Chemistry Vocabulary Part TWO

Elements are represented by chemical symbol.  Symbols are written with

• all lower case letters
• all capital letters
• always only one  letter
• At least and ONLY one capital letter

A substance made by mixing other substances together and being able to then separate is the definition of a

• Combination
• Solution
• Mixture

The difference between elements and compounds is that...

• elements can be separated by physical means and compounds cannot.
• elements cannot be separated by physical means and compounds can.
• elements contain only one kind of atom and compounds contain more than one kind of atom.
• elements contain more than one kind of atom and compounds contain only one kind of atom.

Tags

NGSS.MS-PS1-1

Which type(s) of substances are considered pure substances?

• Elements only
• Compounds only
• Mixtures only
• Elements and compounds

This is the smallest substance that can make up a substance while keeping its identity. 

• Atom
• Molecule
• Element
• Compound

Tags

NGSS.MS-PS1-1

What type of substance is being represented: O₂?

• Element
• Compound
• Mixture

Tags

NGSS.MS-PS1-1

Max combines water and hydrogen to form water. What type of substance was formed?

• Element
• Compound
• Mixture

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

This type of substance is formed through a chemical change. 

• Element
• Compound
• Mixture

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which option shows only elements?

• NaCl, MgO, OH
• O, He, H, 
• OH, He, Al
• O+H, He+Al

Tags

NGSS.MS-PS1-1

What type of substance is the atmosphere?

• Element
• Compound
• Mixture

Tags

NGSS.MS-PS1-1