Polarity- a seperation of electric charge leading to a molecule having an electric dipole.
Molecular shape- I<span>dentify the central atom.
Count its valence electrons.
Add one electron for each bonding atom.
Add or subtract electrons for charge
Divide the total of these by 2 to find the total.number of electron pairs.
<span>Use this number to predict the shape.</span></span>
The answer is 55 because if you run 3 it is the opportunity of a life time like if you read this
Answer:
N
Explanation:
Electronegativity increases as you move from left to right across a period, and decreases as you move down the groups.
Answer:
C
Explanation:
Charles law states that volume of gas is directly proportional to temperature at constant pressure
V/T = k
where V - volume , T - temperature and k - constant
\frac{V1}{T1} = \frac{V2}{T2}
T1
V1
=
T2
V2
where parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation
in the question it states that the temperature has been increased from 278 K to 231 K but it should actually be temperature is decreased from 278 K to 308 K
substituting the values in the equation
\frac{417cm^{3} }{278K} = \frac{V}{308 K}
278K
417cm
3
=
308K
V
V = 462 cm³
the answer should be C. 462 cm³
Answer:
When sodium hydroxide (NaOH) dissolves in water, it separates into positively - charged sodium ions (cations) and negatively - charged hydroxide ions (anions).
Hope this helped.