Which coefficient correctly balance the equation CaO + H2O -> Ca(OH)2
1 answer:
For the equation that we are given:
→
We see that on the reactants side we have:
Ca: 1 mol
O: 2 mol
H: 2 mol
And then we see that on the products side we have:
Ca: 1 mol
O: 2 mol
H: 2 mol
Therefore since we have equal moles of each of the elements on both sides of the equation, this equation is balanced how it is.
So the correct coefficients for this equation are: B) 1, 1, 1.
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Answer:
The standard heat of formation of Compound X at 25°C is -3095.75 kJ/mol.
Explanation:
Mass of compound X = 7.00 g
Moles of compound X =
Mass of water in calorimeter ,m= 35.00 kg = 35000 g
Change in temperature of the water in calorimeter = ΔT
ΔT = 2.113°C
Specific heat capacity of water ,c= 4.186 J/g °C
Q = m × c × ΔT
Heat gained by 35 kg of water is equal to the heat released on burning of 0.100 moles of compound X.
Heat of formation of Compound X at 25°C:
= -3095.75 kJ/mol