Chem Final Reviewsample question

Given:• Periodic table• Polyatomic ion names and formulas table, reactivity

series, percent error formula

Bring: calculator, pencil, eraser, something do do (non electronic) for when the final is over

Notecard: • You can use one, hand written, 3x5 notecard that you

provide for the test. It must be written by you with whatever content you want– It will be turned in after the test.

Chemistry Final Info

Things that are hard to remember (maybe put on your notecard?)

• Diatomic elements: • VSEPR diagrams: linear, bent, trigonal planar, etc• Prefixes for naming covalent compounds• Rules for naming ionic compounds• Conversion? Milli, centi, kilo, etc (staircase?)• Formula for density• Diatomic molecules? Notecard: You can use one, hand written, 3x5 notecard that you provide for the test. It must be written by you with whatever content you want

It will be turned in after the test.

1. Diatomic2. State of matter3. Reactant4. Product5. Synthesis6. Decomposition7. Single Replacement8. Double Replacement9. Combustion10.Balanced11.Precipitate12.Soluble13.Insoluble14.Aqueous

a. Reactants = Productsb. Stuff before the reaction arrowc. Solid, Liquid, Gas, Aqueousd. Dissolves in watere. Does not dissolve in waterf. H2, N2, O2, F2, Cl2, Br2, I2

g. Stuff after the reaction arrowh. A + B ABi. Complete will produce CO2 and

H2Oj. AB A + Bk. Liquids forming a solidl. AB +C AC + Bm.AB + CD AD + CBn. Solid dissolved in a liquid

Ch 8 vocab matching

1. Diatomic F2. State of matter C3. Reactant B 4. Product G5. Synthesis H6. Decomposition J7. Single Replacement l8. Double Replacement

m 9. Combustion i10.Balanced a11.Precipitate k12.Soluble d13.Insoluble e14.Aqueous n

a. Reactants = Productsb. Stuff before the reaction arrowc. Solid, Liquid, Gas, Aqueousd. Dissolves in watere. Does not dissolve in waterf. H2, N2, O2, F2, Cl2, Br2, I2

g. Stuff after the reaction arrowh. A + B ABi. Complete will produce CO2 and

H2Oj. AB A + Bk. Liquids forming a solidl. AB +C AC + Bm.AB + CD AD + CBn. Solid dissolved in a liquid

Ch 8 vocab matching

Write and Balance1. In a double replacement reaction sodium

hydroxide (NaOH) and iron (III) nitrate react. Write the balanced formula for this reaction.

2. Solid Iron (III) sulfide is produced from its solid elements. Write the balanced equation for this reaction (what type of reaction?)

3. Aqueous barium nitrate and aqueous phosphoric acid (H3PO4) react to produce barium phosphate precipitate and aqueous nitric acid (HNO3).

1. 3NaOH + Fe(NO3)3 Fe(OH)3 +3NaNO3

2. 2Fe(s) + 3S(s) Fe2S3(s)

3. 3Ba(NO3)2(aq) + 2H3PO4(aq) Ba3(PO4)2 (s) + 6HNO3(aq)

Tell if the following describes ionic or covalent bonds:

a. More conductiveb. Crystal solidc. Solid, liquid, or gasd. 2 nonmetalse. Sharing electronsf. Higher melting and boiling pointsg. Strongest

Given the symbol

What is the:1.Atomic number2.Mass number3.Number of protons4.Number of neutrons5.Number of electrons6.Average atomic mass

The mass of a neutron is _____amu, which is the same mass of another subatomic particle, the ________. Both are found in the _________ of an atom

1, proton, nucleus

Complete the reaction…1. Pb(OH)4 + NaCl

2. Pb + NaCl a) Are you sure about that answer???

3. AgNO3 + MgCl2

4. KOH

Pg 286

Isotopes are atoms of the same element that have different(choose all that apply) a. principal chemical propertiesb. numbers of protonsc. Massesd. numbers of electronse. Number of neutrons

2. What is the density of 35.0 g of matter whose volume is 5.0 cm3?a. 0.14 g/cm3

c. 175 g/cm3

b. 7.0 g/cm3

d. 7.14 g/cm3

1. What is the formula for density?

The dimensions of a rectangular solid are measured to be 1.27 cm, 1.3 cm, and 2.5 cm. The volume should, using correct significant figures, be recorded asa) 4.128 cm3

b) 4.13 cm3.c) 4.12 cm3.d) 4.1 cm3.

Expressed in scientific notation, 1. 0.0930 m isA. 93 x 10–3 m.B. 9.30 x 10–2 m.C. 9.3 x 10–3 m.D. 9.30 x 102 m.

2. 930000m E. 9.3x105

F. 9.3x10-5

G. 9.3x106

H. 9.3x10-6

1. Precision pertains to all of the following excepta. reproducibility of measurements.b. agreement among numerical values.c. sameness of measurements.d. closeness of a measurement to an accepted value.2. 3 measurements were taken; 1.81, 1.82, 1.81, and the accepted value is 1.81. These measurements have good: A. AccuracyB. PrecisionC. Both

The mass of a neutron isa. about the same as that of a proton.b. double that of a proton.c. about the same as that of an electron.d. double that of an electron.

1. Which is the ground-state electron configuration for ?

a. [Ar] 4s23d4

b. [Ar] 4s33d3

c. [Ar] 4s13d5

d. [Ar] 4s43d2

2. What is hund’s rule? e- fill empty orbitals in an energy level before sharing orbitals

1. Transition elements are found in which of the following group(s) of the periodic table?a. Group 1b. Groups 3–12c. Groups 1 and 2d. Group 18

2. Write for formula for Nickel II fluoride

3. Write the name for CuCl4

NiF2

Copper (IV) Chloride

1. Bohr’s theory helped explain whya. electrons have negative charge.b. most of the mass of the atom is in the nucleus.c. excited hydrogen gas gives off certain colors of light.d. atoms combine to form molecules. 2. Most of the volume of an atom is occupied by thea. nucleus.b. electron cloud.c. Nuclides.d. protons.

1. In many compounds, atoms of main-group elements form ions so that the number of electrons in the outermost energy levels of each ion isa. 2b. 8c. 6d. 10

2. What are the exceptions to the octet rule? H, He- full with 2 electrons

When the light from excited atoms of an element is passed through a prism, the distinct colored lines produced are calleda. ground states.c. line-emission spectra.b. excited states.d. electromagnetic spectra.

1. A compound that has the same number of positive and negative charges is said to bea. cationic.b. neutral.c. anionic.d. isoelectronic.

2. What is the ratio of cations to anions in a compound composed of sodium ions, Na+, and carbonate ions, ?a. 1 to 1b. 2 to 1c. 1 to 2d. 3 to 1

1. What is the formula for the compound formed by lead(II) ions and chromate ions, CrO4

2–?a. PbCrO4

b. Pb2(CrO4)3

c. Pb2CrO4

d. Pb(CrO4)2

Name the compound CuO.a. Copper(I) carbonateb. cuprous carbidec. cupric trioxycarbided. copper(II) carbonate

1. A polar covalent bond is most likely to form between two elements that a. Have the same electronegativityb. Have different electronegativityc. Are symmetricald. Both (a) and (c)2. Which is nonpolar? a. CO2

b. Cl2

c. HCl

Which coefficients correctly balance the formula equation CaCO3(s) CaO(s) + CO2(g)?a. 1, 1, 1b. 2, 6, 3c. 1, 3, 1d. 3, 1, 2

1. 2SO2 + O2 2SO3

2. Al2(SO4)3 + 3Ca(OH)2 2Al(OH)3 + 3CaSO4 3. 2C2H2 + 5O2 4CO2 + 2H2O4. Mg + 2AgNO3 Mg(NO3)2 + 2Ag5. 3Ba(NO3)2 + 2H3PO4 Ba3(PO4)2 + 6HNO3

6. Mg(ClO3)2 MgCl2 + 3O2

7. 2Be + O2 2BeO8. 2Al + 3CuSO4 Al2(SO4)3 + 3Cu9. 2PbO2 2PbO + O2

10. 2C2H6 + 7O2 4CO2 + 6H2O

1. S2. DR3. C4. SR5. DR6. D7. S8. SR9. D10.C

What type of chemical reaction is each of the following?