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Aneli [31]
3 years ago
10

Sodium carbonate is ........salt

Chemistry
1 answer:
jok3333 [9.3K]3 years ago
5 0

False, they are two different things lol

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The reaction for the combustion of acetylene is shown. Explain why this reaction is a redox reaction by identifying the oxidatio
8_murik_8 [283]
2С⁻¹₂Н₂ + 5O⁰₂ → 4C⁺⁴O⁻²₂ + 2Н₂О⁻²

the oxidation process:
С⁻¹ - 5e⁻ = C⁺⁴   carbon is the reducing agent

the reduction process:
O⁰₂ + 4e⁻ = 2O⁻²   oxygen is the oxidizer
4 0
4 years ago
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What is the largest area of a circle that can be made from a piece of thread 25.2cm long assume no knot
Zarrin [17]

Answer:

50.2 cm^2

Explanation:

Here we want to find the largest area of a circle that can be made from a piece of thread 25.2 cm long, assume no knot .

This means that the circumference of the circle must equal to the length of the thread, so we can write:

L = 25.2 cm

And the circumference can be written as:

2\pi r = L = 25.2

where

r is the radius of the circle

Solving for r, we find the radius:

r=\frac{L}{2\pi}=\frac{25.2}{2\pi}=4.0 cm

The area of a circle is given by the formula

A=\pi r^2

So in this case, we find:

A=\pi (4.0)^2=50.2 cm^2

7 0
4 years ago
Competition occurs when
Katen [24]

Answer:

Competition occurs when <em>(A) two or more organisms need the same resource.</em>

Explanation:

I dont think it could be (B), (C) or (D) because those don't really make sense.

3 0
2 years ago
At 500°C the equilibrium constant, Kp, is 4.00 × 10–4 for the equilibrium: 2HCN(g) H2(g) + C2N2(g) What is Kp for the following
Andrews [41]

<u>Answer:</u> The value of K_p for the equation is 2.5\times 10^3

<u>Explanation:</u>

The given chemical reaction is:

2HCN(g)\rightleftharpoons H_2(g)+C_2N_2(g);K_1

The chemical equation for which the equilibrium constant is to be calculated follows:

H_2(g)+C_2N_2(g)\rightleftharpoons 2HCN(g);K_p

As, the equation is the result of the reverse of given reaction. So, the equilibrium constant for the equation will be the inverse of equilibrium constant for the given reaction.

The value of equilibrium constant for the equation is:

K_p=\frac{1}{K_1}

We are given:

K_1=4.00\times 10^{-4}

Putting values in above equation, we get:

K_p=\frac{1}{4.00\times 10^{-4}}=2.5\times 10^3

Hence, the value of K_p for the equation is 2.5\times 10^3

3 0
4 years ago
Why do chemist synthesize polymers in the lab?
Vesna [10]

Answer:Overview. Polymer chemists study large, complex molecules. They understand how the smaller building blocks (monomers) combine to form polymers, and they manipulate both their molecular structure and chemical or other processing to develop specific functional characteristics in an end product.

Explanation:

4 0
3 years ago
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