Chemistry - June 2006

I am a high school Chemistry Teacher.

2006-06-20 09:02:31 · 5 answers · asked by tinkergnome7 1

What is the total amount of heat energy, in joules, absorbed by 25 grams of water when the temperature of the water increases from 24 degrees celsius to 36 degrees celsius?

2006-06-20 08:38:13 · 5 answers · asked by E.F. 2

2006-06-20 08:15:18 · 7 answers · asked by Anonymous

I have a hot tub and everytime I test the water the Ph if very low. The chemical to bring the Ph up is very expensive. Does anyone know of a product I can use to raise the Ph- perhaps something commonly found in the home that would be safe to put in a hot tub. Please - serious answers only.

2006-06-20 07:25:59 · 10 answers · asked by PDY 5

2006-06-20 07:03:06 · 10 answers · asked by Anonymous

It needs to be in an aqueous environment. I know how to synthesize La2O3, but I need to exchange one of the oxygens with a sulfur to get La2O2S.

2006-06-20 06:37:29 · 2 answers · asked by q2003 4

I know oxygen is needed to have fire, and fire is red, hot, but what is fire exactly?

2006-06-20 06:04:47 · 18 answers · asked by plasmaisnoturs 3

Maybe we will never know.

2006-06-20 06:02:43 · 35 answers · asked by Sal 1

2006-06-20 05:57:31 · 3 answers · asked by Anonymous

2006-06-20 05:23:09 · 16 answers · asked by Jason B 3

2006-06-20 05:06:28 · 7 answers · asked by unclewiggly 1

A 16.0 g sample of ice at -12.0°C is mixed with 120.0 g of water at 87.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings. The heat capacities of H2O(s) and H2O(l) are 2.08 and 4.18 J/g°C, respectively, and the enthalpy of fusion for ice is 6.02 kJ/mol.

2006-06-20 04:26:25 · 4 answers · asked by Anonymous

2006-06-20 04:15:49 · 26 answers · asked by lacto_bacillus2002 1

2006-06-20 03:47:23 · 4 answers · asked by drummermdl 1

2006-06-20 03:41:41 · 7 answers · asked by crickwiz 2

2006-06-20 03:38:09 · 12 answers · asked by crickwiz 2

2006-06-20 03:36:28 · 2 answers · asked by ^chillingfire^ 1

See,I got this ques this morning.
You know H2O (water) and Other substances like H2S & others.
All these substances are gases at room temp,but there is an exeption for H2O (which is liquid) Why?????????????????????

2006-06-20 03:09:29 · 15 answers · asked by webmas2004 1

2006-06-20 02:35:12 · 1 answers · asked by chem 1

2006-06-20 02:30:34 · 22 answers · asked by zadjaja 1

2006-06-20 01:27:28 · 4 answers · asked by tin 1

2006-06-20 01:08:26 · 10 answers · asked by tin 1

chemistry ,solid states

2006-06-20 00:34:56 · 1 answers · asked by dr_lejoissacjohn 1

2006-06-20 00:29:57 · 4 answers · asked by jaq 2

the name of the toy chemist, the company he belong to, his position in the company and the url or resource where you git the info.

2006-06-20 00:23:10 · 1 answers · asked by rosa 1

Please provide detailed answer with suitable reason/s.Which ion has the smallest size and which ion has the largest?

2006-06-19 22:59:53 · 12 answers · asked by mamakhan1 1

Medicine Dropper

2006-06-19 22:50:37 · 3 answers · asked by el 1

i am stuck on my homework and i need to know what the answer to my question is, and fast, because u can help me with a potential a+! thanks again, if you tried to answer my question!

2006-06-19 22:31:22 · 23 answers · asked by Anonymous

2006-06-19 21:03:23 · 8 answers · asked by ankush_wah 1

organic chemistry

2006-06-19 21:00:09 · 6 answers · asked by messiah 1