Science & Mathematics - 14 August 2007

2007-08-14 09:30:54 · 3 answers · asked by Anonymous in Zoology

Solve the equation showing all steps.

3 – (x+5) = 3x + 6

2007-08-14 09:24:11 · 3 answers · asked by Anonymous in Mathematics

2007-08-14 09:23:37 · 5 answers · asked by Anonymous in Biology

A. 0.300 mol NH4Cl + 0.200 mol NaOH
B. 0.200 mol HNO3 + 0.300 mol NH3
C. 0.300 mol HNO3 + 0.200 mol NH3
D. 0.200 mol NH4Cl + 0.300 mol NH3
E. 0.300 mol NH4Cl + 0.200 mol NH3

Can somebody please explain how to do this problem, i don't even know how to approach it. Thanks so much in advance!

2007-08-14 09:17:43 · 2 answers · asked by lalala 3 in Chemistry

2007-08-14 09:16:25 · 2 answers · asked by mannu 2 in Chemistry

What if a electronic device with a button delivers some excitement? I never knew anyone who could be excited and mad or stressed at the same time.

2007-08-14 09:14:41 · 5 answers · asked by a2z_alterego 4 in Other - Alternative

Would like to know how old the Torridon Mountains are.

2007-08-14 09:12:22 · 3 answers · asked by MAURICE H 1 in Earth Sciences & Geology

2007-08-14 09:07:19 · 6 answers · asked by Anonymous in Chemistry

maggots bugs

2007-08-14 09:04:51 · 12 answers · asked by Anonymous in Zoology

Describe how the concentration of an unknown substance can be determined if a standard solution of protein is available?
Please help I'm so confuzzled =(

2007-08-14 09:01:33 · 1 answers · asked by x♥ angelica ♥x 3 in Biology

1)Put the following equation in slope intercept form. 10x - 5y = -20

2)6x - 2y = 12

the slope (m) of this equation is ___ ?

3)In the equation y = ¾x + 5, the _______ is ¾ and the y-intercept is ___.

4)Explain why the following equation is not in proper standard form.
-5x + 7y = 1

2007-08-14 09:00:22 · 7 answers · asked by Anonymous in Mathematics

Anything you can be bothered to write about, please! Tides, eclipses, anything that would be different from how we are with just one moon. Thank you very much :)

2007-08-14 08:59:48 · 7 answers · asked by ? 2 in Astronomy & Space

2007-08-14 08:58:45 · 7 answers · asked by puppy_bull_dog 1 in Mathematics

does the force from dropping the marble break the surface tension of the water?

2007-08-14 08:57:50 · 5 answers · asked by mannu 2 in Chemistry

All information about physic attacks and physic vampirism.

2007-08-14 08:54:21 · 14 answers · asked by Anonymous in Paranormal Phenomena

1-
Given a circle with an inscribed equilateral triangle with each side of the triangle having a measurement of 18 cm. What is the probability of selecting a point at random inside the triangle, assuming that the point cannot lie outside the circular region. Leave your answer in exact form. To receive full credit, please show your work.

2-
In a circle, the radius is 68 units and a chord of the circle is 120 units.
Part A: How far is the chord from the center?
Part B: Find the measure of the arc created by the chord.
To receive full credit, please show your work.

2007-08-14 08:49:08 · 3 answers · asked by Anonymous in Mathematics

1)2x + 3y = 12 is an equation in slope intercept form.

2)Put this equation in slope intercept form:
3x - 2y = -6

3)Explain why the following equation is not in slope intercept form: x = ¾y - ¼

4)Which of the following equations has a slope of 2 and a y intercept of -3?

2007-08-14 08:47:18 · 6 answers · asked by Anonymous in Mathematics

2007-08-14 08:47:05 · 2 answers · asked by Anonymous in Mathematics

With millions starving on Earth, is it worth the superpowers spending so much sending probes etc into space?

2007-08-14 08:46:44 · 28 answers · asked by Anonymous in Astronomy & Space

what frequency is affected by Doppler effect:
the frequency of sound, or the frequncy of pulses?

2007-08-14 08:46:33 · 4 answers · asked by Alexander 6 in Physics

My pipe threader isn't making the threads deep enough, every time I screw my fittings on it smokes because of the friction and makes shavings where the threads contact. Any ideas on what is going on?

2007-08-14 08:45:51 · 4 answers · asked by freeagent165 2 in Other - Science

My sister read something online that organic farms are allowed to use animal fertilizers. If anyone knows anything about this please let me know. Thank you.

2007-08-14 08:40:27 · 8 answers · asked by Anonymous in Agriculture

2007-08-14 08:39:37 · 11 answers · asked by Mayabel M 1 in Geography

2007-08-14 08:39:18 · 9 answers · asked by K.S 2 in Astronomy & Space

Answer: Attack thier most vulnerable organ. I believe that humanity is being manipulated with chemicals designed to transfer into our bloodstream with uncanny speed and efficientcy to condition our thoughts about world events. The skin is what i elude to and brain control is the outcome. The culprits behind such a travisty must be exposed. Have you an idea 'bout how to insulate yourself from these 'chemical onslaughts?

2007-08-14 08:38:30 · 5 answers · asked by racer123 5 in Biology

Will someone (with experience) tell me if it is indeed completely necessary for me to take Freshman level Biology before I take Cell Biology, I mean I have a pretty decent background in Biology but our Cell teacher is supposed to be really hard, so...... I am taking Pre-Med classes, so I really do not need a bad grade. I want to thank you all for any input!!!!

2007-08-14 08:37:47 · 2 answers · asked by Anonymous in Biology

Is it just me, or am I seeing more butterflies this time of year than usual? Does it have anything to do with the drought conditions in the area?

2007-08-14 08:37:47 · 3 answers · asked by Noah’s Dad 2 in Zoology

Just a few questions.

1. Find the gram equivalent mass for H3PO4

2. Find the gram equivalent mass for Mg(OH)2.

3. How many equivalents are in 10.5 grams of Al(OH)3?

4. How many equivalents are in 5.4 grams of Ca(OH)2?

5. Find the normality of 2.4 M H2CO3.

6. Find the normality of 0.65 M Ba(OH)2 .

7. What is the normality of a solution containing 2.4 g of H3PO4 in 350 mL of solution?

8. Complete the following equation:

Ca(OH)2 + HCl →
9. What volume of 0.58M HF is needed to neutralize 55.2mL of 0.79M Al(OH)3?

10. What is the molarity of Ba(OH)2 if 65.2mL are neutralized by 154.2 mL of 0.50 M HCl?

11. What volume of 0.24 M LiOH is needed to neutralize 125 mL of 0.85 M H2SO4?

12. What volume of 0.050 M Mg(OH)2 is necessary to neutralize 10.5 mL of 0.54 M HNO3?

13. A 25.3 g sample of KOH in 150.5 mL of solution is reacted with 0.75 M H2SO4. What volume of the acid is needed to neutralize the base?

2007-08-14 08:37:40 · 3 answers · asked by Anonymous in Chemistry

1.) 60 is what % of 30

2.) 26% of 72

3.) 350 seats in an auditorium , 140% number of seats in the orgiinal auditorium, how many were in the orginal Aud?

2007-08-14 08:36:58 · 6 answers · asked by JXSPhoenix 1 in Mathematics

2007-08-14 08:36:46 · 8 answers · asked by Anonymous in Zoology