Chemistry (including Biochemistry)/Expert Profile

Average Ratings

• Knowledgeability 9.82
• Clarity of Response 9.85
• Timeliness 9.82
• Politeness 9.85

• Number of Questions (in Past 24 Hours) 0
• Max Questions to be Asked (in 24 Hour Period) 5
• Total Questions (since joining AllExperts) 116
• Volunteer Since 2008-11-12
• Prestige Points 1160

Recent Reviews from Users

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    K = Knowledgeability    C = Clarity of Response    T = Timeliness    P = Politeness

User	Date	K	C	T	P	Comments
Sara	09/10/09	10	10	10	10	Thank you so much. I figured it .....
Candice	09/08/09	10	10	9	10	Very clear thank you very much!!!
Sara	09/04/09	10	10	10	10	Thanks so much!
Clara	02/28/09	10	10	9	10	Thank you soo much! That helped alot .....
Karen	02/21/09	10	10	10	10	Kimberly: Thanks so much. I knew it .....

Recent Answers from Kimberly Noble

2009-09-12 Chemistry:

Density is mass/volume, so to calculate it you need to know those two things, mass and volume. You're given the mass of the lead straight out. The information to calculate the volume is also given.

2009-09-12 Significant Figures:

You just need to know the number of significant digits in X (3) and Y (4), then follow the rules governing significant figures (SF's) in arithmetic. i) The rule for addition is, the answer is given

2009-09-10 chemistry:

The equation you're looking for is: q = mc(Tf - Ti) Where q is the energy lost/gained, m is the mass of the substance, and (Tf - Ti) is the change in temperature. So first you need to look up the

2009-09-08 chemistry:

MASS NUMBER/ISOTOPES: The number of protons (the "atomic number") in the nucleus is what defines an element as such. Carbon is carbon because it has 6 protons; all isotopes (variations) of carbon have

2009-09-03 cigarette smoke.:

This sounds like an essay question to me, so I will try to point you in the right direction. You can use Google for further exploration of the topic. I have limited knowledge of botany, but I do know