A) Using paper chromatography to separate pigments by density
<u>Answer:</u> It repels positive ion and attracts negative ion.
<u>Explanation:</u>
There are 2 types of ions:
1. Cations: These ions are positively charged ions which are formed when a substance looses electrons.
2. Anions: These ions are negatively charged ions which are formed when a substance gains electrons.
It is known that, like charges repel each other and unlike charges attract each other.
As, it is given that the substance is positively charged, so it will attract anion and repel cation.
The name of the molecule above is <u>Ethene</u>
<h3>What are organic compounds?</h3>
Organic compounds can be defined as compounds containing carbon and hydrogen.
Some classes of organic compounds are:
- Alkanes
- Alkenes
- Alkanols
- Alkanals
- Alkynes
So therefore, he name of the molecule above is Ethene
Learn more about organic compounds:
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<span>PV=nRT= a universal constant
For any condition
P1V1/n1T1=R
and
P2V2/n2T2=R
i.e
P1V1/n1T1=P2V2/n2T2
Becomes
V1/n1=V2/n2
rearranging and solving
V2=V1X(n2/n1)= 750 mLx((0.65+0.35)/(0.65))=1200ml=1.2L...2 sig figs</span>