Q: If distance between Na+ & Cl-1 ions in Sodium chloride crystal is X pm, then edge
length of the unit cell is :
a) 4X pm
b) X/4 pm
c) X/2 pm
d) 2X pm

Explain why scientists use shared characteristics to make cladograms.

Sulfuric acid is a polyprotic acid. write balanced chemical equations for the sequence of reactions that sulfuric acid can undergo when it's dissolved in water.

How many moles of sulfuric acid (h2so4) are needed to react completely with 6.8 moles of lithium hydroxide (lioh)? 2lioh + h2so4 → li2so4 + 2h2o a. 3.4 mol h2so4b. 6.8 mol h2so4 c. 10.2 mol h2so4 d. 13.6 mol h2so4