Which of the following parts of an atom is NOT located in the nucleus?

• Proton
• Neutron
• Electron

Which of the following parts of an atom carries a neutral charge?

• Proton
• Neutron
• Electron

A ______ is a pure substance that consists entirely of one type of atom.

• atom
• element
• compound
• molecule

Which type of bond shares electrons?

• ionic bond
• cohesion
• hydrogen bond
• covalent bond

Which type of bond transfers electrons?

• ionic bond
• cohesion
• hydrogen bond
• covalent bond

Which pH is the most acidic of those listed below?

• 2
• 7
• 10
• 14

What can be added to a base or acid to limit a drastic change in pH, helping organisms maintain homeostasis?

• phenopthalein
• buffer
• salts
• sugars

Tags

NGSS.HS-LS1-3

What part of a water molecule is partially negative due to water being a polar molecule?

• hydrogen
• oxygen

What type of bond connects oxygen to hydrogen to create a water molecule? This is WITHIN a water molecule.

• ionic bond
• hydrogen bond
• polar covalent bond
• non polar covalent bond

What type of bond connects a water molecule to another water molecule? This is the ATTRACTION from one molecule to another.

• ionic bond
• hydrogen bond
• polar covalent bond
• non polar covalent bond