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2 years ago

10. Sound is characterized in how many ways? A. 5 B. 3 C. 4 D. None of the above

Chemistry

2 answers:

Elodia [21]2 years ago

8 0

Answer:

A . 5...................

BigorU [14]2 years ago

8 0

The answer is 5 have a great day!!

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Why are scientific models important in the study of science? A. They are useful only for teaching students about science. B. The

madreJ [45]

The correct answer should be B.
The correct answer would be B.

4 0

3 years ago

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27. Sample of neon gas has a pressure of 4.1 atm and argon gas with a pressure of 3.2 atm are added to a

MrRa [10]

Answer:

Option C. 13.5 atm

Explanation:

From the question given above, the following data were obtained:

Pressure of Neon (Pₙₑ) = 4.1 atm

Pressure of Argon (Pₐᵣ) = 3.2 atm

Pressure of nitrogen (Pₙ₂) = 6.2 atm

Total pressure (Pₜ) =?

The total pressure in the container can be obtained by adding the pressure of the individual gases. This is illustrated below:

Pₜ = Pₙₑ + Pₐᵣ + Pₙ₂

Pₜ = 4.1 + 3.2 + 6.2

Pₜ = 13.5 atm

Therefore, the total pressure in the container is 13.5 atm

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3 years ago

Is h2c2o4 an Arrhenius base or arrhenius acid

maksim [4K]

Answer:
Oxalic Acid is and Arrhenius Acid.

Explanation:
According to Arrhenius Theory of acid and base, "Acid is any substance which when dissolved in water produces H⁺ Ions".

Therefore, Oxalic Acid is a diprotic substance, which is capable of donating protons in water. This acidity of oxalic acid can be dedicated to the stability of conjugate base, this stability comes from resonance of the negative charges on Oxalate ion. Below reaction shows the dissociation of Oxalic Acid into Protons and Oxalate Ion.

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3 years ago

When heated zinc carbonate decomposed to form zinc oxide and carbon dioxide gas how do you knke decomposition is complete

katrin2010 [14]

Answer:

This reaction is characteristic to metal carbonates, which decompose when heated to form the oxide of the metal and carbon dioxide gas.

Explanation:

Just did it...

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2 years ago

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Determine a massa, em kg, de um material que está contida em um volume de 18L. Sabe-se que a densidade do material é de 0,9 g/cm

suter [353]

The question in English is "Determine the mass, in kg, of a material that is contained in a volume of 18L. It is known that the material density is 0.9 g/cm 3"

Answer:

We can use a simple equation to solve this problem. 
 d = m/v

Where d is the density, m is the mass and v is the volume.

d = 0.9 g/cm³
m = ?
v = 18 L = 18 x 10³ cm³

By applying the equation,
 0.9 g/cm³ = m / 18 x 10³ cm³
m = 0.9 g/cm³ x 18 x 10³ cm³
 m = 16200 g
m = 16.2 kg

Hence, the mass of 18 L of material is 16.2 kg.

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2 years ago