Answer:

Explanation:
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in this case, according to the given information, it turns out firstly necessary for us to write up the chemical equation as shown below:

Thus, we calculate the mass of BaCl2 stoichiometrically related to the produced 1.658 g of precipitate in order to discard it from the sample:

Thus, the mass percentage is calculated as shown below:

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Answer:
The generic equation for a combustion reaction is AB + O2 à AO + BO
Explanation:
Answer:
to collect measurable, empirical evidence in an experiment related to a hypothesis the results aiming to support or contradict a theory.
Explanation: