The designation "4" before Na2SO3 simply means that there are four molecules of sodium sulfite.
A molecule is formed when two or more atoms of the same or different elements come together. The formula of the molecule must reflect the number of atoms from which it is formed. The designation "4" before Na2SO3 simply means that there are four molecules of sodium sulfite.
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Answer:
47.99g
Explanation:
The first step st have a balanced chemical reaction equation.
This is given as;
2Fe + 3Cl2 --> 2FeCl3
From the equation,
2 moles of Fe would react with 3 moles of Cl2.
I mole of Fe = 55.8 (3 s.f) (Molar mass of Fe)
2 mole = 2 * 55.8 = 111.6 g
1 mole of gaas occupies 22.4dm3
3 moles = 3 * 22.4 = 67.2 dm3
1dm3 = 1L
This means 116g would consume 67.2L
Xg would consume 27.8L
x * 67.2 = 27.8 * 116
x = 3224.8/67.2
x = 47.99g (2 d.p)
Answer:
Definition of Inert. An inert chemical is one that is stable and unreactive under specified conditions. ... However, most of the noble gases have now been observed to form compounds, although generally under unusual conditions. Helium and neon are highly inert; they form no compounds.
Answer:
C. The samples contain the same substances in a fixed proportion.