Review IPC - 1st Semester

Front

What is a chemical change?

Back

A process where one or more substances are transformed into new substances with different properties.

Front

What is the main evidence that a chemical change has occurred?

Back

A new substance is produced.

Front

What is mass?

Back

A measure of the amount of matter in an object, typically measured in grams or kilograms.

Front

What is the chemical formula for magnesium fluoride?

Back

MgF2.

Front

What type of reaction is represented by AB + XY → XB + AY?

Back

Double replacement.

Front

How do you write 0.0000378 in scientific notation?

Back

3.78 x 10^-5.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; it is conserved.

Front

What is a reactant?

Back

A substance that undergoes a chemical change in a reaction.