1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mel-nik [20]
2 years ago
12

Some fruits and vegetables are preserved by pickling them. Nandini got confused

Chemistry
1 answer:
stepan [7]2 years ago
3 0

Answer:

ye

Explanation:

ye

You might be interested in
Tommy was walking at a rate of 4
Helga [31]
A positive acceleration indicates that the object sped up. This means that if you compare the first speed to the second, the second speed should be higher. 

A negative acceleration indicates that the object has slowed down. This means that if you compare the first speed to the second, the second speed should be lower.

If an acceleration is 0, it means that it neither slowed down nor sped up.

Now let us analyze your problem by listing down the speed and the time:

At noon: 4 mi/hr 
12:30 :   6 mi/hr
2:30   :   2 mi/hr

From noon to 12:30, you will notice that there is an increase in speed. This means that Tommy had a positive acceleration. (Rules out D.)

From 12:30 to 2:30, there is a decrease in speed. This would indicate that Tommy had a negative acceleration. (Rules out C.) 

No speed was the same, so acceleration was never 0. (Rules out A.)

From the assumptions above, we can now deduce that the answer is B.


8 0
3 years ago
What is the complete ionic equation for
murzikaleks [220]

Answer:

what  is  the  net  ionic equation

H2SO4(aq) + Cal2(aq) → CaSO4(s) + 2Hl(aq)?

A. H++ SO42- + Ca2+ + 21 → CaSO4 + H+ +1-

B. 2H+ + S042- + Ca2+ + 21° → Ca2+ + SO42- + 2H+ + 21

C. S042- + Ca2+ → CaSO4,

D. 2H+ + SO42- + Ca2+ + 2I- → CaSO4 + 2H+ + 2I-

cancel  the spectator  ion that is the  ions  which  does  not take  place in  the  reaction

for this  case  is  2 H^+  and 2 i^-

5 0
3 years ago
What is the purpose of light energy?
zimovet [89]
The sun gives off light energy to help plants photosynthesize and make food
8 0
2 years ago
Here is a more complex redox reaction involving the dichromate ion in acidic solution: 3N O 2 − + 8H + + C r 2 O 7 2− → 3N O 3 −
Fantom [35]

Answer:

NO2- is the reducing agent.

Cr2O7_2- is the oxidizing agent.

H+ is neither

Explanation:

Reduction is the gain in electron. A chemical specie that undergoes reduction is called the oxidizing agent.

Oxidation is simply the loss in electrons. A chemical specie that undergoes oxidation is called the reducing agent.

Let us look at the species.

The first specie is the NO2-. In this specie, the oxidation number of nitrogen changed from +3 to +5 in NO3-. Thus we can see that there is more loss of electron to have caused an increase in the oxidation number positively. This shows an oxidation. Hence, NO2- is the reducing agent.

Let us look at the chromium. We can see that the oxidation number of chromium changed from +7 to +3.

Now we can see that it is a decrease and hence, it is a gain of electron and thus it is reduction. This means the first chromium specie is the oxidizing agent.

The hydrogen ion is simply placed there to balance the ions and hence it is neither the oxidizing nor the reducing agent.

4 0
3 years ago
Why do scientists use spiral tubes instead of straight ones?
elixir [45]

Answer:

Heat and mass transfer of a LiBr/water absorption heat pump system (AHP) was experimentally studied during working a heating-up mode. The examination was performed for a single spiral tube, which was simulated for heat transfer tubes in an absorber. The inside and outside of the tube were subjected to a film flow of the absorption liquid and exposed to the atmosphere, respectively. The maximum temperature of the absorption liquid was observed not at the entrance but in the region a little downward from the entrance in the tube. The steam absorption rate and/or heat generation rate in the liquid film are not constant along the tube. Hence the average convective heat transfer coefficient between the liquid film flowing down and the inside wall of the tube was determined based on a logarithmic mean temperature difference between the tube surface temperature and the film temperature at the maximum temperature location and the bottom. The film heat and mass transfer coefficients rose with increasing Reynolds number of the liquid film stream.

4 0
2 years ago
Other questions:
  • What is the mass (in grams )for 88.624moles of silver (Ag )? ( round your answer to a whole number (no decimal )
    6·1 answer
  • Balance this equation and show work. BRAINLIEST<br><br> Zn + O2 → Zn2+ + O2-
    15·1 answer
  • Is calcium and chlorine am Ionic bond?
    6·2 answers
  • On the basis of periodic trends, choose the larger atom from each pair (if possible): match the elements in the left column to t
    13·1 answer
  • Consider the reaction:
    14·1 answer
  • A Textbook of
    13·1 answer
  • nter your answer in the provided box. Nitric acid (HNO3) is used in the production of fertilizer, dyes, drugs, and explosives. C
    8·1 answer
  • Which situation has given to a trait that could be passed on to offspring ?
    11·1 answer
  • Who is the first to write an atomic theory based upon experimentation?
    10·1 answer
  • Explain the difference between current electricity and magnetism.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!