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ale4655 [162]
3 years ago
10

Humans are not the only animals that pollute the air.

Chemistry
2 answers:
pychu [463]3 years ago
7 0

Answer:

TRUE

Explanation:

Humans and many animals are responsible for air pollution. Even natural processess such as excreting feces results in release of methane, CO2 etc which contribute to air pollution

brilliants [131]3 years ago
4 0
True. dung from animals such as cows can also cause pollution.
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What is a cell? ‍♀️
Alexandra [31]

Answer:

Cell is defined as the smallest unit or basic unit of life.

3 0
2 years ago
Read 2 more answers
what is the specific latent heat of fusion for a substance that takes 550 kj to melt 14 kg at 262 k? brainly answers
Ket [755]

q = mL

L = q/m = 550 kJ/14 kg = 39 kJ/kg

3 0
3 years ago
what is the pH of a solution that has a hydronium ion concentration 100 times greater than a solution with a pH of 4
Anna71 [15]

Answer:

2

Explanation:

First, find the hydronium ion concentration of the solution with a pH of 4.

[H₃O⁺] = 10^-pH

[H₃O⁺] = 10⁻⁴

[H₃O⁺] = 1 × 10⁻⁴

Next, multiple the hydronium ion concentration by 100 to find the hydronium ion concentration of the new solution.

[H₃O⁺] = 1.0 × 10⁻⁴ × 100 = 0.01

Lastly, find the pH.

pH = -log [H₃O⁺]

pH = -log (0.01)

pH = 2

The pH of a solution that has a hydronium ion concentration 100 times greater than a solution with a pH of 4 is 2.

Hope this helps.

4 0
3 years ago
A solid sample of a compound a liquid sample of the same compound are each tested for elecrical conductivity.Which test conclusi
nignag [31]
  • An ionic compound will not conduct electricity as a solid.
  • It will conduct electricity when melted.
  • Some ionic compounds are soluble. Their solutions in water also conduct electricity.
<h3>Explanation</h3>

A substance should contain charged particles that are free to move around in order to conduct electricity.

Ionic compounds contain an ocean of ions. They carry either positive or negative charges. Attractions between them hold them in a rigid lattice under the solid state. Those ions are unable to move. The ionic compound can't conduct electricity.

Melting the ionic compound will break the lattice. Those ions are now free to move to conduct electricity. Dissolving the compound in water will also free the ions. As a result, those solutions will also conduct electricity.

Conductivity under different states distinguishes between ionic compounds, molecular compounds, and metals.

  • Ionic compounds conduct electricity when melted but not as a solid.
  • Molecular compounds have no charged particles. They do not conduct electricity even when melted.
  • Valence electrons in metals are free to move both when the metal is a solid and when it is melted. Metals conduct electricity under both solid and liquid states.
4 0
3 years ago
She introduced 0.174 moles of nobr(g) into a 1.00 liter container, she found the equilibrium concentration of br2(g) to be 1.79×
Nastasia [14]
The equilibrium reaction is

2 NOBr ⇄ 2 NO + Br₂

The initial molarity of NOBr is 0.174 mol/1 L = 0.174 M. Let's apply the ICE approach which stands for Initial-Change-Equilibrium.

                   2 NOBr ⇄ 2 NO + Br₂
I                     0.174        0        0
C                      -2x         +2x    +x
----------------------------------------------------
E                 0.174-2x      2x      x

Since E for Br₂ is 1.79*10⁻² M, then that means x = 1.79*10⁻² M. We can compute E for the other compounds.

E for NOBr = 0.174 - 2(1.79*10⁻²) = 0.1382 M
E for NO = 2(1.79*10⁻²) = 0.0358 M

The expression for Kc according to the reaction is:
Kc = [NO]²[Br₂]/[NOBr]²
Kc = [0.0358]²[1.79*10⁻²]/[0.1382]²
<em>Kc = 1.2×10⁻³</em>
6 0
3 years ago
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