TMSCA Middle School Science

TMSCA Middle School Science21/22: Chemistry

by Courtney Kiser

Multiple Choice

What is the chemical symbol for carbon?

• C

• Ca

• Cn

• Crn

Multiple Choice

How many atoms of sodium (Na) are in one molecule of baking soda?

• 1

• 2

• 3

• 4

Multiple Choice

How many atoms make up one molecule of laughing gas?

• 1

• 2

• 3

• 4

Multiple Choice

When we combined vinegar and baking soda and created carbon dioxide what was the product?

• vinegar

• carbon dioxide and baking soda

• carbon dioxide

• vinegar and baking soda

Multiple Choice

protons

• negative charge, nucleus

• positive charge, shells

• positive charge , nucleus

• neutral charge, nucleus

Multiple Choice

neutrons

• no charge, shells

• positive charge, nucleus

• neutral, no charge, nucleus

• negative charge, shells

Multiple Choice

electrons

• no charge, nucleus

• positive charge, nucleus

• negative charge, shells

• negative charge, nucleus

Multiple Choice

atomic number

• number of protons/stands for an element

• number of neutrons

• number of electrons

• number of protons and neutrons

Multiple Choice

mass number

• number of protons

• number of electrons

• number of protons and electrons

• number of protons and neutrons

Multiple Choice

atomic symbol

• capital letter

• lowercase letter

• 2 capital letters

• 2 lowercase leters

Multiple Choice

What kind of change is a phase change?

• Physical - it's still the same substance
• chemical - it's made of chemicals 

Multiple Choice

A chemical change happens when...

• a substance is changed at the atomic level 
• bonds are broken and formed 
• a new substance is made
• all of the above! 

Multiple Choice

Which of the following are NOT signs that a chemical reaction occured?

• the properties changed
• bubbles of gas formed
• color stays the same
• smells different

Multiple Choice

What is a pure substance that cannot be broken down into any other substance by physical or chemical means. Ex: Gold, Silver, Oxygen, & Nitrogen

• element
• compound
• mixture
• salad

Multiple Choice

What type of property can only be observed by changing the substance into a new substance. Ex: Flammability, oxidation

• chemical
• physical

Multiple Choice

What is matter

• Anything which is solid
• Anything that takes up space and has mass
• when something is wrong

Multiple Choice

How many protons are in carbon?

• 12

• 6

• 0

• 7

Multiple Choice

The atomic number of an element is equal to the number of

• protons and electrons

• protons

• electrons

• electrons and neutrons

Multiple Choice

How many neutrons would a neutral atom of Iron have?

• 26

• 56

• 30

• 82

Multiple Choice

What list correctly shows the six most common elements found in organic substances?

• Carbon, Hydrogen, Oxygen, Phosphorus, Nitrogen, Sulfur

• Carbon, Helium, Osmium, Potassium, Sodium, Argon

• Carbon, Sulfur, Nitrogen, Oxygen, Potassium, Hydrogen

• Carbon, Silicon, Copper, Zinc, Iron, Hydrogen

Multiple Choice

Which of the following scientists did not make a major contribution in the field of chemistry?

• Antoine Lavoisier

• Joseph Priestly

• Ptolemy

• Ernest Rutherford

Multiple Choice

An atom of hydrogen has 1 proton and 2 electrons. This means the net charge is what?

• 1+ (cation)

• 1- (anion)

• Neither A or B

• Both A and B

Multiple Choice

What change happens to form new substances?

• phy

• symbiosis

• exostosis

• chemical

Multiple Choice

Which of the following substance would be considered a conductor of electricity?

• paper

• wood

• pure water

• copper

Multiple Choice

How many protons does an atom of the element Potassium have?

• 39

• 19

• 15

• 84

Multiple Choice

An atom is

• any small simple particle

• a small unit particle of an element

• a small unit particle of a compound

• a molecule

Multiple Choice

A molecule is

• a particle made up of atoms joined together

• a particle made up of different types of atoms joined together

• any partilcle

• a compound

Multiple Choice

A compound is

• a simple chemical

• a simple chemical made of one type of atom

• a simple chemical made up of two different types of atom

• a simple chemical made up of different types of atom

Multiple Choice

Which is the odd one out below ?

• hydrogen

• copper

• copper chloride

• scandium

Multiple Choice

Which is the odd one out below ?

• water

• carbon tetrachloride

• nitrogen

• carbon dioxide

Multiple Choice

Measure to the nearest milliliter.

• 73 mL
• 73.1 mL
• 76 mL
• 76.1 mL

Multiple Choice

What is measured with a graduated cylinder?

• Passage of time
• Distance from one thing to another
• Weight of an object
• Volume of liquid

Multiple Choice

What is the measurement using the correct number of sig. figs.?

• 8.5mL
• 8.50mL
• 8.45mL
• 8.4mL

Multiple Choice

Paper burning is a __________________ change. 

• physical
• chemical

Multiple Choice

Dry ice (solid carbon dioxide) turning into carbon dioxide gas is a 

• physical change
• chemical change

Multiple Choice

Protons + __________ = atomic mass

• electrons

• neutrons

• neither

Multiple Choice

Which example below is a chemical reaction?

• ice melting

• water boiling

• lighting a match

• grape juice freezing

Multiple Choice

Atoms are mostly made up of...

• empty space

• electrons

• solids and liquids

Multiple Choice

What is the law of Conservation of Mass?

• A measure of how much mass is created or destroyed. 
• Mass can neither be created nor destroyed during a chemical reaction.