Mid Term Exam Flashcards by Holy Cross

Q

What is the chemical symbol for

Sodium

A

Na

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Q

What is the chemical symbol for

Nitrogen

A

N

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Q

What is the chemical symbol for

Idodine

A

I

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Q

What is the chemical symbol for

Chromium

A

Cr

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Q

What is the chemical symbol for

Magnesium

A

Mg

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Q

What is the chemical symbol for

Phosphorus

A

P

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Q

What is the chemical symbol for

Sulfur

A

S

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Q

What is the chemical symbol for

Oxygen

A

O

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Q

What is the chemical symbol for

Calcium

A

Ca

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Q

What is the chemical symbol for

Carbon

A

C

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Q

What is the element represented by

Al

A

Aluminum

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Q

What is the element represented by

Ni

A

Nickel

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Q

What is the element represented by

Pb

A

Lead

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Q

What is the element represented by

Sr

A

Strontium

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Q

What is the element represented by

Ba

A

Barium

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Q

What is the element represented by

Sn

A

Tin

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Q

What is the element represented by

Bi

A

Bismuth

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Q

What is the element represented by

AU

A

Gold

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Q

What is the element represented by

F

A

Fluorine

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Q

What is the element represented by

Fe

A

Iron

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Q

What is the element represented by

Ba

A

Barium

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Q

What is the element represented by

H

A

Hydrogen

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Q

What is the element represented by

Sn

A

Tin

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Q

What is the element represented by

Co

A

Cobalt

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What kind of mixture is air? A. Homogenous B. Compound C. Heterogeneous

A. Homogenous

What kind of mixture is NaCl? A. Element B. Compound C. Heterogeneous

B. Compound

What kind of mixture is vegetable soup? A. Heterogeneous B. Homogeneous C. Compound

A. Heterogeneous

What kind of mixture is carbon? A. Compound B. Element C. Homogeneous

B. Element

What state of matter is neon? A. Solid B. Liquid C. Gas

C. Gas

What state of matter is olive oil? A. Solid B. Liquid C. Gas

B. Liquid

What state of matter is gold? A. Solid B. Liquid C. Gas

A. Solid

What state of matter is oxygen? A. Solid B. Liquid C. Gas

C. Gas

What kind of change is the growth of a plant? A. Physical B. Chemical

B. Chemical

What kind of change is digestion of food? A. Physical B. Chemical

B. Chemical

What kind of change is melting ice? A. Physical B. Chemical

A. Physical

What kind of change is a healing wound? A. Physical B. Chemicals

B. Chemical

What are 4 types of evidence that shows that a chemical change has taken place?

1. Change in color 2. Gives off gas 3. Transfer of energy 4. Forms a precipitate

How many significant figures does 99 have? A. 1 B. 2 C. 3

B. 2

How many significant figures does 0.00980 have? A. 1 B. 2 C. 3

C. 3

How many significant figures does 506,000 have? A. 1 B. 2 C. 3

C. 3

How many significant figures does 90 have? A. 1 B. 2 C. 3

A. 1

How many significant figures does 50.7 have? A. 1 B. 2 C. 3

C. 3

How many significant figures does 2.54 x 10 have? A. 1 B. 2 C. 3

C. 3

What is the law of conservation of Mass?

Mass is neither gained or destroyed, it is conserved.

Explain how to separate water from alcohol.

Use distillation- boil the solution until water evaporates- left with alcohol.

Explain how to separate the mixture of iron fillings and lead.

Use magnet to pull out iron fillings.

Express (34.5)(0.098) in the correct number of significant digits.

3.38

Express (3.5x10^26)/ (2.7x10^14) in the correct number of significant digits.

1.3x10^12

Express 66810.12/ 2.4 in the correct number of significant digits.

2.78

Write the answer in the number of significant digits 301 + 24.98 + 8.9 =

334.88

How many valence electrons does an atom of any element in Group 7A have? A. 6 B. 7 C. 9

B. 7

Round off 3.452 to 3 significant figures. A. 3.4 B. 3.452 C. 3.45

C. 3.45

Round 4.5x10^3 to one significant figure. A. 4.5x10^3 B. 4x10^3 C. 5x10^3

C. 5x10^3

Round off 4240 to 2 significant figures. A. 4200 B. 4300 C. 4250

A. 4200

Write the SI base units and symbols for mass.

Unit: Kilogram Symbol for unit: Kg

Write the SI base units and symbols for time.

Unit: Second Symbol for unit: s

Write the SI base units and symbols for length.

Unit: Meter Symbol for unit: m

Arrange Mg, Ra, and Be in the order of increasing ionization energy. (Getting larger)

Ra-Mg-Be

Arrange Li, F and C in the order of increasing ionization energy. (Getting larger)

Li-C-F

Arrange At, Cs and Hf in the order of increasing ionization energy. (Getting larger)

Cs-Hf-F

Who was the first to organize the periodic table? A. Dalton B. Rutherford C. Mendeleev

C. Mendeleev

What is the metric prefix for 10^3 also give the symbol for the prefix.

Prefix: Kilo Symbol: k

What is the metric prefix for 10^-6 also give the symbol for the prefix.

Prefix: micro Symbol: u (cursive u)

What is the metric prefix for 10^-12 also give the symbol for the prefix.

Prefix: Pico Symbol: p

What is the metric prefix for 10^-3 also give the symbol for the prefix.

Prefix: milli Symbol: m

What is the density of a piece of cheese that has a mass of 8.76g and a volume of 3.07 centimeters cubed?

Divide mass by volume to get your answer.

What does the metric prefix for kilo mean? A. 1000 times larger B. 100 times larger C. 10 times larger

A. 1000 times larger

Which of these is not a characteristic of most ionic compounds? A. Solid at room temperature B. Has a low melting point C. Conducts an electrical current when melted

B. Has a low melting point

How many valence electrons will an atom in group 5A have? A. 5 B. 4 C. 3

A. 5

Isotopes in an atom have the same number of what? A. Neutrons B. Mass number C. Protons

C. Protons

What are the representative elements usually called? A. Group A elements B. Group B elements C. Transition metals

A. Group A elements

What is the charge on a Nitrogen atom that has gained electrons and become an ion? A. 3+ B. 3- C. 2-

B. 3-

The electron configuration of a fluoride ion, Cl-, is what? A. The same as a neon atom B. The same as an argon atom

A. The same as a neon atom

What is the octet rule?

Atoms will share/transfer/combine to become a noble gas -"8".

Why are metals good conductors of electricity? A. Contains ions B. Are ductile C. Contain free valence electrons

C. Contain free valence electrons

Which of the following has the electron configuration of a noble gas? A. Mg B. F- C. P

B. F-

Which of the following will make an ionic bond? A. Magnesium and Bromine B. Barium and Potassium C. Chlorine and Iodine

A. Magnesium and Bromine

When a lithium atom loses its valence electrons, what is the charge on the resulting ion? A. 3+ B. 2+ C. 1+

C. 1+

Which element has the largest atomic radius? A. Al B. P

A. Al

Which element has the largest atomic radius? A. N B. Sb

B. Sb

Which element has the largest atomic radius? A. Cl B. Mg

B. Mg

The electron configuration for the Magnesium ion (Mg^2+) is what? A. Same as potassium B. Same as neon

B. Same as neon

Be able to fill in the electron dot diagram and the ion each element becomes.

See Mrs. Krumpelman

Be able to fill in the chart for Alpha, Beta and Gamma rays.

See Mrs. Krumpelman

Be able to complete the atomic mass and atomic number chart.

See Mrs. Krumpelman

Be able to fill in the particle chart for Neutrons, Electrons, and Protons.

See Mrs. Krumpelman

Today's periodic table is organized by what? A. Atomic mass B. Atomic number C. Mass number

B. Atomic number

How many neutrons are in 108/35 Ag? A. 83 B. 63 C. 73

C. 73

How many neutrons are in 68/30 Zn? A. 38 B. 48 C. 58

A. 38

What must happen to attain a noble gas configuration from an aluminum atom? A. Gain 3 electrons B. Lose 1 electron C. Lose 3 electrons

C. Lose 3 electrons

What atoms in compounds tend to have electron configurations of a noble gas? A. Halide ion B. Metallic Bond C. Octet Rule

C. Octet Rule

What is the force of attraction binding oppositely charged ions together? A. Halide Ion B. Ionic Bond C. Metallic Bond

B. Ionic Bond

What is the attraction of valence electrons for positive metal ions? A. Metallic Bond B. Ionic Bond C. Valence Electrons

A. Metallic Bond

What is a depiction of valence electrons around the symbol of an el? A. Electron Dot Structure B. Ionic Bond C. Octet Rule

A. Electron Dot Structure

What is an anion of chlorine or other halogen? A. Ionic Bond B. Halide Ion C. Metallic Bond

B. Halide Ion

What is an electron in the highest occupied energy level of an atom? A. Ionic Bond B. Electron Dot Structure C. Valence Electron

C. Valence Electron

Be able to know how to take a temperature in Celsius and put in into Kelvin.

See Mrs. Krumpelman for help.

What do all of the elements in a particular group on the periodic table have the same number of? A. Protons B. Valance electrons C. Neutrons

B. Valence electrons

Be able to calculate the percent of error in a given measurement.

See Mrs. Krumpelman for help.

When given 61/29 Cu or a similar problem. Be able to give the protons, neutrons and electrons of the element.

Example: 61/29 Cu Protons: 29 Neutrons: 32 Electrons: 29

Be able to describe the composition of a nucleus and draw Rutherford's idea of an atom.

See Mrs. Krumpelman for help.

Be able to state if an electron is lost or gained when given an element. Also know if they are a cation or anion.

Example: Br-, gained one electron, anion.

Be able to put numbers in scientific notation.

Example: 43,000,000 | Scientific notation: 4.3x10^7

Be able to find the group and period elements go into.

Example: Carbon Group: 4A Period: 2 | Xenon Group: 8A Period: 5

Be able to identify if an element is an alkali metal, alkaline earth metal, halogen, noble gas, transition metal, or an inner transition metal.

Examples: Fluoride, Halogen | Magnesium, Alkaline earth metal

Be able to calculate half life when given an element.

See Mrs. Krumpelman for help.

Know how to correctly do an electron dot diagram.

See Mrs. Krumpelman for help.

Be able to calculate the maximum number of electrons in each sublevel.

See Mrs. Krumpelman for help.

When given an element, know how many electrons are in the highest occupied energy level.

See Mrs. Krumpelman for help.

Be able to list the electromagnetic spectrum from the longest wavelength to the shortest.

Radio-radar-microwaves-infrared-visible light- UV- Xray-gamma Hint: Rob-runs-miles-in-very-ugly-xtreme-grass.

Be able to list the visible light spectrum in increasing wavelength. (shortest to longest)

Violet-indigo-blue-green-yellow-orange-red. Hint: ROY-G-BIV

Know how to find the electron configurations using the yellow brick road. Also know how to use the electron configuration to determine how many unshared pairs and element has.

See Mrs. Krumpelman if needed.

Be able to draw how electrons will transfer from one element to another and write the chemical formula for pairs of elements.

See Mrs. Krumpelman if help is needed.

Know how to find the mass of an element if given the volume and the density.

See Mrs. Krumpelman if need help