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Chemistry

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Adolfo Adams

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Cards in this guide (19)
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.

What does the average atomic mass represent

The average atomic mass represents the weighted average of the masses of the isotopes of the element.

How is stoichiometry used

Stoichiometry is used to find the molar ratios between the reactants of a chemical reaction.

How are models affected by new evidence

Models are changed if they don't fit new data.

What can the shape of a molecule affect

The molecule's function and chemical and physical properties

How do atoms show both unity and diversity

There are relatively few atoms, but they make many molecules.

How do periodic trends illustrate stability and change in chemistry

Periodic trends illustrate how some elements are very reactive while others are stable.

How does the shape of a molecule affect the polarity of the molecule

C.A molecule that has a symmetrical shape will be a nonpolar molecule.

What types of anode

the two types of anode is stationary anode and rotating anode

What pieces of information is given in a half reaction

The number of electrons transferred in the reaction . . APEX c;

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 compounds is the most stable LiCl CuCl2 AlCl3 AgCl

licl

Which of the following statements describes electromagnetism

Magnetism can create electricity, and electricity can create magnetism.

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 is the most likely to be reduced

something about "native" should be ur answer..apex

which equation is balance in a basic solution

CIO H2O 2e- CI- 2OH

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