It's Elemental
These are the three main particles that make up atoms, their charges, and where they can be found.
What are
protons + nucleus ,
neutrons / nucleus,
and electrons - cloud?
This is the attractive force exerted upon the surface molecules of a liquid that makes the liquid assume the shape having the least surface area.
What is surface tension?
These compounds have a crystal lattice structure.
What are ionic compounds?
A hypothesis is an idea that can be tested repeatedly. Testing a hypothesis results in one of the two, following, dichotomous outcomes.
What is it is either supported or unsupported?
In the mnemonic device, "King Henry Died Unexpectedly Drinking Chocolate Milk," the words in the phrase represent this list of metric prefixes.
What are kilo, hecto, deca, unit, deci, centi, and mili?
The measure of energy within a system.
What is enthalpy?
He is credited with having created the first modern periodic table.
Who is Dimitri Mendeleev?
This is the chemical formula for hydroxide.
What is OH- ?
A mixture in which the particles are evenly distributed and not easily separated.
What is a homogeneous mixture?
These are seven signs that a chemical reaction has taken place.
What are: Color Change, Formation of a Precipitate, Production of an Odor, Evolution of a Gas, Production of Light, Change in Temperature, Production of Sound ?
pH is a measure of hydrogen ion concentration, while this is a measure of hydroxide ion concentration.
What is pOH?
On the periodic table, this is the name for the vertical columns.
What are Groups?
The scattering of visible light by colloidal particles.
What is the Tyndall Effect?
What is polar?
This law states that the total mass of reactant undergoing a chemical reaction is always equal to the total mass of the product in a chemical change.
What is the Law of Conservation of Mass, in terms of a chemical reaction.
It's 6.022 x 1023
What is Avogadro's Number
This is a measure of the amount of order within a system.
What is entropy?
Although his wife, Marie-Anne deserves more credit than she’s ever received, this man is known as the father of modern chemistry.
Who is Antoine Lavoissier?
This is the chemical formula for hydronium.
What is H3O+ ?
A mixture in which very small particles of one substance are distributed evenly throughout another substance.
What is a colloid?
This involves a gain of electrons. This makes the charge more negative.
What is Reduction?
Acids are proton ____________ while bases are proton ___________.
What are donors and acceptors?
An atom with a different number of neutrons.
What is an isotope?
In an experiment, this is the variable that you change.
What is the independent or manipulated variable?
Bonds that share an electron.
What are covalent bonds?
This is the difference between a scientific theory and a scientific law.
What is:
A Scientific Law tells WHAT happens, a fact.
A Scientific Theory tells WHY it happens, an explanation.
?
This is the most common unit of concentration, and it is defined as the number of moles of solute present in exactly 1 L of solution.
What is molarity?
This occurs when there is a constant movement of particles between at least two phases, but no change in the amount of substance in any phase.
What is equilibrium?
Credited with creating the first atomic theory, three of his five points are still accepted as true today.
Who is John Dalton?
HCl is the chemical formula for this substance.
What is Hydrochloric Acid?
This is dissolved, while this does the dissolving.
What are solute and solvent?
Oxidation involves a ___________ of electrons. This makes the charge more positive. .
What is loss?
This is the pH range of an acid.
What is 0-7?
Graphite, charcoal, and diamond are all these of carbon.
What are allotropes?
A negatively charged electrode.
What is an anode?
The unique properties of water are due to this type of bond.
What are hydrogen bonds?
This is the difference between a chemical change and physical change.
What is:
Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula.
?
Avogadro's Number is equal to the number of units of a substance is one of these.
What is a mole?
These are the three components of Collision Theory.
What are:
Particles must collide
Particles must collide with enough energy
Particles must be properly oriented
?
This man discovered that muscle and nerve tissues function with electricity. He accidentally, and then on purpose, experimented with the posterior extremities of frogs.
Who is Galvani?
NaCl is the chemical formula for this substance.
What is Sodium Chloride?
This is a mixture in which the particles are easily separated.
What is a heterogenous mixture?
These five things can affect the reaction rate.
What are: Temperature, Pressure, Concentration, Surface Area, Catalyst
An acid-base reaction produces these.
What are water and a salt?
The amount of time it takes for one-half of a radioactive isotope to decay.
What is a half-life?
This is a compound which produces ions when dissolved in a solution such as water.
What is an electrolyte?
Peptide bonds join amino acids together to form these macromolecules.
What are proteins?
This is why science is never settled.
What is:
1- it presumes science exists in a binary state - that science isn't settled until it crosses some imaginary line after which it's finally settled. On the contrary, science by its very nature is never 100% settled.
2- it presumes that poor understanding in one area of science invalidates good understanding in other areas. This is not the case.
Natural Science is not about absolute proofs. It never reaches 100% certainty. This is the domain of the formal sciences, mathematics and logic. Science is about improving our understanding by narrowing uncertainty. Different areas of science are and likely always will be understood with varying degrees of confidence.
?
This branch of chemistry deals with quantities in reactions sort of like a recipe deal with quantities of ingredients in a dish.
What is stoichiometry?
Phase changes are endothermic or exothermic. List some examples of phase changes.
What are melting, freezing, evaporation, condensation, sublimation, and deposition?
Stephanie Kwolek is known for having invented this polymer.
What is Kevlar?
H2SO4 is the chemical formula for this substance.
What is Sulfuric Acid?
A mixture of a fluid that contains solid particles sufficiently large for sedimentation.
What is a suspension?
In this type of reaction, binary compounds typically break down into two elements.
What is a decomposition reaction?
Nucleic acids exist as base pairs in the structure of DNA. This is how the four nucleic acids pair.
What is
Adenine-Thymine
Cytosine-Guanine
?