Answer:
Half-life time is 6s
Explanation:
A first order reaction follows the formula:
ln[A] = ln[A]₀ - kt
Thus, the graph of ln[A] vs t will have as slope -k.
Graphing the given values you will obtain the linear formula:
y = -0.1154x + 0.1994
R² = 0.9997
Thus, slope is -0.1154s⁻¹ and k is:
-k = -0.1154s⁻¹; <em>k = 0.1154</em>s⁻¹
Now, as half-life in a first order reaction is:
<em>Half-life time is 6s</em>
3. H2 (g) has a standard gibbs free energy of 0
Answer:
smallest particle of an element which can take part in a chemical reaction
Explanation:
there are atoms of different elements is sodium atom
Answer:D
Explanation:
The high boiling point of HF is not attributable to the dispersion forces mentioned in the question. In HF, a stronger attraction is in operation, that is hydrogen bonding. This ultimately accounts for the high boiling point and not solely the dispersion model as in F2.
Answer:
+3
Explanation:
Chlorine is anion with a -1 charge. But they are three chlorine atoms.
-1 * 3 = -3
So they have a -3 charge.
So to balance the compound, the nickel has to be a cation with a +3 charge.
-3 + 3 = 0
Furthermore, a chemical bond always has a 0 charge. Remember that.
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