Chapter 1
What is matter?
Anything that has mass and takes up space
What are the 3 states of matter?
What is a chemical bond?
A force of attraction the holds atoms together.
In a solution the substance present in the greatest amount is the ____.
solvent
The ability to do work or cause change is called ____.
Energy
Chemistry is the study of______.
Matter and how it changes
What is the change in matter when it goes from solid to gas?
Sublimation
What is the total amount of valence electrons an atom can have?
8
What is acceleration?
The rate at which velocity changes.
What are the two basic types of energy?
Kinetic & Potential
What does the Law of Conservation of Mass mean?
Matter cannot be created nor destroyed no matter the physical or chemical change.
What is Boyle's law?
When the pressure of a gas at constant temperature is increased, the volume of a gas decreases.
What is another term for chemical change?
Chemical reaction
How do you dilute a solution?
Add more solvent or remove a solute.
What is the equation for power?
Power = Energy transferred/Time
What is the difference between heterogeneous and homogeneous?
Heterogenous is a mixture that you can see the different parts and can easily be separated
Homogeneous is a mixture that is evenly mixed and cannot be separated easily.
What is the difference between crystalline solids and amorphous solids?
Crystalline solids are arranged in a regular repeating pattern that are made up of crystals.
Amorphous solids aren't arranged in a regular pattern and does not melt at a specific temperature.
How is the periodic table arranged?
In order by increasing atomic number. Also organized in rows called periods, and columns called groups.
What are the different types of friction?
Sliding, Rolling, Static, and Fluid
A wave that vibrates the medium in the same direction that the wave travels is called a ____.
Longitudinal wave
What system do scientists use to measure the property of matter?
International System of Units
What are all 6 changes in matter?
Freezing, melting, condensation, vaporization/evaporation, sublimation, deposition.
What is the difference between exothermic and endothermic reactions?
Exothermic releases energy. While endothermic requires more energy.
What is the difference between a colloid and a suspension?
A colloid is a mixture between small undissolved particles that do not mix. A suspension is a mixture of which particles can be seen and easily separated.
What are the three ways waves can change direction?
Reflection, Refraction, & Diffraction