Up & Atom
Atoms make up all matter and can bond together to form these larger structures.
What are molecules/compounds?
Bonus $100 if you know the difference between molecule and compound
This property describes how well a solute can dissolve in a liquid solvent.
What is solubility?
In the Synthesis lab, you blew gas into water to create this acid.
What is carbonic acid?
Bonus $100 if you can tell me the chemical equation!
The "F" in FLASH stands for this sign of gas release often seen as bubbles.
What is Fizz?
AB + C -> AC + B represents this type of reaction where one element is kicked out of a pair.
What is single replacement?
This subatomic particle has a positive charge and its total count determines which atom the element is.
What is a proton?
The expected pH of sour candy
What is below 7 pH?
In the Elephant Toothpaste lab, this liquid reactant decomposed into water and oxygen gas.
What is hydrogen peroxide (H2O2)?
The "S" in FLASH stands for this, which describes a change in color like when BTB turns yellow.
What is Shade?
What is the following reaction type:
2NO + O2 → 2NO2
Synthesis Reaction
This is the term for the center of the atom where you find the protons and neutrons.
What is the nucleus?
If the pH of a liquid is 13, that liquid is described as this.
What is basic or alkaline?
The catalyst in our replacement reaction lab that encouraged copper atoms to replace iron atoms
What is a 9V battery?
If a reaction releases heat and feels warm, it demonstrates the "H" in F.L.L.A.S.H. and the chemical reaction is considered to be this
What is exothermic?
What is the following reaction type:
Fe + CuSO4 -> FeSO4+ Cu
Single Replacement
To find the number of these subatomic particles, you subtract the atomic number from the atomic mass.
What are neutrons?
The solid chunks that form from a liquid are called this
What is a precipitate?
The chemical name of what you removed from the pennies
What is copper oxide?
The kinds of changes that are associated with physical changes (regarding reversibility)
What are usually reversible changes.
What is the following reaction type:
Mg(OH)2 + 2HNO3 → Mg(NO3)2 + H2O
What is Double Replacement
If an atom has an atomic mass of 14 and contains 7 protons, how many electrons would it need to have in its second shell to be considered a stable, neutral atom?
What is 5? (7 total electrons, 2 in first shell 5 in second)
A liquid is considered to be acidic when there is a high concentration of these atoms in the liquid
What is H+ (hydrogen)?
Explain how the copper ended up on the nail in our Penny Lab
The copper was sourced from the copper atoms in the copper oxide. We used vinegar and salt to form copper acetate from the copper oxide on the pennies. Then, we added a steel nail to the copper-rich solution and added a current to encourage the iron atoms in the nail to swap for the copper atoms in the solution, coating the nail.
A chemical change is the breaking and forming of these between atoms to create new arrangements of atoms
What are chemical bonds?
The following equation is missing a number before a molecule so it is unbalanced (number of atoms do not equal on left or right). Balance the equation by writing in the missing number in one of the spaces below:
__FeS + __HCl → __FeCl2 + __H2S
__FeS + _2_HCl → __FeCl2 + __H2S