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Physical Science Quarter 1 – Module 8. Collision Theory and Chemical Reaction Rate.

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1.Define collision theory and describe. how it affects the chemical reaction;.

Chemical reactions are common in. our daily lives: from cooking, eating,.

Reactants - the substances or particles. that enter and is changed in the chemical reaction.

What is a Chemical Reaction?.

There are two factors that determine whether a reaction will occur.

Substances or particles of. Collision Theory. reactants must physically.

Substance or particles must come into contact or collide in the correct orientation.

FG14_012. Substances or particles of reactants must physically collide with enough energy.

FG14_016. Substance or particles must come into contact or collide in the correct orientation ( facing the correct way)..

Reactants Energy Changes in Reaction 1 —— Activated complex Activation energy Energy of reactants Energy released by reaction Product Energy of products.

The rate of reaction is the speed at which a reaction occurs or how fast it occurs..

1. Activation Energy. 2 . Temperature. Factors that Affect Rate of Reaction.

Screen Clipping. Screen Clipping. FACTORS AFFECTING THE RATE OF REACTION:.

Question:. Can you think of another example to show how activation energy works?.

Screen Clipping. FACTORS AFFECTING THE RATE OF REACTION:.

Screen Clipping.

Screen Clipping. S U O I S 1 1 00 910 : U O U O 51 H S U O I S I I O : O U O O M O I 0.

Screen Clipping. low SurfaceArea High SudaceArea 0:AcidPantle 0:MagnesiumAtom.

To understand this further, try to analyze the picture and answer the questions EAow: Low Surface Area Figure 1 High Surface Area Figure 2 How many reactant particles can be seen on Figure I? Which do you think is the solid particle on Figure I? What have you observed to the reactant particles in Figure 2? In which container will the solid particle dissolve faster and why?.

Now is the time for you to explore your knowledge about collision theory and the factors affecting the rate of chemical reaction.

Suppose you held a lighted match to a solid piece of wood and another match to a pile of wood shavings. Which form of wood would catch fire more easily and why? ________________.

Create your own 5-minute experiment video by choosing one of the factors discussed in this lesson..

Rubric for Grading The video will be scored from I to 5, with 5 Eång the highest. The criteria for grading are as follows: Criteria Visuals Audio Content Timeliness Expectations The video is clear and engagng. Camera shots tell the story' visually and no lighting problems. Loudness and dialogue are balanced. Spoken words show confidence and are connncmg. Deliver of content is precise and complete. Emphasis given should be based on the discussion. The video should consume the required 5-minutes. For every less or added minute/ s, points uhll deducted..