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| fill in this chart [image] |
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| on the periodic table but more than one element |
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| two different types of particles |
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| you can see more than one particle |
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| see through and looks like only one type of particle. Evaporate the water to test if it is a solution |
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| a substance microscopically dispersed into another substance |
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| particles do not dissolve into eachother but are suspended and are slowly seperating. |
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| easily observable characteristics (colour, smell, taste, state, etc) |
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| testable characteristics / how it reacts with something |
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| nucleus which is made up of neutrons and protons and electrons are flying around it |
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| What is the charge, size, and location of protons |
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charge - positive
size - large
location - nucleus |
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| What is the charge, size, and location of electons |
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charge - negative
size - small
location - orbits or energy level |
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| What is the charge, size, and location of neutons |
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charge - neutral
size - large
location - nucleus |
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| What are the masses of protons nuetrons and electrons |
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| what is the atomic number relative to? (protons/nuetrons/electrons) |
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| number of protons/electrons |
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| how to find the number of nuetrons |
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| atomic mass - atomic number = nuetrons |
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| how many electrons are in each energy level |
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1 - 2 electrons
2 - 8 electrons
3 - 8 electrons
4 - 18 electrons |
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| horizontal row in periodic table |
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| vertical column in periodic table |
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solid at room temperature
shiny
malleable
good conductors
give away electrons |
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solid or gas at room temperature
dull
act as insulators
non-metals take electrons |
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| metallic and non-metallic properties |
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far right of periodic table
do not need electrons because they are stable
non reactive |
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| metal and a non metal that GIVE electrons so both are stable |
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| How do you name an ionic compound |
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| the metal keeps its name and the non metal gets ide added at the end |
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| how to figure out the formula for an ionic compound |
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| you figure out the charges for both elements and then criss cross to the opposite element |
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| two non metal SHARE electrons |
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| How do you name an molecular compound |
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| prefix + first element, prefix + second element + ending in ide |
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| how to figure out the formula for an molecular compound |
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| change the prefixes back into numbers |
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| mono di tri tetra penta hexa hepta octa nona deca |
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| law of conservation of mass |
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| mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. |
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| oxygen is one of the reactants |
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| oxidation reactions and what they are |
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corrosion - metal reacting with oxygen
combustion - fuel being burnt
respiration - |
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| two types of chemical reactions |
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| chemical reaction that releases heat |
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| chemical reaction that absorbs heat |
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| how can you alter the rate of a chemical reaction |
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using a catalyst
changing the temperature
changing the surface area
changing the concentration |
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| what do you always get after combustion |
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| which elements have two atoms in their natural state |
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oxygen gas
hydrogen gas
nitrogen gas
fluorine
chlorine
bromine
iodine
astatine |
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| what is phosphorus in its natural state |
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| what is sulfur in its natural state |
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| formula for photosynthesis |
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| 6CO2 (g)+ 6H20 (l)-> C6H1206 (aq) + 602 (g) |
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| formula for iron corrosion |
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1. All matter is made up of tiny particles
2. The particles of matter are always moving.
3. The particles have spaces between them.
4. Adding heat to matter makes the particles move faster. |
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a substance that occupies space.
particles with mass and size. |
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a pure substance
one type of particle
cannot be broken down |
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| uniform appearance and composure throughout |
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| can identify the different paarts by looking at at |
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| a liquid in another liquid that is not soluble |
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| the amount of matter in a certain space |
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| creation of a solid by mixing a solution (chemical reaction) |
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| law of definite composition |
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| compounds are pure substances that contain two or more elements combined |
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| passing an electric current through a chemical compound |
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atoms cannot be destroyed or created
atoms of the same element are identical |
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| the atom is composed of electrons surrounded by a soup of positive charge to balance the electrons' negative charges |
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| electrons orbiting positively charged nucleus |
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| small positively charged nucleus electrons orbit on different levels. |
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| dense nucleus surrounded by a cloud of electrons at different levels |
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| ability to be deformed or molded into a different shape |
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| able to be made into a wire |
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Group 1
very reactive
metals |
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Group 2
not as reactive as Group 1
metals |
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Group 17
reactive
non metals |
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| molecules made up of two atoms |
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| compounds made of two elements |
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| the ability of a substance to carry an electrical current |
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| substances that go into a chemical reaction |
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| substancesproduced by a chemical reaction |
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| a substance that speeds up a chemical reaction |
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| a protein molecule that regulates chemical reactions without being used up |
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| substances that slow down or prevent chemical reactions |
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| dipping metal in a liquid zinc to protect from rust |
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| 5 types of evidence that can be used for a chemical change |
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Odor
Energy change
Gas bubbles
Precipitate formation
Color change |
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