Chemical RXN

Lesson 1 Mixtures & Solutions

100

Is a solution a mixture?

yes

200

What are the qualities of a heterogenous mixture

- can be physically separated

- not permanent

300

In a solution, there are two parts. What are they called?

Solute- solid

Solvent- liquid (water)

400

Pick the correct word to complete the sentences.

Milk and sugar water are both ( mixtures / pure substances)

However, milk is a (colloid / solution) and sugar water is a (colloid / solution).

Mixtures

Colloid

Solution

Lesson 2 Chemical Change

100

What is an example of a chemical change?

burning candle

baking soda and vinegar

campfire

200

If you decrease the temperature during a chemical reaction, what will happen to the speed of the reaction?

It will slow down or decrease 

300

All chemical reactions result in what?

a new substance

400

Provide an example of an exothermic and endothermic reactions.

Ms. Douglass will judge the answers and give a score 

Lesson 3 Modeling Chemical RXN

100

In the following chemical reaction, what are the reactants?

4 Al + 3 O₂  --> 2 Al₂O₃

4 Al + 3 O₂ 

200

Define the Law of conservation of mass

matter cannot be created or destroyed only change forms 

300

If the mass of the reactants is 12.4, what will the mass of the products be in a chemical reaction that is in a closed system? Why is this?

12.4- Law of Conservation of Mass

400

Check to see if this chemical equation is balanced on your board. (list the elements and their amount on the products and reactants' sides) Is it balanced? How do you know?

Carbon- 3                        Carbon- 3

Hydrogen- 8                    Hydrogen- 2

Oxygen- 2                       Oxygen- 5

no- because the products and reactants are not balanced

Lesson 4 Producing Useful materials

100

What is used to make synthetic materials?

petroleum products, a natural resource can be used too 

200

Give three examples of useful synthetic materials - make sure to say why they are useful 

Ms. douglass will judge the answers 

300

What is different between polymers and monomers- explain why polymers are good

poly= many

mono= one

polymers have long flexible fibers that are useful and durable for more tings

400

If we were never able to use or make new synthetic products again, what may be some issues that occur in the world? How would it change the way we live?

Ms. Douglass will judge answers