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Karna saya orang Indonesia
Lithium is Li
<span>Oxygen gas is O2 </span>
<span>Lithium oxide is Li2O </span>
<span>Unbalanced Equation is Li + O2 --> Li2O </span>
<span>There's one O on right side, 2 Os on left, so make coefficient 2 on right side to balance the oxygens. </span>
<span>Li + O2 --> 2 Li2O </span>
<span>Now balance the lithiums. There are 4 Lis on right side; 1 Li on left, so make Li coefficient 4 to balance the lithiums. </span>
<span>4 Li + O2 --> 2 Li2O </span>
<span>This equation is now fully balanced. </span>
<span>Therefore balanced equation is: </span>
<span>4 Li + O2 --> 2 Li2O</span>
Answer:
Answer in explanation
Explanation:
In the first case, we divide each of the masses by the respective atomic masses:
N =0.615/14 = 0.043928571428571
O = 0.703/16 = 0.0439375
It can be seen here that the values are similar, hence the formula is NO
now let us look at the second data set:
N = 1.27/14 = 0.090714285714286
O = 2.9/16 = 0.18125
We now divide by the smallest
N = 090714285714286/090714285714286 = 1
O = 0.18125/090714285714286 = 2
The formula here is thus NO2.
It can be seen that there are different oxides of nitrogen here which clearly indicates the law of multiple proportion.
Answer:
Explanation:
{H+}*[OH-] = 1 * 10^-14
[2*10^-5]* [OH^-] = 1*10^-14
[OH^-] = 1*10^-14/2*10^-5
[OH^-] = 5*10^-10