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viktelen [127]
3 years ago
10

What is the formula to use for this question, "how far does light travel in 2.5s"?

Chemistry
1 answer:
Nutka1998 [239]3 years ago
6 0
The definition of the speed of light is exactly 299,792,458 meters per second, so to find how far it travels in a time period, multiply the speed of light times the time. Aka c=299,792,458m/s where c is speed of light, m is meters, and s is seconds. So for example to find how far light travels in 5 seconds, multiply by 5.
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Strong acids have a ______ value of Ka and the equlibrium for the reaction with water lies far to the _______.
nika2105 [10]

Answer:

All strong acids have a higher value of K_{a} and the equilibrium for the reaction with water lies far to the right.

Explanation:

All strong acids dissociate completely in the solution. Higher the value of dissociation constant of the acid, higher will be the dissociation of the acid.

The reaction of the acid with water will be favored in the forward direction for acids having higher dissociation constant value (K_{a}).

The dissociation of a strong acid say HA in water is shown below\textrm{HA}\left ( aq \right )+\textrm{H}_{2}\textrm{O}\left ( l \right )\rightleftharpoons \textrm{A}^{-}\left ( aq \right )+\textrm{H}_{3}\textrm{O}^{+}\left ( aq \right )

Higher the value of K_{a}, more will be the dissociation of the acid in water. The reaction will move far to the right side.

4 0
3 years ago
HELPPPPPPPPPPPPP PLEASE. Name the three different groups organisms are placed in based on how they get their food. Explain how t
Ket [755]

Answer:

Producers, consumers and decomposers

Explanation:

Producers can make their own food by capturing the sun's energy, but consumers and decomposers can't. Consumers need to eat other organisms to obtain energy. Decomposers are like the recyclers of nature. They obtain energy for their own needs while returning simple molecules to the environment.

8 0
3 years ago
Which of these refers to the strength of an acid
garik1379 [7]

Mg is what you measure them in

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Hess’s Law can be used to determine the heat of reaction in the lab. True False
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I think it's false I'm just guessing
4 0
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Cyclohexane (δh° = 936 kcal/mol ) and methylcyclopentane (δh° = 941 kcal/mol) have the same molecular formula but different stra
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The difference of the structures of the two isomers are shown in the picture. Generally, cyclic alkanes are much easier to break than straight-chained alkanes. When the molecules are cyclic, they are close to each other, thus lesser bond angles. Because they are closer, repulsion forces could be greater than attractive forces. That is why cyclohexane needs lesser energy of 936 kcal/mol compared to 941 kcal/mol because there is an additional straight-chained methyl substituent to break in methylcyclopentane.

4 0
4 years ago
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