Answer:
Balanced equation is related to the law of conservation of mass as it states that mass can neither be created nor be destroyed in a chemical reaction so the total no. of atoms in a reaction should remain same. in a balanced chemical equation also total no. of atoms of each elements remain same.
surrounds the nucleus of an atom in various energy levels called orbitals.
Explanation:
Electrons surrounds the nucleus of an atom in various energy levels called orbitals.
According to the Bohr's model of an atom, the extra nuclear space is made up of electrons in specific spherical orbits called shells or energy levels.
- The region of a maximum probability of where an electron is located is sometimes referred to as an electron cloud or orbital.
- Electrons move round the nucleus in certain permissible orbits.
- An electron in an energy level posses a definite amount of energy associated with it at that level.
- Electrons moves through the energy levels by gaining or losing energy.
Learn more:
Bohr brainly.com/question/4986277
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Answer:1 two elements and both are nonmetals.
Explanation:
Rearrange the equation n=M÷Mr. Where n = the number of moles. M= the mass in grams. And Mr = the molecular mass of the substance.
Since you are working out mass use the equation M= n x Mr. So you have
6.21 × 111 (molecular mass of CaCl2).
This will give you the answer 689.31 grams which would be your final answer.
