For the reaction Pb(NO3)2 + 2KI → Pbl2 + 2KNO3, how many moles of lead iodide are produced from 189.9 g of potassium iodide?
Select one:
O a. 0.572
Ob. 4.38e4
O c. 1.24
O d. 1.24
PLEASE HELP

The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?