Exo Endo and Enthalpy

What type of reaction is the following?
6 CO₂ +6 H₂O --> C₆H₁₂O₆ + 6 O₂ + 114 kcal

• exothermic
• endothermic

Tags

NGSS.HS-PS1-4

ΔH value in an endothermic reaction is a ______ number.

• Positive
• Negative

Tags

NGSS.HS-PS1-4

H₂ + Cl₂ --> 2 HCl + 1845 kJ
Is this reaction endothermic or exothermic?

• Endothermic 
• Exothermic

Tags

NGSS.HS-PS1-4

During an endothermic reaction in a beaker if we are part of the surroundings and touched the beaker, it would feel _______. 

• Warm
• Cold

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

What is the ΔH of this reaction?

• 40 kJ
• 20 kJ
• 80 kJ
• 60 kJ

Tags

NGSS.HS-PS1-4

A reaction occurs in a test tube you are holding---it starts to feel cold to you.

• endo

• exo

Tags

NGSS.HS-PS1-4

A reaction that has a negative ΔH value.

• endo

• exo

Tags

NGSS.HS-PS1-4

When the reaction occurs, the surrounding temperature goes up.

• endo

• exo

Tags

NGSS.HS-PS1-4

A reaction with products that have less energy than the reactants.

• endo

• exo

Tags

NGSS.HS-PS1-4

“Heat” is written as a reactant in a chemical equation.

• endo

• exo