4) There are no attractive force between gas particles.
5) The temperature of a gas depends on the average kinetic energy of the gas particle.
Explanation:
Answer: The ΔH of the reaction if 51.3 g of
reacts with excess
to yield 1387.6 kJ is 432.27kJ
Explanation:
To calculate the moles, we use the equation:
moles of

As
is present in excess,
is the limiting reagent as it limits the formation of product.
If 3.21 moles of methane releases heat = 1387.6 kJ
Thus 1 mole of methane release=
The total number of valence electrons is eight in the lewis structure of H2O i.e. water molecule.
One electron each from the two hydrogen atoms and six electrons from the oxygen atom. The two bonds are formed between two hydrogen and oxygen atom. This is shown in the figure below.