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Makovka662 [10]
3 years ago
10

A widow's peak is a V-shaped area of the hairline in the center of the forehead. The allele for having a widow's peak is dominan

t to the allele for not having a widow's peak.
If two parents do not have widow's peaks, what is the probability that their child will have a widow's peak?
Chemistry
2 answers:
Flauer [41]3 years ago
8 0
<span>None. Since it is dominant, both would have to show it to pass in on.</span>
Aleonysh [2.5K]3 years ago
7 0

Answer:

0%

Explanation:

A widow's peak is a V-shaped point in the hairline in the center of the forehead. Hair growth on the forehead is suppressed in a bilateral pair of periorbital fields. Without a widow's peak, these fields join in the middle of the forehead so as to give a hairline that runs straight across.

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Answer:

Ans: 2

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The concentration of reactants and the concentration of products are constant.  

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Which of the following measurements is equal to 150 dL?
MrRissso [65]
This is a case of metric system of measurements. The scale of the metric system only differs by a factor of 10. The scale (from greatest to least) is kiloliter, hectoliter, dekaliter, liter, deciliter, centiliter and milliliter. If the unit is 150 dL, and you want to find the equivalent dkL measurement, just move the decimal point 2 decimals places to the left (just follow the scale). The same procedure is done for the other metric units.

150 dL = 1.5 dkL
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Given the following reaction: 2O3----&gt;3O2. DeltaH of reaction=-286kJ/mol
soldi70 [24.7K]

The enthalpy of reaction (ΔH) of the above chemical reaction is equal to -143 kJ/mol.

<h3>What is a chemical reaction?</h3>

A chemical reaction can be defined as a chemical process that involves the continuous transformation (rearrangement) of the ionic, atomic or molecular structure of a chemical element by breaking down and forming chemical bonds, in order to produce a new chemical compound while new bonds are formed.

<h3>What is a balanced equation?</h3>

A balanced chemical equation can be defined as a chemical equation wherein the number of atoms on the reactant (left) side is equal to the number of atoms on the product (right) side.

Next, we would write the properly balanced chemical equation for this chemical reaction:

                                    3/2O₂ -----> 2/2O₃

Therefore, the enthalpy of reaction (ΔH) of the above chemical reaction is half the enthalpy of reaction (ΔH) of the initial chemical reaction:

Enthalpy of reaction (ΔH) = ½ × -286 kJ/mol

Enthalpy of reaction (ΔH) = -143 kJ/mol.

Read more on enthalpy here: brainly.com/question/12993630

#SPJ1

4 0
1 year ago
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