Chemistry - September 2007

A teacher gives 2 mice viatimin c everyday for one month and a sugar pill to another twenty mice every day for a month. ALl the mice are fed once a day. what is not a constant experiment

A. the vitamin c
B. the frequency of feeding
C. the number of mice
D. the number of days the mice will recieve vitamin c

2007-09-04 11:53:06 · 1 answers · asked by me 2

2007-09-04 11:50:28 · 5 answers · asked by . 2

the high energy needed to initiate the reaction.

the high energy needed to sustain the reaction.

the high cost factor involved.

All of the above.

None of the above.

2007-09-04 10:37:41 · 4 answers · asked by Pratikshya M 1

2007-09-04 10:31:11 · 7 answers · asked by dynamochick22 1

* Please dont be discouraged to try and answer this question because of its length, any help will great

For the formation of compound Li ^+2O ^-- by using ionic bonding: (the + and - signs are suppose to be superscripts and the 2 is suppose to be a subscript)

1. Draw the elcetron-transfer diagram using orbital notation
2. write the elcetron -dot formula for the compound.
3. write an equation showing the oxidation
4. write an equation showinf the reduction
5. identify the oxidizing agent and reducing agent

2007-09-04 10:24:40 · 1 answers · asked by Whats the Scoop? 2

what do i write in the evaluation part?

thank you

2007-09-04 09:58:22 · 5 answers · asked by Anonymous

Chemistry the branch of science?

2007-09-04 09:56:07 · 4 answers · asked by Anonymous

2007-09-04 09:47:14 · 15 answers · asked by Anonymous

2007-09-04 09:45:37 · 18 answers · asked by funk4lfe 1

Am i correct in thinking that one H2O molecule = 1.5mol
therefore, 18H2O molecules simply = 18 * 1.5?
giving me a final answer of 27mol?
thanks!

2007-09-04 09:45:17 · 3 answers · asked by Anonymous

And which one do you think I should take?

2007-09-04 08:57:36 · 9 answers · asked by ? 7

2007-09-04 07:19:37 · 5 answers · asked by charles j 2

i want to use it to trap this freaking mosquitos.

2007-09-04 05:29:34 · 9 answers · asked by Rodolfo R 2

I hope some of you could help me. The acid already stained my cookie sheet. I already left it for about three weeks now. Can I use water and baking soda ?

2007-09-04 05:27:10 · 3 answers · asked by Anonymous

Explain how you found the answer.

2007-09-04 05:23:37 · 2 answers · asked by JoeSchmo 1

I would like to also know if what is the proper process in clearing my pan. Is water an option ? Soap perhaps ?

2007-09-04 05:17:30 · 2 answers · asked by Anonymous

solid, liquid, gas, plasma

2007-09-04 04:39:21 · 4 answers · asked by Mari 1

A particular brand of gasoline has a density of 0.737 g/mL at 25 degreesC, How many grams of this gasoline would fit in a 14.8 gal tank. Please help me solve this!

2007-09-04 04:38:52 · 6 answers · asked by Anonymous

For example, (aq) and (s). What do they mean?

2007-09-04 04:36:07 · 2 answers · asked by Anonymous

2007-09-04 04:32:54 · 2 answers · asked by sweetchik5188 2

Fahrenheit
Kelvin
Celsius

2007-09-04 04:26:54 · 5 answers · asked by desigoddess217 1

How would you explain the decreased enzyme activities below and beyond the optimum pH?

2007-09-04 02:38:28 · 1 answers · asked by cometoid 1

2007-09-04 02:26:13 · 9 answers · asked by Anonymous

since HE was the FIRST to discover the right-handed, and left-handed molecules in the atmosphere?

2007-09-04 02:21:49 · 6 answers · asked by thewordofgodisjesus 5

in terms of laboratory chemistry

2007-09-04 02:16:47 · 2 answers · asked by nico 2

Given the following densities at 25C. magnesium:1.7g/cm3 graphite: 1.8g/cm3 iron: 7.9g/cm3

A block of iron has a mass of 826 g. What is the mass of a block of magnesium that has the same volume as the block of iron?

My answer is 178 g Mg. Is this correct?

2007-09-04 02:14:21 · 4 answers · asked by Dan 2

which of these ores are economically viable to extract copper from? Chalcocite , Chalcopyrite , Malachite , Cuprite , Tenorite , Bornite ,Azurite , and Chrysocolla. thankz

2007-09-04 02:12:22 · 2 answers · asked by The MD 2

2007-09-04 02:07:32 · 3 answers · asked by rhez 1

What is the function of sodium chloride in this experiment?

2007-09-04 01:56:25 · 4 answers · asked by jack_hock2003 1

Calculate the percentage of nitrogen in 1 mole of the above fertilizers.
[ Relative atomic mass: H, 1; C,12; N,14; O, 16; P, 31; S, 32 ]

Which of the above fertilizer is the most suitable for the growth of plants? Explain your answer.

2007-09-04 01:54:03 · 4 answers · asked by jack_hock2003 1