Your answer is A. When I balance equations, I take inventory of what I have on each side and how many I have. So in the first equation you have 2 Na on both sides. You have 1 Cl on both sides. You have 2 Hydrogens on both sides. You have 1 SO4 on both sides. Therefore, both sides of the equation are equal AKA balanced.
Also, when balancing equations, it's easier to leave your sulfates, sulfites, phosphates, phosphites, etc. in their formula because it's easier to balance.
I hope I was able to help. Best of luck!
Answer:
The reaction is endothermic.
Yes, absorbed
3.06x10¹kJ are absorbed
Explanation:
In the reaction:
2HgO(s) → 2Hg(l) + O₂(g) ΔH = 182kJ
As ΔH >0,
<em>The reaction is endothermic</em>
<em />
As the reaction is endothermic, when the reaction occurs,
<em>the heat is absorbed.</em>
<em></em>
Now, based on the equation, when 2 moles of HgO (Molar mass: 216.59g/mol), 182kJ are absorbed.
72.8g are:
72.8g * (1mol / 216.59g) = 0.3361 moles HgO.
that absorb:
0.3361 moles HgO * (182kJ / 2 moles) =
<h3>3.06x10¹kJ are absorbed</h3>
You need the unit of g however you must convert to moles before you can use the mole ratio to find the moles of iron, you used the molar mass of iron to find the grams of iron. since F e 2 o 3
Answer:
the acceleration i think is 10
Explanation:
5x10=50
POH+pH=14
pH=14-pOH=14-3.53=10.47
pH=-log[H⁺]
[H⁺]=10^(-pH)
[H⁺]=10^(-10.47)=3.4*10(^-11)