<span>6s²4f¹⁴5d¹⁰6p²
6 shows that the element is in the 6 period,
6p² shows that the element is in the 14th group. (1 and 2 groups have s -electrons as last ones, 13 group has s²p¹, and 14 group has s²p²)
The element is Pb.
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Answer: False, I believe.
Explanation: If a Hypothesis is proven correct, then another experiment to strengthen that Hypothesis is should be done.
Answer:
two examples are blood and soapy water.
Explanation:
Answer: A balanced equation for the given reaction is
.
Explanation:
The reaction equation will be as follows.
![NiO(s) + CO \rightarrow Ni(s) + CO_{2}(g)](https://tex.z-dn.net/?f=NiO%28s%29%20%2B%20CO%20%5Crightarrow%20Ni%28s%29%20%2B%20CO_%7B2%7D%28g%29)
Number of atoms on the reactant side is as follows.
Number of atoms on the product side is as follows.
Since number of atoms on both the reactant and product sides are equal. Hence, the reaction equation is balanced.
Thus, we can conclude that a balanced equation for the given reaction is
.
Answer:
Hi, this is a super vague question, so its pretty confusing to answer. Could you please be a bit more specific?
If you are referring to chemistry, then how you tell "what is what" is by the molecular makeup of an element (Periodic table), and "how that..affects what", chemical reactions can occur between elements