pH
A measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral.
What is pH?
A special type of homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.
What is a solution?
Phase change from a solid to a gas.
What is sublimation?
A chemical substance composed of many identical molecules (or molecular entities) composed of atoms from more than one element held together by chemical bonds.
What is a compound?
A systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe
What is science?
A molecule or ion capable of either donating a proton, or, capable of forming a covalent bond with an electron pair.
What is an acid?
A substance dissolved in another substance
What is a solute?
A solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a lattice that extends in all directions.
What is a crystal?
an atom or molecule with a net electrical charge
What is an ion?
The scientific study of the properties and behavior of matter.
What is chemistry?
A substance which dissociates in aqueous solution to form Hydroxide ions OH−
What is a base?
the abundance of a constituent divided by the total volume of a mixture.
What is concentration?
A high-temperature exothermic redox chemical reaction between a fuel (the reductant) and an oxidant, usually atmospheric oxygen, that produces oxidized, often gaseous products, in a mixture termed as smoke.
What is combustion?
a Danish physicist who made foundational contributions to understanding atomic structure and quantum theory, for which he received the Nobel Prize in Physics in 1922. He proposed that energy levels of electrons are discrete and that the electrons revolve in stable orbits around the atomic nucleus but can jump from one energy level (or orbit) to another.
Who is Neils Bohr?
The age of the Universe, +/- 100 MY
What is 13.77 BY?
13.67-13.87 BY
A chemical reaction in which acid and a base react quantitatively with each other. In a reaction in water, this results in there being no excess of hydrogen or hydroxide ions present in the solution.
What is neutralization?
a mixture in which constituents are distributed uniformly, such as salt in water
What is a homogenous mixture?
the theory describing three of the four known fundamental forces (the electromagnetic, weak, and strong interactions, while omitting gravity) in the universe, as well as classifying all known elementary particles. It was developed in stages throughout the latter half of the 20th century, through the work of many scientists around the world,[1] with the current formulation being finalized in the mid-1970s upon experimental confirmation of the existence of quarks.
What is the Standard Model of Particle Physics?
a fundamental theory in physics that provides a description of the physical properties of nature at the scale of atoms and subatomic particles
What is quantum mechanics?
The age of our solar system, +/- 100 MY.
What is 4.571 billion years?
4.471-4.671 BY
the ongoing decrease in the pH value of the Earth's oceans, caused by the uptake of carbon dioxide (CO2) from the atmosphere.
What is ocean acidification?
substance, ordinarily a liquid, in which other materials dissolve to form a solution.
What is a solvent?
a simple, historically significant classical model of the thermodynamic behavior of gases, with which many principal concepts of thermodynamics were established. The model describes a gas as a large number of identical submicroscopic particles (atoms or molecules), all of which are in constant, rapid, random motion. Their size is assumed to be much smaller than the average distance between the particles. The particles undergo random elastic collisions between themselves and with the enclosing walls of the container.
What is the kinetic theory of matter?
the hypothetical charge of an atom if all of its bonds to different atoms were fully ionic. It describes loss or gain of electrons in an atom in a chemical compound.
What is the oxidation state (oxidation number)?
The natural science that studies matter,[a] its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force.
What is physics?