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.
More
Less
The same amount of
Different types of
The substances that combine in a chemical reaction are called ______________________.
Acid
PH
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.
More
Less
Exactly
None of the above
This is NOT a clue that a chemical reaction may have occurred.
Change in color
Change in location
Change in temperature
Production of a gas
Production of a precipitate
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
H2O (water) has a pH of around ______ .
3
7
10
212
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 _____________________________.
Change in temperature
Change in color
Formation of a gas
Formation of a precipitate
All of the above
None of the above
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
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