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Cedrick Olson

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Cards in this guide (19)
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

How is stoichiometry used

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

What information does a solubility table give

it tells which compounds will dissolve in water

What is the mass percent composition of an element in a molecule

Percentage composition= (mass of the element/mass of the molecule)*100

The fraction of the molecule's mass that comes from the element's mass

What kind of information does the activity series of metals give us

It compares how reactive the metals are

It predicts if one metal will replace another metal in a compound

Which of the following sequences describes how a four stroke engine cycle powers the engine

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

What kind of reaction is 2C2H6 7O2 g 4CO2 6H2O

A combustion reaction

What characteristics indicates that an atom is unstable

by creating very strong bonds

What is the net ionic equation for the reaction 2kohaq h2so4aq 2h2ol k2so4aq

OH- 2H+ -> 2H2O(I)

ywwww

:)

Which the following is a necessary product of a combustion reaction

heat

Which of the following statements describes electromagnetism

Magnetism can create electricity, and electricity can create magnetism.

How many oxygen atoms does 1 mole of 02 gas have

1 mole of 02 gas has 12,044 281 714.1023 atoms.

Renewable fuels derived from biological matter are called

Biofules

What is the oxidation state of N in NH4 plus

-3

In which step of the four stroke engine cycle does the heat from the combustion reaction cause the pistons to move

combustion and expansion

Ask us anythingJoel has noticed that his engine is not compressing properly during the compression and ignition step. What problem will this pose

The engine will run inefficiently.

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

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