H.A.S. Introduction to Chemistry Part 2(Hill)

H.A.S. Introduction to Chemistry Part 2

Watch “It’s Raining Film Cannisters”

Multiple Choice

One of Steve’s examples involves a chemical reaction. The other does not. Which is the chemical reaction?

• ALKA SELTZER AND WATER

• Cornstarch and water

Multiple Choice

Which example is not a chemical change?

• ALKA SELTZER AND WATER

• CORN STARCH AND WATER

Watch “Atoms and Molecules Basics”

Multiple Choice

ATOM MEANS INDIVISIBLE (CAN’T BE CUT OR DIVIDED FURTHER)

• true

• false

Multiple Select

How are molecules and atoms different?

(MOLECULES ARE MADE OF ________)

• mass

• sections

• atoms

Multiple Choice

What are water molecules made of?

• TWO ATOMS OF HYDROGEN AND TWO ATOMS OF OXYGEN

• TWO ATOMS OF HYDROGEN AND ONE ATOM OF OXYGEN

• ONE ATOM OF HYDROGEN AND ONE ATOM OF OXYGEN

• TWO ATOMS OF HYDROGEN AND THREE ATOMS OF OXYGEN

Multiple Choice

What is in the center of an atom?

• marble

• electron

• sun

• nucleus

Multiple Select

Why do oxygen atoms bond to hydrogen atoms?

• OXYGEN ATOMS NEED TWO ELECTRONS TO FILL THEIR OUTER SHELLS

• EACH HYDROGEN ATOM SHARES ONE OF ITS ELECTRONS, WHICH FILLS THE OUTER SHELL OF AN OXYGEN ATOM

• HYDROGEN ATOMS OUTER SHELL IS ALSO FILLED, BUT IT ONLY NEEDS TWO ELECTRONS TO FILL ITS OUTER SHELL.

Multiple Choice

What is an atom?

• The smallest unit of matter

• The smallest unit of measurement

• Your next door neighbor

Multiple Select

Which TWO of the following subatomic particles are inside the nucleus?

• protons

• electrons

• neutrons

• There are no subatomic particles in the nucleus of an atom.

Multiple Choice

Why is the overall charge of an atom neutral (0)?

• They have the same number of protons and neutrons.

• They have the same number of protons and electrons.

• They have the same number of electrons and neutrons.

Multiple Choice

The smallest particle into which an element can be divided and still be the same element is a(n)

• proton

• neutron

• electron

• atom

Multiple Choice

What are the 3 subatomic particles that make-up the atom?

• protons, neutrons, and isotopes
• neutrons, isotopes, and electrons
• positives, negatives, and electrons
• protons, neutrons, and electrons

Multiple Choice

What subatomic particle(s) would be found orbiting the nucleus?

• Neutrons only
• Electrons only
• Protons and Neutrons
• Protons and Electrons

Multiple Choice

What subatomic particles would you find in the nucleus of an atom?

• Protons only
• Protons and Neutrons
• Neutrons and Electrons
• Protons and Electrons 

Multiple Choice

An element is made up of only one kind of _____.

• isotope
• plastic
• atom
• metal

Multiple Choice

Which of the following represents an element?

• H₂O
• H₂
• NaCl
• CaCO₃

Multiple Choice

If the number of protons equal the number of _____, the atom will have no charge

• protons
• neutrons
• electrons
• nucleus

Multiple Choice

Carbon is considered an element while carbon dioxide is considered a compound. This is because carbon dioxide is –

• a gas at room temperature.
• made of two different elements.
• given off by green plants.
• useful to human beings.

Multiple Choice

the central region of an atom where its neutrons and protons are is its 

• nucleus 
• electron cloud
• core 
• center 

Multiple Choice

all matter is made of what 

• energy 
• atoms 
• electrons 
• compounds 

Multiple Choice

Which sub-atomic particle is responsible for reactions between most atoms?

• Proton

• Neutron

• Electron

• None of these

Multiple Choice

An electron is smaller than an atom.

• True

• False

• Whic

Multiple Choice

neutrons

• no charge, shells

• positive charge, nucleus

• no charge, nucleus

• negative charge, shells

Multiple Choice

protons

• negative charge, nucleus

• positive charge, shells

• positive charge , nucleus

• neutral charge, nucleus

Multiple Choice

Atoms bond because THEY ARE TRYING TO FILL THEIR VALENCE SHELL WITH ELECTRONS

• true

• false

Multiple Select

_______ AND _______ CHARGES ATTRACT EACH OTHER

• NEGATIVE

• POSITIVE

Multiple Choice

electrons can run away from the nucleus?

• true

• false

Multiple Choice

Electrons move at high speed

• true

• false

Multiple Choice

We say an atom has neutral charge because THE POSITIVE CHARGES OF THE PROTONS IS NEUTRALIZED BY THE NEGATIVE CHARGES OF THE ELECTRONS

• true

• false

Multiple Choice

What is the charge of an electron?

• positive

• negative

• neutral

Multiple Choice

Where do you find electrons?

• inside nucleus

• connected to protons

• ORBIT around THE NUCLEUS

Multiple Choice

How are protons different from neutrons?

Answer-( PROTONS HAVE A POSITIVE ELECTRICAL CHARGE, NEUTRONS HAVE NO ELECTRICAL CHARGE)

• true

• false

Multiple Select

A NUCLEUS (MADE OF _______ AND _________)

• protons

• electrons