Answer:
in acetic acid ,there are 4 hydrogen atoms
Explanation:
C H 3 C O O H
I think its the mirror because condenser helps in allowing the amount of light to pass.
Answer:
Choose the least electronegative atom other than H.
Explanation:
A Lewis structure consists of <em>terminal atoms</em> and one or more <em>central atoms</em>.
H can be <em>only a terminal atom</em> because it can form only one bond.
So the central atom must be either C or O.
The central atom is the less electronegative atom: C.
So, start the Lewis structure with a central C atom.
Then attach an O atom to get C-O.
Finally, attach the H atoms.
The condensed formula often gives you a clue where they go.
The formula CH₃OH implies that there are 3 H atoms on C and one on O.
The connectivity of the atoms is then as in the diagram below.
Mixture is composed of molecules of different types. A compound can only be separated through chemical means. While a compound is a pure substance that contains 2 or more elements chemically combined together while a mixture are formed when two substances are added together without chemical bonds being formed.
Answer:
a. Na₂S and (NH₄)₃PO₄
.
Explanation:
To know which salts are soluble we need to remember some <em>solubility rules</em>. And apply these as follows:
* All compounds of group 1 (Li⁺, Na⁺, K⁺, etc.) are soluble, Na₂S is soluble.
* All ammonium salts are soluble,
<h3>
(NH₄)₃PO₄ is soluble.</h3>
* All Cl⁻, I⁻, Br⁻ are soluble except when are with Ag⁺, Hg₂²⁺, Pb²⁺, Hg₂Cl₂ is <em>insoluble</em>
* Carbonates are insoluble except those with group 1 or ammonium, CdCO₃ is <em>insoluble</em>
* All sulfates are soluble except those with Ca²⁺, Sr²⁺, Ba²⁺, Pb²⁺, Ag⁺. PbSO₄ is <em>insoluble. </em>
Right solution is:
<h3>a. Na₂S and (NH₄)₃PO₄
</h3>
