Cards in this guide (18)
A cat with two kittens are sleeping or A cat with two kittens is sleeping.
'with two kittens' describe the cat. So, you should write 'is
sleeping'. But if you mean that all three of them are sleeping,
write 'A cat and his two kittens are sleeping'.
What does the latent heat of fusion represent
The amount of heat energy required to solid substance solid into
a liquid state without any changes in temperature
______________________
Apex: The amount of energy required to turn a mole of a solid
into a liquid
Which of the following would be a good situation in which to apply Hess's law
Scale step reactions so products/reactants that don't appear in
the target reaction will cancel out.
What does the entropy of a reaction describe
The amount of randomness in the system
Which equation shows how frequency is related to velocity and wavelength
What is true of an Arrhenius acid
An Arrhenius acid donates H+ ions. (apex).
What could the fourth quantum number of a 2s2 electron be
How is stoichiometry used to calculate energy released when a mass of liquid freezes
Grams liquid × mol/g × Hfusion
What does binding energy measure
The energy used to hold the nucleus together
What frequency corresponds to an absorption line at 502 nm
Which reaction would cause a increase in entropy
SO2Cl2(g) --> SO2(g) + Cl2(g)
ap3x answer
What is the second quantum number of a 2s2 electron in phosphorus 1s22s22p63s23p3
Which of the following describes a spectrum apex
A range of wavelenghs of frequencies of electromagnetic
raditation
What is the wavelength of a light of frequency 4.47 X 1014 Hz
The wavelength is 671 nm.
What statement describes the potential energy diagram of an exothermic reaction
The potential energy of the reactants is greater than the
potential energy of the products.
How is the H fusion used to calculate the mass of solid that 1kJ of energy will melt
1kj x 1/H fusion x g/mol solid
How much energy is released is a sample loses 0.05 kg mass through radioactive decay
What makes a passage an example of expository prose
It expresses a complete idea.
