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Is you start with 5 molecules of O in the reaction 2Mg O2 -----2MgO how much Mg will you need?
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Dick
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∙ 10y ago
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How much energy is needed to start nuclear fission reaction?
Incomplete question
Is more energy required for a chemical reaction in the absence of an enzyme?
Without an enzyme, the activation energy needed to start a reaction is much greater. An enzyme is a catalyst, which decreases the amount of activation energy needed to start a reaction. By doing so, it decreases the amount of time the chemical reaction takes place.
If you used 10mL of an inorganic catalysts in a reaction how much would be left over after the reaction was done?
A catalyst by definition is not consumed in a reaction. Therefore, the mass remaining after a reaction will be equal to the mass before the reaction. Note that in certain reactions, such as free radical halogenation, the catalyst may be lost by certain side reactions, however.
What H2O(l) plus heat H2O(g) exthermic or endothermic?
It is an exothermic reaction. There are multiple ways to think about this. The reactants are in the gas phase and thus have a lot of energy within the molecules. When they react to produce a liquid, which has much less energy in its molecules. The energy must be released to the environment to lower the energy of the bonds.
Why is it necessary to balance chemical eqation?
The balanced form of the chemical reaction reveals what is called the stoichiometry of the reaction. The stoichiometry tells you about the relationship between how many molecules of products will be produced for each molecule of reactant. Why is that useful? Let's use the following made up reaction: A + 2B --> C That means that two molecules of B are necessary to combine with one molecule of A to make one molecule of C. So if I want to make 100 molecules of C, I'll need to start with 100 molecules of A and 200 molecules of C. I could also think about it the other way: If I have 50 molecules of A and 100 molecules of B, how much C can I make? Now I can make 50 molecules of C, right? There are a number of other ways to use stoichiometry as well. Another aspect is that mass is always preserved. What that means is that atoms can't just disappear! If an atom goes into a reaction as a reactant, it will come back out as a product. Every time. The balanced reaction is written so that everything that goes in comes out.
Why third order reaction usually not is not possible?
Third order reactions imply reaction between three molecules, which implies collision between three molecules. From a probability standpoint this is much less likely than, say, a second-order reaction, where only two molecules must come together.
What factor explains why heating speeds up the rate of reaction?
When you heat any substance the molecules within the substance start to move more. This movement is actually the electrons jumping to higher orbitals, and the bonds between atoms vibrating. When this occurs the molecules move about much more rapidly increase the rate and chance that they will interact, thus increasing the reaction speed.
How does one determine how much of a molecule is produced in a reaction?
The coefficients and molar masses are used to calculate amounts of molecules.
How doe one determine how much of a molecule is produced in a reaction?
The coefficients and molar masses are used to calculate amounts of molecules.
How much energy is needed to start nuclear fission reaction?
Incomplete question
Does higher temperature speed up a chemical reaction?
yes, it's true because increase in temperature increases the activity of atoms and molecules and thus, they begin to move and react fast. One common example of this is that while cooking until we supply heat, no change occurs since then the atoms and molecules are not very much active but as soon as we start heating, the reaction occurs and your food is cooked.
How does an enzyme speed up its reaction?
Enzymes speed up a reaction by lowering the activation energy. This is the amount of energy required to start the reaction. By lowering the activation energy, the reaction can proceed much more quickly.
Is more energy required for a chemical reaction in the absence of an enzyme?
Without an enzyme, the activation energy needed to start a reaction is much greater. An enzyme is a catalyst, which decreases the amount of activation energy needed to start a reaction. By doing so, it decreases the amount of time the chemical reaction takes place.
How does heat affect the enzymes in a chemical reaction?
At excessive temperatures, enzymes usually denature or break down into other molecules, thus failing to preform their specific function.Other than that, heat does not affect enzymes much but it does increase the speed of the reaction.
If you used 10mL of an inorganic catalysts in a reaction how much would be left over after the reaction was done?
A catalyst by definition is not consumed in a reaction. Therefore, the mass remaining after a reaction will be equal to the mass before the reaction. Note that in certain reactions, such as free radical halogenation, the catalyst may be lost by certain side reactions, however.
What happens to the molecules when temperature increase?
The get much much slower almost when they are about to stop, then they rape each others brains out, then they get high, and then they start moving much much faster again. Hope this helps
What does enzyme does to the chemical in the body?
It depends on what enzyme and what chemical you're talking about.In general, enzymes catalyze a certain reaction for a certain molecule or class of molecules. They do pretty much bupkis to any molecules outside that class.
