Q: What two elements do sheep yell out when happy?
A: BaH
Search found 10 matches
- Sun Mar 19, 2017 6:19 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3673425
- Sat Mar 11, 2017 3:55 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3673425
Re: Post All Chemistry Jokes Here
Q: What did one ion say to the other?
A: I've got my ion you.
A: I've got my ion you.
- Sat Mar 04, 2017 5:30 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3673425
Re: Post All Chemistry Jokes Here
Q: Anyone know any jokes about sodium hydride?
A: NaH
A: NaH
- Sun Feb 26, 2017 4:31 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3673425
Re: Post All Chemistry Jokes Here
Q: Why did the acid go to the gym?
A: To become a buffer solution!
A: To become a buffer solution!
- Sun Feb 19, 2017 7:30 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3673425
Re: Post All Chemistry Jokes Here
What do you call Iron blowing in the wind?
Fe-breeze
Fe-breeze
- Sun Feb 12, 2017 10:12 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Cell Diagram Symbols
- Replies: 4
- Views: 1282
Re: Cell Diagram Symbols
I think you're supposed to use the vertical lines when creating cell diagrams.
- Sat Feb 04, 2017 10:39 pm
- Forum: Phase Changes & Related Calculations
- Topic: Why does it take more energy for a phase change to occur from a liquid to gas than a solid to liquid?
- Replies: 2
- Views: 9914
Re: Why does it take more energy for a phase change to occur from a liquid to gas than a solid to liquid?
Within the phase change from solid to liquid, the bonds between atoms are merely loosened. In the phase change from liquid to gas, the bonds between atoms are completely broken. The phase change from liquid to gas requires more energy because the bonds must be completely broken for it to take place,...
- Sun Jan 29, 2017 1:26 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Spontaneous Reactions
- Replies: 1
- Views: 554
Re: Spontaneous Reactions
The equation of change in Gibbs free energy is delta G=delta H-T*delta S. A negative delta G value may result from a large negative delta H, which corresponds to a large increase in the entropy of the surroundings. A negative delta G value may occur even if delta H is positive, as long as the T*delt...
- Sun Jan 22, 2017 7:38 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Measuring Heat Transfer
- Replies: 3
- Views: 705
Re: Measuring Heat Transfer
The equation with the m in it will give you the energy supplied as heat to the substance, and the equation with the n in it will give you the molar heat capacity of a substance. The m refers to mass while the n refers to moles. You'll know which equation to use based on which one (grams or moles) th...
- Sun Jan 15, 2017 6:53 pm
- Forum: Phase Changes & Related Calculations
- Topic: Enthalpy of Phase Changes
- Replies: 2
- Views: 519
Enthalpy of Phase Changes
Would the value of enthalpy of condensation of a substance be the same value of the enthalpy of vaporization except with the opposite sign?