Answer:
I think it is chemical change
___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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The name "flint" is often the preferred name used for material with a very fine grain size and a slightly higher luster. These "fine-grained" materials break with greater predictability and produce a sharper edge. So the middle answer
Answer:
a) K2[Ni(CN)4]
b) Na3[Ru(NH3)2(CO3)2]
c) Pt(NH3)2Cl2
Explanation:
Coordination compounds are named in accordance with IUPAC nomenclature.
According to this nomenclature, negative ligands end with the suffix ''ato'' while neutral ligands have no special ending.
The ions written outside the coordination sphere are counter ions. Given the names of the coordination compounds as written in the question, their formulas are provided above.
Answer:
The basic working principle of a wind turbine is to convert the mechanical energy from the wind into rotational energy at the mill, then the rotation of the mill is used to rotate the generator, which will eventually generate electricity. This tool serves to change the low rotation of the wheel into high rotation.