Honors Chemistry 1 st Semester Final Exam Review.

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Presentation transcript:

Honors Chemistry 1 st Semester Final Exam Review

The correct chemical name for B(OH) 3 is __________________.

The correct name for CuO is ______________.

Calcium reacts with chlorine to form ____.

What is the correct Lewis dot structure for the N 3- ion?

Which of the following does not have ionic bonding? CaO AlCl 3 NF 3 K 2 O NH 4 NO 3 FeCl 3

The structural formula for Aluminum nitrate is ___________.

How many d orbitals are in the 3d group of orbitals?

A phosphorous atom has 15 protons, 16 neutrons and 15 electrons. What is its mass number?

When should you wear safety goggles?

An ion has 24 electrons, 26 protons and 30 neutrons. The complete chemical symbol is:

Who discovered the nucleus and what experiment did he perform?

You are conducting an experiment to determine the melting temperature of ice. The values you get are 6 o C, 4 o C, 5 o C, 6 o C and 5 o C. What can you say about the accuracy and precision of your results.

Which of the following is a quantitative observation? a) steam is hot b) the sky is blue c) 20.3 quarts of milk d) 1/3 of a pie

Alkaline earth metals react with non-metals. How many electrons do they gain or lose in the process?

A gold ring has a mass of 38.6 g and a volume of 2.0 mL. What is its density?

An alpha particle contains what particles? What is its mass?

What is the electron configuration for chlorine?

What is the orbital diagram for oxygen? __ __ __ __ __ 1s 2s 2p

Which of the following is a heterogeneous mixture? a) milk b) salt water c) a Coke d) a Pepsi with ice

Which element has the lowest electronegativity? a. Oxygen b. Hydrogen c. Rubidium d. Calcium

The element calcium is a a. metal b. metalloid c. semi ‑ metal d. non-metal e. both c and d

Which family or group of elements Is the most reactive of the metals? Why? The alkali metals They have the lowest ionization Energies.

If 1 inch equals 2.54 cm, how tall is a 6 foot tall man in centimeters? (6 feet)(12 inches/foot)(2.54 cm/inch) = 183 cm The alkali metals They have the lowest ionization Energies.

100.0 g of salt is added to g of water. Will the mixture be heavier than, lighter than or equal to g? Equal to g

How would you best describe the following atomic picture where each type of circle represents a unique atom?

A group of students hypothesizes that increasing amounts of NaCl in the soil will inhibit how tall bean plants grow. They do an experiment where they add 0g, 1g, 2g, 4g, 7g and 10 g of NaCl to the soil for otherwise identical bean plants. What is the independent variable? The mass of NaCl.

A group of students hypothesizes that increasing amounts of NaCl in the soil will inhibit how tall bean plants grow. They do an experiment where they add 0g, 1g, 2g, 4g, 7g and 10 g of NaCl to the soil for otherwise identical bean plants. What is the dependent variable? How tall the plants grow.

has how many significant figures? 6

has how many significant figures? 3 6

Solve the following problem using the correct number of significant figures. (151 cm)(210 cm) = 32,000 cm 2

What is in scientific notation? 4.57 x 10 -3

Salt water is an example of a a) heterogeneous mixture b) homogeneous mixture c) pure substance d) compound

Honors Chemistry Semester 1 Final Review Part 2

Which of the following is an example of a chemical change? a. tearing paper b. precipitate formation c. melting d. boiling

Which of the following is an example of a physical change? a. a plant decomposing b. melting c. rusting d. combustion

Can elements contain more than one atom? Yes! e.g., O 2 (g), N 2 (g)

Is SiO 2 an element, a compound, a homogeneous mixture or a heterogeneous mixture? A compound

As you move from right to left across a period in the periodic table, atomic size a) increases b) decreases or c) stays the same Why?

The charge on a magnesium ion is +2

An atom with a high ionization energy a) is hard to remove an electron from b) is easy to remove an electron from c) forms multivalent ions

What group of elements is the alkali metals? The first group on the left on the periodic table

What group of elements is the halogens? The second group from the right on the periodic table (F, Cl, Br, etc.

What group of elements is the alkaline earths? The second group from the left on the periodic table (Be, Mg, Ca, etc.)

What group of elements is the inert or Noble gases? The group on the far right on the periodic table (He, Ne, Ar, etc.) The second group from the left on the periodic table (Be, Mg, Ca, etc.)

Essentially all the mass in any atom comes from its protons and neutrons The group on the far right on the periodic table (He, Ne, Ar, etc.) The second group from the left on the periodic table (Be, Mg, Ca, etc.)

The number of electrons in a neutral atom is the same as its a) number of neutrons b) atomic number c) atomic mass d) number of protons e) both b and d. protons and neutrons The group on the far right on the periodic table (He, Ne, Ar, etc.) The second group from the left on the periodic table (Be, Mg, Ca, etc.)

The vertical columns on the Periodic Table are called what in addition to families of elements? Groups

In an atom, the __________ are found outside the _____________, which contains ___________ and ________. Groups

What is the formula for the compound Iron (III) carbonate?

What is the name for PCl 3 ?

Which molecule forms two pairs of electrons not shared with another atom? a.NF 3 b.SBr 2 c.CCl 4 d.NaI

In an ionic bond a) protons are shared between atoms b) electrons are shared between atoms c) protons are given/taken by atoms d) electrons are given/taken by atoms

How many bonds exist between the oxygens in O 2 ? a) 1 b) 2 c) 3 d) 4

What type of reaction best describes the following reaction: 2HgCl 2 (s) + O 2 (g)  2HgO (s) + 2Cl 2 (g) a) double-replacement b) single-replacement c) combustion d) synthesis (combination)

What are the products in the following chemical equation? Mg + CuSO 4  MgSO 4 + Cu a) magnesium (II) sulfate and copper b) manganese sulfate and copper c) magnesium sulfide and copper d) magnesium sulfate and copper

Which of the following numbers account for all of the coefficients in the following reaction: C 3 H 8 + 5O 2  3CO 2 + 4H 2 O a) 3, 8, and 2 b) 3, 8, 2, and 1 c) 5, 3, and 4 d) 1, 5, 3, and 4 e) 1, 2, 3, 4, 5, and 8

Consider the following diagram of a chemical reaction. reactants products This reaction is always a) a combustion reaction b) a double-displacement reaction c) a single-displacement reaction d) a decomposition reaction e) none of the above

If you were going to balance the following equation, what would be the coefficient of N 2 (nitrogen)? Al (s) + N 2 (g)  Al 2 N 3 (s) a) 1 b) 2 c) 3 d) 6 e) none of the above

What type of chemical reaction is represented by this equation? H 2 + O 2  H 2 O a) decomposition b) synthesis (combination) c) single-replacement d) combustion e) both b and d