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Yes, the atoms on either side of the arrow have to be the same. Sometimes to achieve this you must balance the equation with the amount of atoms.
2Cu(s)+1/2O2(g)--->2CuO(s)
Where the numbers in front of the atoms tell you how many there are.
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How many total molecules are there in 3be2br?
The total number of atoms of the reactants should be equal to the total number of atoms of the products. The total number of molecules of the reactants should be equal to the total numbers of molecules of the products
What happens to the reactants in a chemical reaction?
Put casually, they react with each other to form products. e.g. Reactants A & B form products C & D A + B = C + D
A equation is balanced when?
Same number of each kind of atoms appears in the reactants and in the products.
How many atoms of hydrogen appear on each side of the equation?
The number of atoms in the reactants should equal the number of atoms in the products because the weight should be equal according to the Law of Conservation of Mass.
In a chemical reaction the number of atoms of reactants and products must?
I know that this probably isn't the answer that you were looking for but its a start the answer to this question is one of four different answers choose the one that you think is right. A) The same as the number of atoms in the reactants B) Less than the number of atoms in the reactants C) Greater than the number of atoms in the reactants D) The same as the number of molecules in the reactants
How are reactant atoms and molecules different to their products atoms and molecules?
Well the reactants are what you start off with and the products are what you end up with. So the products are the reactants combined.
Does the number of iron atoms in the reactants equal the number of iron atoms in the products?
no
What occurs to the atoms of reactants in a chemical reaction?
they rearrange to form products
How many atoms of hydrogen are present in the present in the reactants and in the products?
2
What happends to the atoms in the reactants in a chemical reaction?
In a chemical reaction, the bonds between the atoms of the reactants break, and new bonds are formed to make the products. The atoms do not change, they are just rearranged.
What is the formula for chemical equations is balanced?
The number of reactants atoms must be equal to the number of products atoms.
How do you calculate a balanced chemical equation?
The number of reactants atoms must be equal to the number of products atoms.
How many total molecules are there in 3be2br?
The total number of atoms of the reactants should be equal to the total number of atoms of the products. The total number of molecules of the reactants should be equal to the total numbers of molecules of the products
What happens to the reactants in a chemical reaction?
Put casually, they react with each other to form products. e.g. Reactants A & B form products C & D A + B = C + D
How do chemical reactions change compounds?
Reactants become products by transfer of atoms.
What does not happen in a chemical reaction?
The total numbers of atoms of reactants do not change in products.
What must be true about the properties of the reactants and the properties of the products in a chemical reaction?
The reactants and the products must contain the same numbers of the same types of atoms, that is, atoms with the same atomic number, and either the products must contain at least one type of chemical bond distinct from any chemical bond in the reactants or the reactants must contain at least one type of chemical bond not found in the products.
