A _________ is a substance that speeds up a chemical reaction without being permanently consumed in the reaction. catalyst.
Dec 24, 2015
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- Slide 1
- Slide 2
- A _________ is a substance that speeds up a chemical reaction without being permanently consumed in the reaction. catalyst
- Slide 3
- List the naturally occurring diatomic molecules. H 2, O 2, N 2, Cl 2, Br 2, I 2, F 2
- Slide 4
- Using collision theory, EXPLAIN why increasing the temperature of a reaction increases the reaction rate? Increasing the temperature also increases the kinetic energy of the reacting molecules. So molecules are moving faster and will collide more often. More collisions = faster reaction rate!
- Slide 5
- _____________ is the speed of the disappearance of a reactant or the rate of the appearance of a product in a chemical reaction. Reaction rate
- Slide 6
- Equations must always be balanced because a certain law of chemistry cannot be violated. What is the name of the law that cannot be violated? Law of Conservation of Matter
- Slide 7
- The arrow between the reactants and products means__________. yields
- Slide 8
- List the four indicators that a chemical reaction occurred. Heat/light Precipitate Gas (bubbles) Color change
- Slide 9
- In a chemical equation, what is indicated by the symbol? Heat is added to the reaction
- Slide 10
- In a chemical equation, what is indicated by the symbol? A precipitate is formed
- Slide 11
- What are the 4 factors that affect the reaction rate? Temperature Concentration Nature of Reactants Catalyst
- Slide 12
- List the reactants in the following equation: CH 4 (g) + 2O 2 (g) CO 2 + 2H 2 O ( l ) CH 4 + 2O 2
- Slide 13
- Using collision theory, EXPLAIN why increasing the concentration of a reactant increases the reaction rate? More molecules are present as the concentration is increased. So more molecules present equals more collisions between reacting molecules. More collisions = faster reaction rate!
- Slide 14
- In a chemical equation, what is indicated by the H 2 SO 4 symbol? That H 2 SO 4 was used as a catalyst is this reaction
- Slide 15
- List the products in the following equation: CH 4 (g) + 2O 2 (g) CO 2 + 2H 2 O ( l ) CO 2 + 2H 2 O
- Slide 16
- How many atoms of O are in 2H 2 O following equation: CH 4 (g) + 2O 2 (g) CO 2 + 2H 2 O ( l ) 2
- Slide 17
- What is does the represent in the following equation: 2H 2 + O 2 2H 2 O A reversible reaction. The reaction can go both ways- reactants yield products and product can yield reactants
- Slide 18
- What type of reaction would the following be classified as? AB + CD AD + CB Double displacement
- Slide 19
- Suppose in the following reaction that 10g of Mg was added to 14g of O 2, how many grams of MgO would be produced? 2Mg (s) + 2O 2 (g) 2MgO (s) 24 g b/c the Law of Conservation of Matter (the amount of matter you start with is the same amount that you end with!)
- Slide 20
- How many atoms of C are in CO 2 following equation: CH 4 (g) + 2O 2 (g) CO 2 + 2H 2 O ( l ) 1
- Slide 21
- How many moles of CH 4 are present following equation: CH 4 (g) + 2O 2 (g) CO 2 + 2H 2 O ( l ) 1
- Slide 22
- What ions are present for H 2 0? H+ and OH-
- Slide 23
- How many molecules of 2O 2 are present following equation: CH 4 (g) + 2O 2 (g) CO 2 + 2H 2 O ( l ) 2
- Slide 24
- Which of the following substances would be a gas that is produced in the following equation: CH 4 (g) + 2O 2 (g) CO 2 + 2H 2 O ( l ) CO 2
- Slide 25
- What type of reaction would the following be classified as? A + B AB Synthesis
- Slide 26
- Which type of reaction has only one REACTANT? Decomposition
- Slide 27
- What type of reaction would the following be classified as? A + BC AC + B Single displacement
- Slide 28
- Which of the following substances would be a liquid in the following equation: CH 4 (g) + 2O 2 (g) CO 2 + 2H 2 O ( l ) 2H 2 O
- Slide 29
- How many molecules of CH 4 are present following equation: CH 4 (g) + 2O 2 (g) CO 2 + 2H 2 O ( l ) 1
- Slide 30
- What ion is ALWAYS present in any acid? H+
- Slide 31
- Which type of reaction has only one PRODUCT being produced? Synthesis
- Slide 32
- What does (aq) represent after a substance? Aqueous substance was dissolved in water
- Slide 33
- Is the following reaction correct? Explain. 2Mg (s) + 2O 2 (g) 2PbO (s) NO! b/c the Law of Conservation of Matter (the same types of atoms must be present on both sides of the equation. Mg cant be changed into Pb!
- Slide 34
- What type of reaction would the following be classified as? AB A + B Decomposition
- Slide 35
- Balance the following equation: potassium + water potassium hydroxide + hydrogen 2K + 2H 2 O 2KOH + H 2
- Slide 36
- Balance the following equation: fluorine + aluminum oxide aluminum fluoride + oxygen 6F 2 + 2Al 2 O 3 4AlF 3 + 3O 2
- Slide 37
- Identify the type of reaction. Finish the word equation & write the balanced equation: Aluminum + hydrochloric acid Single Displacement Aluminum chloride + hydrogen 2Al + 6HCl 2AlCl 3 + 3H 2
- Slide 38
- Identify the type of reaction. Finish the word equation & write the balanced equation: calcium fluoride + water Double Displacement Calcium hydroxide + hydrogen fluoride CaF 2 + 2H 2 O Ca(OH) 2 + 2HF
- Slide 39
- Identify the type of reaction. Finish the word equation & write the balanced equation: potassium oxide Decomposition potassium + oxygen 2K 2 O 4K + O 2
- Slide 40
- Identify the type of reaction. Finish the word equation & write the balanced equation: strontium + chlorine synthesis Strontium chloride Sr + Cl 2 SrCl 2 *Balanced
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