a) False.
Hydroelectric power is a renewable source of energy generated from moving water
b) True.
Oil is a non-renewable source used to make jet fuel
c) False
Propane is a byproduct of natural gas which is a non-renewable source of energy
d) False
Energy from the sun is a renewable source of energy
Ans : b) True
The solution would be like this for this specific problem:
First, we need to write
out the balanced reaction equation for the problem:<span>
"gaseous nitrogen with gaseous hydrogen to produce
gaseous ammonia"
gaseous nitrogen + gaseous hydrogen = gaseous ammonia
gaseous nitrogen = N2(g)
gaseous hydrogen = H2(g)
gaseous ammonia = NH3(g)
In here, I’m going to show you how to balance this from start
to finish:
N2(g) + H2(g) ↔ NH3(g) (basic, unbalanced equation that shows
reactants and product)
N2(g) + H2(g) ↔ 2NH3(g) (balances the nitrogens)
N2(g) + 3H2(g) ↔ 2NH3(g) (balances the hydrogens) =>
Balanced Equation
<span>Next, we write the Keq expression of the balanced reaction:
Keq = (∏[products]^n) /(∏[reactants]^n)
Keq = [NH3]^2 / [[N2][H2]]^3
Therefore, the correct
equilibrium constant expression is Keq = (NH3)2 / (N2)(H2)3.</span></span>
Answer:
The atomic mass of methane (CH4)is 12 amu for the carbon plus 4 x 1 amu for the four hydrogens, for a total of 16 amu. Therefore, the molar mass of methane is 16g.
Mg (s) ---> Mg²⁺ (aq) + 2e
Co²⁺ (aq) + 2e ---> Co(s)
Cu (s) ---> Cu²⁺ (aq) + 2e
Au²⁺ (aq) + 2e ---> Au(s)
Answer:
The water of crystallization of the intermediate analyte is 5.
Seeing as the question does not provide the value for weight of the salt on further heating (at 120° C), you can apply the steps in this explanation to attain that value.
Explanation:
XSO4.7H2O → XSO4 + 7H2O
8.1g 4.9g
8.1 - 4.9 = 3.9g of water evaporated
The ration of water to salt is:
XSO4 : H2O
grams : 4.9 3.2
moles: 72 + 32 + (16×2)=136 (1×2)+ 16= 18
0.036 0.178 (divide both sides by smallest value)
1 4.93
∴ <u>water of crystallization of intermediate is 5.</u>