REVIEW MATTER and ENERGY

How many Mg are present in 2Mg + O₂ = 2MgO

• 4

• 0

• 1

• 2

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Which of the following is the oxygen molecule?

2Mg + O₂ = 2MgO

• 2Mg

• O₂

• 2MgO

Tags

NGSS.MS-PS1-1

How many atoms are in Glucose?

Tags

NGSS.MS-PS1-1

How many atoms are in Methane?

Tags

NGSS.MS-PS1-1

How many atoms are in Ethanol?

Tags

NGSS.MS-PS1-1

How many ELEMENTS are in Ethanol?

Tags

NGSS.MS-PS1-1

Which of the following is most affected by temperature

• Cup 1: coarse salt, cold water, no stirring

• Cup 2: Crushed salt, hot water stirring slowly

• Cup 3 : table salt, room temp water, no stirring

• Cup 4: Crushed salt, cold water stirred quickly

• Cup 5: table salt, warm water, stirred slowly

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following is most affected by agitation

• Cup 1: coarse salt, cold water, no stirring

• Cup 2: Crushed salt, hot water stirring slowly

• Cup 3 : table salt, room temp water, no stirring

• Cup 4: Crushed salt, cold water stirred quickly

• Cup 5: table salt, warm water, stirred slowly

Which of the following is most affected by surface area

• Cup 1: coarse salt, cold water, no stirring

• Cup 2: Crushed salt, hot water stirring slowly

• Cup 3 : table salt, room temp water, no stirring

• Cup 4: Crushed salt, cold water stirred quickly

• Cup 5: table salt, warm water, stirred slowly

Which of the following demonstrates all three slowing factors

• Cup 1: coarse salt, cold water, no stirring

• Cup 2: Crushed salt, hot water stirring slowly

• Cup 3 : table salt, room temp water, no stirring

• Cup 4: Crushed salt, cold water stirred quickly

• Cup 5: table salt, warm water, stirred slowly