Vocabulary that Matters
Chemicals Don't Reason they React
Balancing Act
Miscellaneous
Physical/Chemical?
100
When one or more substances are changed into new substances is called this.
What is a chemical reaction?
100
In chemical reactions the -> symbol stands for this.
What is yields?
100
When the number of atoms are equal on both sides of the equation, this law has been fulfilled.
What is the Law of Conservation of Mass
100

2AlCl3

What is the subscript?

What is 3.

100

Digesting food

What is Chemical

200
When the number of atoms is equal on each side we say that the equation is this.
What is balanced?
200
When heat is produced, light is emitted, or a precipitate is formed this is an indication of this
What is a chemical reaction/change?
200
These are used to help balance chemical equations.
What are coefficients?
200

What is the coefficient?

3CaCl2

What is 3.

200

Water Evaporating from a pond.

What is physical.

300

A reaction that absorbs energy is considered  ___________________.

What is Endothermic.

300
In the chemical reaction, Mg + O -> MgO, the compound MgO is located on this side of the equation.
What is the product side?
300
Balance the following chemical equation. You must show all work and simplify your answer. Fe + O2 --> Fe2O3
4 Fe + 3O2 --> 2Fe2O3
300

What does the Law of Conservation of Mass state?

What is mass is neither created nor destroy in a chemical reaction.

300

Burning wood to make a fire.

What is Chemical.

400

When a reaction gets warmer it is typically an ______________________ reaction.

What is Exothermic.

400

Name 3 indicators/evidence that a chemical reaction has occurred.

What is:Gas production

Precipitate

Unexpected color change

Temp change

Properties change

400
Balance the following equation. You must show all work and simplify your answer! Li + Br2 --> LiBr
2Li + Br2 --> 2LiBr
400

What is the difference between a heterogeneous mixture and a homogeneous mixture?

What is heterogenous is not uniform and you can see all the different parts and homogenous is uniform and it all looks the same.

400

Melting down the element Gallium .

What is Physical.

500

Draw an example of an element, compound, and mixture.

Teacher will check drawings.

500
These 3 things are essential in writing a chemical equation.
What are reactants, an arrow, and products?
500

Balance the following formula:

C2H6 + O2 --> CO2 + H2O

What is a 2, 7, 4, 6 reaction.

500

How many atoms are there for each element?

H2SO4

What is

H-2

S-1

O-4

500

Photosynthesis 

What is Chemical.

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