Answer:
There is the same amount of matter before and after the reaction
The atoms are arranged in different compounds and molecules.
There are the same types and number of atoms before and after the reaction
Explanation:
--The same amount of matter before and after the reaction and the same types and number of atoms before and after the reaction is because of the law of conservation of mass. Matter cannot be created or destroyed.
--the reacting atoms and molecules will undergo a transformation to different molecules and compounds. Can be predicted because of the types of chemical reactions:
combination (combining 2 elements to create a new compound)
Decomposition (a compound breaking down into different parts)
Single and Double displacement (the molecules/ atoms will change who they are paired with)
Answer:
There are two dots are present on the left side of calcium atom which represents the unpaired electrons present in the outermost shell. This structure is presented by Lewis in order to show the number of unpaired electrons in the atom.
Explanation:
Answer:
Diatomic molecules are molecules composed of only two atoms, of the same or different chemical elements. The prefix di- is of Greek origin, meaning "two". If a diatomic molecule consists of two atoms of the same element, such as hydrogen (H2) or oxygen (O2), then it is said to be homonuclear.
Explanation:
I did it before
