Structure and Properties of Matter
Chemical Reactions
100

What are the top 3 states of matter?

Solid,Liquid,Gas

100

What is a chemical bond?

The attraction between atoms

200

What is H2O made of?

Hydrogen and Oxygen

200

what is the arrow in a chemical equation called?

Yield

300
What is a coefficient?

The amount of groups of the combination

300

How do we make sure the equation is correct?

Both the product and reactants are equal

400

What is a subscript?

A subscrip is te amount of the single atom

400

What is the difference between chemical and physical change?

Physical change is when you change the appearance while chemical change is an internal change

500

What recives the energy in this situation:

A ice pack on a bruised arm

The bruised arm

500

Is bond making endothermic or exothermic?

Exothermic