mp4p1+Group+1

Welcome! Rachel, Julie, and Danae

=April 6, -Mixtures-= __Materials:__ copper 2 sufate information- [] Harmful when injested.
 * test tube rack
 * test tubes(4)toc
 * graduated cylender
 * Zinc Oxide
 * Copper 2 Sulfute
 * lab scoop

Safety __Plan:__ we are going to time how longeach solution takes to disolve in water. 10 ml of water a small amount of the solution
 * Goggles

Hypothesis: I think the zinc oxide will dissolve faster then the copper 2 sulfate.

Independent variable: type of solute, and levels- Z2O and CuSO2 Dependent varialble: the time it takes to dissolve.

What happened: The Copper 2 Sulfate created a solution and the zinc oxide made a suspension.

=April, 13 -Solutions- (kool-aid lab)= __Materials:__ __Plan:__ We are going to put 1g, 2g, and 3g in 20mL of water.
 * triple beam balance
 * koolaid poweder
 * test tubes
 * water

hypothosis: The more powder we add in the darker red the color will be

Independent variable: amount of solute Dependent variable:

=April 14 -Reveiw Questions with Vocaroo-= a) element b) mixture c) compound d) solution media type="custom" key="9092882" 2. When nail polish is dissolved in acetone, which substance is the solute and which is the solvent? media type="custom" key="9092954" 3. Describe a procedure to separate a mixture of salt, finely ground pepper, and pebbles? media type="custom" key="9093068" =April 20 -Solubility Graph-= =April 26 -chemical reactions-= Sodium bicarbonate- a heartburn medication- harmful if you use more then 2 teaspoons a day- NaHCo 3 [] calcium chloride- harmful if swallowed or inhaled- used in concrete and plants- CaCl 2 bromothymal blue- harmful if swallowed, ph indecater, changed color over the range.- C27H28Br205S
 * 1) Which of the following best describes describes chicken noodle soup?

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=May 10 -The Law of Conservation of Mass-= Question: How will the mass of the reactants compare to the mass of the products in a reaction that produces a solid precipitate? Indepedant Variable: the mass of the reactants (g) Dependant variable: the mass of the products (g) Constants: the mass of the glass wear What we saw: When we combined the two chemicals they turned bright yellow. This created a suspension because it was opaque.

=May 12 -Alka-Seltzer Lab-= Question: How will the mass of a reactant and the mass of the product compare to the mass of the reactant that produces a gas? Hypothosis: IV: mass of the reactant (g) DV: mass of the product (g) constants: balance, amount of water. glass wear Summary: Between the reactants adn the products there was little change