6th Grade CBA Review

Which of the following is not a compound?

• HCl
• Cl
• NaCl
• CO2

Tags

NGSS.MS-PS1-1

Which of the following represents an element?

• H₂O
• H₂
• NaCl
• CaCO₃

Which of the following could be a symbol on the periodic table of elements?

• JZ

• jz

• Jz

• JZa

What is made up two or more elements that are chemically combined?

• Element
• Mixture
• Compound
• Solids

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

How many elements are represented in the compound?
Na₂CO₃

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

Which of these grouping of elements could have the characteristic of brittle?

• Metal
• Nonmetal

Some characteristics of a metal are that it is malleable and ductile.

• TRUE
• FALSE

´Elizabeth was examining elements and their physical properties. She described an element is her science journal as having no shine, an insulator, and  very brittle. What would this element be a metal, nonmetal, or metalloid?

• metal 
• nonmetal 
• metalloid

Elements and Compounds are pure substances

• True

• False