Wednesday
December 4, 2013

# Posts by Juan

Total # Posts: 159

Chemistry
Which of the following represent conjugate acid-base pairs? For those pairs that are not conjugates, write the correct conjugate acid or base for each species in the pair. a. HS-4-,SO4^2- B. HBr, BrO- c. H2PO4-, PO4^3- d. HNO3, NO2-

Chemistry
use the bronsted-lowry model to label the acid-base pairs in the following equation for the ionization of water: H20(L) + H20(L) <--> H30+(AQ) + OH-(AQ). EXAPLAIN

Math
The base of the skateboard ramp has an area of 2.3 m square meters the height of the ramp is 1.2 m find the volume of the rectangular prism

Math
You have to use 3,500 calories to lose one pound. If you play Dance Dance Revolution you can burn 1,000 calories in an hour. How many hours would you have to play in order to lose one pound? Answer is 35 3500 divided by 1,000=35 please help Ms. Sue i think this is right if not...

Chemistry
What is 431804 and 10235.0 rounded to four significant figures?

Math
It is 72

Statistics
Find the probability that for a random sample of 4 states the sample mean x is between 475 and 525

algebra
A pharmacist has 40% and 60% iodine solutions on hand. How many liters of each iodine solution will be required to produce 4 liters of a 50% iodine. 1. iodine1 = 2, iodine2=2 2. iodine1 = 21, iodine2 = 21 3. iodine1 = 41, iodine2 = 41 4. iodine1 = 41, iodine2 = 21

algebra
A pharmacist has 40% and 60% iodine solutions on hand. How many liters of each iodine solution will be required to produce 4 liters of a 50% iodine.

algebra
graph the following linear equations and determine the correct classification: L1:y=-x+5 and L2:y=-2x+1

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