8.5 D & E Pre-test

Last updated over 3 years ago

10 questions

Note from the author:

8.5 D-E: Pretest on Elements vs Compounds (6th), Chemical Formulas, and Chemical vs. Physical Change (6th/7th) 

Required

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8.5 D & E Pre-test

Last updated over 3 years ago

10 questions

Note from the author:

8.5 D-E: Pretest on Elements vs Compounds (6th), Chemical Formulas, and Chemical vs. Physical Change (6th/7th) 

Required

Question 1

Sort the following as either an ELEMENT or a COMPOUND

Oxygen
Water
Gold
Sugar

ELEMENTS
COMPOUNDS

Required

Question 2

Idenitfy which of the following describe a compound. Choose ALL that apply.

Two or more elements chemically bonded together 

One element chemically bonded together 

One single atom 

Has at least two capital letters in the chemical formula 

Has one capital letter in the chemical formula 

Required

Question 3

In the chemical formula above, there are _______ atoms of Calcium, _______ atoms of Carbon, and _______ atoms of oxygen. 

Required

Question 4

How many TOTAL ATOMS are in this compound?

Required

Question 5

How many ELEMENTS are in this compound?

Required

Question 6

How many ATOMS of HYDROGEN (H) in this compound?

Required

Question 7

Select all examples of chemical changes.

Boiling water

Cooked pancakes

Soured Milk

Pencil shavings

Ice melting

Ash left after a fire

Required

Question 8

Which of the following groups contains only examples of physical changes?

bread baking, bread being sliced, bread being digested

Water boiling, a paper being ripped, wood being burned

a piece of metal being bent, a piece of metal rusting, a piece of metal tarnishing

Alcohol evaporating, a tree branch cracking, a car getting a dent

Question 9

A chemical change can best be defined as...

a change in which a new substance is formed

a change that occurs in which a reaction occurs

a change that causes the chemical formula of the matter to be rearrange into new matter

all of the choices can be used to define chemical change

Required

Question 10

10.

Look at each situation and determine whether it is an example of a physical change or a chemical change:

	Physical Change	Chemical Change	No change takes place
Cake batter to cake
Dissolving drink powder into water
Rubbing alcohol evaporates
Fireworks exploding

Question 1

Sort the following as either an ELEMENT or a COMPOUND

Oxygen
Water
Gold
Sugar

ELEMENTS
COMPOUNDS

Question 2

Idenitfy which of the following describe a compound. Choose ALL that apply.

Two or more elements chemically bonded together 

One element chemically bonded together 

One single atom 

Has at least two capital letters in the chemical formula 

Has one capital letter in the chemical formula 

Question 3

In the chemical formula above, there are _______ atoms of Calcium, _______ atoms of Carbon, and _______ atoms of oxygen. 

Question 4

How many TOTAL ATOMS are in this compound?

Question 5

How many ELEMENTS are in this compound?

Question 6

How many ATOMS of HYDROGEN (H) in this compound?

Question 7

Select all examples of chemical changes.

Boiling water

Cooked pancakes

Soured Milk

Pencil shavings

Ice melting

Ash left after a fire

Question 8

Which of the following groups contains only examples of physical changes?

bread baking, bread being sliced, bread being digested

Water boiling, a paper being ripped, wood being burned

a piece of metal being bent, a piece of metal rusting, a piece of metal tarnishing

Alcohol evaporating, a tree branch cracking, a car getting a dent

Question 9

A chemical change can best be defined as...

a change in which a new substance is formed

a change that occurs in which a reaction occurs

a change that causes the chemical formula of the matter to be rearrange into new matter

all of the choices can be used to define chemical change

Question 10

10.

Look at each situation and determine whether it is an example of a physical change or a chemical change:

	Physical Change	Chemical Change	No change takes place
Cake batter to cake
Dissolving drink powder into water
Rubbing alcohol evaporates
Fireworks exploding