Answer:
2.91
Explanation:
pH=-log(H3O+)
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Answer:
Iodine
Explanation:
It's in the same group as chlorine.
It is a graph. It shows observations and then you record your results with any of the graph types.
A isotope is atoms of the same element with different amount of neutrons to change the mass. They can become more stable by sharing or giving away electrons to have a stable electron shell
Answer:
In both cases, the gas evolved is H2. When calcium reacts with water the heat evolved is not suffcient for hydrogen to catch fire. On the other hand, sodium metal reacts with water violently and in this case a lot of heat is evolved which is sufficient for hydrogen to catch fire.
Explanation:
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