Science 9: Unit 2 - Matter and Chemical Changes

W[blank_start]orkplace[blank_end] H[blank_start]azardous[blank_end] M[blank_start]aterial[blank_end] I[blank_start]nformation[blank_end] S[blank_start]ystem[blank_end].

H[blank_start]azardous[blank_end] H[blank_start]ousehold[blank_end] P[blank_start]roduct[blank_end] S[blank_start]ymbols[blank_end]

HHPS has [blank_start]several different shapes[blank_end] and WHMIS has [blank_start]only one shape[blank_end].

Triangle - [blank_start]Caution[blank_end] Diamond - [blank_start]Warning[blank_end] Octagon - [blank_start]Danger[blank_end]

M[blank_start]aterial[blank_end] S[blank_start]afety[blank_end] D[blank_start]ata[blank_end] S[blank_start]heet[blank_end]

Check all that are safety equipment/ protocol for use in labs:

To safely heat a liquid, have the tube facing [blank_start]away from[blank_end] you and heat from [blank_start]below[blank_end]. But, soaking the tubes in [blank_start]hot[blank_end] water works [blank_start]better[blank_end].

Solid -> [blank_start]Melting[blank_end] -> Liquid Liquid -> [blank_start]Freezing[blank_end] -> Solid Liquid -> [blank_start]Evaporation/ Boiling[blank_end] -> Gas Gas -> [blank_start]Condensation[blank_end] -> Liquid Solid -> [blank_start]Sublimation[blank_end] -> Gas Gas -> [blank_start]Deposition[blank_end] -> Solid

Matter - Anything that has [blank_start]mass[blank_end] and [blank_start]takes up space[blank_end].

Matter is made up of __________.

Pure Substances are made up of ____________.

Check all that are examples of Pure Substances:

Some examples of Mixtures are: solutions, mechanical mixtures, suspensions and colloids.

Check all that are examples of Mixtures:

Solutions - [blank_start]homogeneous[blank_end] Mechanical mixtures - [blank_start]heterogeneous[blank_end] Suspension looks cloudy and has [blank_start]visible[blank_end] particles, while colloids have [blank_start]microscopic[blank_end] particles.

Properties are characteristics that describe a [blank_start]substance[blank_end]. Physical properties are characteristics that describe a substance's [blank_start]physical appearance[blank_end]. Chemical properties are characteristics that describe how a substance [blank_start]interacts with other substances[blank_end].

Check all that are physical properties:

Check all that are chemical properties:

A Coke and Mentos experiment is a chemical change.

Physical Change - A [blank_start]substance changes[blank_end] [blank_start]form[blank_end] but not it's [blank_start]chemical composition[blank_end]. Chemical Change - A [blank_start]new substance is formed[blank_end] because of the change in [blank_start]chemical composition[blank_end].

Check all that are indicators of chemical change:

Bananas sitting on the counter over time - [blank_start]Chemical change[blank_end] Cutting paper - [blank_start]Physical Change[blank_end] Candle burning - [blank_start]Physical Change[blank_end] Melting ice - Physical change

We use a _____ when we want to see if there are chemicals present.

Check all that are examples of tests that identify chemicals:

Reactants are the substances [blank_start]used to make[blank_end] the [blank_start]product[blank_end]. Products are the new substance [blank_start]made by the[blank_end] reactants.

Hydrogen(2) + Oxygen -> Water ([blank_start]reactants[blank_end]) -> ([blank_start]products[blank_end]) *The arrow always points to the [blank_start]products[blank_end]

Convert this to a word equation(with capital words at the beginning): FeS + HCl -> FeCl2 + H2S [blank_start]Iron Sulfide[blank_end] + [blank_start]Hydrogen Chloride[blank_end] -> [blank_start]Iron Chloride[blank_end] + [blank_start]Hydrogen Sulfide[blank_end]

Convert this to a formula equation(use "(2)" for subscripts and "2" for coefficients)(don't balance the equation): Lithium Chloride + Magnesium Oxide <- Magnesium Chloride + Lithium Oxide [blank_start]2LiCl + MgO[blank_end] <- [blank_start]MgCl(2) + Li(2)O[blank_end]

Who came up with the Law of the Conservation of Mass?

In an [blank_start]open[blank_end] system, the product can lose mass. In a [blank_start]closed[blank_end] system, the product can't lose mass.

Rewrite the equation but make it balanced(Write "x" for coefficients, and "(x)" for subtext) Fe + O(2) -> Fe(3)O(4) [blank_start]3Fe[blank_end] + [blank_start]2O(2)[blank_end] -> [blank_start]Fe(3)O(4)[blank_end]

Some sugar(60g) and water(100g) are mixed together. The product is [blank_start]160[blank_end]g. Vinegar(50g) and Baking Soda(40g) mix together and create gas that weighs 10g. It mixes in an open system. What is the leftover product's mass? [blank_start]80[blank_end]g.

Check all that are factors that affect rate of reaction:

If the temperature is [blank_start]higher[blank_end], the rate of reaction increases. If the concentration is [blank_start]lower[blank_end], the rate of reaction decreases. If the surface area is higher, the rate of reaction [blank_start]increases[blank_end].

[blank_start]Aristotle[blank_end] - Four elements: earth, air, fire and water Boyle - [blank_start]Small[blank_end] particles, [blank_start]different[blank_end] sizes Dalton - Coined "[blank_start]atom[blank_end]", [blank_start]Billiard Ball[blank_end] Model(atoms were different sizes) [blank_start]Bohr[blank_end] - Electrons move in paths and can change paths [blank_start]Rutherford[blank_end] - Nucleus has [blank_start]positive[blank_end] charge, electrons float around, atoms mainly [blank_start]empty space[blank_end] [blank_start]Canadian[blank_end] Contributions - Thorium and [blank_start]gas[blank_end] Radon Mendeleev - Came up with the [blank_start]modern[blank_end] periodic table

There's the same amount of electrons as neutrons in an atom.

The atomic number is the number of [blank_start]protons[blank_end]. [blank_start]Atomic Mass[blank_end] - [blank_start]Atomic Number[blank_end] = [blank_start]Number of Neutrons[blank_end] Atomic Number = [blank_start]Number of protons and electrons[blank_end]

Label the Parts of an Atom:

Amount of Electrons per Valence Shell(max): 1st Shell - [blank_start]2[blank_end] 2nd Shell - [blank_start]8[blank_end] 3rd Shell - [blank_start]18[blank_end] 4th Shell - [blank_start]36[blank_end]

The ion charge is determined by the number of electrons in the Valence Shells.

Protons [blank_start]>[blank_end] Electrons = Positively charged ion Electrons [blank_start]>[blank_end] Protons = Negatively charged ion

Who invented the Periodic Table that we use today?

Name these Atomic Symbols: K - [blank_start]Potassium[blank_end] Fe - [blank_start]Iron[blank_end] Cu - [blank_start]Copper[blank_end] Ag - [blank_start]Silver[blank_end] Al - [blank_start]Aluminum[blank_end] Au - [blank_start]Gold[blank_end] Hg - [blank_start]Mercury[blank_end] O - [blank_start]Oxygen[blank_end] N - [blank_start]Nitrogen[blank_end] C - [blank_start]Carbon[blank_end] H - [blank_start]Hydrogen[blank_end] Na - [blank_start]Sodium[blank_end]

The original elements use their [blank_start]Latin[blank_end] names, while more recent ones use [blank_start]English[blank_end] names.

The horizontal rows are called [blank_start]periods[blank_end] and there are [blank_start]7[blank_end] of them. The vertical columns are called [blank_start]groups[blank_end] and there are [blank_start]18[blank_end] of them.

Mendeleev had predicted spots for unknown elements on the periodic table.

Check all that are properties of metals:

Check all that are properties of non-metals:

Metalloids have ____ properties.

Chemical Name = Word Name (use "(2)" for subscripts) NaCl = [blank_start]Sodium Chloride[blank_end] [blank_start]CO(2)[blank_end] = Carbon Dioxide Al(2)O(3) = [blank_start]Aluminum Oxide[blank_end]

Aq - [blank_start]Aqueous[blank_end] G - [blank_start]Gas[blank_end] L - [blank_start]Liquid[blank_end] S - [blank_start]Solid[blank_end]

Cation - [blank_start]Positive[blank_end] charge Anions - [blank_start]Negative[blank_end] charge

To Name an Ionic Compound: Name the [blank_start]cation[blank_end] by its element's name. Name the [blank_start]anion[blank_end] but add "[blank_start]ide[blank_end]" to the end

Anions - [blank_start]Nonmetals[blank_end] Cations - [blank_start]Metals[blank_end]

Check all that are properties of an Ionic Compound:

What is this compound? Is it Ionic or Molecular?

In ball-and-stick diagrams, the [blank_start]nonmetals[blank_end] are always attached to the [blank_start]metals[blank_end].

Check all that are properties of a Molecular Compound:

Ionic Compounds have [blank_start]ionic[blank_end] bonds. Molecular Compounds have [blank_start]covalent[blank_end] bonds.

Polyatomic Ions are a group of atoms that together carry a [blank_start]single[blank_end] charge. Behaves as [blank_start]one[blank_end] ion.

Types of Reactions: Exothermic - Energy is [blank_start]released into[blank_end] the environment, causing it to [blank_start]heat up[blank_end]. Endothermic - Energy is [blank_start]absorbed from[blank_end] the environment, causing it to [blank_start]cool down[blank_end].

Corrosion, combustion, and cellular respiration are all reactions that involve [blank_start]oxygen[blank_end].

What is Combustion?

What is Corrosion?

What is Cellular Respiration?

Name these compounds using their "every day" names: H2O - [blank_start]water[blank_end] NaCl - [blank_start]salt[blank_end] CH4 - [blank_start]methane[blank_end]