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wolverine [178]
2 years ago
14

I’m so confused somebody help lol

Chemistry
2 answers:
amid [387]2 years ago
8 0
don’t know but I’ll check if I can
Marysya12 [62]2 years ago
5 0

Answer:

lol☺️☺️☺️☺️☺️☺️☺️☺️

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How is sound produced?
Oksanka [162]

Answer:

How Is Sound Produced?

Sound is a very important part of our life.

Sound helps us to communicate with another person.

Let's discuss some sounds in our daily life.

SOUND IS PRODUCED BY VIBRATIONS

The cover of the drum vibrates.

So, sound is produced when an object vibrates.

Sound is a form of energy which is produced as a result of the vibrations of an object.

Explanation:

6 0
2 years ago
Read 2 more answers
If the temperature of a gas increases, describe what should happen to the pressure of the gas. Assume the volume and amount of g
Sliva [168]
The pressure will increase with decreasing volume. if they remain constant, that is. 
4 0
3 years ago
if the reduced row echelon form of the augmented matrix for a linear system has a row of zeros, then the system must have infini
BigorU [14]

Answer:

False

Explanation:

If the row echelon form of the augmented matrix for a linear system has a row of zeros, then the there must not have infinitely many solution,

we can prove this with an example. Suppose we have an augmented matrix A for linear system with a row of zeros,

             1     0      0      1

A=         0     1       0    -2

            0     0       1    - 1

            0    0       0     0

we get

x1=1

x2=-2

x3=-1

so, system has an unique solution.

we can take inference that the given statement is wrong

7 0
3 years ago
The number of protons in an atom is called the what???
ludmilkaskok [199]
It is called the atomic number. (In physics it can also be called the proton number)
4 0
3 years ago
Write the balanced half equation of iron 2 and permanganate in a solution of acid. Show all of your work.
Aleks [24]

Answer:

5Fe⁺² + MnO₄⁻ + 8H⁺ => 5Fe⁺³ + Mn⁺² + 4H₂O

Explanation:

Fe⁺² + MnO₄⁻ +  H⁺ => Mn⁺² + Fe⁺³ +  H₂O

5(Fe⁺² => Fe⁺³ + 1e⁻)      =>                        5Fe⁺² => 5Fe⁺³ + 5e⁻

<u>MnO₄⁻ + 5e⁻ => Mn⁺²    =>   MnO₄⁻ + 8H⁺ + 5e⁻ => Mn⁺² + 4H₂O</u>

                                      =>  5Fe⁺² + MnO₄⁻ + 8H⁺ => 5Fe⁺³ + Mn⁺² + 4H₂O

6 0
2 years ago
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