Describe 3 ways that you could change the rate of the reaction based on principles that effect rates of reactions.
Answers
Three ways to change the rate of a reaction are by increasing the concentration of reactants, changing the temperature, and adding a catalyst.
Three ways to change the rate of a reaction:
- Increasing the concentration of reactants: This increases the collision frequency between particles, leading to a higher reaction rate. For example, in the reaction between hydrogen and iodine to form hydrogen iodide, increasing the concentration of hydrogen and iodine will speed up the reaction.
- Changing the temperature: Higher temperatures increase the kinetic energy of particles, making them move faster and collide more frequently. This results in a faster reaction rate. Using an example, raising the temperature of the reaction between magnesium and hydrochloric acid will speed up the rate of reaction.
- Adding a catalyst: Catalysts are substances that speed up reactions by providing an alternative reaction pathway with lower activation energy. For instance, adding an enzyme catalyst like amylase to the reaction between starch and iodine will increase the reaction rate.
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The three main ways to change the rate of reaction based on principles that affect rates of reactions are concentration, temperature, and catalysts .let us describe them one by one further.
Three ways to change the rate of a chemical reaction are:
- Concentration Change: Increasing the concentration of reactants usually speeds up the reaction. This is due to more frequent collisions between particles, increasing the likelihood of successful collisions leading to product formation.
- Temperature Change: Raising the temperature accelerates reactions by providing more energy to reactant particles, increasing their kinetic energy, and promoting successful collisions.
- Catalysts: Adding a catalyst lowers the activation energy required for the reaction, making it easier for reactants to transform into products. Catalysts provide an alternate reaction pathway, allowing reactions to occur at lower energy levels and faster rates.
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Related Questions
What is an endothermic reaction?
Which statement best explains the change that occurs when gas particles move more slowly
Consider the following reaction: SO2Cl2(g)⇌SO2(g)+Cl2(g) A reaction mixture is made containing an initial [SO2Cl2] of 2.2×10−2M . At equilibrium, [Cl2]= 1.3×10−2M . Calculate the value of the equilibrium constant (Kc).
Can the absolute energy states of the reactants (E1) and products (E2) be measured in a chemical reaction?
Answers
We can measure trace gas pollutants in the atmosphere by using machines or equipments that analysis quantitatively. Examples of these are cyclones, electrostatic precipitator, air bags, venture, absorbers, distillers and many more. They manipulate the properties of these gases in order to extract the pollutants from the clean gas.
(2) CH3CHCH2 and CH3CH2CH3
(3) CH3CHO and CH3COCH3
(4) CH3CH2OH and CH3OCH3
Answers
Answer is (4) - CH₃CH₂OH and CH₃OCH₃.
Both CH₃CH₂OH and CH₃OCH₃ have same molecular formula as C₂H₆O. But CH₃CH₂OH is an alcohol and CH₃OCH₃ is an ether.
Although two compounds have a same molecular formula, the atomic arrangement of those compounds differs from each other.
Hence, CH₃CH₂OH and CH₃OCH₃ are isomers of the formula C₂H₆O.
Due to the different arrangement of atoms, both compounds have different chemical and physical properties.
MgO + CO2
Answers
Mg O + C O2 → Mg C O3
The product is Magnesium Carbonate.
Answer : The product formed in the combination reaction is, magnesium carbonate,
Explanation :
Combination reaction : It is a chemical reaction in which multiple substances or reactants combine to form a single product.
The balanced chemical reaction will be,
This reaction is a combination reaction in which the magnesium oxide react with the carbon dioxide to give magnesium carbonate as a product.
Hence, the product formed in the combination reaction is, magnesium carbonate,
Write the chemical formula of the compound produced.
Answers
Answer:
0.64 g of S
Solution:
The balance chemical equation is as follow,
2 Cu + S ----> Cu₂S
According to equation,
127 g (2 mole) Cu produces = 159 g (1 mole) of Cu₂S
So,
2.54 g Cu will produce = X g of Cu₂S
Solving for X,
X = (2.54 g * 159 g) / 127 g
X = 3.18 g of Cu₂S
Now, it is confirmed that the reaction is 100% ideal. Therefore,
As,
127 g (2 mole) Cu required = 32 g (1 mole) of S
So,
2.54 g Cu will require = X g of S
Solving for X,
X = (2.54 g * 32 g) / 127 g
X = 0.64 g of S
Answer : The total mass of sulfur consumed will be, 0.64 grams and the chemical formula of the compound produced is, copper oxide.
Solution :
According to the law of conservation of mass, the total mass of reactant should be equal to the total mass of product.
The balanced chemical reaction will be,
In this reaction, copper and sulfur are the reactants and copper sulfide is the product.
Let the mass of sulfur be 'x' gram
According to the law of conservation of mass,
Therefore, the total mass of sulfur consumed will be, 0.64 grams and the chemical formula of the compound produced is, copper oxide.
4
6
Cannot be determined
Answers
Carbon can share a maximum of four of its valence electrons when bonding to other atoms. This is the reason why organic molecules can be so large because of this bonding. Suppose you have a compound of CCl4. You know that chlorine can only share 1 electron because 7 of its electrons are filled. Also, in carbon, it can only share 4 electrons because 4 of it are already filled. That is why carbon needs four chlorine to form CCl4.
B: Respiration
C: Photosynthesis
D: Homostasis
Answers
Answer:
C. photosynthesis
Explanation: