The first one is Solid, or A.
The second: B or liquids.
Third: also B I think.
Hope this helps.
No he does not
Hopes it helped
A pure substance that cannot be separated into simpler substances by physical or chemical means. A pure substance composed of two or more elements that are chemically combined.
Answer:
278 mL x 0.038 M = 10,564 mmol.
Using the molair mass of Fe2(SO4)3 to convert mmol to grams:
10,564 mmol / 1000 x 399,88 g/mol = 4,22 g Fe2(SO4)3.
<span>The most efficient way to determine whether a reaction is an exothermic chemical reaction is to use a temperature probe.
Given that an exothermic chemical reaction is going to release heat, using an instrument such as a thermometer or a temperature probe to see the change in temperature would be the best way in order to determine the type of the chemical reaction.
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