Hairy Affairs
This part of the body holds a quarter of all bones in the human body.
What is the foot.
Define these three symbols when it comes to chemical reactions: +, ->, (aq)
What is delineating between compounds, delineating between reactants and products, and the compound being in an aqueous state of matter
What unit is used to measure the amount of something?
What is the mole
Identify which of the following formulas are empirical formulas
Ribose (C5H10O5)
Ethyl Butyrate (C6H12O2)
Chlorophyll (C55H72MgN4O5)
What is chlorophyll
Describe the difference between a solute, a solvent, and a solution.
What is a solution being the synthesis of a solvent and a solute, where a solute is dissolved into a solvent.
Name the natural substance that was used in ancient times as a bandage.
What is spiders web
Identify the reactants and products in the following reaction: "Hydrogen gas and sodium hydroxide are formed when sodium is dropped into water"
What are reactants: sodium and water, and products: hydrogen gas and sodium hydroxide
Convert 60 grams of potassium iodide to atoms
What is 2.18 x 1023 atoms of potassium iodide
Calculate the percent composition of each element in 3.54g of H2S
What is 5.9% hydrogen and 94.1% sulfur
Describe why water behaves so uniquely, and three properties of water that make it unique.
What is water being unique due to its hydrogen bonds, and having unique surface tension, boiling point, and vapor pressure properties.
Name the insect that can fly higher than mount Everest is tall
What is the bumblebee
What are Synthesis (A+B->AB), Decomposition (AB->A+B), Single Replacement (AB+C->AC+B), Double Replacement (AB+CD->AD+CB), and Combustion
Calculate the percent yield of a chemical reaction that produced 15.1g from the synthesis of 7.9g of potassium and 7.5g of chlorine. The expected outcome of this reaction was 15.4g.
What is 98.1%
Create two compounds that have different molecular formulas, but the same empirical formula. One of the formulas CANNOT be the empirical formula.
Answers vary
Define a colligative property, then list three colligative properties.
What is a property that changes in repose to the amount of solute, and boiling point elevation, freezing point depression, and vapor pressure lowering.
According to the America Public Power Association, what is the most frequent cause of power outages.
What is a squirrel
Balance and give the type of the following equation
Hf+N2->Hf3N4
What is 3Hf+2N2->Hf3N4 and a synthesis reaction
Identify the limiting reagent when 3.0mol of aluminum reacts with 5.3mol of Cl2 in the following balanced equation: 2Al + 3Cl2 -> 2AlCl3
What is Aluminum
Calculate the molecular formula of a compound whose empirical formula is CH2O and whose molecular compound molar mass is 90g/mol.
What is C3H6O3
Household laundry bleach is a diluted aqueous solution of sodium hypochlorite (NaClO). Calculate how many grams of solute are present in 1.5 liters of 0.70M of bleach.
What are 78.07g of NaClO
At least one color of this organizational flag appears in every national flag in the world.
What is the Olympic flag
Write the product and balance the double replacement reaction below
Na2(CO3) + Fe(NO3)3
What is 3Na2(CO3) + 2Fe(NO3)3 -> 6Na(NO3) + Fe2(CO3)3
How many grams of phosphoric acid should react with excess calcium carbonate to produce 3.74g of Ca3(PO4)2 if the balanced equation is the following
3Ca(CO3) + 2H3(PO4) -> Ca3(PO4)2 + 3CO2 +3H2O
What is 2.36g of phosphoric acid
Calculate the empirical formula of a compound that is 25.9% nitrogen and 74.1% oxygen
What is N2O5
Calculate the molality of a solution that was prepared by dissolving 10.0g of NaCl in 600g of water.
What is 0.285m NaCl solution