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jolli1 [7]
3 years ago
6

PLEASE ANSWER 30 POINTS !!

Chemistry
2 answers:
maksim [4K]3 years ago
4 0

Answer:

I need further explanation as to what it is.

Explanation:

Alexeev081 [22]3 years ago
3 0
Can u explain it more plz.
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a sample of h2 gas is collected over water at 23 degrese celsius, if the observed pressure is 750.0 torr, calculate the partial
Ivahew [28]

Answer:

728.9 torr

Explanation:

Collecting a gas over water results in gathering a mixture of gases. First of all, the target gas is collected, but the gathered sample also contains saturated water vapor.

The saturated water vapor always produces the same pressure which depends on temperature. At a given temperature of 23 degrees Celsius, the saturated vapor pressure is equal to 21.1 torr.

The total pressure is equal to the sum of partial pressures of water and hydrogen:

p = p_{H_2O} + p_{H_2}

Solving for the partial pressure of hydrogen:

p_{H_2} = p - p_{H_2O} = 750.0~torr - 21.1~torr = 728.9~torr

4 0
3 years ago
Whats the ratio of KMnO4:KCl =
Natasha2012 [34]
(K+ + MnO4- )+(K+ +Cl- )
This would be a one to one ratio as the charges of each component are equal 
5 0
3 years ago
Circle the correct one from given alternatives.
mash [69]

Answer:

24 is the correct anwer

this the anwer text this u no

3 0
1 year ago
Read 2 more answers
Write the correct ionic formula when given two elements that bond ionically.
Tanzania [10]
Answer:
            Ionic bond is formed by the opposite ions attraction between the 2 atoms in an ionically bonded compound. The two ions i.e. Cation and Anions are formed by oxidation and reduction reactions respectively. General Ionic formula is as follow,

                                             Mⁿ⁺ + Nⁿ⁻   →  MN
where;
           Mⁿ⁺   =  Cation

           Nⁿ⁻   =  Anion

           MN  =  Salt

Explanation:
                   Ionic bond is the electrostatic forces of attraction between positively charged cations and negatively charged Anions. These forces are very stronger resulting in increasing several physical properties of Ionic compounds like melting point and boiling point e.t.c.

Example:

Sodium Chloride:
                           NaCl is formed by Na⁺ cation and Cl⁻ anion as follow,

Oxidation of Na;

                                      2 Na  →  2 Na⁺  +  2 e⁻
Reduction of Cl₂;

                                    Cl₂  +  2 e⁻  →  2 Cl⁻

Crystal Lattice formation is as follow,

                                  Na⁺  +  Cl⁻   →  NaCl
4 0
2 years ago
The electronic configuration of an element is given below.
Shalnov [3]

Answer:

It is reactive because it has to gain an electron to have a full outermost energy level.

Explanation:

The electron configuration of oxygen is 1s2,2s2 2p4.

Oxygen is in group six in the periodic table so it has six electrons in its valence shell. This means that it needs to gain two electrons to obey the octet rule and have a full outer shell of electrons (eight).  

3 0
2 years ago
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