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gayaneshka [121]
3 years ago
10

How are hydrogen atoms arranged in ethene? in -different planes, separated by angles of 180° in -the same plane, separated by an

gles of 120° in -the same plane, separated by angles of 1800 in -different planes, separated by angles of 1200​
Chemistry
1 answer:
nalin [4]3 years ago
7 0

Answer:

Explanation:

How best to demonstrate the equivalence of hydrogens in  

H 2 C = C H 2 ?

1 H NM R spectroscopy would be the best way to show this. The 4 hydrogens give the one signal.

Explanation:

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If 250. mL of nitrogen is collected at 25.0 degrees C and 105 kPa pressure, what will be the volume of the gas at STP?
Dima020 [189]

Answer:

Calculate the volume of dry gas at STP. 28). A 255-mL sample of nitrogen was collected over water at 21oC at a pressure of 745 mm

Explanation:

5 0
3 years ago
Solve the equation for x.4+2(x-4)=-7(x+7)​
OverLord2011 [107]

Answer:

x=-5

Explanation:

we have

4+2(x-4)=-7(x+7)

Solve for x

That means----> Isolate the variable x

Applying the distributive property both sides

4+2(x)+2(-4)=-7(x)-7(7)

Remember that

(+1)(-1)=-1

4+2x-8=-7x-49

Combine like terms left side

2x-4=-7x-49

Adds 7x both sides

2x-4+7x=-7x-49+7x

9x-4=-49

Adds 4 both sides

9x-4+4=-49+4

9x=-45

Divide by 9 both sides

x=-5

4 0
3 years ago
How do greenhouse gases affect temperatures on Earth?
Feliz [49]

=>. the function of greenhouse gases are

=>. it captures the heat comming out from the

sun

=>. by capturing the heat it makes our earth

warm

=> if excess of heat will traped by them then

our earth become more warm and this leads

to increase in temperature

=> when the overall temperature will increase

then the ice sheets on pole will melts

and this leads to increase in sea level

=> then the land near water will sinks in water

3 0
3 years ago
Which of the following statements about the reaction quotient, Q is false? a. The value of Q can be used to predict equilibrium
irakobra [83]

Answer:

The correct statements are :b, c , d, and e.

Explanation:

Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as K_{eq}

K is the constant of a certain reaction when it is in equilibrium, while Q is the equilibrium quotient of activities of products and reactants at any stage other than equilibrium of a reaction.

  • Q_c, reaction will move in forward direction and concentration of products will increase.
  • Q_c>K_c, reaction will move in backward direction and concentration of reactant will increase.
  • Q_c=K_c reaction is at equilibrium.

4 0
3 years ago
The dopamine molecule has an intermediate hydrophobicity. Edit the dopamine molecule so that it is more hydrophobic.
yulyashka [42]
You should edit the dopamine molecule by tampering with its polar groups. Polar groups affect chemical's physical properties including hydrophobicity.
5 0
4 years ago
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