Ms Ps1 5

How many Al atoms are in this compound?         4Al₂O₃

• 2

• 8

• 6

• 4

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NGSS.MS-PS1-1

10g of white powder reacts with 10g of clear liquid. The reaction bubbles and changes color producing a black liquid that has a mass of 13g. What can be concluded?

• 5g of gas was produced

• This experiment violates the conservation of mass

• 7g of gas was produced

• The excess reactant is destroyed & disappears during the reaction

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

A molecule is________

• a glob of gelatinous goo

• smaller than an atom

• filled with raisons

• more than one atom bonded together

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NGSS.MS-PS1-1

Chemical Reaction

• a substance formed as a result of a chemical reaction

• a change in matter that produces one or more new substances

• the process in which substances undergo chemical changes that result in the formation of new substances

• a substance that enters into a chemical reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Chemical Equation

• A representation of a chemical reaction

• the starting materials in a chemical reaction

• the new substances that are formed in a chemical reaction

• tells how many atoms, molecules, or formula units take part in a reaction

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NGSS.MS-PS1-5

The chemical formula of glucose is C₆H₁₂O_6. Is glucose an element, compound, or mixture?

• element

• compound

• mixture

Tags

NGSS.MS-PS1-1

Air is an example of a

• solid

• liquid

• gas

Tags

NGSS.MS-PS1-4

How many oxygen atoms are in this chemical formula?

• 6 oxygen atoms

• 2 oxygen atoms

• 3 oxygen atoms

• 4 oxygen atoms

Tags

NGSS.MS-PS1-1

Law of conservation of mass states that 

• matter is created

• matter is destroyed

• matter is neither created nor destroyed

• matter does not change

Tags

NGSS.MS-PS1-5

How many nitrogen atoms does NH₃ have?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1