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Chemistry

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Kieran Crist

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Cards in this guide (15)
How is electroplating done

the metal on which electroplating is to be done is taken as cathode ( negative electrode) . the metal of which electroplating is to be done is taken as anode ( positive electrode) and the salt solution of the metal of which electroplating is to be done is taken as electrolyte .

example-

if we want to electroplate iron with copper then iron is taken as cathode and copper is taken as anode and electrolyte is copper sulphate.Electroplating is the process of plating one metal onto another by hydrolysis, most commonly for decorative purposes. This is done through the use of copper in a copper sulfate bath.

Which term describes the describes the disorder of random molecular motion

Entropy

Does H2 have a molecular dipole moments

No. H2 does not have a permanent dipole moment.

Why are prefixes not needed in naming ionic compounds

Ions combine in only one ratio, so prefixes are not needed.

What best describes a bond formed between two unlike atoms

The type of bond is determined by the difference in electrongativity of atoms

How many total electrons can the d orbitals hold

10

What types of anode

the two types of anode is stationary anode and rotating anode

Why does the s orbital fill before the p orbitals

The s orbital is lower in energy than the porbital.

What is a trend seen in the periodic table

electronegativity

What would be the percent yield of the reaction be if the theoretical yield is 11.22 g but the actual yield was 8.67 g

In this case the yield is 77,27 %.

Which of the following has the smallest radius is K plus Rb Rb plus K

K+

In the reaction mgcl2 plus 2koh mgoh2 mgoh2 plus 2kcl if 3 moles mgcl2 are added to 4 moles koh what determined how much mgoh2 is made

The amount of Koh

How would 0.000000728 be written in scientific notation

It is 7.28*10^-7 in scientific notation

What of the following best describes electroplating

Depositing one metal on another

Which molecule or ion has a trigonal planar shape

So3

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