Which of the chemical reactions whose equations are below produce a precipitate? 2KCIO3 - 2KCI +302
O CHA + 202 - CO2 + 2H20
Mg + 2HCI - MgCl2 + H2
O Pb(NO3)2 + 2Naci - PbCl2 + 2NaNO3

Why is the structure of molecule important to its function?

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.

How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process