Chemical Reactions
Mass
Signs of a Chemical Change
Molecules
Balancing of Chemical Reactions
100
This gives chemical reactions the ability to happen.
What is energy?
100
The amount matter in an object.
What is mass?
100
In the sunset in a bag demonstration, this sign of a chemical reaction, was the product changing from red to yellow to orange.
What is a color change?
100
The chemical name of water.
What is H20?
100
The substance that takes part in a chemical reaction.
What are reactants?
200
A chemical reaction can be reversed? True/False
False
200
The Law of Conservation of Mass, says that this thing can't be created or destoryed in a chemical reaction.
What is mass?
200
Cutting a piece of paper is an example of a chemical change. (True/False)
False
200
This macromolecule gives humans energy.
What is a carbohydrate?
200
The substance produced in a chemical reaction.
What is a product?
300
Baking cookies is an example of which type of reaction, Endothermic or Exothermic?
Endothermic
300
Anything that takes up space or has mass.
What is matter?
300
Melting of an ice cub is an example of a chemical change. True/False
False
300
DNA & RNA are examples of this.
What is a nucleic acid?
300
In the cheeseburger example, the cheeseburger pieces, ex. (Cheese, lettuce, meat, bun & tomato) are this.
What are the reactants?
400
This chemical reaction absorbs heat.
What is endothermic?
400
After burning the logs in a campfire, the mass is destoryed? (True/False)
FALSE!
400
Bubbing is a sign of a chemical reaction? True/False
True
400
Fats, olis and waxes are an example of this macromolecule.
What is a lipid?
400
In the cheeseburger example, the WHOLE cheeseburger is known as this.
What is the product?
500
This chemical reaction gives off heat.
What is exothermic?
500
When combing baking powder and water the reactants and products had the same mass, this decribes what law.
The Law of Conservation of Mass
500
In the sunset in a bag demonstration, we felt a temperature change, this temperature change was a type of thermal reaction.
What is exothermic?
500
A complex organic compound that forms the basis of living tissue and builds muscles.
What is a protein?
500
The number of atoms is the same in this chemical reaction. (True/False)
True