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The reactants are the "befores" and the products are the "afters." For example, in this chemical reaction (acid-base neutralization):
HCl + NaOH -> NaCl + H2O
hydrochloric acid (HCl) and sodium hydroxide (NaOH) are the reactants, and sodium chloride (NaCl) and water (H2O) are the products.
Wiki User
∙ 12y ago
Wiki User
∙ 10y agoThe mass of the products equals the mass of the reactants because the same atoms are present throughout the reaction. I hope I helped!
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Substances change after a chemical reaction is called what?
A chemical reaction is the transformation of reactants in products.
What are substance you start with in a chemical reaction called?
The reactants
What does not happen in a chemical reaction?
The total numbers of atoms of reactants do not change in products.
What holds true for a chemical change?
During a chemica change the composition of reactants is modified, new products appear.
The energy change when reactants are converted to products in a chemical reaction is?
related to the change in number and strength of chemical bonds. per novanet.
What happens to the reactants when a chemical change occurs?
The reactants change & turn into products.
Which are the products and reactants of a chemical reaction most likely to have in common?
Input: reactants --> [ They react ] --> Output: products = what you get out of it
What does a chemical change always do?
A chemical change always changes the chemical composition of the reactants to produce products with new and unique properties, different from the reactants.
What is made in a chemical change?
From the reactants new products are formed.
What always occur in a chemical change?
The reactants are transformed in products.
Substances change after a chemical reaction is called what?
A chemical reaction is the transformation of reactants in products.
What is the chemical change or reaction?
Transformation of reactants in new compounds (products) is a chemical reaction.
What does change in a chemical reaction?
The reactants change. The chemical bonds between the atoms in the reactants break, and then new bonds are formed, which results in the formation of new products.
What must happen for reactants to be changed into product?
in order for reactants to be changed into products, there needs to be a chemical change.
Why is it wrong to change subcripts when balancing chemical equation?
When you are balancing known reactants and known products which is always the case when you are asked to "balance" a chemical equation you must not change the subscripts as that changes the reactants or the products to a different chemical compound.
What are properties in a chemical change?
During a chemical change (chemical reaction) the resulting products have, of course, other properties - compared to the reactants.
What are substance you start with in a chemical reaction called?
The reactants
