2/24 - 3rd 9 Weeks Review

3rd 9 Weeks Review

Chemistry

Earth and Space

Multiple Choice

What is the atomic number of this atom?

• 1

• 3

• 4

• 7

Multiple Choice

What is the mass of this atom?

• 1

• 3

• 4

• 7

Multiple Choice

:What is letter “A.”pointing to?

• Proton

• Neutron

• Electron

Multiple Choice

What is letter “B” pointing to?

• Neutron

• Proton

• Electron

Multiple Choice

What is letter “C”. pointing to?

• Neutron

• Proton

• Electron

Multiple Choice

How many protons does Lithium have?

• 1

• 3

• 4

• 7

Multiple Choice

How many protons does platinum have?

• 78

• 117

• 195

Multiple Choice

How many neutrons are in this element?

• 26

• 29

• 30

• 55.845

Multiple Choice

How many electrons does this element have?

• 25

• 26

• 29

• 30

Multiple Select

Select the elements that have 8 valence electrons. (more than one answer)

• Ne

• Br

• Kr

• Xe

Multiple Choice

How many valence electrons are in this atom?

• 2

• 3

• 5

• 6

Multiple Choice

What is the reactivity of Argon?

• High

• Low

• Stable / Non-reactive

Multiple Choice

Based on the drawings, which one is the least reactive?

• Chlorine, because it has three energy levels with seven electrons in the third level

• Gallium, because it has four energy levels with three electrons in the fourth level

• Neon, because it has two energy levels with eight electrons in the second level

• Tin, because it has five energy levels with four electrons in the fifth level

Multiple Choice

What is the reactivity of Group 18

• High

• Low

• Stable / Non-reactive

Multiple Choice

An atom has 18 protons and 8 valence electrons. Which statement would best identify this element?

• The element is "happy" or stable because its outer energy level is filled.

• The element has an atomic mass of 18.

• The element is highly reactive with eight electrons in its outer shell.

• The element is a metal.

Multiple Choice

What determines the reactivity of an element?

• Size of its nucleus

• Number of total electrons

• Number of valence electrons

• Number of shells

Multiple Choice

How many Sodium (Na) are in 6NaCl?

• 1

• 12

• 6

Multiple Select

What elements are in an amino acid with the formula C₅H₁₁NO₂? (select all that apply)

• carbon

• hydrogen

• nitrogen

• nobelium

• oxygen

Multiple Choice

How many O's are in Al₂(SO₄)₃

• 4

• 12

• 7

• 24

Multiple Select

Which elements are in the chemical formula CH₃CO₂? (select all that apply)

• carbon

• hydrogen

• cobalt

• oxygen

Multiple Choice

Identify elements in the following compound: NaCl

• Sodium, Carbon

• Nitrogen, Chlorine

• Sodium, Chlorine

Multiple Choice

The formula for baking soda is given.

NaHCO3

This formula indicates that the most basic unit of baking soda contains -

• 1 hydrogen atom, 1 sodium atom, 3 carbon atoms, and 3 oxygen atoms

• 1 sodium atom, 1 hydrogen atom, 1 carbon atom, and 3 oxygen atoms

• 1 potassium atom, 1 helium atom, 1 carbon atom, and 1 oxygen atom

• 1 carbon atom, 1 helium atom, 1 calcium atom, and 3 oxygen atoms

Multiple Choice

Bubbles form around a potato in a container of hydrogen peroxide. Bubbles indicate the formation of a new substance because bubbles -

• could show that a gas is forming

• always rise to the top of a liquid.

• are almost always perfectly spherical.

• usually burst after a few minutes.

Multiple Choice

In which experiment are new substances being formed?

• Experiment 1

• Experiment 2

• Experiment 3

• Experiment 4

Multiple Choice

Which observation is evidence that a chemical reaction has occurred?

• The mass of the solution remains the same.

• Phase changes are observed.

• The color of the solution remains clear.

• The temperature of the solution increases.

Multiple Choice

Which of the following is an example that includes evidence of a chemical reaction?

• A sample of zinc is placed in water and it settles to the bottom

• A solid block of ice is heated and it completely melts into a liquid. 

• Sugar that is burned gives off an odor and turns brown and then black.

• A tomato is placed into a blender and chopped up into smaller pieces.

Multiple Choice

Evidence of a chemical reactions is anything that shows - 

• a new substance has formed

• a solid dissolved in a liquid

• interaction between 2 gases

• a change in the state of matter

Multiple Choice

A student observes some sugar as it is heated and burns. The student concludes that a chemical reaction has occurred. Which of the following observations about the burning sugar provides evidence of a chemical reaction?

• Heat is added to the sugar crystals.

• The sugar melts and becomes a liquid.

• Gas is produced as the sugar turns black and bubbles

Multiple Choice

For an investigation a student poured a blue solution of CuSO₄ into a beaker. The student placed a shiny, silver-colored strip of zinc metal in the solution and observed the changes.
The student inferred that a chemical reaction occurred. What evidence supports this inference?

• A dark solid formed on the zinc metal.

• The zinc metal remained silver-colored and shiny

• The CuSO₄ solution turned blue when the zinc metal was added.

• None of these

Multiple Choice

Which of the following is a good conductor of heat, malleable, ductile, and shiny?

• Metal

• Nonmetal

• Metalloid

Multiple Choice

Which element is a metalloid?

• Titanium

• Selenium

• Potassium

• Polonium

Multiple Choice

Which two elements are in the same period?

• Boron and Carbon

• Potassium and Sodium

• Lithium and Magnesium

• Zinc and Nitrogen

Multiple Choice

Period 1, Group 18

• Hydrodgen

• Sodium

• Flourine

• Helium

Multiple Choice

Each diagram above represents an atom of a different element. Based on the diagrams, which two elements would be in the same period?

• Elements 2 and 3

• Elements 3 and 4

• Elements 1 and 3

• Elements 1 and 4

Multiple Choice

Which of the following pairs of elements is in the same period?

• Li and Mg

• N and P

• B and F

• Si and As

Multiple Choice

what period would this element be in?

• 6

• 8

• 3

• 16

Multiple Choice

Which two elements on the periodic table are in the same period?

• Se and Te

• Sn and Rb

• K and Ba

• F and Cl

Multiple Choice

Earth's rotation on its axis is what causes ______________________________.

• seasons

• moon phases

• day and night

• weather

Multiple Choice

What are the reasons for the season?

• Earth's tilt & rotation

• Earth's tilt & revolution

• Earth's rotation & rovolution

• Earth's tilt & resolution

Multiple Choice

Which season is taking place in the Northern Hemisphere in Position 1?

• Winter

• Spring

• Summer

• Fall

Multiple Choice

Which season is taking place in the Southern Hemisphere in Position 4?

• Winter

• Spring

• Summer

• Fall

Multiple Choice

How much time passes between Position "a" and Position "g"

• One Day

• One Week

• Two Weeks

• One Month

Multiple Choice

Which lunar phase is visible when the moon is in this position?

• New moon

• Full moon

Multiple Choice

Two friends want to go for a night hike when there is a full moon in July. If there is a third-quarter moon on July 2, what is the approximate date of the next full moon?

• July 9

• July 16

• July 23

• July 30

Multiple Choice

What moon phase is at position 2?

• Waxing Gibbous

• Waning Gibbous

• Waxing Crescent

• Waning Crescent

Multiple Choice

A student viewed the moon through binoculars one week after a new moon. Which image shows the phase of the moon that the student observed?

Multiple Choice

A student models moon phases. Which numbered diagram represents the student modeling a full moon?

Multiple Choice

A student shows a model of Earth and the moon to class. Which picture shows how the moon appears from Earth when it is in the position shown in this model?

Multiple Choice

Use the calendar to predict the moon phase on March 9th.

• New Moon

• Full Moon

• Third Quarter

• First Quarter

Multiple Choice

What moon phase is shown in the picture?

• Waning Gibbous

• Waning Crescent

• Waxing Gibbous

• Waxing Crescent

Multiple Choice

What moon phase is shown in the picture?

• Waxing Crescent

• Waxing Gibbous

• Waning Gibbous

• Waning Crescent

Multiple Choice

What moon phase is shown in the picture?

• Waxing Crescent

• Waxing Gibbous

• Waning Gibbous

• Waning Crescent

Multiple Choice

What moon phase is shown in the picture?

• Waning Crescent

• Waning Crescent

• Waning Gibbous

• Waxing Crescent

Multiple Choice

What type of tides would this arrangement of earth-moon-sun create?

• neap tide

• spring tide

• new moon tide

• full moon tide

Multiple Choice

What type of tide would this arrangement of earth-moon-sun create?

• full moon tide

• new moon tide

• neap tide

• spring tide

Multiple Choice

Which diagram represents the alignment of the Earth, Moon and Sun during a spring tide?

Multiple Choice

Which model shows the positions of the sun, moon and Earth that have the greatest effect on ocean tides?

Multiple Choice

The diagram models four lunar phases. During which lunar phase is the tide the highest?

• 1

• 2

• 3

• 4