What is chelex-100?

What is round off of9 999 999? What does the word set mean mathamatical? How many times does 35 go into to 85? How much is a 1874 SERIES 10 cent fractional note worth? What type of chimicalreaction is shown in the equation 2h 2 2h 2 o 2? Is 0.500 less than 0.5? What numbers go into 150 evenly? What is the average of 1530 and 15? What are the Greatest common factors of 27 and 48? Is an IQ 152 normal for a 14 years old? How do you find the probability of x is more than 1 if a fair coin is tossed 4 times and x is the PRODUCT of the number of heads times the number of tails? What is the percent decrease of 10 to 8? What polyhedron is the square? What is 128 cm converted into hands? How many millimeters in 6inches? 0.9+0.53? Is it possible for a triangle to have 3 acute angles? Who wrote the first bible and its contents? What is 729 in exponential form with a base of 3? .0874 scientific notation absolute value of the exponent for 10?