Chemistry · Foundation

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Mass is conservedRunning
Reaction vessel. Second product mass at 6.4 g. Product mass 42.4 g, Reactant mass 84 g. Currently product mass is short by 41.6 g.TUNING
t = 0.0s

Product mass

42.4g

Reactant mass

84g

Product mass is short by 41.6 g

6.4 g

Reaction vessel. Second product mass at 6.4 g. Product mass 42.4 g, Reactant mass 84 g. Currently product mass is short by 41.6 g.

What has to balancemreactants=mproductsm_{\text{reactants}} = m_{\text{products}}

What is happening

You arrive at a sealed flask on a balance during a fizzing reaction.

The class thinks mass has vanished. The flask starts at 84 g of reactants, one product weighs in at 36 g, and the second has not been weighed.