Fields of Chemistry
States of Matter
Electron Arrangement
Periodic Table & Trend
Chemical Equations & Reactions
100
The term that means a proposed explanation or reason for what is observed.
What is the hypothesis?
100
A solid has a definite shape and _______
What is volume?
100
The arrangement of electrons in an atom.
What is electron configuration?
100
The ____ _____ of an element is the number of protons in the nucleus of an atom of that element.
What is an atomic number?
100
A chemical equation requires reactants and
What is a product?
200
A ____ is a broad, extensively tested explanation of why phenomenia occurs.
What is a theory?
200
After some time, the evaporated particles will return to the water in this process.
What is condensation?
200
A state in which an atom has a higher potential energy that has in it's ground state.
What is an excited state?
200
In Dalton's time, the atom was thought of as a small solid ______, somewhat like a ball bearing.
What is a sphere?
200
A small whole number that appears in front of a formula in a chemical equation.
What is coeefficient?
300
A concise statement that summarizes the results of many observations and experiments.
What is a scientific law?
300
Two or more different molecular forms of the same element in the same physical state
What is allotropes?
300
______ is the defined as the number of waves that pass a given point in a specific time, usually one second.
What is frequency?
300
Atoms that have the same number of protons but different number of neutrons.
What is isotopes?
300
A chemical reaction in which the products re-form the original reactants.
What is reversible reaction?
400
The steps involved to approach the scientific method.
What is Question, Observation, Hypothesis, Experiment, and Conclusion (QOHEC)?
400
The word that refers to motion.
What is kinetic?
400
A _____ is a particle of the electromagnetic radiation having zero mass and carrying a quantum of energy.
What is a photon?
400
The amount of energy required to move on electron from one energy level to the next.
What is a quantum of energy?
400
A list of elements organized according to the ease with which the elements undergo certain chemical reactions.
What is an activity series?
500
A _____ _____ is a homogenous has a single entity.
What is a pure substance?
500
Solids that lack an ordered internal structure; atoms are randomly arranged.
What is amorphous?
500
The bands of light were parts of what is known as hydrogens ____-______ ________ .
What is line-emission spectrum?
500
The elements that all have electronegativies between 1.1 and 2.54.
What is d-block?
500
A substance combines with oxygen, releasing a large amount of energy in the form of light and heat.
What is combustion reaction?
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