1 molecule CO2 has 2 atoms O.
1 mole CO2 has 2 moles O,
1.5 mole CO2 has 2*1.5 mole O=3.0 mole O
Answer:
kinetic energy remains unchanged
Both elements and compounds are pure substances. While elements are not made of simpler substances, compounds are made up of two or more chemical elements that are chemically combined.
A because if it remains through the whole expídeme y the same the it doesn’t depend on anything else to change it and I got it correct