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I have not taken Chemistry in a year but I remember that if you look at a periodic table there are certain sections for polar and non polar elements. I dont know if you have learned that yet
Answer:
4.15 M
Explanation:
In order to find the molarity of a stock solution of Z, we use the formula;
Co = 10pd/M
where;
p = percentage by mass of Z
d = density of Z
M= molar mass of Z
Substituting values;
Co= 10 * 35 * 1.4/118
C0= 4.15 M
Answer:
a) The molecule is always polar.
Explanation:
The molecule is always polar because of two reasons:
- all the bonds are polar due to the difference in electronegativity between carbon and hydrogen & carbon and chlorine.
AND IMPORTANTLY
- The molecule is asymmetrical meaning that the dipoles cannot cancel each other out (like they do in methane or carbon dioxide for example) so the net effect is a polar molecule.
Answer:
3Cu²⁺ + 2PO₄³⁻ → Cu₃(PO₄)₂ (s)
Explanation:
Double displacement reaction: A chemical reaction in which aqueous solution of two salts react to give two products by exchanging their counterions.
<u>The chemical equation for the chemical reaction between Na₃PO₄ (aq) and CuSO₄ (aq) is given as:</u>
2 Na₃PO₄ (aq) + 3 CuSO₄ (aq) → Cu₃(PO₄)₂ (s) + 3 Na₂SO₄ (aq)
<u>The full ionic equation for this chemical reaction is:</u>
6Na⁺(aq) + 2PO₄³⁻(aq) + 3Cu²⁺(aq) + 3SO₄²⁻(aq) → Cu₃(PO₄)₂ (s) + 6Na⁺(aq) + 3SO₄²⁻(aq)
<u>Therefore, the net ionic equation for this chemical reaction is:</u>
3Cu²⁺ + 2PO₄³⁻ → Cu₃(PO₄)₂ (s)
