Chemistry of Life

What is the smallest part of an element that can exist?

• Molecule

• Atom

• Cell

• Compound

Tags

NGSS.MS-PS1-1

What charge does a proton have?

• Negative (-)

• Positive (+)

• Neutral (no charge)

• No charge

Which part of the atom is negatively charged?

• Proton

• Neutron

• Electron

• Nucleus

What is the charge of a neutron?

• Positive (+)

• Negative (-)

• Neutral (no charge)

• Double positive

Which of the following is true about elements?

• Contains 2 or more types of atoms chemically bonded together

• Contains a mix of 2 or more types of atoms not chemically bonded

• Contains 1 type of atom only

• Can be broken down chemically

What is a characteristic of a compound?

• Contains 1 type of atom only

• Can be broken down physically

• Contains 2 or more types of atoms that are chemically bonded together

• Cannot be broken down

Which of the following is an example of a mixture?

• Water

• Oxygen

• Iron & sulfur

• Methane

How can mixtures be broken down?

• Chemically

• Physically

• Cannot be broken down

• By heating

What is a molecule?

• A single atom

• A group of atoms that are chemically bonded

• A type of chemical reaction

• A large object made of atoms

Tags

NGSS.MS-PS1-1

What can molecules be made of?

• Only different types of atoms

• Only the same type of atoms

• Either the same or different types of atoms

• Only non-chemical elements

Tags

NGSS.MS-PS1-1