Search found 8 matches

by JessenyaReyes_1B
Sun Mar 12, 2017 11:43 pm
Forum: *Alkenes
Topic: Naming Alkenes and Alkynes
Replies: 2
Views: 326

Re: Naming Alkenes and Alkynes

When naming alkenes and alkynes, you start numbering at the double (or triple bond) and continue numbering through it. However, if there is a functional group, you start numbering at the C it is attached to, and then move in the direction that would give the double or triple bond the lowest number.
by JessenyaReyes_1B
Sun Mar 05, 2017 7:08 pm
Forum: *Alkanes
Topic: Alkane vs Alkyl
Replies: 1
Views: 1804

Re: Alkane vs Alkyl

An alkane is a saturated hydrocarbon, which means there are only carbon-carbon single bonds. The -ane part of the naming is what indicates that the hydrocarbon has only single bonds. Alkyls are the substituents in alkanes. When naming the substituent, the ending -ane is changed to -yl. An alkene is ...
by JessenyaReyes_1B
Sun Feb 26, 2017 10:55 pm
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Textbook question 15.71
Replies: 2
Views: 335

Re: Textbook question 15.71

The hydroxide ion appears as a reactant in the first step and as a product in the second step, so it was not consumed in the reaction, which makes it the catalyst. This property allows for catalysts to act repeatedly.
by JessenyaReyes_1B
Sun Feb 12, 2017 7:27 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 900465

Re: Post All Chemistry Jokes Here

here is a joke
by JessenyaReyes_1B
Sun Feb 05, 2017 10:40 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 900465

Re: Post All Chemistry Jokes Here

joke below :)
by JessenyaReyes_1B
Sun Jan 29, 2017 10:38 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 900465

Re: Post All Chemistry Jokes Here

Does anyone know any jokes about sodium? Na. Yeah, I know that was sodium funny!
by JessenyaReyes_1B
Sun Jan 22, 2017 9:40 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: Calculating the work done when a gas expands
Replies: 1
Views: 191

Re: Calculating the work done when a gas expands

There's an older post about this. But basically you use the 100 g to cancel out with the grams in the density to give you the volume (convert from cm^3 to L), you do it for both water and ice. Then you find the change in volume and plug into the equation for work. In the end you have to convert to j...
by JessenyaReyes_1B
Sun Jan 15, 2017 10:16 pm
Forum: Phase Changes & Related Calculations
Topic: Enthalpy of Sublimation
Replies: 3
Views: 305

Re: Enthalpy of Sublimation

Enthalpy is a state function so only the initial and final states matter. So you can do final-initial, which in this case is the enthalpy of the vapor (the final state) minus the enthalpy of the solid (the initial state).

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