Use this information to answer the questions below. You discover a substance that is made of 10.6 g of Carbon and 4.4 g of Hydrogen.
(Use this to calculate empirical formula.)

The molar (molecular mass) of the compound is 68.204 g/mol.
(Use this when solving for molecular formula.)

What is the percent composition of this substance? (Make sure you percent has two (2) decimal places.)

%C =

%H =
Please show your work

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.

Given the following equation: 2a1 + 3mgcl2 --> 2alcl3 + 3mg how many moles of aluminum chloride are produced from 2.5 moles of magnesium chloride?

What is the wavelength of a 3*10^12 hz infrared wave a 3*10^20m b 1* 10^4m c 3*10^-3m d 1*10^-4 m