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Lighted match is brought near a candle wick in order to light the candle which of the 4 factors affecting reaction rate is most important concentration temperature surface area or catalyst?
Temperature is the most important factor affecting the reaction rate in this scenario. By increasing the temperature with the lighted match, the kinetic energy of the particles is increased, leading to more collisions and a faster reaction between the match and the candle wick.
Which os the following represents a chemical reaction?
A chemical reaction occurs when substances undergo a transformation to form new substances with different properties. This can involve the breaking and forming of chemical bonds, resulting in changes in energy and composition. Common indicators of a chemical reaction include color change, gas production, formation of a precipitate, or temperature change. To identify a specific example, look for a scenario where reactants interact to yield products that are chemically distinct from the original materials.
What happens to the number of water particles on the left hand side?
The number of water particles on the left-hand side will depend on the context of the situation. If referring to a chemical reaction, the number may change based on the reactants and products involved, possibly increasing or decreasing during the reaction. In a physical scenario, such as evaporation or condensation, the number of water particles can also fluctuate based on conditions like temperature and pressure. Overall, without specific details, it's challenging to determine the exact change.
Is a puddle of dirt a chemical change?
No, a puddle of dirt is not a chemical change; it is primarily a physical change. When dirt becomes wet, its physical state changes as it absorbs water, but the chemical composition of the dirt remains the same. Chemical changes involve the formation of new substances, which does not occur in this scenario.
What is the plural of scenario?
The plural of scenario is scenarios.
When it say change it of temperature do you have to subtract?
When adjusting for temperature changes in calculations or experiments, whether to subtract or add depends on the context. If you're comparing two temperatures and you need to find the difference, you subtract the lower temperature from the higher one. However, if you're adjusting a value based on a temperature change, the operation will depend on whether the temperature is increasing or decreasing. Always consider the specific scenario to determine the correct operation.
Lighted match is brought near a candle wick in order to light the candle which of the 4 factors affecting reaction rate is most important concentration temperature surface area or catalyst?
Temperature is the most important factor affecting the reaction rate in this scenario. By increasing the temperature with the lighted match, the kinetic energy of the particles is increased, leading to more collisions and a faster reaction between the match and the candle wick.
When a solution is heated and a gas is formed is that a chemical change?
If there is no chemical reaction occurring in the solution as a result of heating then this scenario constitutes a phase change.
Present scenario of e-commerce in India?
in India it is increasing very rapidly and it help everybody in there day to day life.
What isCurrent scenario of windmill energy?
windmill energy has a wide scope and nowadays it's use is been continously increasing in many countries
How much energy is required to raise the temperature of kg of lead from 15 c to 15 c?
1935
Which os the following represents a chemical reaction?
A chemical reaction occurs when substances undergo a transformation to form new substances with different properties. This can involve the breaking and forming of chemical bonds, resulting in changes in energy and composition. Common indicators of a chemical reaction include color change, gas production, formation of a precipitate, or temperature change. To identify a specific example, look for a scenario where reactants interact to yield products that are chemically distinct from the original materials.
How can one determine the direction of acceleration in a given scenario?
To determine the direction of acceleration in a given scenario, you can look at the change in velocity of an object over time. If the velocity is increasing, the acceleration is in the same direction as the velocity. If the velocity is decreasing, the acceleration is in the opposite direction of the velocity.
Is a what-if analysis tool that allows you to record and save different sets of what-if assumptions used to forecast the outcome of a worksheet model?
The Scenario Manager.The Scenario Manager.The Scenario Manager.The Scenario Manager.The Scenario Manager.The Scenario Manager.The Scenario Manager.The Scenario Manager.The Scenario Manager.The Scenario Manager.The Scenario Manager.
What happens to the number of water particles on the left hand side?
The number of water particles on the left-hand side will depend on the context of the situation. If referring to a chemical reaction, the number may change based on the reactants and products involved, possibly increasing or decreasing during the reaction. In a physical scenario, such as evaporation or condensation, the number of water particles can also fluctuate based on conditions like temperature and pressure. Overall, without specific details, it's challenging to determine the exact change.
What are indicators of a chemical change when 2 substances are mixed together?
Some indicators include:Change in TemperatureChange in ColorNoticeable Odor (after reaction has begun)Formation of a PrecipitateFormation of BubblesWhen two or more reactants are mixed and a change in temperature, color, etc. is noticed, a chemical reaction is probably occurring. These are not definite indicators; a chemical reaction may not be occurring. A change in color is not always a chemical change. If one were to change the color of a substance in a non-chemical reaction scenario, such as painting a car, the change is physical and not chemical. This is because the composition of the car has not changed. Proceed with caution.
Is a puddle of dirt a chemical change?
No, a puddle of dirt is not a chemical change; it is primarily a physical change. When dirt becomes wet, its physical state changes as it absorbs water, but the chemical composition of the dirt remains the same. Chemical changes involve the formation of new substances, which does not occur in this scenario.
