2) is the answer. graphite and diamonds possess the same molecular structes however the bonds and structures of diamonds are considerably stronger and more tightly packed respectively
1 bulb b and c wouldn't shine if ac. if DC then yes. 2 a would shine and c wouldn't if DC if ac then yes
Answer:
True
Explanation:
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The third reason helped Rutherford to discover the nucleus.
Answer: 2 V + 5 F2 > 2 V+5 + 10 F-
Explanation: First balance the chemical eq.
V + F2 > V+5 + 2F-
Second: Identify which is oxidised and reduced.
Oxidation: increase in oxidation #
Reduction : decrease in oxidation #
Third do half-reaction
Ox. V > V5+
Red. F2. > 2F-
Next add electrons to each positive sides of the reaction
Ox. V > V5+ + 5e-
Red. F2 + 2e- > 2F-
To make the number of electrons equal we will multiply the ox. side by 2 and reduction side by 5
2 ( V > V5+ + 5e-)
5 ( F2 + 2e- > 2F-)
The result will be:
2V + 5F2 + 10e > 2V5+ + 10e + 10 F-
Cancel the 10e in both sides.
Then the result will have equal charges in the reactant and product side
