math
taylor was having a party.she invited 20 friends to her party, if each person shook hands with every other person .how many handshakes would there be? please explain,thanks
chemistry
OK thanks.... In the question, and in the example in the textbook there was no example of using an ICE table. Tables make assigning values so much easier
chemistry
Sorry I should have left that out, it's just the formula HCOOH(aq) <-----> H^+ (aq)+ HCOO^-(aq)
chemistry
HCOOH(aq) <-----> H^+ (aq)+ HCOO^-(aq) The equilibrium constant (Ka) for Reaction 3 at 25 °C is 1.80 × 10−4 mol dm−3. Calculate the equilibrium concentration of hydrogen ions if the concentration of formic acid at equilibrium is 0.00500 mol dm−3
science
Oh yeah! Those values apply to this equation: HCOOH(aq) <-----> H^+ (aq)+ HCOO^-(aq)
science
The equilibrium constant (Ka) for Reaction 3 at 25 °C is 1.80 × 10−4 mol dm−3. Calculate the equilibrium concentration of hydrogen ions if the concentration of formic acid at equilibrium is 0.00500 mol dm−3. (Show all of your working and give your a...
Math grade 8 (algebra)
The perimeter of the square is 2cm longer than the perimeter of the triangle.Write an equation for the perimeter of the square and then determine the length of each side of the square. Thank you in advance.
Math
Red beads = 16 Yellow beads = 16-8 = 8 Green beads = 16 +7 = 23 16 red, 8 yellow, 23 green is 16+8+23 = 47 total beads
English
choosing a conjunction and the relationship it expresses: ------you buy a rare manuscript, make certain of its authenticity. I used "Before" but it would be "time" or Should I use "If" and it would be "condition" This is so confusing!!!
Chemistry
I'm asked to tell which of the following peptide segments is most likely to be part of a stable Alpha Helix at physiological pH? Only 1 can be chosen 1. gly-gly-gly-ala-gly 2. gly-arg-lys-his-gly 3. pro-leu-thr-pro-trp 4. lys-lys-ala-arg-ser 5. glu-leu-ala-lys-phe 6. glu-g...
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