Chemistry Basics
States of Matter
The Periodic Table
Chemical Bonding
Mixtures and Solutions
100

What is the smallest unit of an element? 

What is an atom? 

100

What state of matter has a definite shape and volume?

What is a solid?

100

What do the rows of the periodic table represent? 

What are periods?

100

What type of bond forms between atoms when they share electrons?

What is a covalent bond?

100

What is a mixture?

What is a combination of two or more substances that are not chemically bonded together?

200

Define matter. 

What is anything that has mass and occupies space? 

200

What is the change of a substance from a solid to a liquid?

What is melting?

200

What do the columns of the period table represent? (These elements have similar chemical properties)

What are groups? 

200

What type of bond forms between atoms when one atom transfers electrons to another?

What is an ionic bond?

200

What type of mixture has a uniform composition throughout?

What is a homogeneous mixture?

300

What are the three states of matter?

What are solid, liquid, and gas?

300

What state of matter has volume but no definite shape (takes the shape of its container)? 

What is a liquid? 

300

What do the elements in the same group or family of the periodic table have in common?

What are similar chemical properties?

300

 Name the compound with the chemical formula H₂O.

What is water?

300

Give an example of a homogeneous mixture.

What is saltwater?

400

What is the difference between an element and a compound?

What is that an element is made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together?

400

What state of matter has no definite shape or volume? 

What is a gas? 

400

Which element on the periodic table has the symbol "H"? 

What is Hydrogen? 

400

What is the chemical formula for sodium chloride?

What is NaCl?

400

What is a solution?

What is a homogeneous mixture composed of a solute dissolved in a solvent?

500

What is the difference between an atom and a molecule?

An atom is the smallest unit of an element that retains its chemical properties, consisting of a nucleus (protons and neutrons) surrounded by electrons. A molecule, on the other hand, is a group of two or more atoms held together by chemical bonds.

500

What is the process where a liquid is turned into a gas? 

What is evaporation? 

500

Which type of subatomic particle has a negative charge? 

What are electrons? 

500

What is the name of the force that holds atoms together in a molecule?

What is a chemical bond?

500

Give an example of a way that you can separate mixtures. 

Filtering, evaporation, etc.