Answer:
When the core is hot enough, nuclear fusion commences. Fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy. ... This is because a single helium atom contains less mass than two hydrogen atoms. The excess mass is released as energy.
Answer:
[HCl] = 2.77 M (option b)
Explanation:
A 10% by mass is an information that means, 10 g of solute are contained in 100 g of solution.
Density is mass / volume and it always corresponds to solution.
So solution mass is 100 g. Let's find out solution volume with density
Solution mass / Solution volume = Solution density
100 g / Solution volume = 1.01 g/mL
100 g / 1.01 g/mL = 99 mL
In conclusion our 10 g of HCl are contained in 99 mL of solution
Molarity is mol of solute in 1L of solution
Let's convert the mass to moles (mass / molar mass)
10 g / 36.45 g/mol = 0.274 moles
Let's convert the mL in L
99 mL = 0.099L
Molarity is mol/L → 0.274 mol / 0.099L = 2.77M
Answer:
This relationship between pressure and volume is known as Boyle's lawA law that states that at constant temperature, the volume of a fixed amount of a gas is inversely proportional to its pressure., after its discoverer, and can be stated as follows: At constant temperature, the volume of a fixed amount of a gas is. The pressure law states that for a constant volume of gas in a sealed container the temperature of the gas is directly proportional to its pressure. This can be easily understood by visualising the particles of gas in the container moving with a greater energy when the temperature is increased.
Explanation:
