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I have 4 assignments for unit 22 chemistry btec level. Are you able to do my assignments by friday?

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Number of electrons and neutrons of an element & mass no, The number of ele...

The number of electrons and neutrons of an element is 18 and 20 respectively. Its mass number is: (1) 17              (2) 37        (3)2              (4)38 Ans: 17

The valency of sulphur in sulphuric acid, The valency of sulphur in sulphur...

The valency of sulphur in sulphuric acid is: (1) 2   (2) 4    (3) 6                               (4) 8 Ans:  6

PH, Calculate the pH of 0.100 L of a buffer solution that is 0.22M in HF an...

Calculate the pH of 0.100 L of a buffer solution that is 0.22M in HF and 0.53M in NaF

Orsat analysis, Thirty pounds of coal (analysis 80% C and 20% H ignoring th...

Thirty pounds of coal (analysis 80% C and 20% H ignoring the ash) are burned with 600 lbs of air (with a variable humidity), yielding a gas have an Orsat analysis in which the rati

Reducing agent for the extraction of metals, Aluminium metal is frequently ...

Aluminium metal is frequently used as a reducing agent for the extraction of metals such as chromium, manganese etc. Explain why? Ans) Aluminium is an highly electropositive metal

Characteristics of tautomerism - isomerism, Characteristics of tautomerism ...

Characteristics of tautomerism (a) Tautomerism (cationotropy) is caused by the oscillation of hydrogen atom between two polyvalent atoms present in the molecule. The modificati

P block elements, i want all the information of all the periods from 13th t...

i want all the information of all the periods from 13th to 18th present in p block element

Calculate Wavelength, Ask question #Minimum 100 words acceWhen an electron ...

Ask question #Minimum 100 words acceWhen an electron beam strikes a block of copper, x-rays of frequency 1.07 x 10 19 Hz are emitted. What is the wavelength of these x-rays?pted#

What is isomerism? explain different types of isomers., The two or more che...

The two or more chemical compounds with identical chemical formula but different structures are called isomers, and the phenomenon is known as isomerism. This phenomenon is not res

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