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Tpy6a [65]
3 years ago
14

Which of the following is true about incomplete dominance? Options: 1. Neither allele is completely dominant over the other alle

le. 2. The recessive trait is completely dominant. 3. The parents’ phenotypes are expressed equally in the offspring’s phenotype. 4. One parent’s phenotype is always expressed in the offspring’s phenotype
Chemistry
2 answers:
lions [1.4K]3 years ago
4 0
Hello,

<span>3. The parents’ phenotypes are expressed equally in the offspring’s phenotype.</span>
ss7ja [257]3 years ago
3 0
Hello,


Your answer would be:

3. The parents’ phenotypes are expressed equally in the offspring’s phenotype.


Plz mark me brainliest!

Hope this helps!
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If the acid dissociation constant, Ka, for an acid HA is 8 x 104 at 25°C, what percent of the acid is dissociated
Nesterboy [21]

Answer:

Percent dissociated = 3.92%

Explanation:

The equilibrium of the weak acid, HA, is:

HA ⇄ H⁺ + A⁻

<em>Where Ka = 8x10⁻⁴ is: [H⁺] [A⁻] / [HA]</em>

<em> </em>

As both H⁺ and A⁻ comes from the same equilibrium we can write the concentrations of the species as follows:

[H⁺] = X

[A⁻] = X

[HA] = 0.50M - X

<em>Where X is reaction coordinate</em>

<em />

Replacing:

8x10⁻⁴ = X² / 0.50-X

4x10⁻⁴ - 8x10⁻⁴X - X² = 0

Solving for X:

X = -0.02M. False solution. There is no negative concentrations

X = 0.0196M. Right solution.

Replacing:

[A⁻] = 0.0196M

Percent of the acid that is dissociated is:

[A⁻] / [HA]₀ * 100

<em>[HA]₀ is its initial concentration = 0.50M</em>

0.0196M / 0.50M * 100

<h3>Percent dissociated = 3.92%</h3>
8 0
3 years ago
Definition of Magnetism <br>​
grigory [225]

Answer:

Magnetism is the force of attraction on a magnetic substance by a magnet.

Explanation:

Please mark as brainliest.

3 0
3 years ago
How to make half equations
padilas [110]
In a chemical reaction equation.. There must be redox reaction taking palce.. So oxidation and reduction reactions will be happening on both sides of the equation.. You can separate the oxidation and reduction equations in halves. . So there will be one half oxidation equation and the other half reduction equation of the reaction.
8 0
3 years ago
Will all cars have roughly the same amount of force available
melisa1 [442]
<span>No, all cars will not have the same amount of force available to them. The majority of a car's force comes from the engine of the vehicle. All engines do not have the same amount of power in that some have larger amounts of force and some have smaller amounts of force. This will result in cars having different amounts of available force.</span>
5 0
3 years ago
how many grams of magnesium cyanide would you need to add to 275 ml of water to make a 0.075 molal solution
slega [8]

The mass of magnesium cyanide needed to prepare the solution is 1.57 g

We'll begin by calculating the number of mole of Mg(CN)₂. This can be obtained as follow:

Volume = 275 mL = 275 / 1000 = 0.275 L

Molarity of Mg(CN)₂ = 0.075 M

<h3>Mole of Mg(CN)₂ =? </h3>

Mole = Molarity x Volume

Mole of Mg(CN)₂ = 0.075 × 0.275

Mole of Mg(CN)₂ = 0.020625 mole

  • Finally, we shall determine the mass of Mg(CN)₂

Mole of Mg(CN)₂ = 0.020625 mole

Molar mass of Mg(CN)₂ = 24 + 2(12 + 14) = 76 g/mol

<h3>Mass of Mg(CN)₂ =? </h3>

Mass = mole × molar mass

Mass of Mg(CN)₂ = 0.020625 × 76

Mass of Mg(CN)₂ = 1.57 g

Therefore, 1.57 g of Mg(CN)₂ is needed to prepare the solution

Learn more: brainly.com/question/3126258

3 0
2 years ago
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