Revision year 8 reactions

What letter represents the energy of the products?

• A
• B
• C
• D

Tags

NGSS.HS-PS1-4

What type of reaction is this?

• Endothermic
• Exothermic

Tags

NGSS.HS-PS1-4

Which of the following phase changes would this type of energy diagram refer to?

• melting
• evaporation
• sublimation
• condensation

Tags

NGSS.HS-PS3-4

What letter represents the activation energy?

• A
• B
• C
• D

Tags

NGSS.HS-PS1-4

Is this reaction endothermic or exothermic?

• endothermic 
• exothermic

Tags

NGSS.HS-PS1-4

• Poison/Toxic
• Bio Hazard
• Radioactive
• Corrosive

Tags

NGSS.MS-PS1-2

What safety symbol is this?

• Flammable 
• Oxidizing Agent
• No Open Flame
• Explosion

Tags

NGSS.MS-PS1-2

_{What is the hazard shown in this hazard sign?}

• Fire
• Goku
• Flammable
• Inflammable

_{What is the hazard shown in this hazard sign?}

• Explosive
• Corrosive
• Irritant
• High level Irritant

A pictogram of a _________ is used to mark flammable materials.

• Exclamation Point
• Bomb
• Flame
• Skull and Crossbones