An unbalanced chemical equation is shown: 2NaN3 → 2Na + N2 Which of the following statements explains why the equation is not ba
2 answers:
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Answer : The correct option is, x = 10
Explanation : Given,
Concentration of ion = 0.001 M
pH : It is defined as the negative logarithm of hydrogen ion or hydronium ion concentration.
First we have to calculate the pH.
Now we have to calculate we the value of 'x'.
The given expression is:
Now put the value of pH in this expression, we get:
Therefore, the value of 'x' is 10.
Answer:
Here's what I get
Explanation:
Does an ice cube feel cold to the hand?
The melting of ice is an endothermic process.
If you hold an ice cube, heat flows from your hand to the ice. When your hand loses heat, it feels cold.
In the same way, the endothermic dissolving of ammonium nitrate removes the heat from your hand, so the pack feels cold.
