Week 26 (Changes in Matter)

A change in matter which doesn't alter the chemical properties of the matter.

• Chemical change
• Emotional change
• Spiritual change
• Physical change

Tags

NGSS.MS-PS1-4

The changes that happen in substances as the atoms rearrange themselves.

• Emotional reaction
• Biological reaction
• Physical reaction
• Chemical reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Organize these options into the right categories

Groups:

(a) Chemical Change

,

(b) Physical Change

• 
• 
• 
• 
• 
• 
• 
• 

Tags

NGSS.MS-LS1-6

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which definition best describes what a precipitant is?

• A type of rock
• A type of weather formation.

• When an individual is engaged in an activity and volunteering often.

• A solid that is formed during a chemical reaction between liquids.

The result of outcome of a chemical reaction.

• reactant
• ingredient
• catalyst
• yield

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

According to this chemical reaction, what is the yield?

(TWO answers)

• Oxygen (O2)

• Iron (Fe)

• Water (H2O)

• Rust (Fe2O3H2O)

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A set of symbols that describes the number of atoms of each element in a molecule.

• chemical equation

• mathematical equation
• molecular notation
• chemical formula

Tags

NGSS.MS-PS1-1

How many elements are in C₆H₁₂O_6?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many atoms of carbon (C) are in C₆H₁₂O_6?

• 3

• 6

• 12

• 24

Tags

NGSS.MS-PS1-1

Which is the correct formula for:

3 Hydrogen (H)

1 Sulfur (S)

4 Oxygen (O)

• H₃SO₄

• HSO₄

• H₄S₃O

• H₂O

Tags

NGSS.MS-PS1-1