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Chemistry

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Al Leuschke

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Cards in this guide (19)
What is a combustion reaction

A combustion reaction is a reaction in which a substance reacts with oxygen and heat is released.
C3H8 (g) + 5O2 (g) → 3CO2 (g) + 4H2O (g)

another answer:

C(s)+O2(g) CO2(g)

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 kind of information do unit conversions give

unit conversions give an equal amount but with other units

What does percent composition tell you about a molecule

It tells you how much of a molecule is made up of each element. - APEX

Which of the following would be useful for converting gmol to gL

molarity

What is the molecular formula of the compound ch2 with molar mass equals 168 gmol

c12h24

How many total electrons can the d orbitals hold

10

Which method of drawing hydrocarbons is the fastest to draw

the stick model method

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

Why are state symbols used in chemical equations

They identify what phase the substances are in

-Apex

What reaction shows a compound breaking apart into separate substances

Decomposition reaction

What is another way of writing 3.78 x 105

Another way of writing 3.78x105 is 396.9.

What pieces of information is given in a half reaction

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

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 %.

Identify the reactants in the reaction HCl plus NaOH NaCl plus H2O

The reactants are HCl and NaOH.

If the products of a reaction are CO2 and 2H2o what is known about the reactants

They do not include any C, O, or H atoms.

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

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