Answer:
Explanation:
We are given the amounts of two reactants, so this is a limiting reactant problem.
We know that we will need moles, so, lets assemble the data in one place.
2Mg + O₂ ⟶ 2MgO
n/mol: 2 5
Calculate the moles of MgO we can obtain from each reactant.
From Mg:
The molar ratio of MgO:Mg is 2:2
From O₂:
The molar ratio of MgO:O₂ is 2:1.
Answer:
Heat of vaporization.
Explanation:
the amount of energy needed to change the specific amount or gram of liquid in to gas phase is called heat of vaporization.
In this liquid is converted into gas phase as because after the boiling point addition of more energy will cause breakage of bonds present in between the liquid molecules which results in the vaporization of liquid.
Answer:
A
Explanation:
Both suspect A and the note has the same number of spots.
Answer: Option (b) is the correct answer.
Explanation:
Vapor refers to the conversion of liquid state of a substance into gaseous state or conversion of a solid state into gaseous state.
Density of ice (solid state of water) is less than the density of liquid state of water. This is because there are spaces present in the crystal lattice of ice due to which it has less mass.
As a result, it has low density and hence, it floats on the surface of water.
Thus, we can conclude that the statement Solid water (ice), unlike most substances, is denser than its liquid form (water), is false.
Carbon dioxide is formed as waste product
