Chemistry
Products used to remove clogs in drains contain strong bases, such as sodium hydroxide (NaOH). If drain cleaner containing 10.0g NaOH's is added to a clogged drain pipe filled with 2.5L water how many moles of NaOH were added? It'd mean a lot if someone could explain t...
Economics
Yes, that's what banks are for, checking accounts, wallets, purses, etc. I do purchase things, I decide on my wants and needs and that determines as to what I buy. I do not sell things as far as I know, I do not have a job.
Economics
I need to write an essay titled " How are we all economists?" and I was wondering if you guys could give me some ideas on how to start it. Bulletpoints would be the most helpful.
Gas Law problems ( Chemistry)
the initial temperature of a 1l sample of gas is 20c. The pressure is decreased from 720mmhg to 36mmhg and the volume increases to 2.14l. What was the final temperature of the gas?
Logarithms
How do you expand ln15x? thanks :)
Molar heat of combustion question!
Calculate the molar heat of combustion of paraffin, expressed in units of kJ/mol. First calculate the thermal energy released when one mole of parafin burns) because one mole of parafin (c25h52) has a mass of 325g, the molar heat of combustion will be 352 times greater than th...
Chemistry (Combustion) formula question
Data; Volume of water, 100ml Room temp, 24C Initial water temp, 15C Final water temp, 30C Question: Calculate the mass of water heated. Hint: The density of the liquid water is 1.0g/ml. I have no idea how to do this. Can someone help? Thanks!
geometry
Draw a circle, form as many triangles as you can, and count.
7th Grade Math
2:5 In ratio form, anyway. Hopefully that helps.
Brown V Board of Education
Writeacher, I've tried searching everywhere and I can't find it.
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