Elements, Compounds, & Mixtures

A mixture that appears to be evenly mixed throughout:

• an atom
• a compound
• a homogeneous mixture
• a heterogeneous mixture

Which of the following is a way in which elements and compounds are similar?

• Elements and compounds are pure substances.
• Elements and compounds are both made up of different kinds of atoms.
• Elements and compounds can both be broken down by physical means.
• Elements and compounds are listed on the periodic table.

Two or more substances in the same place but NOT chemically combined or in a specific ratio is called —

• a compound 
• a pure substance
• an element
• a mixture

What does this illustrate

• Elements

• Compunds

• Mixture of Elements and Compunds

• Mixture of Compounds

Tags

NGSS.MS-PS1-1

What does this pic illustrate?

• Element

• Mixture of Compunds

• Mixture of elemets

• Compounds

Tags

NGSS.MS-PS1-1

Which of the following is the strongest base?

• oven cleaner - 13.5

• lemon juice - 2.5

• soap - 10

• blood - 7.4

Tags

NGSS.MS-PS1-2

Which of these solutions is an acid?

• Dish Soap: pH of 12
• Tomato Soup: pH of 4
• Baking Soda: pH of 9
• Drain Cleaner: pH of 14

Tags

NGSS.MS-PS1-2

NaHCO₃ is an example of —

• an abbreviation
• a compound
• a mixture
• an element

Tags

NGSS.MS-PS1-1

Which of the following is an example of a heterogeneous mixture?

• Salt water
• Sweet tea
• Bronze
• Oil & vinegar dressing

Which of the following is not a compound?

• HCl
• Cl
• NaCl
• CO2

Tags

NGSS.MS-PS1-1