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RoseWind [281]
3 years ago
14

Witch equations are correctly balanced.

Chemistry
1 answer:
IrinaK [193]3 years ago
8 0

Answer:

2nd and last.

Explanation:

In the first equation,the number of hydrogen atoms is not balanced and in the third,the number of aluminum atoms is not balanced.

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The question is in the attachment
yKpoI14uk [10]

Answer:

About redox reaction which of the given statements are true?

Explanation:

Redox reaction is the one in which both oxidation and reduction reactions take place simultaneously.

For example:

C(s)+O_2(g)->CO_2(g)

In this reaction, carbon undergoes oxidation and oxygen undergoes reduction simultaneously.

During this reaction, mutual exchange of electrosn take place between the oxidant and the reductant.

Among the given options,

Option B. electrons are transferred

and

option C.They include both oxidation and reduction takes place are the correct answers.

7 0
3 years ago
SHOW WORK AND INCLUDE UNITS
Ber [7]

Answer:

36365.4 Joules

Explanation:

The quantity of Heat Energy (Q) released on cooling a heated substance depends on its Mass (M), specific heat capacity (C), and change in temperature (Φ)

Thus, Q = MCΦ

Since, M = 45.4 g

C = 3.56 J/g°C,

Φ = 250°C - 25°C = 225°C

Q = 45.4g x 3.56J/g°C x 225°C

Q= 36365.4 Joules

Thus, 36365.4 Joules of heat energy is released when the lithium is cooled.

6 0
3 years ago
A motor “runs” when what is produced by a spinning magnet ?
alex41 [277]

Answer:

electrical energy

Explanation:

its just right

7 0
3 years ago
8. An ion with 5 protons, 6 neutrons, and a charge of 3+ has an
Slav-nsk [51]

Atomic number = The number of proton in an atom or ion so the right answer is 5!

5 0
3 years ago
Proteins carry out cellular functions. where do they get instructions?
Alex787 [66]
Photosynthesis and cellular respiration go hand and hand. Remember the two equations are just a reverse of the opposite equation. 

Cellular Respiration-
C₆H₁₂O₆ + 6O₂ (Yeilds or Makes) 6CO₂ + 6H₂O + ATP (Or Energy)

Photosynthesis-
6CO₂ + 6H₂O + ATP (Or Sunlight) (Yeilds or Makes) C₆H₁₂O₆ + 6O<span>₂  
</span>
<span>When a plant goes through photosynthesis it produces oxygen as a waste product, which you should know is what animals use to breathe, well when animals use oxygen in the process, they also make a waste product which happens to be Carbon Dioxide, which a plant uses to make glucose during photosynthesis, so if we didin't have one we wouldn't have the other.

ANSWER: Cells get their instruction from the formula.</span>
6 0
3 years ago
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