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Cerrena [4.2K]
3 years ago
9

Describe the position of metal ,non metals and metollieds in perodic tables​

Chemistry
1 answer:
siniylev [52]3 years ago
4 0
Non metals and metollids in periodic tables are the same how this helps ;)
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Build a prototype or test model of the invention​
KIM [24]
What invention I want to help you but I am confused
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You have two compounds that you have spotted on the TLC plate. One compound is more polar than the other. You ran the TLC plate
goldenfox [79]

Answer:

we will except an increase in the polarity of the system and this will cause the Non-polar spot to be near the solvent front, while the polar spot will run at an approximate speed of 0.5 Rf

Explanation:

when we run a TLC plate in a 50/50 mixture of hexanes and ethyl acetate we will except an increase in the polarity of the system and this will cause the Non-polar spot to be near the solvent front, while the polar spot will run at an approximate speed of 0.5 Rf

The speed of the polar spot depends largely on the level of polarity, an increase in the polarity will see both spots of Neat hexane run when we run a TLC  plate in a 50/50 mixture of hexanes and ethyl acetate

3 0
3 years ago
A reaction involves the parts of two compounds switching places to form two new compounds. What type of reaction is this?
In-s [12.5K]

Double Displacement would be correct

5 0
3 years ago
For the reaction 2A + 4B ----> 2C + 2D, at a particular instant in time, the rate of the reaction is 0.0352 M/s. What is the
viva [34]

Explanation:

The given chemical equation is:

2A + 4B -> 2C + 2D

The rate of the reaction is 0.0352 M/s.

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The rate of disappearance of B is shown below:

rate=-\frac{1}{4} \frac{d[B]}{dt}

So, rate of change of B is :

rate of change of B =- rate * 4\\=-0.0352 M/s * 4\\=-0.1408M/s\\\\=-0.141M/s

Option C.

6 0
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What element forms an ion with an electronic configuration of [Ne] and a –2 charge?
masha68 [24]
Oxygen has 8 electrons it takes 2 electrons to get config of neon and 2 electros mean -2 charge
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