A coffee cup calorimeter will not be used to directly measure the enthalpy of magnesium
combustion because

✓ the coffee cups could melt.

The calorimeter is made of coffee cups instead of
a beaker because coffee cups are

✓ better insulators

than beakers.

You will not measure the enthalpy of the reaction
of

✓ H2 and 02

in the coffee cup calorimeter because this reaction involves gases
Instead, you will use a well-known published
value.

These are the correct answers on edge 2021

Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.

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.

Consider this initial-rate data at a certain temperature for the reaction described by