Category: Chemistry

“Well-organized summary of analytical chemistry techniques including spectroscopy (UV, IR), chromatography (GC, HPLC), mass spectrometry and NMR. Ideal for students.”

Our teacher asked us to construct a periodic table for elements he’s come up with using Mendeleevs logic, and I have completed the descriptions of the elements– I just have no clue how I actually organise them into groups. To be more specific, there are eight groups that are used in Mendeleev’s periodic table, each group representing a different charge of valency (1+, 2+, 3+, 4 +/-, 3-, 2-, 1-, 0). The aim is to order these elements and then predict elements that have not been ‘discovered yet’ in this given set of new elements; and provide justification as to why this is so.*

I attached the resources we’ve been given, as well as the rubric and explanation to the assignment.

*for the justification segment, I don’t need fully written answers, just short explanations as to what should be written.

.what is combination reaction give one example.?

What is decomposition reaction give one example?

What is thermal, photo decomposition reaction give one equation?

Chapter 1 class 9 CBSC matter in our surrounding notes

What is decomposition reaction give one example

What is corrosion and rancidity give a few points

Ciri terjadi reaksi kimia

Contoh reaksi kimia

Persamaan reaksi

Zat yang mempermempercepat reaksi kimia

Faktor yang mempengaruhi cepat lambatnya reaksi

Enzim dalam tubuh

Hukum kekekalan masa

Persilangan monohibrid

Percepatan gravitasi

Pembuahan

Rangkaian paralel

Kuat arus dan energi

Lab6.2

Acetonitrile + C2H5MgI = A + HoH = B

Here B is1) Acetone, 2) Acetaldehyde, 3) But-2But-2-one, 4) Butanal

Evaporation – The phenomenon of change of liquid vapours at any vapours at any temperature below it’s boiling point is called evaluation.

Factors affecting evaporation –

1) Wind energy – When the wind energy is increase then the rate of evaporation is also increase.

(Wind energy rate of evaporation )

2) Temperature – When the temperature is increase then the rate of evaporation is also increase.

(Temperature rate of evaporation )

3) Surface area- when the surface is increase then the rate of evaporation is also increase.

(Surface rate of evaporation )

4) Humidity – when the humidity is increase then the rate of evaporation is decrease.

(Humidity rate of evaporation )

Evaporation – The phenomenon of change of liquid vapours at any vapours at any temperature below it’s boiling points it is called evaluation.

Factors affecting evaporation:

1) Wind energy – when the Wind energy is increase the rate of evaluation is also increase.

2) Surface area- when the surface area is increase then the rate of evaporation is also increase.

3) Temperature- When the temperature is increase then the rate of evaporation is also increase.

4) Humidity – when the humidity is increase the rate of evaporation is decrease.

Inshort

Wind energy rate of evaporation

Surface area rate of evaporation

Temperature rate of evaporation

Humidity rate of evaporation