Acids & Bases
Is a substance with a pH of 7 an acid, base, or neutral?
What is Neutral
What state of matter has a definite shape and volume?
What is a Solid
Which subatomic particle has a positive charge?
What is a Proton
What is the symbol for Oxygen?
O
Physical or Chemical Change?
Melting an ice cube
What is a Physical Change
Is a substance with a pH of 3 an acid or base?
What is an Acid
Ice melts into water. What phase change occurred?
What is Melting
Which subatomic particle has no charge?
What is a Neutron
What element has the symbol Na?
Physical or Chemical Change?
Burning wood
What is a Chemical Change
Is a substance with a pH of 11 an acid or base?
What is a Base
Water vapor turns into liquid water on a cold glass. What phase change occurred?
What is Condensation
Which subatomic particle moves around the nucleus?
What is an Electron
What is the symbol for Gold?
Au
Physical or Chemical Change?
Cutting paper
What is a Physical Change
Acids taste ______
What is Sour
Dry ice changes directly from solid to gas. What phase change occurred?
What is Sublimation
Which particle determines the identity of an element?
What is a Proton
What element has the symbol Fe?
What is Iron
Physical or Chemical Change?
Rust forming on a bike
What is a Chemical Change
Bases feel ______
What is Slippery
Frost forms on grass when water vapor changes directly into ice. What phase change occurred?
What is Deposition
An atom has 8 protons. How many electrons does a neutral atom have?
8
What element has the symbol Ag?
What is Silver
Physical or Chemical Change?
A new substance forms during a reaction
What is a Chemical Change