Answer:
Explanation:
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In this case, according to the given information, it is possible to recall the equation to calculate the heat, Q, in these calorimetry problems as shown below:
Thus, given the absorbed heat, mass and temperatures, we can easily calculate the specific heat of the metal as shown below:
Then, by plugging in we obtain:
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Answer:
When atoms have fewer than eight electrons, they have an inclination to react and type a lot of stable compounds.
Thus, associate atom continues to create bonds till associate octet of electrons is formed. this can be called octet rule by Lewis.
Answer:is an observation about chemical equilibria of reactions. It states that changes in the temperature, pressure, volume, or concentration of a system will result in predictable and opposing changes in the system
Explanation:
The reaction for formation of water vapour is as follows ;
2H2+ O2 —> 2H2O
Water vapour is in the gaseous form, at STP , 1 mol of any gas occupies 22.4 L volume
If 22.4 L occupied by 1 mol
Then amount of moles in 436 L - 1/22.4 x 436= 19.5 mol
Stoichiometry of O2 to H2O is 1:2
Amount of O2 moles reacted to formed H2O is -19.5 mol /2 = 9.75 mol
Answer:
it is formed by covalent bonds. the oxygen atom shares one elctron with each chlorine atom, forming single covalent bonds ( cl — o — cl )