Dubnium Definitions
Nitrogen Numbers
The Potassium Periodic Table & Einsteinium Elements
Rubidium Reactions & Carbon Compounds
Sulfur Scientists & Lithium Laws
100
This part of a chemical equation speeds up a reaction.
What is a catalyst?
100
The two numbers that add together to make this value are 106.7 and 0.25. (Hint: use correct sig digs!)
What is 107.0?
100
A substance that cannot be broken down further by a chemical reaction.
What is an element?
100
This chemical reaction occurs when an acid and base react with each other.
What is a neutralization reaction?
100
The total mass and energy in the universe is constant.
What is the law of conservation of mass and energy?
200
The degree of inexactness in an instrumental measurement
What is uncertainty?
200
This is the atomic number of potassium.
What is 19?
200
This element is in the 3rd period and has 6 valence electrons.
What is oxygen?
200
This chemical reaction involves a single compound that is broken down into two or more simpler substances.
What is a decomposition reaction?
200
This scientist developed a theory that stated, among other things, that atoms can combine in more than one ratio to form different compounds.
Who is Dalton?
300
Dull, sometimes a gas, brittle, low density, and low melting point.
What is a nonmetal?
300
This volume of a block measures 25 mm by 10 mm by 3.75 mm. (Hint: use 3 sig digs!)
What is 938 mm^3?
300
The atomic number plus the number of neutrons.
What is the mass number?
300
This aqueous solution contains a hydrogen, a nonmetal, and an oxygen.
What is a ternary oxyacid?
300
The physical state of a substance may change from a liquid to a solid when this happens to its kinetic energy.
What is decreased kinetic energy?
400
1.00 g/mL
What is the density of water?
400
This group has three valence electrons
What is group 13 or What is group IIIA?
400
The properties of elements recur in a repeating pattern when arranged according to increasing atomic number.
What is the periodic law concept?
400
This compound contains two elements that are both nonmetals.
What is a binary molecular compound?
400
An extensively tested proposal of a scientific principle that states a measurable relationship under different experimental conditions.
What is a natural law?
500
This is the simplest representative particle in an ionic compound.
What is a formula unit?
500
The element with the electron configuration of: 1s^2 2s^2 2p^5
What is fluorine?
500
This element is in the 4th period and likes to form a binary ionic compound with chloride.
What is potassium?
500
This chemical reaction involves a more reactive element displacing another element from a compound or aqueous solution.
What is a single-replacement reaction?
500
This scientist first speculated that electrons orbit around the atomic nucleus.
Who is Bohr?
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