The solution of Ba(OH)2 will have the lowest freezing point. This is because it dissociates into 3 ions, one Ba and 2 OH, which is more than any of the others. Freezing point depression is a colligitive property of water that depends, in part, on the number of ions.
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Answer: The statement is true
Explanation:
The half-life of a radioactive isotope is the time taken for half of the total number of atoms in a given sample of the isotope to decay.
For instance
The half-life of radium is 1622 years. This means that if we have 1000 radium atoms at the beginning, then at the end of 1622 years, 500 atoms would have disintegrated, leaving 500 undecayed radium atoms
Thus, the statement is true
Answer:
2.52 atm
Explanation:
Change C to K.
Solve for P1=P2V2T2/V1T1
- Hope that helps! Please let me know if you need further explanation.
Answer is: concentration of hydroxide ions [OH⁻] is 1.047·10⁻¹⁰ M.
pH = 4.02.
pH = -log[H⁺<span>].
</span>[H⁺] = 10∧(-pH).
[H⁺] = 10∧(-4.02).
[H⁺] = 9.54·10⁻⁵ M; equilibrium concentration of hydrogen cations.
[H⁺] · [OH⁻] = 1·10⁻¹⁴ M².
[OH⁻] = 1·10⁻¹⁴ M² ÷ 9.54·10⁻⁵ M.
[OH⁻] = 1.047·10⁻¹⁰ M; equilibriom concentration of hydroxide anions.
Explanation:
Hydrocarbon combustion refers to the chemical reaction where a hydrocarbon reacts with oxygen to create carbon dioxide, water, and heat. Hydrocarbons are molecules consisting of both hydrogen and carbon. They are most famous for being the primary constituent of fossil fuels, namely natural gas, petroleum, and coal. For this reason, fossil fuel resources are often referred to as hydrocarbon resources.[1] Energy is obtained from fossil fuels through combustion (burning) of the fuel. Although impurities exist in fossil fuels, hydrocarbon combustion is the primary process in the burning of fossil fuel.
