Chemistry Flashcards
What is chemistry?
Chemistry is the study of matter
What is matter?
Matter is anything that has mass and takes up space
All evidence supports that matter is made up of…
particles (particle theory of matter)
give the 3 points of the particle theory of matter
These particles are always moving constantly
These particles are very tiny
These particles determine what kind of matter something is
What are the first two groups of Matter
(Pure) Substances and Mixtures
What are substances?
Substances are made up of one type of particle.
If those particles are atoms we have a…
element
If particles in our substance are molecules, we have a…
Compound
True or False
Compounds can be broken down chemically
True
What are the 2 types of compounds?
Ionic and Molecular
Give Examples of Molecular compounds
Sugar
Co2
Alcohol
Water
Give examples of Ionic compounds
Salt
Rust
Nitride
What are Mixtures made of ?
Mixtures are made up of two or more types of particles.
True or False
Mixtures are chemically bonded
False
What are Homogeneous mixtures / Solutions?
Homogeneous Mixtures are if the mixtures contains only true particles
Homogeneous= Same throughout
What are Alloys ?
Mixtures of metals that are solids in solids (metal in metal)
All Other Solutions
(Sugar water, salt water)
All Other Solutions
(Sugar water, salt water)
What are Heterogeneous Mixtures/ Mechanical Mixtures
If the mixture has things in it that are not true particles, then we have a heterogeneous mixture
Give examples of Colloids
Milk
Paint
Glue
Give examples of Suspensions
Orange Juice
Muddy Water
Snow Globe
Give examples on the “other” heterogenous mixtures
Sand
Raisin Brand
Give examples on Alloys
Steel
Brass
Bronze
what is a molecule
A molecule consists of two or more atoms chemically bonded
What is a colloid
This is when the bits are small but still larger then atoms or molecule. The bits in a colloid will not settle due to gravity
