Answer:
b Explanation:
i think because i did something like this before
Answer:
A for 1 and 4 B for 2 and 3 ..........
Answer: More than one atom of the same type chemically joined together
Explanation:
An atom is the smallest unit of any matter which may or may not have independent existence. Example: Argon (Ar) is an element which exist as Ar atom only.
Molecule is the smallest unit of any matter which always have independent existence. For example: Hydrogen (H) is an element which can exist in nature as molecule only.
Atoms of different elements chemically joined together is called as a compound. Example: is a compound formed by chemical combination of hydrogen (H) and oxygen (O) atom.
Answer:
La masa como medida de la materia :La masa se relaciona con la cantidad de materia y su valor mide la inercia de un cuerpo, así como la acción gravitatoria que este ejerce.
Explanation:
4.) an element cannot be decomposed by a chemical change, it is a pure substance and no other materials compose it.