Question

which is most likely to occur during a chemical reaction? (1 point)
new atoms are created.
mass is conserved.
the original substance maintains its properties.
atoms of the original substance are lost.

Explanation:

• In a chemical reaction, atoms are rearranged, not created or lost. So "New atoms are created" and "Atoms of the original substance are lost" are incorrect.
• The original substances (reactants) change into new substances (products) with different properties. So "The original substance maintains its properties" is wrong.
• According to the law of conservation of mass, mass is conserved in a chemical reaction.

Answer:

Mass is conserved.