Cards in this guide (21)
What is a molecular formula
The molecular formula specifies the actual number of atoms of each element in a molecule.
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 a complete ionic equation look like
All ionic substances are written as separate ions in
solution
What pieces of information is given in a half reaction
The number of electrons transferred in the reaction . . APEX
c;
What are the spectator ions
Spectator ions are ions that do not part in a chemical
reaction.
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 %.
What does not benefit of using biofuel instead of fossil fuels
Fossil fuel may be used in the production of biofuels.
Which the following is a necessary product of a combustion reaction
For his truck Joel purchases gasoline to which oxygen has not been added. What might be the result
The engine will produce more exhaust.
Air and fuel intake compression and ignition combustion and expansion and exhaust are sequential steps in
The four-stroke engine cycle.
Generating energy through combustion of renewable biofuels that cause minimal harm to the environment is an example of
In which step of the four stroke engine cycle does the heat from the combustion reaction cause the pistons to move
The chemical reaction that occurs when gasoline and air are ignited is called an
Combustion reaction
(Apex)
Hydrogen-powered cars create less pollution than gasoline-powered cars when driven. What might be a challenge to using hydrogen as a fuel
Challenges to hydrogen as fuel include no distribution network,
ie gas stations, and fear that the car co u l d explode like the
Hindenburg.
In which step of the four-stroke engine cycle does the spark plug initiate the combustion reaction
After driving in stop-and-go traffic in his new hybrid Jesse notices that his car battery's power level has increased. What could be a possible explanation
each time jesse hits his breaks, the saved energy was stored in the battery -apex
What is the challenges poses the biggest problem to the long term use of alternative fuels
Electric engines may ultimately rely on fossil fuels for power.
Is not a concern regarding the use of corn as a biofuel
The color of corn is different than the color of gasoline or coal
APEX
How would 0.000000728 be written in scientific notation
It is 7.28*10^-7 in scientific notation
Which is the most likely to be reduced
something about "native" should be ur answer..apex