WorksheetsBonding, Naming, & Reactions
Total questions: 27
Worksheet time: 14mins
What are valance electrons?
an outer shell electron that is associated with an atom that is responsible for the chemical properties of the atom
a positive charge
an atom
How do you determine the number of valance electrons using the periodic table?
add and then divide your numbers
its the same as the transition metals with the exception of their group number
it is the same as their group number with the exception of transition metals
What is an oxidation number?
shows how many electrons are in an atom
a number that represents represents the number of electrons gained or lost
how much rust there is
What are the different types of bonds?
ionic, covalent, metallic
transversal and longitudinal
acids and bases
Ionic elements occur between..
metal and nonmetal
2 metals
2 non metals
Covalent elements occur between..
metal and nonmetal
2 nonmetals
2 metals
Metallic elements occur between..
2 metals
2 nonmetals
metal and nonmetals
What are the steps for naming an ionic compound?
the ending of the non metals name changes to ide
there are no steps
it keeps its name
What are the steps for naming a covalent compound?
the endings won't change
the first word could have a prefix and the second word will have a prefix and the ending will change to ide
What does the law of conservation of mass say?
can be created
it changes overtime
the mass of the system must remain constant over time and systems mass cannot change, so quantity can't be added or removed.
What are coefficients?
the number that are in front of formulas
the numbers behind the formulas
the numbers that are in between formulas
What are subscripts?
a chemical formula
a coefficient
used to indicate when more than one atom of a specific element is found in a molecule
Where are coefficients written in a chemical equation?
in front of the molecule
after the molecule
in between the molecule
Where are the subscripts in a chemical equation?
they are on top of the element
they are below and to the right of the element
they are in front of the element
What is an acid?
they release release hydroxide ions
molecular compounds that release hydrogen ions
they are salts
What is a base?
a foundation for something
they release hydrogen ions
they release hydroxide ions
Where on the pH scale are bases represented?
7-14
1-6
2-4
Where are acids located on the pH scale?
0-7
7-14
14-20
What happens to acids and bases when they undergo a neutralization reaction?
neutralization creates salt and water and the pH goes to 7
neutralization creates only water
neutralization only creates salt
What is the 3 in this equation: 3 C6H12O6
coefficient
subscript
acid
What are the elements in this equation: 3 C6H12O6
C, H and O
6, 12, and 6
the 3
What are the subscripts in this equation: 3 C6H12O6
C, H, and O
the 3
6, 12, and 6
What do you never change in a balanced equation?
subscripts
coefficients
elements
Balance the following chemical equation: H₂ + O₂ → H₂O
2H₂ + O₂ → 2H₂O
Cl₂ + 2NaBr → 2NaCl + Br₂
4Na + O₂ → 2Na₂O
Balance the following chemical equation: Al₂O₃ → Al + O₂
SiCl₄ → Si + 2Cl₂
C + 2H₂ → CH₄
2Al₂O₃ → 4Al + 3O₂
Balance the following chemical equation: Mg + HCl → MgCl₂ + H₂
Mg + 2HCl → MgCl₂ + H₂
2Na + Br₂ → 2NaBr
chemical equation: H₂ + O₂ → H₂O
2H₂ + O₂ → 2H₂O
Balance the following chemical equation: P + O₂ → P₄O₁₀
4P + 5O₂ → P₄O₁₀
2Na + Br₂ → 2NaBr
Mg + 2HCl → MgCl₂ + H₂
