3 years ago

What moon phase occurs 3-4 days after a waning gibbous

Chemistry

1 answer:

Artyom0805 [142]3 years ago

4 0

Third quarter (or last quarter)

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3 years ago

List results of Chemical Reactions.

sweet [91]

Answer:

eating

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because when any food or anything that touches your saliva (spit) automatically a chemical reaction!

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Thermoplastics can be made to act more like thermosets by a process called cross-linking

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46.6 grams of mercury II sulfate (HgSO4) reacts with an excess of sodium Chloride (NaCl). How many grams of mercury II chloride

slega [8]

Answer:

$m_{HgCl_2}=42.7gHgCl_2$

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

$HgSO_4+2NaCl\rightarrow HgCl_2+Na_2SO_4$

In such a way, the mercury II sulfate (molar mass 296.65g/mol) is in a 1:1 molar ratio with the mercury II chloride (molar mass 271.52g/mol), for that reason the stoichiometry to find mass in grams of mercury II chloride turns out:

$m_{HgCl_2}=46.6gHgSO_4*\frac{1molHgSO_4}{296.65 gHgSO_4}*\frac{1molHgCl_2}{1molHgSO_4} *\frac{271.52gHgCl_2}{1molHgCl_2} \\\\m_{HgCl_2}=42.7gHgCl_2$

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pesticides and fertilizers can help farmers to produce more crops. However, overuse of these chemicals can result in?

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Overuse of the same chemicals can result in the pest becoming immune to the pesticides.

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