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What is a reactent and products chemical reaction?
A reaction has two components with the reactant as an "ingredient," and the product is the end result. A combustion reaction as the reactants of O2 (oxygen) and CH4 (methane). Their product through the reaction CH4 + 2O2 is 2H2 (water) and C02 (carbon dioxide).
What defines a chemical reaction?
A chemical reaction is a process that involves the breaking and forming of chemical bonds between different molecules to create new substances with altered chemical properties. It is characterized by the rearrangement of atoms and energy changes associated with the reaction.
Is backing a car out of a garage a chemical reaction?
No, backing a car out of a garage is not a chemical reaction. It is a physical action that involves moving a vehicle in a particular direction. Chemical reactions involve the breaking and formation of chemical bonds, which is not the case when backing a car out of a garage.
Is there evidence of a chemical reaction when bubbles form on heated water?
Bubbles forming on heated water are usually due to the process of water vaporization rather than a chemical reaction. When water is heated, the molecules gain energy and move faster, eventually reaching a point where they break free from the liquid surface and form bubbles of water vapor. This phase change is a physical process, not a chemical reaction.
How does the temperature affect the rate of reaction and why?
The temperature affects the rate of a chemical reaction by influencing the kinetic energy of the reactant molecules. As temperature increases, molecules move faster, leading to more frequent and energetic collisions, which enhances the likelihood of overcoming the activation energy barrier necessary for the reaction to occur. Conversely, lower temperatures result in slower molecular motion, reducing the rate of collisions and, consequently, the rate of reaction. This relationship is often described by the Arrhenius equation, which shows that reaction rates generally increase exponentially with temperature.
What is a reactent and products chemical reaction?
A reaction has two components with the reactant as an "ingredient," and the product is the end result. A combustion reaction as the reactants of O2 (oxygen) and CH4 (methane). Their product through the reaction CH4 + 2O2 is 2H2 (water) and C02 (carbon dioxide).
What is required to get the electrons to move from their nucleus?
u need a chemical reaction
Why does hot water increase the rate of reaction?
Hot water generally increases the rate of a chemical reaction because it provides more energy to the reacting molecules, allowing them to move faster and collide more frequently. The higher temperature also increases the kinetic energy of the molecules, leading to a greater number of successful collisions that result in the formation of products.
What defines a chemical reaction?
A chemical reaction is a process that involves the breaking and forming of chemical bonds between different molecules to create new substances with altered chemical properties. It is characterized by the rearrangement of atoms and energy changes associated with the reaction.
How do the degrees of freedom of molecules affect their behavior in a chemical reaction?
The degrees of freedom of molecules determine how they can move and interact during a chemical reaction. Molecules with more degrees of freedom have more ways to move and rotate, which can affect the speed and outcome of the reaction. This can impact factors such as reaction rate, energy transfer, and overall reaction dynamics.
In chemical equilibrium what happens when Q is greater than K?
When Q is greater than K in a chemical reaction, it means the reaction is not at equilibrium. This indicates that there are higher concentrations of products compared to reactants, so the reaction will shift in the reverse direction to decrease Q and reach equilibrium.
Is a kettle boiling a chemical reaction?
When a kettle is boiling you are able to see the chemical reaction, from the stem leaving the kettle.
How do you turn a chemical reaction into a physical reaction?
A good example might be a steam locomotive. It starts with a chemical reaction, where carbon combines with oxygen in the firebox. This heats water to generate steam which drives the cylinders, which turn the wheels and make the locomotive move...a physical reaction. Or a gun, where a chemical reaction, the decomposition of a propellant creates gas which propels a bullet.
Is it true that Enzymes are not consumed during a chemical reaction?
Correct. Enzymes help to speed up chemical reactions. They may speed them up, costing them some energy, but they are never used up.
What are the three processes that occur during chemical weathering?
ice, wind, and water when they start to move things
How do particles of reactants at higher temperatures behave?
Particles move at a faster rate at higher temperatures, than they do at lower temperatures. This is do to the fact that heat is a form of energy. When a particle has more energy is moves faster.
How is heat involved in chemical changes?
Heat increases the speed at which the molecules move, thus increasing the speed of the reaction.
