Which chemical reaction is also known as BURNING? a. OXIDATION b. FERMENTATION c. COMBUSTION
COMBUSTION
How can you tell/notice if it is a chemical or physical change?
There is a new substance that is created
What is the Product?
The new substance or final result
Which chemical reaction is used in order to PRESERVE FOOD? a. OXIDATION b. FERMENTATION c. COMBUSTION
b. FERMENTATION
What is this reaction called?
FERMENTATION
When some metals react with oxygen and water, they go ....
RUSTY
In a chemical reaction the original substances are called reactants
TRUE
What substances undergo a chance in a chemical reaction?
REACTANTS
What is a substance made in a chemical reaction?
PRODUCT
In a combustion some new substances are produced
SMOKE AND ASH
Energy change is a clue of chemical reaction
TRUE
What is combustion ?
The process of buring of a substance in the presence of air or oxygen with the liberation of heat and light is called combustion.
Igniting fuel in a car engine is an example of a ____________ reaction
COMBUSTION
Does the metal change to rust?
yes, the metal change to rust
Is burning wood a physical or chemical change?
CHEMICAL
Is going from ice to water a physical or chemical change?
PHYSICAL
Does the avocado change to rust?
yes, the avocado change to rust
explain the oxidation with your words
Some metals and some foods, react when they are exposed to air. Reacts and change to brown substance,rust
The result of a chemical reaction is a substance similar to the original substances
FALSE