0
Add your answer:
Earn +20 pts
Which symbol denotes the temperature before a reaction happens?
Ti
How can you prove that temperature increases during chemical reaction?
Measuring it before, after and during the reaction with a thermometer.
What is the measure of how fast a reaction occurs?
The measure of how fast a reaction occurs is called the reaction rate. It is typically determined by how quickly the reactants are consumed or the products are formed over a specific period of time. The reaction rate can be influenced by factors such as temperature, concentration, and catalysts.
Why it is useful to measure temperature?
One reason is because certain reactions require a precise temperature to occur. If the temperature is not achieved and maintained precisely then the reaction will stop.
Science fair project - how does baking soda affect the temperature of water?
When baking soda is added to water, it undergoes a chemical reaction that absorbs heat from the water and causes the temperature to decrease. This reaction is endothermic, meaning it requires energy in the form of heat to occur, resulting in a cooling effect on the water. You can measure the temperature change before and after adding baking soda to observe its impact.
What is a condition that is observed and measured in an experiment?
One example of a condition that is observed and measured in an experiment is the temperature of a solution in a chemical reaction. Researchers can measure the temperature at different time points to investigate how it changes during the reaction, providing insights into the reaction kinetics and thermodynamics.
Did the temperature exist before you tried to measure it?
Yes. It existed before human beings did, or before the solar system.
How can exothermic reaction be identified?
Exothermic reactions can be identified by observing an increase in temperature during the reaction. Typically, you may feel warmth being released or notice the surroundings warming up. Additionally, you can use a thermometer to measure the temperature change throughout the reaction to confirm it is exothermic.
How would you know if a reaction was endothermic or exothermic?
You can determine if a reaction is endothermic or exothermic by observing whether heat is absorbed or released during the reaction. If heat is absorbed, the reaction is endothermic. If heat is released, the reaction is exothermic. You can also measure the temperature change of the surroundings to confirm the type of reaction.
Do you stir the water before taking the temperature?
No, it is not necessary to stir the water before taking the temperature. Just make sure the thermometer is placed in the water and give it a few seconds to accurately measure the temperature.
Why does the ambient temperature need to be measured before and after the experiment?
You measure the ambient temperature before the experiment in case the experiment is sensitive to ambient temperature. You want to record all of the environmental factors that might affect the experiment before starting it. You measure the ambient temperature after the experiment for the same reason, and also in case the experiment affected the ambient temperature. Depending on the experiment, environmental factors may need to be considered when analyzing the results.
How is the rate of reaction affected when the temperature increases?
As the temperature increases, the reaction time decreases.
