Intro to Chemistry

This is a clue that a chemical reaction may have occurred.

Change in price

Change in time

Change in temperature

Change in reactants

This is a solid that forms in the chemical reaction between liquids.

Precipitate

Precipitation

Partipate

Partridge

The product of a chemical reaction has __________________ atoms compared to the reactants.

Less

The same amount of

Different types of

The substances that combine in a chemical reaction are called ______________________.

Acid

Products

Reactants

The production of a _______________ is a clue that a chemical reaction occurred.

PBJ

Gas

Molecule

None of the above

Adding a base to an acidic solution makes the solution ________________ acidic.

Less

Exactly

None of the above

This is NOT a clue that a chemical reaction may have occurred.

A _____________________ will NOT dissolve in a solution.

Precipitate

Sugar atom

Participation

Emotions

When the temperature INCREASES during a chemical reaction it is called a _________________ reaction.

Exersize

Exothermic

Emoji

Endothermic

____________________ is released when chemical bonds form in the products.

Icicles

Lions

Tension

Energy

Changing the amount of reactants affects the amount of _____________________ produced in a chemical reaction.

Products

Varibles

Explosions

None of the above

During a chemical reaction you may notice _____________________________.

If a glass of water with universal indicator added appears green and then blowing carbon dioxide into it changes the color to yellow what occurred?

The water became more basic

The water became more acidic

The water converted to kool-aid

The water stayed the same.

If Universal Indicator is dropped into a glass of citric acid solution which color will the solution most likely change to?

Green

Red

Blue

Purple

Intro to Chemistry

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