D Assessement part #1 Review

D Assessement part #1 Review

Multiple Choice

Which elements have 1 valence electron?

• period 1

• group 1

• group 4

Multiple Choice

These elements are in a:

• group

• period

Multiple Choice

These elements are in a:

• group

• period

Multiple Choice

The element is in group 13, and symbol B

• Metal

• Metalloid

• Non Metal

Multiple Choice

Group 15 with symbol N

• Metal

• NOn metal

• Metalloid

Multiple Choice

Element Ra

• Metal

• Non metal

• Metalloid

Multiple Choice

Group 16 with symbol of S

• Metal

• Non Metal

• Metalloid

Multiple Choice

The red numbers in the image below represent ________

• subscripts
• coefficients
• I don't know, and don't want to try
• None of the answers are correct

Multiple Choice

The blue numbers in the image below represent ________

• I don't know, and don't want to try
• coefficients
• subscripts
• none of the answers are correct

Multiple Choice

Which of the following formulas would be used to describe molecule 4?

• C₃HO

• C₄HO

• CH₄O

• CH₃O

Multiple Choice

Which elements are in the formula shown above?

• Cobalt only

• Carbon and Oxygen

• Copper only

• Carbon and Osmium

Multiple Choice

Which of the following accurately describes the chemical formula of the molecule shown above?

• 3CH₈O

• C₃H₇O

• C₄H₈O₂

• C₃H₈O

Multiple Choice

Which of the following statements accurately describes the number of atoms in a molecule of ammonia (NH₃)?

• Three atoms of nitrogen and three atoms of hydrogen

• One atom of nitrogen and three atoms of hydrogen

• Three atoms of nitrogen and one atom of hydrogen

• One atom of nitrogen and one atom of hydrogen

Multiple Choice

Alanine is an amino acid with formula C₃H₇NO_2. How many atoms in all are in each molecule of alanine?

• 3

• 7

• 12

• 13

Multiple Choice

How many atoms of sulfur are in each molecule of H₂SO₄?

• 1

• 4

• 2

• 7

Multiple Choice

Which chemical formula has 11 atoms total

• C3H8

• C2H6

• CH6

• C4H2

Multiple Choice

A subscript is the small number below a(n) ________ that tells the number of _______ of that element.

• element symbol; atoms
• atom; element symbol
• subscript; protons
• compound; elements

Multiple Choice

An atom has an atomic number of 15 and a mass number of 31. How many protons are there in the atom?

• 15

• 31

• 16

• 47

Multiple Choice

Coal contains carbon and other elements. Carbon dioxide forms when coal burns in the presence of oxygen. Which of these is the best evidence that a chemical reaction occurs when coal burns?

• The shape of the coal changes
• Oxygen is present
• A new substance is produced
• Coal is made up of more than one element

Open Ended

Describe the formula

Ba ( OH)3 in words- Explain each elements total atoms.

STUDY THIS INFORMATION BEFORE YOU GOT TO NEXT SLIDE. REMEMBER A CHEMICAL REACTION PRODUCES A NEW SUBSTANCE WITH DIFFERENT PROPERTIES

Multiple Choice

Which of the following examples shows that a chemical reaction has occurred?

• Teeth chop up an apple slice into smaller pieces.

• Sugar placed in sugar water sinks to the bottom.

• A glass jar shatters into many pieces when dropped.

• Bleach gets rid of a ketchup stain on a white shirt.

Multiple Choice

In the reaction AB-----> A + B reactant AB has 12g and product B has 5g. How many grams should product A have?

• 17g
• 2g
• 7g
• None of the above

Multiple Choice

If reaction starts with 20g of reactants it should produce 

• a total of 40g of products
• a total of 10g of products
• a total of 80 g of products
• a total of 20g of products

Multiple Choice

Which of the following IS a SIGN of a chemical reaction?

• Dissolving
• Melting
• Bubbles form
• Expected color change

Multiple Choice

In the equation,          2Mg + O₂ ---> 2MgO, which are the reactants?

• Mg and O
• MgO
• Mg and MgO
• O and MgO

Multiple Choice

A precipitate is a 

• liquid that forms when two solids are reacted
• a solid that forms when two liquids are mixed
• a gas that forms when vinegar and baking soda react
• a change of color in a solution

Multiple Choice

A scientist performed four investigations using eight different liquids. In each investigation, the scientist combined two of the liquids and recorded observations. In which investigation is it LEAST likely that the liquids reacted chemically?

• 1
• 2
• 3
• 4

Multiple Choice

A group of students investigated physical and chemical changes using paper.  The students recorded their observations in a table.
Which student correctly recorded all the changes that took place?

• Student 1
• Student 2
• Student 3
• Student 4

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.
• No evidence of chemical reaction is present.

Multiple Choice

Four students performed four different investigations by combining different substances. Their results are shown in the table provided. In which experiment are new substances being formed?

• Experiment 1
• Experiment 2
• Experiment 3
• Experiment 4

Multiple Choice

The Great Rift Valley in Africa and the Mid-Ocean Ridge were all created by this boundary

• Divergent

• Convergent

• Reform

• Transform

Multiple Choice

• Transform boundary

• Divergent boundary

• Subduction boundary

• Convergent boundary

Multiple Choice

• fossil layers

• volcanic islands

• deep-sea sediment

• seafloor spreading

Multiple Choice

The San Andreas Fault in California is an example of a ________.

• divergent boundary

• convergent boundary

• transform boundary

• subduction zone

Multiple Choice

Where would the oldest rock be found?

• L

• M

• N

• O

Multiple Choice

What plate boundary feature is also shown?

• A ridge formed by an inactive convergent boundary

• A valley forming at an active divergent boundary

• A fault forming at an active transform boundary

• A volcano formed by an active transform boundary

Multiple Choice

Which student correctly identified the geologic process that formed the Himalayan mountains?

• 1

• 2

• 3

• 4

Multiple Choice

The San Andreas fault is a transform fault. Students were asked to make maps predicting which way land would most likely move over thousands of years. Which one is correct?

Multiple Choice

Which diagram correctly models the relative plate motion on each side of a mid-ocean ridge?

Multiple Choice

What are the three types of Evidence that supports Alfred Wegener's Theory?

• Fossils, Fish, and Land

• Sedimentary, Magma, and Climate

• Fossils, Land forms, and Climate

• Climate, Land forms, and Metamorphic rock

Multiple Choice

This is a picture of glacier scars found in Africa.  What are these evidence for?

• Africa has always been near the equator
• Africa was once in an area of the Earth that had a very cold climate
• The continents have not moved
• sea floor spreading

Multiple Choice

One piece of evidence for Plate Tectonics is that--

• some continents appear to fit together like a puzzle.

• we have video footage of the plates actually moving.

• all continents have formed from volcanic eruptions.

• the continents are no longer moving.

Multiple Choice

Fossil records indicate that the continents were once connected. How do fossil records support this claim?

• We have been able to transport the same types of fossils from one continent to another.

• Fossils of the same organism that are chemically and physically similar have been found on continents that are now separated by oceans.

• Some continents contain fossils of many different types of organisms.

Multiple Choice

Why didn't Zoe get the ball in the hole on her first try?

• right direction but not enough strength

• wrong direction but right amount of strength

• poor quality of golf club

• didn't have proper golf shoes

Multiple Choice

Why is the egg NOT moving before Zoe hits the pan?

• forces are balanced

• forces are unbalanced

• there are no forces

• none of these

Multiple Choice

Which of these involves balanced and unbalanced forces?

• golf

• pool (billiards)

• hoverboarding

• all of these

Multiple Choice

When Izzy and Zoe pull on the rope with the same amount of force, the forces are _____.

• increased

• unbalanced

• balanced

• decreased

Multiple Choice

When Izzy and Zoe pull on the rope with the same amount of force, the forces are _____.

• increased

• unbalanced

• balanced

• decreased

Multiple Choice

A car traveling at constant speed?

• Balance

• Unbalance

Multiple Select

This block will _____.

• change its motion

• accelerate

• change its velocity

• keep on doing what it is already doing

Fill in the Blank

The net force acting on the block is _____ N.

Multiple Choice

The net force acting on the object is acting _____.

• to the right

• to the left

• up

• down

Multiple Choice

Which one is balanced?

• top
• bottom
• both

Multiple Choice

What is the net force?

• 5 N
• 45 N to the left
• 5 N to the right
• 45 N to the right