Answer:
true.
Explanation:
This means that in a chemical reaction, the atoms in the reactants are the only atoms that can end up in the products. All the different types and number of atoms in the reactants end up in the products.
Portal system. Think that may help
They are grouped together by the type of elements they are
Answer: skeletal equation :
The products are sodium nitrate and barium sulphate.
balanced equation :
Explanation:
A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.
The skeletal equation is:
The balanced chemical equation is:
Answer:
Atom
Explanation:
The atom is the simplest unit of matter that has all the properties of an element. It is made up of 3 subatomic particles: protons, electrons and neutrons.
Knocking out the other choices, the cell is the basic unit of life. An electron is only part of an atom, which has its own properties, while a compound is a combination of two or more elements that are chemically bonded.