Respuesta:
1.50 moles
Explicación:
Paso 1: Escribir la ecuación química ajustada para la descomposición del carbonato de calcio
CaCO₃ ⇒ CaO + CO₂
Paso 2: Calcular los moles correspondientes a 150 g de CaCO₃
La masa molar de CaCO₃ es 100.09 g/mol.
150 g × 1 mol/100.09 g = 1.50 mol
Paso 3: Calcular los moles de CO₂ producidos a partir de 1.50 moles de CaCO₃
La relación molar de CaCO₃ a CO₂ es 1:1.
1.50 mol CaCO₃ × 1 mol CO₂/1 mol CaCO₃ = 1.50 mol CO₂
When a lid is placed on a pot of boiling water, water drops form all over the lid's inner surface. The vapors of water that are formed up on boiling escape in to the surroundings when there is no lid on the pot. When the pot is covered with a lid the gaseous water molecules condense on the cooler inner surface of the lid to form liquid water droplets. So, the best statement that describes the change in water vapor molecules as they change to liquid, a phenomenon called condensation, is that the change here is a physical change.
265g solution x (84.5g Fe(NO3)2 / 100g solution) x (1 mole Fe(NO3)2 / __g Fe(NO3)2) x (3 moles Fe(s) / 3 moles Fe(NO3)2) x (__g Fe / mole Fe) = __g Fe
<span>plug in molar mass of Fe(NO3)2 and Fe and calculate</span>
These elements show variable oxidation states because their valence electrons are in two different sets of orbitals, that is (n-1)d and ns. The energy difference between these orbitals is very less, so both the energy levels can be used for bond formation. Thus, transition elements have variable oxidation states.
Mn−3d54s2 configuration shows highest oxidation state +7.
<h3 /><h3>Why do transition metals have more than one oxidation state?</h3>
Transition metals can have multiple oxidation states because of their electrons. The transition metals have several electrons with similar energies, so one or all of them can be removed, depending the circumstances. This results in different oxidation states.
<h3>How do you know which oxidation state is the highest?</h3>
To find the highest oxidation state in non-metals, from the number 8 subtract the number of the group in which the element is located, and the highest oxidation state with a plus sign will be equal to the number of electrons on the outer layer.
Learn more about oxidation state here:
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brainly.com/question/25551544</h3><h3 /><h3>#SPJ4</h3>