1. A student combined silver nitrate and sodium chloride. She observed a white solid precipitate
formed. The mass of the silver chloride precipitate
was measured to be 150.15 g. According to the Law
of Conservation of mass, what is the predicted mass
of the sodium nitrate produce
AgNO
AgCl white
precipitate in
solution
Naci
NaNO
solution
solution
300.23 g
300.23 90
+ NaCl
AgNO3
AgC1
+
NaNO3
silver nitrate
and sodium chloride
yield silver
chloride
and
sodium nitrate

150.08 g

Explanation:

According the law of conservation of mass, mass can neither be created nor destroyed but is converted from one form to another.

As a result of this, the total mass of reactants must be equal to the total mass of products.

If this is so, we have been told that the mass of AgCl is 150.15 g, the total mass of products is 300.23g.

Therefore; mass of NaNO3 = 300.23 g - 150.15 g = 150.08 g

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

it's c. elements are placed in rows based on how may valencies electrons have.