___3% H2O2 (mass/vol)
<span>a) mass bought = 3g/100ml * 250 ml = ?? g H2O2 </span>
<span>b) moles / 0.250 liter = (?? g H2O2 / MW H2O2 g/mole) / 0.250 liter = ??M </span>
<span>Plug and SOLVE </span>
<span>Basic mathematics is a prerequisite to chemistry – I just try to help you with the methodology of solving the problem.
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H2o is an example of covalent molecule. H2O has two hydrogen atoms bonded to one oxygen atom. The two hydrogen atoms and the oxygen atom are linked together by a covalent bond.Atoms of oxygen are electronegative and attract the sharing of electrons in a covalent bond.
Carbon capture and storage, or carbon capture and sequestration and carbon control and sequestration, is the process of capturing waste carbon dioxide, transporting it to a storage site, and depositing it where it will not enter the atmosphere.
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Answer: X is a Solid; Y is a Gas
Explanation:
There are three (3) states of matter. They are: Solid, Liquid and Gases.
Substance X and Y, belong to the states of matter.
A Solid is a substance that retains its SIZE and SHAPE without need of a container (as opposed to a liquid or gas).
Thus, it will most likely be concluded that: substance X is a Solid; while Y is a Gas