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
solniwko [45]
2 years ago
7

A voltaic cell has a zinc anode and a copper cathode. They are connected by a wire but no salt bridge. What can you predict will

happen? A. Without a salt bridge to slow it down the reaction will occur faster than normal. B. The electrons will flow to the zinc anode where a negative charge will build up and eventually halt the reaction. C. None of these D. The electrons will flow to the copper cathode where a negative charge will build up and eventually halt the reaction.
Chemistry
1 answer:
Allisa [31]2 years ago
4 0

The prediction is that B. The electrons will flow to the zinc anode where a negative charge will build up and eventually halt the reaction.

<h3>What is zinc?</h3>

This is known as a chemical element, of the periodic table, that is essential to life and is one of the most widely used metals. Zinc is of considerable commercial importance.

Without the salt bridge, positive and negative charges will build up around the electrodes causing the reaction to stop.

Hence, we know that the purpose of the salt bridge is to keep the solutions electrically neutral and allow the free flow of ions from one cell to another.

Read more about<em> zinc</em> here:

brainly.com/question/25764334

#SPJ1

You might be interested in
How many atoms are in 3.2 moles or hydrogen
wel
6,02×10²³ * 3,2 = 19,264×10²³=1,9264×10²⁴
4 0
3 years ago
The plot shows the absorbance spectra for solutions of caffeine, benzoic acid, and Mountain Dew® soda, each in 0.010 M HCl . A p
Aliun [14]

Complete Question

The diagram of the complete question is shown on the first uploaded image.

Answer:

a) The approximate absorbance of benzoic acid at 228 nm? : A = 0.8

b) The molar absorptivity(∈)

of benzoic acid at 228 nm? : ∈   =  1.12 * 10^{4} M^{-1} cm^{-1}

Explanation:

Looking at the absorbance spectra, we can see that the approximate absorbance of benzoic acid at 228 is 0.8.

mass concentration of benzoic acid = 8.74 \frac{mg}{L} =8.74 * 10^{-3} \frac{g}{L}

the molar concentration of benzoic acid = (mass concentration of benzoic acid) / (molar mass of benzoic acid )

 

molar concentration of benzoic acid = (8.74 *10^{-3} \frac{g}{L} ) /(122.12\frac{g}{mol} )

molar concentration of benzoic acid = 7.157 * 10^{-5}M

molar absorptivity (∈) of benzoic acid = (absorbance) /[ (molar concentration of benzoic acid ) × (path length) ]

 

 ∈    = (0.8) / [ (7.157 *10^{-5}M) ×(1.00 cm)]

        =  1.12 * 10^{4} M^{-1} cm^{-1}

     

5 0
3 years ago
Rosa is planning an investigation using a microscope to try to identify a group of cells. She sees that the cells are joined tog
lara31 [8.8K]

Answer:

either bacterial cells or plant cells but I think bacterial

Explanation:

from google: Bacteria are single celled microbes. Bacteria are classified into five groups according to their basic shapes: spherical (cocci), rod (bacilli), spiral (spirilla), comma (vibrios) or corkscrew (spirochaetes). ... They can exist as single cells, in pairs, chains or clusters.

- cannot be human or mouse cells as both are animals and animal cells do not have cell walls

6 0
3 years ago
Exit which of the following is true of gases?
alukav5142 [94]

They dont have definite shape, high density and volume.

But they can be mixed together very easily

hope you got your answer

8 0
3 years ago
Write the nuclear decay equation for the alpha particle decay of Pu-243
Mkey [24]

Answer:

Explanation:

The reaction can be represented by this nuclear equation: 23892U → 23490Th + 42He + Energy.

7 0
3 years ago
Other questions:
  • Which description of nitrogen-15 is correct?
    11·1 answer
  • Which of the following is diamagnetic?
    12·1 answer
  • Which best describes ionic compound formulas?
    6·2 answers
  • What is responsible for morphogenesis
    7·2 answers
  • Nylon 88 is made from the monomers H2N(CH2)8NH2 and HOOC(CH2)6COOH. So, would you characterize nylon 88 as rather an addition or
    10·1 answer
  • Help asap please 1!!!!
    12·1 answer
  • What is the percent composition of oxygen in CsHSO2<br> 
    10·1 answer
  • Which is the correct molar mass for the<br> compound aluminum carbonate, Al2(CO3)3?
    9·1 answer
  • High percent yield generally indicates a carefully run experiment.<br> True<br> O False
    13·2 answers
  • When electrons flow steadily in one direction, the current is:
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!