Here's how you would solve it. The process should be the same for the others.
The answer to the question:
The names of all binary compounds, both ionic and molecular,
end in the letters ____
Is:
-
ide
The names of all the binary compounds, both the molecular
and ionic, end in the letters –ide.
Answer:
If the tilt of the Earth's axis is changed there would be a change in the season because the season is caused by the Earth's tilt (23.5 degrees) and the revolution or orbit.
Answer:
3.228x10⁻⁴ moles of Na2S2O3 are required
Explanation:
In iodometry, the reaction of KIO3 with Na2S2O3 is:
KIO3 + 6 Na2S2O3 + 6H⁺ → KI + 3Na2S4O6 + 3H2O + 6Na⁺
<em>Where 6 moles of Na2S2O3 reacts per moles of KIO3.</em>
<em />
The moles of Na2S2O3 required to reach endpoint when 0.0000538 moles of KIO3 are:
0.0000538 moles of KIO3 * (6 moles Na2S2O3 / 1 mol KIO3) =
<h3>3.228x10⁻⁴ moles of Na2S2O3 are required</h3>