0
Why must the number of atoms of each element remain the same in a chemical equation?
Wiki User
∙ 13y ago
The Law Of conservation of mass comes into play here. If you start our with 15 carbons and add water in the product you can't have 17 carbons and water. where did the extra come from? Also you cannot loose any atoms because they cannot be destroyed, they have to go somewhere.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
Why number of element remain fixed in a period?
The question cannot be answered because it is based on a false premise: the number of elements does NOT remain fixed.
What particle is involved most in the formation of an isotope?
In isotopes of a particular element, the number of neutrons differ where the number of protons and electrons remain same.
When water evaporates its chemical composition?
The chemical composition remain unchanged.
When a systime has reached chemical equilibrium the concentrations of the reactants and products?
When a system has reached chemical equilibrium, the concentrations of the reactants and product remain constant.
What characteristics of water remains the same no matter what is dissolve in it?
The chemical composition of water remain constant.
What is conserved when one balances a chemical equation?
Mass (Matter) and Energy is conserved during a Chemical equation
Atoms of one element change in to atoms of another element during chemical reactions?
During chemical reactions atoms remain unchanged.
What number cannot be changed in a chemical equation?
You cannot change the subscripts in the molecular identities.For example, H2SO4 must remain H2SO4 and not changed to something like H3SO7.Furthermore, the total mass of the reactants must equal the total mass of the products.
Why number of element remain fixed in a period?
The question cannot be answered because it is based on a false premise: the number of elements does NOT remain fixed.
Is the number of mole remain same if you add distilled water?
Yes, the number of moles will remain the same as long as the chemical does not react with water.
The definition of division property of equality?
I think its a property in which both sides of an equation are equal either by adding, subtracting, multiplication, or division.
What are the atomic weights of two isotopes of the element number?
both the atomic number and the atomic mass remain the same
Why isotopes of the same elements are chemically similar?
because chemical reactions rely on the donation, acceptance and/or sharing of electrons - if the number of electrons remains the same, the chemical behavior tends to remain the same (and isotopes of the same element will all have the same number of electrons and valence shell occupations).
What defines what an element is?
Elements are chemically defined by the number of protons present in the nucleus. The atomic number of an element is merely the number of protons that are in the nucleus. There are various isotopes of the same element, which just means the amount on neutrons has changed, however the protons remain the same.
Why can you multiply or divide both sides of an equation by the same number and still have the equation be true?
It was an equation to start with. That is, both sides were equal. So, if you do the same thing to each side they will still be equal. You can also add or subtract the same number from each side and they will be equal. As long as you treat both sides the same they will remain the alike -- that is, they will remain equal.
If you add a proton neutron and electron to an atom explain why the atom would not be the same element?
BECAUSE ON ADDING ANYTHING (PROTON, NEUTRON OR ELECTRON) THE CHEMICAL PROPERTIES OF THE ATOM DOES NOT REMAIN THE SAME. 1. AS ON ADDING ELECTRON THE ATOM WILL BE IONIZED AND WILL BECOME MORE NEGATIVELY CHARGED AND THUS WILL REACT WITH DIFFERENT ELEMENT IN A DIFFERENT MANNER OR FORM DIFFERENT CHEMICAL FORMULAS. FOR EXAMPLE: C + O2 = CO2 BUT IF WE ADD 2 MORE ELECTRONS TO OXYGEN THE IT WILL FORM CO. 2. THE ATOMIC MASS OF A HYDROGEN ATOM IS 1 BECAUSE IT ONLY CONTAIN 1 PROTON (i.e. NO NEUTRON) BUT IF WE ADD I NEUTRON TO IT ITS ATOMIC MASS WILL BE 2 WHICH IS THE ATOMIC PASS OF A DIFFERENT ELEMENT DEUTRIUM AND THUS THE ELEMENT WILL NOT REMAIN THE SAME.(not sure of the spelling & grammar.) (ii)THE ATOMIC MASS OF URANIUM'S STABLE ISOTOPE IS 238. IF WE ADD A NEUTRON ITS ATOMIC MASS WILL BECOME 239 WHICH IS THE ATOMIC MASS OF POLONIUM AND THUS THE ELEMENT WILL NOT REMAIN SAME. 3. IF WE ADD PROTON TO AN ATOM ITS ATOMIC NUMBER WILL CHANGED AND THUS IT CHEMICAL PROPERTIES WILL ALSO BE CHANGED.
What is an addition property of equality?
The addition property of equality states that if you add the same number to both sides of an equation, then the sides remain even. This means that the equation remains to be true.
