Giraffes
If 10g of baking soda reacts with 20g of vinegar in a sealed container, the total mass of the products after the reaction will equal this amount.
What is 30 grams?
State whether this equation follows the Law of Conservation of Mass: Fe +O2 -> Fe2O3
What is No or Unbalanced?
The chemical formula for water.
What is H2O?
State whether this reaction is balanced or unbalanced: 2Fe + 3Cl2 -> 2FeCl3
What is balanced?
Balance the combustion of propane: C3H8 + ___O2 -> 3CO2 + 4H2O by identifying the coefficient for O2.
What is the coefficient 5?
To balance the equation N2 + ____H2 -> 2NH3, state the coefficient that belongs in front of H2.
What is the coeffeicient 3?
The name of Mrs. Jones' toy poodle.
Who is Ruby?
The total number of oxygen atoms on the reactant side of this equation: CH4 + 2O2 -> CO2 + 2H2O
What is 4 oxygen atoms?
Salt dissolved completely in water creates a uniform composition throughout, making it this type of mixture.
What is a homogeneous mixture or solution?
In this type of system, matter cannot enter or leave, ensuring that the total mass measured on a balance stays constant before and after a reaction.
What is a closed system?
Brass is a solid solution made by melting together copper and zinc. Because the two metals are evenly distributed, brass is classified as this type of mixture.
What is a homogeneous mixture?
Identify the single missing coefficient needed to balance this equation: CH4 + ____O2 -> CO2 + 2H2O.
What is a coefficient of 2?
In this type of system, matter and energy can freely enter or escape into the surrounding environment.
What is an open system?
32 grams of methane reacts with 128 grams of oxygen gas. According to the Law of Conservation of Mass, state the expected total mass of all products combined.
What is 160 grams?
In a closed beaker, 100 grams of reactant A reacts with reactant B to produce 150 grams of product. Calculate the starting mass of reactant B.
What is 50 grams?
Count the total number of atoms across all reactants in the photosynthesis reaction: 6CO2 + 6H2O -> C6H12O6 + 6O2
What is 36 total atoms?
Look at the product side of 2AlOH3 + 3H2SO4 -> Al2(SO4)3 + 6H2O. Calculate the total number of oxygen atoms in the products.
What is 18 oxygen atoms?
In the expression 2Al(OH)3, this is the total count of hydrogen atoms.
What is 6 hydrogen atoms?
Determine if this chemical equation is balanced or unbalanced: 2Na + Cl2 -> 2NaCl
What is balanced?
Look at the product side of 2Al(OH)3 + 3H2SO4 -> Al2(SO4)3 + 6H2O. Calculate the total number of atoms in the reactants.
What is 35 total atoms?
During a chemical reaction, chemical bonds break and new bonds form, but these fundamental units of matter are never created or destroyed.
What are atoms?
Look at 2Na + ______ -> 2NaCl. Identify the missing reactant molecule.
What is Cl2?
Trail mix, salad, and granite rock are examples of this type of mixture where individual components remain distinct and unevenly distributed.
What is a heterogeneous mixture?
A data table shows Reactant A (12g) reacting with Reactant B (18g) in an open beaker. If 5 grams of gas escapes, state the mass of the remaining product in the beaker.
What is 25 grams?
The reason we count atoms on both sides of a chemical equation is to prove this fundamental scientific law.
What is the Law of Conservation of Mass?