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Andrei [34K]
3 years ago
10

Why are elements' atomic masses not in strict increasing order in the periodic table even though the properties of the elements

are similara?
Chemistry
1 answer:
Karolina [17]3 years ago
6 0
Because they're just meant to be arranged by atomic mass--it's just how the scientists of the late 1860s wanted it to be ordered 
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Of the molecules sicl4 and sii4, which has bonds that are more polar?
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How might you tell if a food contains an acid as one of its ingredients?
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7 0
3 years ago
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The entropy of an exothermic reaction decreases. This reaction will be spontaneous under which of the following temperatures?
kakasveta [241]

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3 years ago
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In the reaction fecl2 + 2naoh fe(oh)2(s) + 2nacl, if 6 moles of fecl2 are added to 6 moles of naoh, how many moles of fecl2 woul
pychu [463]
The balanced chemical reaction would be 

<span>fecl2 + 2naoh =  fe(oh)2(s) + 2nacl

Initial amounts of the reactants are given, so, we need to determine which of the reactants is the limiting reactant and use this amount to determine what is asked. However, what is being asked is how many of the FeCl2 is used in the reaction, showing that it is NaOH that is the limiting reactants. Thus, we just use the initial amount of NaOH and relate the substances by the chemical reaction as follows:

6 mol NaOH ( 1 mol FeCl2 / 2 mol NaOH ) = 3 mol FeCl2

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5 0
2 years ago
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