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vesna_86 [32]
3 years ago
10

Draw the lewis structure for the molecule ch3ch2cch. how many sigma and pi bonds does it contain?

Chemistry
1 answer:
babunello [35]3 years ago
7 0
Answer:
             The structure of 1-Butyne is shown below and it contains;

                                         Nine Sigma Bonds

                                             Two Pi Bonds

Explanation:
                     
In given structure the sigma bonds are highlighted with blue colour and pi bonds are highlighted by Black colour and indicated by red arrows.
                     Remember the very first covalent bond between two atoms is always the sigma bond. After formation of sigma bond if further p orbitals with unpaired electrons are available they will form pi bond, or two pi bonds as in given scenario.

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The absorption spectrum is the result of absorption of light radiation by a material (solid or liquid) as a function of wavelength or frequency. The figure is shown below:

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4 years ago
If 980kJ of energy as heat are transferred to 6.2L of water at 291 K what will the final temperature be? The specific heat of wa
In-s [12.5K]

Answer:

Final temperature = T₂ = 328.815 K

Explanation:

Given data:

Given energy = 980 KJ = 980×1000= 980000 J

Volume = 6.2 L

Initial temperature =T₁= 291 K

Specific heat of water = 4.18 j /g .K

Final temperature = T₂ = ?

Formula:

Q = m. c . ΔT

ΔT = T₂ - T₁

we will first convert the litter into milliliter

6.2 × 1000 = 6200 mL

It is given in question that

1 mL = 1 g

6200 mL = 6200 g

Now we will put the values in formula,

Q = m. c . (T₂ - T₁)

980000 j = 6200 g . 4.18 j /g .K . (T₂ - 291 K)

980000 j = 25916 j/ k .  (T₂ - 291 K)

980000 j /  25916 j/ k =  T₂ - 291 K

37.8145 K + 291 K =T₂

T₂ = 328.815 K

4 0
4 years ago
Using the Lewis dot Symbol Illustrate how the atoms are bonded in each of the following ionic compounds; thanks
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I’m not really sure but i think it’s 2.
6 0
3 years ago
Calculate the freezing point of a solution that contains 1.75 mol of nacl dissolved in 1.00 kg of water. be sure to enter the ne
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ΔT = Kf * b * i

where Kf is the cryscopic constant for the solvent, b is the molarity of the solution in moles per kilogram and i is the van't Hoff factor, which tells us how many ions will be released when a substance is dissolved. 

Kf = 1.853, b = 1.5, i = 2 (Na⁺ and Cl⁻)

ΔT = 5.5 °C

The new freezing point will be 0 + 5.5
5.5 °C
3 0
3 years ago
Why is it necessary to know the temperature of the reactants and the products of a reaction in order to determine change in the
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Answer:

Free Energy (G) can either increase or decrease for a reaction when the temperature increases. It depends on the entropy (S) change. The change in a quantity is represented by the Greek letter delta. ... Hence, when the temperature increases the numeric value of the free energy becomes larger.

Explanation:

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