Answer:
1
The heat of reaction is
The enthalpy is
2
The concentration of HCl is
Explanation:
From the question we are told that
The volume of is
The number of concentration of is
The volume of HCl is
The number of concentration of is
The temperature difference is
Now the heat of reaction is mathematically represented as
Where
is the specific heat of water with value
Now
where is the molar mass of NaOH with the value of 0.04 kg/mol
So
While
Where is the molar mass of with the value of 0.03646 kg/mol
So
=>
The enthalpy is mathematically represented as
=>
From the second question we are told that
The volume of HCl is
The volume of NaOH is
The concentration of NaOH is
The first temperature change is
The second volume of
The mass of NaOH is
substituting values
The mass of the product formed is
substituting values
The multiplication by 1000 is to convert it from kg to grams
Now the mass of HCl is
substituting values
Now the concentration of HCl is
The multiplication of is to convert it from kg/mol to g/mol
Explanation:
A metal with one valence electron is highly reactive compared to those with more than one electron.
Atoms including those of metals reacts in order attain a stable electronic configuration just like those of noble gases.
An atom with one valence electron have just one electron in its valence shell.
- Metals generally have large sizes.
- when the electron in this shell is lost, the metal atom can then attain stability.
- therefore, such atom will quickly want to combine with any other willing to accept the electron so that they can be stable.
- Those with more than one electron will find it difficult to lose them.
- It requires huge energy to remove such electrons compared to the ones with only one valence electron.
learn more:
Valence electrons brainly.com/question/3023499
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Answer:
Explanation:
Water vapor, carbon dioxide, methane, and other trace gases in Earth's atmosphere absorb the longer wavelengths of outgoing infrared radiation from Earth's surface. These gases then emit the infrared radiation in all directions, both outward toward space and downward toward Earth
Answer:
x = 3/6.02 = 0.50.
Explanation:
1 mole of CO2 has 6.02 x 10^23 molecules of CO2.
Say x moles of CO2 has 3.0x10^23 molecules of CO2.
Therefore x = 3/6.02 = 0.50.
Answer:
Their must be a picture with this question so we can answer it
Explanation: