These are the three categories of the elements in the Periodic Table.
What are metals, nonmetals, and metalloids?
100
This is N.
What is Nitrogen?
100
Covalent compounds are called this.
What are molecules?
100
The type of bond that occurs between two nonmetals.
DD: The model of a covalent bond written.
What is covalent?
DD---What is electron dot model?
100
These are gas and solid formation and energy and color changes.
What are the signs of reactions?
200
The meaning of atomic number.
What is the number of protons in the nucleus of an atom or element?
200
This is Na.
What is Sodium?
200
Number of each element in this formula.
2 Al 2 (subscript) (SO3(subscript))4(subscript)
What is 4 Al, 8 S, and 24 O?
200
Name the type of bond for Li2(subscript)O
What is ionic?
200
The ideal number of valence electrons that most elements are trying to achieve.
What is 8?
300
The energy that is the minimum requirement to start any reaction.
What is activation energy?
300
This is K.
What is Potassium?
300
Name this molecule.
P2(subscript)O5(subscript)
What is Diphosphorus pentaoxide?
300
The three ways valence electrons bond.
What is sharing, transferring, and moving freely?
300
Type of reaction that the products are broken apart or separate.
What is decomposition?
400
The type of reaction that gives off more energy than the activation energy.
What is an exothermic reaction?
400
This is Ag.
What is Silver?
400
The equation when this is balanced.
Br2(subscript) + NaI >>>>I2(subscript) + NaBr
DD----Name this type of reaction.
What is
Br2(subscript) + 2NaI >>>>I2(subscript) + 2NaBr
DD----What is double replacement reaction?
400
These are the properties of metallic bonds. (Name 3).
What is conductivity, malleability, and ductility?
400
These are ways to increase reaction rates. Name 3.
What are increasing temperature, surface area, the concentration of a reactant, or add a catalyst?
500
Compound of two atoms bonded together which is some of the simplest molecules that exist.
What are diatomic molecules or diatomic elements?
500
This is W.
What is Tungsten?
500
Balancing equations is a way to demonstrate this law.
What is the law of conservation of mass?
500
Name how to find the oxidation numbers of both metals and nonmetals.
What is counting with 1 only with tall columns on periodic table and counting positively with metals going right and then with nonmetals, starting at 0 and counting with negatives going left.
500
Describe a double-replacement reaction. This usually produces a precipitate or a gas.
What is two ions switching or changing places in different compounds?