Question

pls do this for me...ill make u brainliest​
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Answer 1

1. under the branch you will explore carbon, hydrocarbon and its compounds
2. inorganic chemistry deals with the study of all the compounds not covered by organic chemistry
3. physical chemistry ,quite simple, is the application of physics to the study of chemistry

difference between mixture and compounds the mixture countains two or more substances mixed, but neither chemically as well as not in inexact quantity while compounds equal two or more elements combined chemically in a fixed ratio................pure pure substances are made up of elements and compounds

a chemical changeresults from a chemical reaction phycial change is e matter change forms but not chemical identity example of chemical change are burning cooking rusting and routing example of physical change or boiling melting freezing and shredding

Answer 2

Hey !

1)

Branches of Chemistry :

Organic Chemistry

- Deals with Carbon compounds

Inorganic Chemistry

- Deals with compounds that does not contain Carbon

Physical chemistry

- Deals with the behavior of the matter and Energy

Analytical chemistry

- Deals with the parts and composition of Matter.

Biochemistry

- Deals with the processes of living organisms.

Environmental chemistry

- Deals with Environment and pollution

Industrial chemistry

- Deals withe the chemical process in Industry

Thermochemistry

- Deals with the heat involved in chemical process

2)

Mixture vs Compounds

Mixture :

- Formed when elements or compounds are combinely mixed.

- Shows the properties of their constituents (compounds or elements). Thus, they don't show their own characteristics

- Can be physically separated [Distillation, Filtration etc]

- Can be Homogeneous or Heterogeneous by Nature

- Ratio of constituents (elements or compounds) can vary

- Have non constant melting point and boiling points

Compounds :

- Formed with combination of 2 or more elements.

- Properties vary from the constituents. Thus, they show their own characteristics

- Components cannot be physically separated

- Always Homogeneous mixture by Nature

- Ratio of constituents must be present in a fixed ratio.

- Have constant melting point and boiling points

3)

Periodic Table :

All the elements in the periodic table are arranged as per the increasing order of the Atomic No.

There are various trends that are shown by these elements that fall under a same row (periods )or column (group).

Modern periodic table has 18 groups of elements

All the elements have similar properties that are in same group (column , top to bottom)

Important Trends:

Considering Periods (Rows),

✓ Atomic Number increases from left to right

✓ Electron Affinity increases from left to right

✓ Atomic radius decreases from left to right

Considering Groups (Columns),

✓ Atomic radius increases from Top to Bottom

✓ Ionization Energy decreases from top to bottom

✓ Electron Affinity decreases from top to bottom

Diagram:

Please find in the textbook (or) Google

Note the names given to each of the period and groups and also what the elements combinely called in them.

4)

Chemical Change Vs Physical change :

Physical change:

- Substance at the beginning are the same before and after the change

- Composition of Matter does not changes.

- It is reversible (or) can be undone.

- Eg: Melting of Ice

Chemical Change :

- Substance present at the beginning are the not present after the change

- Composition of Matter always changes.

- It is non reversible (or) cannot be undone.

- Eg: Burning of Wood.

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