The Atom
What is chemistry the study of?
Matter
Which type of phase has a definite volume, but no definite shape?
Liquid
How are solutions formed?
When a solute is dissolved in a solvent.
How are salts formed?
Formed when a metal reacts to an acid
What is fission?
The splitting of an atom
What are the subatomic particles in the nucleus?
Protons and Neutrons
What is sublimation?
When matter goes from a solid to gas
Which phase of matter dissolves into liquid to create soda or a carbonated drink?
Gas
Which substance, when dissolved in water, conducts a current?
Electrolyte
Fusions
A compound is two or more elements that can only be chemically combined
Examples include but not limited to:
Water ( H2O )
Carbon Dioxide (CO2)
Methane (CH4)
Does the temperature, increase, not change, or decrease during a phase change?
Does not change
Which is present in larger amounts, solute or solvent?
Solvent
Which type of ion is produced when an acid is dissolved in water?
Hydrogen ion
The stability of an isotope is based on its:
Is an element homogeneous or heterogeneous?
Homogeneous
Which phase of matter has the least amount of attraction forces holding the particles together?
Gas
What are alloys?
Solid mixtures of metals
Give 2 examples of chemical properties:
Options include, reactivity combustibility, flammability, acidity, and ability to rust
Which type of radioactive emission has a positive charge and weak penetrating power?
Alpha particle
What is the difference between an excited state and ground state of an atom?
In excited state the electrons occupy higher energy levels and ground state occupies the lowest available energy levels.
Describe the shape and volume of an aluminum cylinder at STP
What is the difference between miscible and immiscible?
Miscible means liquids mix and immiscible means liquids can't mix.
What is Law of Conservation of Mass?
Mass cannot be created or destroyed
If you have 60 chocolate bars and their half-life is 5 days, how many chocolate bars will there be left after 15 days? (Can include halves of chocolate bars)
7.5 chocolate bars