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NikAS [45]
3 years ago
11

HELP WHAT IS THE ANSWER TO ANY OF THESE !!!

Chemistry
2 answers:
photoshop1234 [79]3 years ago
8 0
Number 4 is
-Oxidation occurs at the anode, while reduction occurs at the cathode. Recharging a battery involves the conversion of electrical energy to chemical energy. During recharging, there is movement of electrons from an external power source to the anode, and on the other side electrons are removed from the cathode.
maks197457 [2]3 years ago
7 0

Answer:

3. They stop producing because they eventually run out of the anode metal so the reaction can not go on.

4. They reverse the flow of electrons when the voltage is above what it needs to go normally.

Explanation:

3. as the reaction occurs the cathode is gaining electrodes as the anode loses them so it gets to a point where the anode and shrunk down so much that it can't give off anymore electrons and that is when the battery stops.

4. lets say you have a cell with a voltage of 1.05 then you would need a voltage higher than that to make it go in reverse and recharge itself.

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Express scientific notation 12 thousandth
Sever21 [200]
12 thousandth is the same as 0.012, so to put something in scientific notation you move the decimal point to the left or right until it is between the first two numbers. So:

Moving the decimal for 0.012 to between the first two numbers, we get: 1.2

For every move of the decimal place to get there, we divide/multiply by 10 each time. In this case, we multiply by 10 each time.

To get to 1.2, we had to move the decimal 2 times, so the answer is 1.2×10^-2

When you move the decimal to the right, the value of the power is negative, and when you move it to the left it is positive.
4 0
3 years ago
Carmen lives on a farm in an area far away from the city and surround by forests. New families are starting to move into the are
lidiya [134]

Answer:

Carmen and her family would not have to interest crops where the land has very little rapid recovery after one always, or even in those productions where their neighbors produce the same, the ideal would be the cultivation of trees to make wood, or crops where the harvest is fast and the land can regenerate quickly.

Explanation:

Within the fields, agricultural competition is very important, since it tends to happen within commerce or in rural areas, generating diversity of productions among farmers.

7 0
3 years ago
Which of the following formulas has the smallest percent
KiRa [710]

Answer: CF4

Explanation:

Calculate the molar mass of each compound. Divide the molar mass of Carbon by the molar mass of each compound, then multiply the answer by 100 to get the percentage.

CF4= 12+(19X 4)

=12+76= 88 g/mol

%C= 12/88 x 100= 13.64%

CO2= 12+(16 X 2)

12+32= 44 G/MOL

%C= 12/44 x 100= 27.3%

CH4= 12+ (1 X4)

=12+4

=16 G/MOL

%C= 12/16  X 100= 75%

C204

(12X2) + (16X4)

24+64

= 88 g/mol

%C= 24/88 x 100

= 27.3%

5 0
3 years ago
Conversion of 35 mL to ML
Orlov [11]

Answer:

1000ml=1l

35ml. = ?

Explanation:

35×1/1000

0.035litres

5 0
3 years ago
A metal pot is filled with water and placed on top of a stove. As the stove top heats up, the water begins to boil and steam can
Darina [25.2K]
Based on the scenario, the matter escaping from the pot is an example of an : C. Open system because heat and matter are both able to enter or leave the system

The key word here is 'steam can be seen escaping from the pot' , which indicate that the matter and heat able to leave the system after it's entered.

hope this helps
3 0
3 years ago
Read 2 more answers
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