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3 years ago

Choose one of the statements below that would best complete the following

Chemistry

1 answer:

____ [38]3 years ago

6 0

Answer:

The correct answer is 4 substracting hydride ions from olefins.

Explanation:

The olefins are the unsaturated hydrocarbon also called alkenes that contain one double bond present between 2 carbon atoms.

On the other hand a carbenium ion is formed when a hydrocarbon loses a hydride ion to form a positively charged product.

For example allyl cation

CH2=CH-CH2+

The allyl cation is a carbenium ion formed by the removal of H- ion or hydride ion from the alkene propene.

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What is the pOH value of 0.0000877 M HCL

vredina [299]

Answer:

pOH=9.9

Explanation:

pH=-log[H+]= -log[0.0000877]

=4.06

pOH+ pH=14

pOH=14-4.06= 9.91

8 0

3 years ago

Z forms chloride compounds with the formulae ZCl2 and ZC13.

nordsb [41]

Answer:

(B) II, IV.

hope this answer is helpful for u.

3 0

2 years ago

Select all statements that are correct:____

topjm [15]

Answer:

A, C and D are correct.

Explanation:

Hello.

In this case, since the relationship between the vapor pressure of a solution is directly proportional to the mole fraction of the solvent and the vapor pressure of the pure solvent as stated by the Raoult's law:

$P_{vap}^{solution}=x_{solvent}P_{solvent}$

Since the solute is not volatile, the mole fraction of the solute is not taken into account for vapor pressure of the solution, therefore A is correct whereas B is incorrect.

Moreover, since the higher the vapor pressure, the weaker the intermolecular forces due to the fact that less more molecules are like to change from liquid to vapor and therefore more energy is required for such change, we can evidence that both C and D are correct.

Best regards.

4 0

3 years ago

Which compound has the highest melting point? <br> Picture has the options

Alexxandr [17]

Answer:

i would say the anwser is C

6 0

3 years ago

When someone standing at one end of a large room opens a bottle of vinegar, it may take several minutes for a person at the othe

Svetradugi [14.3K]

Out of the following given choice:

A. The increase in the airspace occupied by vinegar molecules

B. The chemical reaction with nerves, which is slower than other sensory processes

C. Attractive forces between the air and vinegar molecules

D. Random collisions between the air and vinegar molecules.

<span>The answer is D. While the particles may be moving at high velocities even at room temperatures, the delay is due to the numerous collisions between the vinegar molecules and the air molecules.This changes the vinegar’s molecules directions from straight lines to random unpredictable paths</span>

3 0

3 years ago