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What is the two principles or laws in balancing chemical reaction?
Wiki User
∙ 10y ago
A balanced chemical equation supports the law of conservation of mass/matter, which states that in a chemical reaction, matter is neither created nor destroyed. This is why a balanced equation will have the exact same numbers of atoms of each element on both sides of the equation.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoConservation of matter. Elements that are on the left side of the equation must be present in equal amounts on the right side of the equation.
Suppose you have: H2SO4 + NaOH -> Na2SO4 + H2O [unbalanced eq.]
On the left side, there are 3 Hydrogen, 5 Oxygen, 1 Sulfur(S), and 1 Sodium(Na); but on the right side there are 2 Hydrogen, 5 Oxygen, 1 Sulfur(S), and 2 Sodium(Na)
You must multiply each substance by an whole number greater than zero, so that each element is the same on both sides.
H2SO4 + 2(NaOH) -> Na2SO4 + 2(H2O)
This balanced equation has: 4 Hydrogen, 6 Oxygen, 1 Sulfur(S), and 2 Sodium(Na) on each side of the equation, so the same elements (and quantity) before the reaction still exist after the reaction. Matter is conserved.
Wiki User
∙ 14y agoThe law of conservation of mass. When you balance it, you are ensuring that the same amount of matter put into the reaction comes out of it.
See links below.
Wiki User
∙ 10y agoprinciple of definite proportions and law of conservation of mass :)
Wiki User
∙ 12y agoThe Law of Conservation of Mass
Wiki User
∙ 13y agodoodie brains
Wiki User
∙ 10y agolaw of conservation of mass
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Laws of chemical conbination?
The laws of chemical combination are fundamental principles that govern the relationships between the quantities of reactants and products in a chemical reaction. The three main laws are the law of conservation of mass, the law of definite proportions, and the law of multiple proportions. The law of conservation of mass states that mass is conserved in a chemical reaction, meaning that the total mass of the reactants is equal to the total mass of the products. The law of definite proportions states that a compound always contains the same proportions of elements by mass. The law of multiple proportions states that when two elements combine to form multiple compounds, the mass ratios of the elements in the compounds are always in whole-number ratios.
What does chemical reaction tell you?
A chemical equation is used in the means of writing out and describing a chemical reaction, such as the reactants and the substance that forms after the reaction (called the product)P.S: it took me a little to find out the question since i had it too. Some teachers decide to give out questions like these in attempt to get people to practice their research skills instead of just relying on a "magic book" for the answer.
Fireworks exploding in the sky and giving off light are an example of an what?
A chemical reaction (combustion of gunpowder); Newton's laws of motion; the varying spectrums of transition metal compounds.
Which of Newtons Laws is sometimes referred to as the Action Reaction law?
The Third Law. for every action there is an equal reaction
How does entropy and the enzyme's work?
The answer lies with proteins. A specific kind of protein called an enzyme lowers the activation energy of chemical reactions. Reactions that would normally take years happen in seconds. Figure 7.1 shows how this effect alters chemical equilibrium. Consider a set of chemicals that have two paths to interact as shown in figure 7.1. One reaction is a side reaction that is undesirable. The other is desirable. The enzyme lowers the activation energy for the desirable reaction making it happen quickly. The undesirable reaction does not have a chance. Also notice that the entropy of the universe is maximized by the undesirable reaction. Thus, from thermodynamic considerations, one might think that the undesirable reaction is always dominant, but because the laws of thermodynamics have no way to deal with time, this observation is seldom true. The enzyme is not violating the second law by forcing the reaction in the preferred direction. Its reaction is also spontaneous in that it also increases the entropy of the universe. By making the desired reaction happen faster, the enzyme does not give the undesirable reaction time to happen.
What law of chemical change is followed in balancing chemical equation?
The laws of conservation of mass and of numbers of each type of atom.
What has the author James Arthur Campbell written?
James Arthur Campbell has written: 'Why do chemical reactions occur?' -- subject(s): Chemical reaction, Conditions and laws of, Conditions and laws of Chemical reaction
What has the author NB Chapman written?
N.B Chapman has written: 'Advances in linear free energy relationship' -- subject(s): Chemical reaction, Conditions and laws of, Conditions and laws of Chemical reaction
Laws of chemical conbination?
The laws of chemical combination are fundamental principles that govern the relationships between the quantities of reactants and products in a chemical reaction. The three main laws are the law of conservation of mass, the law of definite proportions, and the law of multiple proportions. The law of conservation of mass states that mass is conserved in a chemical reaction, meaning that the total mass of the reactants is equal to the total mass of the products. The law of definite proportions states that a compound always contains the same proportions of elements by mass. The law of multiple proportions states that when two elements combine to form multiple compounds, the mass ratios of the elements in the compounds are always in whole-number ratios.
Are laws and ethics fixed principles?
Laws and ethics are not fixed principles. These principles will keep changing from time to time so as to suit a particular situation in the best way possible.
What are A set of laws and principles?
constitution
Under separation of powers principles laws can only made by?
Under the separation of powers, principles laws can only be made by the Congress.
Will all the chemical reactions are obey thermodynamics law?
No one has yet documented a case where a chemical reaction does not obey the laws of thermodynamics - so - yes - all the chemical reactions will obey the laws of thermodynamics. On a philosophic note: since no exceptions to the theories that constitute thermodynamics have been observed, we consider them "laws". Should we ever find an exception, we will have to modify the theories to craft new rules that will then be considered "laws". That's how science works.
Laws and principles governing changes in matter?
laws and principle governing changes of matter
What does chemical reaction tell you?
A chemical equation is used in the means of writing out and describing a chemical reaction, such as the reactants and the substance that forms after the reaction (called the product)P.S: it took me a little to find out the question since i had it too. Some teachers decide to give out questions like these in attempt to get people to practice their research skills instead of just relying on a "magic book" for the answer.
Definition of a chemical reaction?
A combination, or synthesis, reaction, is one in which two simpler substances chemically combine to form a more complex substance. For example, the reaction between hydrogen and oxygen to form water is a combination (synthesis) reaction. 2H2 + O2 --> 2H2O
What is a set of laws and principles on which government is based?
Constitution
