This is symbol for what type of nuclear radiation particle?
Alpha
During conduction, how is energy transferred?
particles collide
How do I calculate the mass number?
protons + neutrons
If an atom has 20 protons, 20 electrons, and 21 neutrons, what is the mass number? What is the element?
Mass number - 41
Element/Atomic number - Calcium
What will speed up a chemical reaction?
Adding heat
Stirring
Adding a catalyst
Define isotope.
atoms with a different number of neutrons and different mass
What is the measure of amount of kinetic energy of particles?
Temperature
This is a symbol for what type of nuclear radiation particle?
Beta
Write the formula for Cobalt (II) Phosphate
Co3(PO4)2
What is sublimation?
solid to a gas
Why do atoms bond?
stability - to have 8 valence electrons
What is deposition?
Gas to a solid
How do I determine if the bond is ionic or covalent?
Ionic bonds - elements on the left and right side of the staircase.
Covalent bonds - both on the right side of the staircase
Calculate the heat required to head 250 grams of water from 21 C to 53 C. The specific heat capacity of water is 4.18 J/g C.
Use the equation - Q=mC(Temp Final - Temp Initial)
33,440 J
What is a combination of two or more substances?
Mixture
List 3 physical properties.
List 3 chemical properties.
Physical Properties: Color, Mass, Boiling Point
Chemical Properties: Ability to Rust, Reactivity, Flammability
Balance this equation
answer on board
Define ion.
atoms with a different number of electrons - have a positive or negative charge
Why do you use roman numerals when naming an ionic compound?
when the cation can be found in groups 3-12
What type of thermal transfer drives plate tectonics?
convection
How does an exothermic reaction make the surface of the object feel? Why?
Hot - because it releases heat
What is defined as matter with a fixed composition?
Substance
List 3 chemical changes
Rotting
Burning
Rusting
Can substances be broken down using a chemical process? Why?
Yes
Heat flows in what direction?
high to low
Write the name for the following.
Dinitrogen Monoxide
What is the name for the following compound?
Aluminum Sulfide
Your experience on this site will be improved by allowing cookies.