Misconception SCM029:

Mass is not conserved during processes in which gases take part (Mas et al., 1987; Berkheimer et al., 1988; Hesse et al., 1992). If a gas is produced during a chemical reaction that takes place in a closed system, the total mass decreases (Ozmen et al., 2003).

Items that test for misconception SCM029 in this key idea (Whenever atoms interact with each o…)
Item ID
Number

Item Description

How Often the Misconception was Chosen

Select This Item for My Item Bank

SC092004

When a liquid changes to a gas in a sealed container and the number of atoms stays the same, the mass of the jar and everything in it also stays the same.

30%

Items that test for misconception SCM029 in other key ideas

SC077005

If a chemical reaction occurs between two liquids in a sealed jar, the mass will not change if a gas is formed, and it will not change if a solid is formed.

52%