"For example; water is a covalent compound which is formed by the covalent bonding between hydrogen and oxygen atoms."
The material’s temperature decreased 80 degrees celcius
Answer:
Answer is shown on the paper :D
Explanation:
Remember to follow sig-figs.
That John Dalton was an English chemist that was most famous for proposing atomic chemistry.He proposed atomic theory in 1803,which states that all matter is composed of small indivisible particles called atoms.
Answer:
139/56 Ba
Explanation:
In writing nuclear equations, there must be a balance of the mass and charge on both sides of the reaction equation. That is, the sum of masses on the lefthand side of the nuclear reaction equation must equal the sum of masses on the righthand side of the nuclear reaction equation. Similarly, the charges on the lefthand side of the nuclear reaction equation must equal the sum of the charges on the right hand side of the nuclear reaction equation.
Hence, the isotope of barium formed in the equation mentioned in the question is 139/56 Ba.
