31. Which of the following pairs of solutions produces a precipitate when combined? A) KOH and NH4Cl
C) Na2SO4 and KCI
B) Fe(NO); and KCI
D) NH4Cl and AgNO3

Identify and describe the three ways that mutations affect organisms.

What is the correct lewis structure for chloroform chcl3

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]