Through J.J. Thomson's creative mind, he proposed the "Plum Pudding Theory" which shows the scientific model of an atom wherein electrons are attached to the body of the atom as if it was like a raisin in a pudding. He also consolidates the properties of atoms at that time such as: electrons are negatively charge particles and and atom has neutral charge.
Answer:
Since the water is heavier, it displaces the lighter ice,
Explanation:
hope that helps
Answer:
wind
Explanation:
there is no explanation for wind
Answer : The enthalpy of reaction is, -521.6 kJ/mol
Explanation :
According to Hess’s law of constant heat summation, the heat absorbed or evolved in a given chemical equation is the same whether the process occurs in one step or several steps.
According to this law, the chemical equation can be treated as ordinary algebraic expression and can be added or subtracted to yield the required equation. That means the enthalpy change of the overall reaction is the sum of the enthalpy changes of the intermediate reactions.
The main chemical reaction is,
The intermediate balanced chemical reaction will be,
(1)
(2)
Now we are multiplying reaction 1 by 2 and reversing reaction 2 and then adding all the equations, we get :
(1)
(2)
The expression for enthalpy of main reaction is,
Therefore, the enthalpy of reaction is, -521.6 kJ/mol
The answer is d. Igneous rocks is indeed formed through the cooling of molten lava on the surface, making extrusive igneous rock. However, if those underground pockets of magma were to cool underneath the surface, because of its force to, it will still form intrusive igneous rock, slowly cooling.