Answer: 4 HCl (g) + O₂ (g) → 2 Cl₂ (g) + 2 H₂O (l)
Explanation:
4 moles of hydrogen chloride (note that it is in the gaseous phase, otherwise it would be hydrochloric acid) react with 1 mole of oxygen gas to form 2 moles of chlorine gas and 2 moles of liquid water.
To conform with the law of conservation of mass, the equation must be balanced, this means that there must be the same number of each type of atom on both sides of the arrow.
First you multiply 1.42x1000 to convert from g to mg
then you divide 1420/100 to convert from cm to mm
so the answer is 14.2 mg/mm^2
Explanation:
When an organic compound reacts with oxygen and results in the formation of water and carbon dioxide then this type of reaction is known as combustion reaction.
Therefore, when benzene reacts with oxygen and results in the formation of carbon dioxide and water then we can say that benzene has undergone combustion reaction.
Answer:
As more sodium chloride is dissolved, higher is the boiling point of the solution
Explanation:
The boiling point- the temperature at which the solution boils- will increase as more solute is added. That is a colligative property called <em>boiling point elevation</em>. Colligative propeties are those that depend on the number of particles of solute in a solution. As more solute is added (sodium chloride or NaCl), more particles of solute will be present in the solution and the boiling point of the solution will be higher. The mathematical expression for the boiling point elevation (ΔTb) is the following:
ΔTb= Kb x m
Where Kb is a molal constant and m is the molality of the solution. That expression shows that the elevation of boiling point depends on the concentration of the solute expressed in terms of moles per mass of solution.
Answer: <em> </em>I am not sure about the answer, but I can help explain the difference.
Explanation:
The geocentric model says that the earth is at the center of the cosmos or universe, and the planets, the sun and the moon, and the stars circles around it. <u><em>The early heliocentric models consider the sun as the center, and the planets revolve around the sun.</em></u>