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Stolb23 [73]
3 years ago
8

30 POINTS!!! NEED ASAL

Chemistry
1 answer:
nata0808 [166]3 years ago
4 0

Answer:

ITS THE LAST ONE AND THE SECOND ONE

Explanation:

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In a lead-acid battery, the electrodes are consumed. In this battery, Select one: a. the anode is PbO2. b. the cathode is Pb. c.
Gnoma [55]

Answer:

The correct answer is option e.

Explanation:

The lead acid battery consists lead as an anode and lead oxide as a cathode. Both the electrodes are suspended in dilute sulfuric acid which act as an electrolyte.

At anode: Oxidation

Pb(s)+SO_4^{2-}(aq)\rightarrow PbSO_4(s)+2e^-

At cathode: Reduction

PbO_2+SO_4^{2-}(aq)+4H^+(aq)+2e^-\rightarrow PbSO_4(s)+2H_2O

6 0
3 years ago
Which of the following animals are an example of coevolution? *
pychu [463]

Acacia ant and acacias animals are an example of coevolution

Coevolution is the reciprocal evolutionary change in a set of interacting population over time resulting from the interaction between those population and an example of coevolution that is not characteristics of an arm race but one which provides a mutual benefit to both a plant species and insect is that of the acacia ant and acacia plant and many cases of coevolution can be found between plants and insects

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8 0
10 months ago
I) What could Linda do to find out if there were salts dissolved in the
zhenek [66]

Answer:

she can use crystalization method.

Explanation:

She should boil that liquid on  flame and then cool it down on mederate temprature and check it out rather the crystals formed or not . if crystals are formed then there will be salts.

And if she want topredict the certain salt then she has to perform certain reactions.

6 0
3 years ago
A sample of gas (24.2 g) initially at 4.00 atm was compressed from 8.00 l to 2.00 l at constant temperature. after the compressi
FinnZ [79.3K]
Answer: 16 atm  
Explanation: 
P1V1 = P2V2 
P2 = P1V1/V2 
=4 atm x 8.00 L/2.00L = 16 atm
5 0
3 years ago
PLEASE HELP ME ASAP!!! ILL GIVE BRAINLIEST ITS PLATO!!!
BARSIC [14]

A. Fission creates new elements from which electricity can be generated.

Hope this helps!

5 0
3 years ago
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