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pentagon [3]
3 years ago
11

Which model is most likely used to predict a future event

Chemistry
1 answer:
Mandarinka [93]3 years ago
3 0
The model most likely to predict the future event is the model of the weather systems. The model of the weather system provides much crucial information such as the temperature!
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A calibration curve relating absorbance(y) to concentration (x, measured in mol/L) of y= 0.36x-0.011 Use the calibration curve t
katrin [286]

Answer:

The concentration is 0.025 M.

Explanation:

We will use beer law to find the concentration.

A = εmCl

This law relate to the linear equation Y = mx + b in following way,

A = y = absorbance

m = εm = slope or extinction coefficient in beer law.

x = c = concentration

and l is length which is 1 cm

Thus equation can be written as,

A = εmc + b

A - b / εm = c

in order to find the concentration we will abstract the intercept from absorbance and then divide it by the slop.

0.02 - 0.011 / 0.36 = c

c =0.009

c = 0.025 M.

3 0
4 years ago
Complete the following equation of nuclear transmutation.
LiRa [457]

Answer:

Option A. 1 0n

Explanation:

Details on how to balanced the equation for the reaction given in the question above can be found in the attached photo.

4 0
4 years ago
HELP CHEM will mark brainlist
Vilka [71]

Answer:

b

a

~0.15125 M HCl

7 0
3 years ago
Be sure to answer all parts. The sulfate ion can be represented with four S―O bonds or with two S―O and two S═O bonds. (a) Which
VMariaS [17]

Answer:

a) Representation - (in attachment)

b) Tetrahedral geometry and

c) sp^{3} hybrid orbitals invovle sigma bonding.

\pi orbitals are formed by the overlapping of d-orbitals of sulfur with p-orbitals of oxygen.

Explanation:

a)

Representation in attachment.

The overall charge in the both structures are -2. The structure (b) is favored by the resonance structures since the formal charge with in the species are remained.

Therefore, structure (b) is the better representation of sulfate ion.

b)

In sulfate ion, sulfur atom is attached with four different oxygen atoms. According to the VSEPR theory , the sufate ion has tetrahedral geometry.

There is four sigma bonds and zero lone pairs present on the central metal atom.

Hence, the hybridization of the sulfur atom is sp^{3}

c)

The s and p orbitals of sulfur invovles hybridization and form sigma bonds.The orbitals of sulfur involves \pi bonding.

Therefore, \pi bonds are formed by the overlapping of d-orbitals of sulfur with  p-orbitals of oxygen.

5 0
4 years ago
Which of the following is referenced in the modern "periodic law"
katovenus [111]
Atomic number is correct
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3 years ago
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