When two forces act on an object in opposite directions, the net force can be calculated by subtracting the two forces.
<u>Explanation:</u>
- The net/final force by subtracting the two given opposite forces as asked in the above question.
For example: If you keep a bottle on the table, the downward force subtracted from the upward force will be equal to the net force.
- If the net force equals zero then the objects will be balanced, otherwise unbalanced.
For example: In the tug of war when two forces are of different units the force with the greater strength will have an advantage, like if the team on the right is stronger than that of left than the rope will move towards the right.
1) Multiply the correct answer by 1% => 7.80009 * 1/100 = 0.0780009
2) Calculate minimum and maximum values:
a) Maximum: 7.80009 + 0.0780009 = 7.8780909
b) Minimum: 7.80009 - 0.0780009 = 7.7220891
3) Valid range: [7.7220891, 7.8780909]
4) Conclusion: 7.80, 7.730 and 7.80703 are inside the range and are inside the tolerance, while 7.6363, 7.6 and 7.76 are not.
<h2>The molar enthalpy of decomposition of magnesium oxide is 602 kJ.</h2><h3>FURTHER EXPLANATION</h3><h3><u>
Enthalpy is an Extensive Property</u></h3>
Enthalpy is the amount of heat in a system at constant pressure. It is an extensive property. Extensive properties are characteristics that are affected by the amount of substance. Examples of extensive properties are mass and length. The opposite of extensive properties are intensive properties. These are properties that are unique to a substance. They do not vary with the amount. Examples are density and boiling point.
Equations with enthalpy values are called thermochemical equations. The value of the ΔH is specific to the stoichiometric ratio provided in the equation. Therefore, the ΔH value of -1204 kJ is specific for the formation of 2 moles of magnesium oxide. The molar ΔH of formation should then be half of this which is -602 kJ.
<h3><u>
Enthalpy depends on the direction of the reaction.</u></h3>
The direction of the reaction influences the enthalpy of the reaction. If the reaction is reversed, the enthalpy of the reversed reaction is equal in magnitude but opposite the sign of the forward reaction.
In this case, the reverse reaction of the formation of magnesium oxide is its decomposition. Therefore, the decomposition of one mole of magnesium oxide will have an enthalpy of +602 kJ.
<h3>LEARN MORE</h3>
- Learn more about Molar Enthalpy of Combustion brainly.com/question/10936616
- Learn more about Hess' Law brainly.com/question/3194633
- Learn more about Specific Heat Capacity brainly.com/question/12976104
Keywords: Enthalpy of formation, enthalpy of decomposition
The question is: Give the systematic name of 
.
Answer: The systematic name of is diphosphorus trisulfide.
Explanation:
As the chemical formula of given compound is . This sows that there are two phosphorus atoms so a prefix "di" will be added before the name of phosphorus atom.
Whereas there are three sulfur atoms present here. So, a prefix "tri" will be added before naming the sulfur atom. As sulfur is the anion so a suffix '-ide' will be added to its name.
Hence, name of the compound is diphosphorus trisulfide.
Thus, we can conclude that the systematic name of is diphosphorus trisulfide.
