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Factors which can increase the rate of a chemical reaction:
- temperature
- pressure
- concentration of reactants
- stirring
- if solids are involved the dimension of particles is important
- the type of reaction
- the order of reaction
- presence of catalysts
- influence of external factors
etc.
What else can I help you with?
Is it a chemical reaction when one substance is added to another substance and it becomes warmer?
Yes, if adding one substance to another causes heat to be released or the temperature to increase, it is likely an exothermic reaction, which is a type of chemical reaction. The increase in temperature indicates that a chemical change is taking place as bonds are being broken and formed.
What factors determine whether a chemical reaction will proceed in an energetically favorable or unfavorable direction?
The factors that determine whether a chemical reaction will proceed in an energetically favorable or unfavorable direction include the difference in energy between the reactants and products (enthalpy change), as well as the entropy change and temperature of the system. If the overall change in energy is negative (exothermic) and the increase in disorder (entropy) is positive, the reaction is likely to proceed in a favorable direction.
How do you know that a chemical reaction is taking place?
You can tell a chemical reaction is taking place if there is a change in color, temperature, formation of gas bubbles, or the production of a precipitate. Additionally, if the reactants are transformed into new substances with different properties, a chemical reaction has likely occurred.
Chalk reacts with hydrochloric acid when mixed Will pounding the chalk into powder increase the rate of reaction?
Yes, pounding chalk into powder will increase the rate of reaction with hydrochloric acid. This is because crushing the chalk into a powder increases its surface area, allowing more of it to come into contact with the hydrochloric acid and react.
Do you think a chemical reaction has taken place Can you explain your reasoning behind your conclusion?
Yes, a chemical reaction has likely taken place if there is a change in the chemical composition of the substances involved. This can be observed through the formation of new substances, changes in color, temperature, or the release of gas. These are all indicators that a chemical reaction has occurred.
What chemical change is most likely to involve bubbling or an odor?
This is a chemical reaction.
Is it a chemical reaction when one substance is added to another substance and it becomes warmer?
Yes, if adding one substance to another causes heat to be released or the temperature to increase, it is likely an exothermic reaction, which is a type of chemical reaction. The increase in temperature indicates that a chemical change is taking place as bonds are being broken and formed.
What will most likely happened if an appropriate enzyme is added to a chemical reaction?
The enzyme will act as a catalyst, a compound that lowers that activation energy of the reaction, and therefore, increase the rate of the reaction.
What factors determine whether a chemical reaction will proceed in an energetically favorable or unfavorable direction?
The factors that determine whether a chemical reaction will proceed in an energetically favorable or unfavorable direction include the difference in energy between the reactants and products (enthalpy change), as well as the entropy change and temperature of the system. If the overall change in energy is negative (exothermic) and the increase in disorder (entropy) is positive, the reaction is likely to proceed in a favorable direction.
Select all the conditions below that are most likely to result in a spontaneous chemical reaction or process?
Exothermic reaction Decrease in entropy Increase in entropy Positive change in free energy Negative change in free energy
How do you know that a chemical reaction is taking place?
You can tell a chemical reaction is taking place if there is a change in color, temperature, formation of gas bubbles, or the production of a precipitate. Additionally, if the reactants are transformed into new substances with different properties, a chemical reaction has likely occurred.
What is most likely sign that a chemical change has happend?
The most likely signs of a chemical change include the production of gas (bubbles or odor), color change, temperature change (heat or light released), and the formation of a precipitate (a solid that forms from a solution). These indicators suggest that new substances have been created as a result of the chemical reaction.
Chalk reacts with hydrochloric acid when mixed Will pounding the chalk into powder increase the rate of reaction?
Yes, pounding chalk into powder will increase the rate of reaction with hydrochloric acid. This is because crushing the chalk into a powder increases its surface area, allowing more of it to come into contact with the hydrochloric acid and react.
How does the presence of enzymes affect the change in free energy during a chemical reaction?
Enzymes lower the activation energy required for a chemical reaction to occur, which in turn decreases the overall change in free energy. This allows the reaction to proceed more easily and efficiently, making it more likely to happen.
Do you think a chemical reaction has taken place Can you explain your reasoning behind your conclusion?
Yes, a chemical reaction has likely taken place if there is a change in the chemical composition of the substances involved. This can be observed through the formation of new substances, changes in color, temperature, or the release of gas. These are all indicators that a chemical reaction has occurred.
Which change in climate would likely cause the greatest increase in chemical weathering of local bedrock?
An increase in temperature and precipitation would likely cause the greatest increase in chemical weathering of local bedrock. Higher temperatures can accelerate chemical reactions, while increased precipitation can provide more water to facilitate the weathering process.
If A chemical reaction occurs and the substances increase in temperature Does this break the law of conservation of energy?
No, an increase in temperature in a chemical reaction does not break the law of conservation of energy. The energy is simply being converted from one form to another – in this case, from chemical potential energy to thermal energy. The total energy before and after the reaction remains the same.
