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madreJ [45]
3 years ago
5

Which statements would best represent a model Newton's Law of action-reaction?

Chemistry
2 answers:
pychu [463]3 years ago
6 0

Answer:

A

Explanation:

OleMash [197]3 years ago
5 0

Answer:

Explanation:

It can be several answers as long as you verify your point on why.

Newton's Law of action-reaction says that 'For every action, there is an equal and opposite reaction.'

A: the toy car will be rolling down the ramp, there will be friction and kinetic energy.

C: A toy boat  The toy boat pushes against the water (action force), the water pushes back on the boat (reaction force) and pushes it forward.

Sorry if i'm wrong

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During lab, you evaluated the bond order and bond length of a series of carbon-carbon bonds. Use the same concepts to predict th
erma4kov [3.2K]

Answer:

N≡N

Explanation:

The image attached shows the nitrogen compounds that are being referred to in the question.

There are certain things we ought to know in order to answer the question accurately.

The bond order of a compound is equal to the number of bonds between two atoms. The greater the bond order, the shorter the bond length between the two atoms.

N≡N has a bond order of three, this is the highest bond order among all the species listed in the question. Hence it has the shortest bond length among the trio. Hence the answer.

8 0
3 years ago
Descibe the methods you will use to identify and isolate yeast and bacteria in a pineapple juice​
zalisa [80]

Answer:

The correct answer would be the use of differential and selective growth medium.

Explanation:

The mixed colonies states of certain species can be developed on the differential and specific media relying on the morphology saw in the general media. These types of selective and differential media will allow certain microorganisms to grow only and not all the rest species present on the media.

It will help in recognizing species present in the mixed colonies present in such a growth medium. Different tests like catalase can be performed to dispose of certain choices not long before the utilization of the differential and particular media.

Thus, the correct answer would be the use of differential and selective growth medium.

4 0
3 years ago
If an endothermic reaction begins at 26 degrees celsius and decreases by 2 degrees Celsius per minute, how long would it take to
Natalija [7]

Answer:

It would take 13 minutes.

Explanation:

The temperature decreases at a linear rate, meaning that we can describe the process by using the following formula:

  • T₂ = T₀ - 2*t

Where T₂ is the final temperature, T₀ is the initial temperature; and t is the elapsed time in minutes.

We input the data given by the problem:

  • 0 °C = 26 °C - 2°C/min * t

And solve for t:

  • t = 13 min
8 0
3 years ago
When 0.5141 g of biphenyl (C12H10) undergoes combustion in a bomb calorimeter, the temperature rises from 25.823 °C to 29.419 °C
natka813 [3]

Answer:

\Delta_{r}U of the reaction is -6313 kJ/mol

\Delta_{r}H of the reaction is -6312 kJ/mol

Explanation:

Temperature\,\,change= \Delta U = 29.419-25.823 =3.506^{o}C

q_{cal}= C \times \Delta T

=5.861 \times 3.596 = 21.076\,kJ

q_{rxn}= -q_{cal}= -21.076\,kJ

\Delta_{r}U= -21.076 \times \frac{154}{0.5141}= -6313\, kJ/mol

Therefore, \Delta_{r}U of the reaction is -6313 kJ/mol.

The chemical reaction in bomb calorimeter  is as follows.

C_{12}H_{10}(s)+\frac{27}{2}O_{2}(g)\rightarrow 12CO_{2}(g)+5H_{2}O(g)

Number\,of\,moles\Delta n=(12+5)-\frac{27}{2}=3.5

\Delta_{r}H=\Delta E+ \Delta n. RT

=-6313+3.5\times 8.314\times 10^{-3} \times 3.596=-6312\,kJ/mol

Therefore, \Delta_{r}H of the reaction is -6312 kJ/mol.

3 0
3 years ago
Which of the following best summarizes photosynthesis?
Vsevolod [243]

Answer:

c. a process by which plants produce sugar using energy of sunlight

8 0
4 years ago
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