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love history [14]
3 years ago
9

Q1 and Q1 represent ?

Chemistry
1 answer:
TiliK225 [7]3 years ago
8 0

Answer:yes they do represent

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6. The pOH of a solution of NaOH is 11.30. What is the [H+<br><br> ] for this solution?
sashaice [31]

Answer:

The [H⁺] for this soluton is 2*10⁻³ M

Explanation:

pH, short for Hydrogen Potential and pOH, or OH potential, are parameters used to measure the degree of acidity or alkalinity of substances.

The values ​​that compose them vary from 0 to 14 and the pH value can be directly related to that of pOH by means of:

pH + pOH= 14

In this case, pOH=11.30, so

pH + 11.30= 14

Solving:

pH= 14 - 11.30

pH= 2.7

Mathematically the pH is the negative logarithm of the molar concentration of the hydrogen or proton ions (H⁺) or hydronium ions (H₃O):

´pH= - log [H⁺] = -log [H₃O]

Being pH=2.7:

2.7= - log [H⁺]

[H⁺]= 10⁻² ⁷

[H⁺]=1.995*10⁻³ M≅ 2*10⁻³ M

<u><em>The [H⁺] for this soluton is 2*10⁻³ M</em></u>

8 0
4 years ago
hydrogen combines with sulfur much like hydrogen combines with oxygen draw an electron dot diagram showing hydrogen combined wit
sertanlavr [38]

hydrogen combines with sulfur is H2S

<span> hydrogen combines with oxygen H2O</span> <span>Hydrogen sulfide<span> <span>is the </span></span>chemical compound<span> <span>with the </span></span>formula <span>H<span>
2S</span></span>. It is a colorless gas<span> <span>with the characteristic foul odor of rotten </span></span>eggs<span>; it is heavier than air, very poisonous, corrosive, flammable, and explosive; properties shared with the denser </span>hydrogen chalcogenides</span>

<span> </span>

6 0
3 years ago
When mantle rocks near the radioactive core are heated, they become less dense than the cooler, upper mantle rocks. These warmer
Delicious77 [7]

C) convection cells (currents)

Explanation:

The movement of warmer cooler mantle rocks creating a circulation within the mantle is called a convection cell. These are the forces that drives the plate over asthenosphere.

  • Convection is form of heat transfer predominant in liquids and gases.
  • The mantle is molten and heated from heat within the core and the decay of radioactive bodies.
  • Hot bodies are light and tend to be more buoyant. This causes warm mantle to rise to the surface.
  • The cold part are denser and heavier, they sink in the mix.
  • This creates pockets of circulation pattern within the mantle called convection cells.

Learn more:

Lithosphere brainly.com/question/9582362

#learnwithBrainly

3 0
3 years ago
Which phrase accurately describes the location of Africa? O mostly in the eastern hemisphere mostly south of the Tropic of Capri
dimaraw [331]

Answer:

mostly in the eastern hemisphere mostly south of the Tropic of Capricorn

Explanation:

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Kobotan [32]
Don’t know this oneeeeeeeeeeeee
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