Chemistry 1 MAC Review
Chem I Final Review Worksheet
Name __________________________________ Hour ___________
Chem 1Review 1. 2. 3. 4. 5.
Write the number of protons for each of the metalloids in their boxes. Color the metals blue. Color the non-metals yellow. Label the groups with their numbers. Label the periods.
6. An atom that gains one or more electrons is called a(n) _____________________. This atom would have a _________________ charge. 7. An atom that loses one or more electrons is called a(n) ____________________. This atom would have a ___________________charge. 8. _________________Write the shorthand electon configuration for Potassium. 9. ___________________How many valence electrons does Potassium have? 10. ______ ______ ______ List the symbols for three other elements that have the same number of valence electrons as Potassium. What group are they in? ___________ 11. If the potassium atom were to ionize it would lose _____electron(s) from the _____ orbital. Then the potassium ion would have the same electron configuration as _____________, which is a ____________ _________. 12. ______________Draw the Lewis electron dot notation for a potassium atom. 13. ______________Write the shorthand electron configuration for Bromine. 14. ______________How many valance electrons does Bromine have? 15. ____ _____ ____ List the symbols for three other elements that have the same number of valence electrons as Bromine. What group are they in?_____________ 16. If the Bromine atom were to ionize it would gain _____ electron(s) in the ____ orbital. Then the bromine ion has the same electron configuraton as ____________, which is a _______ ______. 17. _______________Draw the Lewis electon dot notation for a Bromine atom. 18. _____________________What is the formula for potassium bromide?
Chem I Final Review Worksheet
19. _______________ what type of bond occurs between the potassium and the bromine? 20. _____________________Do the potassium and bromine share an electron? (Y/N) 21. When an atom absorbs _______________ in the form of heat or electricity, the _______________ in the atom are excited to a _______________ energy level. When they return to their ______________ state, they release _____________. 22. Write the symbols/formulas for the following substances. Circle the items that are compounds. ____________a
Hydrochloric acid
____________f
Iron(III)hydroxide
____________b Phosphorous
____________g
Hydrogen gas
____________c
____________h
Nitrate ion
____________d Copper(II) ion
____________i
Dinitrogen dioxide
____________e
____________j
Tin (II) phosphate
Fluoride ion Sodium oxalate
25. Given 2 formula units of H3PO4…2(H3PO4) ____________a
How many hydrogen atoms are present?
____________b How many phosphorous atoms are present? ____________c
How many oxygen atoms are present?
____________d What is the name of this compound? 26. Atomic #
Mass #
# of protons
# of neutrons
# of electrons
Complete Chemical Symbol
12 26 79 Give the numbers of protons, electrons, and neutrons in the atoms of each of the following isotopes. 27. barium – 137
_______ p+
________e-
________ n
28. xenon-131
_______ p+
________e-
________ n
29. The circles below represent atoms of certain elements. For each kind of element place the correct number of electrons, protons, and neutrons in the appropriate area of the atom.
Beryllium-9
Nitrogen-14
Chem I Final Review Worksheet
30. What is the mass (g) of each of the following samples? a. 5 moles Zn
b. 0.72 moles H2SO4
c. 3.5 moles Mg(NO3)2 31. What is the percent composition of oxygen in H2SO4?
32. What is the percent composition of oxygen in Mg(NO3)2?
33. How many moles are in each of the following samples? a. 0.4 grams Pb
b. 2.05 x 1015 atoms Au
c. 316 grams calcium hydroxide 34. Write the atomic number, electron configurations, orbital notations, and electron dot notations for the following elements. For the (*) elements, use the shorthand electron configuration method. Atom N
*Br
Atomic #
Electron configurations
Orbital notations
Electron Dot
Chem I Final Review Worksheet
35. . For the two elements given, fill in the following table. Element
# of Valence electrons-
Write the shorthand Electron Configuration
Oxygen Calcium
36. Directions: For the following chemical formulas or chemical names, identify it as molecular and ionic, and write the chemical name.
Molecular/Ionic
Formula
Cation Anion If ionic
Name
LiBr CCl4 P6O5 Cu(NO3)2 CaO KBr N2O3 CO2 NH4Cl
37. Ion
Mono- or Polyatomic
Cation or anion
Name
-
Br
Ca2+ ClO31Pb2+ 38. A compound is analyzed and the empirical formula is found to be CH3O. The molar mass of the molecular formula is 62 grams. Based on this information, what is the molecular formula for this compound?
Chem I Final Review Worksheet
39. Determine the molar mass of the following compound. Then determine the % composition of each element in the compound. Zn3(PO4)2
Molar mass % of zinc % of phosphorus % of oxygen
=_____________________ =_____________________ =_____________________ =_____________________
40. What is the empirical formula for a compound found to contain 22.9% sodium, 21.5% boron, 55.7% oxygen?
Write balanced chemical equations and identify the type of reaction 41.
Mg + O2 → MgO
42.
HgO → Hg + O2
43.
Zn + Cu(NO3)2 → Cu + Zn(NO3)2
44. Silver nitrate + copper (II) ______________________________________________ _____________________________________________________________________________ 45. Zinc Chloride + ammonium sulfide ____________________________________________ _____________________________________________________________________________ 46. Sodium chlorate ___________________________________________________________ _____________________________________________________________________________
Name __________________________________ Hour ___________
Chem 1Review 1. 2. 3. 4. 5.
Write the number of protons for each of the metalloids in their boxes. Color the metals blue. Color the non-metals yellow. Label the groups with their numbers. Label the periods.
6. An atom that gains one or more electrons is called a(n) _____________________. This atom would have a _________________ charge. 7. An atom that loses one or more electrons is called a(n) ____________________. This atom would have a ___________________charge. 8. _________________Write the shorthand electon configuration for Potassium. 9. ___________________How many valence electrons does Potassium have? 10. ______ ______ ______ List the symbols for three other elements that have the same number of valence electrons as Potassium. What group are they in? ___________ 11. If the potassium atom were to ionize it would lose _____electron(s) from the _____ orbital. Then the potassium ion would have the same electron configuration as _____________, which is a ____________ _________. 12. ______________Draw the Lewis electron dot notation for a potassium atom. 13. ______________Write the shorthand electron configuration for Bromine. 14. ______________How many valance electrons does Bromine have? 15. ____ _____ ____ List the symbols for three other elements that have the same number of valence electrons as Bromine. What group are they in?_____________ 16. If the Bromine atom were to ionize it would gain _____ electron(s) in the ____ orbital. Then the bromine ion has the same electron configuraton as ____________, which is a _______ ______. 17. _______________Draw the Lewis electon dot notation for a Bromine atom. 18. _____________________What is the formula for potassium bromide?
Chem I Final Review Worksheet
19. _______________ what type of bond occurs between the potassium and the bromine? 20. _____________________Do the potassium and bromine share an electron? (Y/N) 21. When an atom absorbs _______________ in the form of heat or electricity, the _______________ in the atom are excited to a _______________ energy level. When they return to their ______________ state, they release _____________. 22. Write the symbols/formulas for the following substances. Circle the items that are compounds. ____________a
Hydrochloric acid
____________f
Iron(III)hydroxide
____________b Phosphorous
____________g
Hydrogen gas
____________c
____________h
Nitrate ion
____________d Copper(II) ion
____________i
Dinitrogen dioxide
____________e
____________j
Tin (II) phosphate
Fluoride ion Sodium oxalate
25. Given 2 formula units of H3PO4…2(H3PO4) ____________a
How many hydrogen atoms are present?
____________b How many phosphorous atoms are present? ____________c
How many oxygen atoms are present?
____________d What is the name of this compound? 26. Atomic #
Mass #
# of protons
# of neutrons
# of electrons
Complete Chemical Symbol
12 26 79 Give the numbers of protons, electrons, and neutrons in the atoms of each of the following isotopes. 27. barium – 137
_______ p+
________e-
________ n
28. xenon-131
_______ p+
________e-
________ n
29. The circles below represent atoms of certain elements. For each kind of element place the correct number of electrons, protons, and neutrons in the appropriate area of the atom.
Beryllium-9
Nitrogen-14
Chem I Final Review Worksheet
30. What is the mass (g) of each of the following samples? a. 5 moles Zn
b. 0.72 moles H2SO4
c. 3.5 moles Mg(NO3)2 31. What is the percent composition of oxygen in H2SO4?
32. What is the percent composition of oxygen in Mg(NO3)2?
33. How many moles are in each of the following samples? a. 0.4 grams Pb
b. 2.05 x 1015 atoms Au
c. 316 grams calcium hydroxide 34. Write the atomic number, electron configurations, orbital notations, and electron dot notations for the following elements. For the (*) elements, use the shorthand electron configuration method. Atom N
*Br
Atomic #
Electron configurations
Orbital notations
Electron Dot
Chem I Final Review Worksheet
35. . For the two elements given, fill in the following table. Element
# of Valence electrons-
Write the shorthand Electron Configuration
Oxygen Calcium
36. Directions: For the following chemical formulas or chemical names, identify it as molecular and ionic, and write the chemical name.
Molecular/Ionic
Formula
Cation Anion If ionic
Name
LiBr CCl4 P6O5 Cu(NO3)2 CaO KBr N2O3 CO2 NH4Cl
37. Ion
Mono- or Polyatomic
Cation or anion
Name
-
Br
Ca2+ ClO31Pb2+ 38. A compound is analyzed and the empirical formula is found to be CH3O. The molar mass of the molecular formula is 62 grams. Based on this information, what is the molecular formula for this compound?
Chem I Final Review Worksheet
39. Determine the molar mass of the following compound. Then determine the % composition of each element in the compound. Zn3(PO4)2
Molar mass % of zinc % of phosphorus % of oxygen
=_____________________ =_____________________ =_____________________ =_____________________
40. What is the empirical formula for a compound found to contain 22.9% sodium, 21.5% boron, 55.7% oxygen?
Write balanced chemical equations and identify the type of reaction 41.
Mg + O2 → MgO
42.
HgO → Hg + O2
43.
Zn + Cu(NO3)2 → Cu + Zn(NO3)2
44. Silver nitrate + copper (II) ______________________________________________ _____________________________________________________________________________ 45. Zinc Chloride + ammonium sulfide ____________________________________________ _____________________________________________________________________________ 46. Sodium chlorate ___________________________________________________________ _____________________________________________________________________________
