Endothermic vs Exothermic Reactions Explained

The video tutorial explains how energy changes occur in chemical reactions, focusing on two types: endothermic and exothermic. Endothermic reactions absorb energy, exemplified by ice melting, while exothermic reactions release energy, as seen in a match burning. The tutorial concludes with practice problems for students.

In how many ways can energy change during a reaction?

• One way

• Four ways

• Two ways

• Three ways

Tags

NGSS.MS-PS3-4

What type of reaction absorbs energy?

• Neutralization

• Exothermic

• Endothermic

• Combustion

Tags

NGSS.MS-PS1-4

Which of the following is an example of an endothermic reaction?

• Rusting of iron

• Condensation of water

• Melting an ice cube

• Burning a match

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What type of reaction releases energy?

• Exothermic

• Electrolysis

• Endothermic

• Photosynthesis

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which of the following is an example of an exothermic reaction?

• Burning a match

• Dissolving salt in water

• Boiling water

• Melting ice

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-5