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Chemistry

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Jeffry Ortiz

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Cards in this guide (15)
How many college credit as an undergraduate to obtain a bacherlor

Typically, you need to earn about 40 credit hours over four years--but it totally depends on the individual school what the requirements are.

What gives hybrid car its power to make it up big hills

it's big battery's.

Calculate the number of atoms of O contained in 16.0 pounds of O

16.0 lbs = 7,257 g of O2

Oxygen exists in the gas form as 02

7,257g O2 * 1 mol O2/ 32 g * 2 mol O / 1 mol O2 * 6.022x10^23 atoms/mol

= 2.73E26 atoms of O

When is GPA more important in junior year or senior year

Colleges take grades from all four years of high school into account, so a high school student's grade point average (GPA) is equally important in each year of high school.

The volume of a gas is directly proportional to the number of moles of that gas if

the pressure and temperature are held constant.

ideal gas law:

Pressure * Volume = moles of gas * temperature * gas constant

What is the pH of a 10-4 M naoh solution

-log(10^-4 M NaOH)

= 4

14 - 4

= 10 pH NaOH

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What is the correct sequence of steps in the four stroke engine cycle

air and fuel intake, compression and ignition, combustion and expansion, exhaust

What is the oxidizing agent in the reaction Fe AgNO3 FeNO33 Ag

AgNO3 #APEX

What is the pH of soultion

PH means negative logarithom of hydrogen ion concentration…so value of hydrogen ion concentration in solution is called the PH of solution.

is slippery a property of bases

Yes. It is a property of base.

Which of the following is an example of a heterogeneous mixture water saltwater dirt or brass

Dirt is a heterogeneous mixture.

In which step of the four-stroke engine cycle does the car release CO2 H2O and CO

Exhaust

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

Is required courses taken outside of a major and beyond the general education requirements are called

elective requirements

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