Answer:
yay well done good job keep going
Using p and q as variables, write formulas for calculating the probability of an offspring from a population having each of the following genotypes
The genotypes are not found in the question, but p and q can be used to calculate genotypic frequencies by using the equation p2 + 2pq + q2 = 1.
What is the Hardy–Weinberg principle?The Hardy–Weinberg principle is a model used in population genetics to estimate allele and genotypic frequencies in a population.
According to the Hardy–Weinberg principle, the sum of p + q is equal to 1, where p and q represent the dominant and recessive alleles, respectively.
The Hardy–Weinberg principle considers the absence of different evolutionary forces acting on the population.
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The formula for calculating the probability of an offspring from a population having each of the following genotypes is p2 + 2pq + q2 = 1.
What is the genotypic frequency?The number of people with a particular genotype divided by the total number of people in a population is known as genotype frequency.
p2 + 2pq + q2 = 1 is the Hardy Weinberg equation.
Thus, the formula for calculating the probability of an offspring from a population having each of the following genotypes is p2 + 2pq + q2 = 1.
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An electric motor works by converting electrical energy to mechanical energy in order to create motion.
For example,Force is generated within the motor through the interaction between a magnetic field and winding alternating (AC) or direct (DC) current.
This works because…
An electric motor works by converting electrical energy to mechanical energy in order to create motion.
For example,Force is generated within the motor through the interaction between a magnetic field and winding alternating (AC) or direct (DC) current.
This works because…
Answer : When an electric current flows through the wire in the electromagnet, a magnetic field is produced in the coil.
[tex]\:\mathsf{Hope\:this\:helps\:you!}[/tex]
Answer:
when an electric current flows through the wire in the electromagnet , a magnetic field is produced in the coil .
Explanation:
Hope it's helpful for you .........32. 2 g of ethyl alcohol is dissolved in water to make a 0. 50 L
solution. What is the molarity of the solution?
Answer:
Well, by definition,
molarity = moles of solute
volume of solution
Explanation:
Now the moles of solute are a constant. The volume of solution MAY change substantially with increasing or decreasing temperature. In some calculations molality is used in preference, which is defined by the quotien
Hope this helps!
Calculate the cell potential for the galvanic cell in which the reaction
Al(s)+Au3+(aq)↽−−⇀ Al3+(aq)+Au(s)
Al
(
s
)
+
Au
3
+
(
aq
)
↽
−
−
⇀
Al
3
+
(
aq
)
+
Au
(
s
)
occurs at 25 ∘C
25
∘
C
, given that [Al3+]=0. 00170 M
[
Al
3
+
]
=
0. 00170
M
and [Au3+]=0. 795 M
[
Au
3
+
]
=
0. 795
M
Explanation:
those to arrows between states which makes the chemical unstable right now so you need to change both those signs good luck!
how many grams of kclo3 are needed to make 30.0 grams of kcl
The mass of potassium chlorate, KClO₃ needed to produce 30 grams of potassium chloride, KCl is 49.33 grams
Balanced equation2KClO₃ —> 2KCl + 3O₂
Molar mass of KClO₃ = 39 + 35.5 + (16×3) = 122.5 g/mol
Mass of KClO₃ from the balanced equation = 2 × 122.5 = 245 g
Molar mass of Kcl= 39 + 35.5 = 74.5 g/mol
Mass of KCl from the balanced equation = 2 × 74.5 = 149 g
SUMMARY
From the balanced equation above,
149 g of KCl were obtained from 245 g of KClO₃
How to determine the mass of KClO₃ neededFrom the balanced equation above,
149 g of KCl were obtained from 245 g of KClO₃
Therefore,
30 g of KCl will be obtained from = (30 × 245) / 149 = 49.33 g of KClO₃
Thus, 49.33 g of KClO₃ are needed for the reaction
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What are some consequences of solar flares in the ocean?
Answer:
they include pretty aurora as well as hazards
Which effect can you observe when the starting K2Cr2O7is diluted? Does the position (lambda) of the maximal absorption peaks change? Describe your observations.
After the dillution of the solution, the wavelength of maximum absorption is decreased.
What is the wavelength of maximum absorption?The wavelength of maximum absorption is the wavelength at which the solution absorbs the maximum amount of light. It is usually shown as a hump in the spectrum.
When the starting concentration of the K2Cr2O7 is diluted, the wavelength of maxium absorption decreases.
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Giving brainiest and 100 points! <3
A. Cold front
The warm front symbol would be red and have circles instead of triangles.
The occluded front symbol would be purple with both, a triangle and a circle.
The stationary Front symbol is a mixture of both symbols from cold front and warm front.
hope that helps!!
Elements has physical and chemical properties most similar to silicon?
Germanium (Ge) has properties that are similar to silicon.
give the names of the 5 types of chemical reactions you are responsible for
remembering, and also give the letter model(A + C → D etc.)
Answer:
What are 5 types of chemical reactions?
1. Combination (Synthesis) reaction. A + B → AB.
2. Decomposition reaction. AB → A + B.
3. Displacement reaction. A + BC → AB + C.
4. Double displacement reaction. AB + CD → AD + BC.
5. Combustion reaction. CH4 +2O2 → CO2 + 2H2O.
Explanation:
Need help ASAP. Thank you
Answer:
Circuit 1 = ?
Circuit 2 = Parallel
Explanation:
Since circuit 1 isn't shown on the picture, it's probably a series circuit, but if circuit 1 is a box with symbols around it, then it's a series circuit. But if it has three or more horizontal lines/cables like circuit 2, then it's a parallel circuit - circuit 2 has a second horizontal line with an open switch and lamp.
Circuit 2 is a parallel circuit, as it has branches/horizontal lines (that were explained in the paragraph above).
A lot of energy is not stored in biomass, but is used for biological processes instead. Which process removes waste from the body? Give the scientific term.
We can confirm that the energy is being used for a biological process to remove waste known as excretion.
What is excretion?In biology, excretion is a metabolic process in which organisms discard waste and other by-products of metabolism. This process is essential for organisms to maintain homeostasis.
Therefore, we can confirm that energy is being used for a biological process to remove waste known as excretion.
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How many moles of Na are needed to
produce 15 moles of NaCl in the reaction
2Na + Cl2 = 2NaCl?
A conversion involving moles of one
substance to moles of another
substance.
Answer:
15 molesExplanation:
15 moles of NaCl will be obtained from 15 moles of Na.
Burning fossil fuels creates the ___________ gas carbon dioxide which increases global temperatures.
Question 4 options:
greenhouse
fossil
inert
poisonous
Answer:
green house gas
Explanation:
Which element is likely to have a high thermal conductivity? antimony carbon chlorine sodium
The element which is likely to have a high thermal conductivity among given options is sodium.
What is thermal conductivity?Thermal conductivity of any substance is define as the capability of the substance to carry heat or transfer of heat.
As we know that metals are the good conductors of heat and non-metals are bad conductors, so we exclude carbon, antimony and chlorine atom from this group as they are non-metals. And sodium atom has the thermal capability.
Hence option (4) is correct.
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Answer: Option (4) is correct
Explanation:
How did supporter of the Constitution convince opponents to approve it?
what is a water cycle
Answer:
the cycle of water and how it evaporates with energy from the sun and the droplets are stored in clouds which is condensation and when it rains or snows those are forms of precipitation
Explanation:
Answer:
it shows the continuous movement of water within the earth and atmosphere
A person observes that when the front porch of a house is wet , it is very slippery. The person adds sand to a paint can and repaints the porch’s surface.
How will the new paint make the porch safer?
Answer:
a
Explanation:
it will help stop frictoin
Constance has an apple that weighs 85,000 milligrams and a peach that weighs 0.15 kilograms. which fruit has the greater mass? choose the words and numbers to complete the statements. convert the masses of both fruits to the same unit. 85,000 milligrams is the same as choose... grams. 0.15 kilograms is the same as choose... grams. the choose... has the greater mass.
The fruit which has the greater mass is peach i.e. 150 grams.
What is mass?Mass is a quantity which is used to define that what amount of substance will occupy any space or present in the given object.
We have given,
Weight of apples = 85,000 mg
Weight of peach = 0.15 kg
To compare the quantity first we have to convert both of these units in the same unit, and we know that:
In 1 kilogram = 1000 grams
And in 1 grams = 1000 milligrams
So, we convert both the units into grams as:
85,000 mg = 85,000 / 1000 = 85 grams
0.15 kg = 150 grams
So, the mass of peach is high.
Hence, peach has the greater mass.
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Answer:
Constance has an apple that weighs 85,000 milligrams and a peach that weighs 0.15 kilograms. Which fruit has the greater mass? Choose the words and numbers to complete the statements.
Convert the masses of both fruits to the same unit.
85,000 milligrams is the same as
85
grams.
0.15 kilograms is the same as
150
grams.
The
peach
has the greater mass.tion:
H2(g) + Cl2(g) ⟶ 2HCl(g)
If 3.7 liters of Cl2 are used for this reaction, how much HCl will be formed? Assume there are enough reactants to complete the reaction and assume the reaction occurs at STP.
The volume of hydrochloric acid, HCl produced from the reaction when 3.7 L of Cl₂ are used is 7.4 L
Balanced equationH₂ + Cl₂ —> 2HCl
Since the reaction occurs at standard temperature and pressure (STP), we can say that:
From the balanced equation above,
1 L of Cl₂ reacted to produce 2 L of HCl
How to determine the volume of HCl producedFrom the balanced equation above,
1 L of Cl₂ reacted to produce 2 L of HCl
Therefore,
3.7 L of Cl₂ will react to produce = 3.7 × 2 = 7.4 L of HCl
Thus, the volume of HCl produced from the reaction is 7.4 L
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Thermohaline circulation _______. a. supplies heat to polar regions b. causes salt lake formation c. causes oxbow lake formation d. is unaffected by heat fluctuations Please select the best answer from the choices provided A B C
Thermohaline circulation that occur in the ocean part that flows across sea surface help to supply heat to polar regions.
What is Thermohaline circulation?The thermohaline circulation refer to a section and region of the ocean circulation which is majorly driven by heat gradient and freshwater that flows across the sea surface and also from the mixture of heat and salt that occur at the inside part of the ocean.
Therefore, Thermohaline circulation help to supply heat to polar regions.
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When calcium carbonate reacts with hydrochloric acid, calcium ions are transferred to the solution. Write only one net ionic equation for this reaction:
Answer:
In conclusion, the net ionic equation for the reaction between calcium carbonate and hydrochloric acid is CaCO3 solid plus two H+ aqueous react to form Ca2+ aqueous plus CO2 gas plus H2O liquid.
When calcium carbonate reacts with hydrochloric acid, calcium ions are transferred to the solution, the the net ionic equation is CaCO₃(s) + 2H⁺ → Ca²⁺ + CO₂ + OH⁻ + H⁺.
What is net ionic equation?
Net ionic equation of any reaction is the equation where all entities are written in the form of ions except spectator ions.
Given chemical reaction is:
CaCO₃(s) + 2HCl(aq) → CaCl₂(aq) + CO₂(g) + H₂O(l)
Ionic reaction for the above reaction will be written as:
CaCO₃(s) + 2H⁺ + 2Cl⁻ → Ca²⁺ + 2Cl⁻ + CO₂ + H⁺ + OH⁻
In the baove reaction Cl⁻ is the spectator ion as they are present on both sides of the given chemical reaction. So the net ionic reaction will be written as:
CaCO₃(s) + 2H⁺ → Ca²⁺ + CO₂ + OH⁻ + H⁺
Hence the net ionic reaction is CaCO₃(s) + 2H⁺ → Ca²⁺ + CO₂ + OH⁻ + H⁺.
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What factors might affect the amount of energy needed for
evaporation to occur and account for any differences between the temperatures
you observed?
6 important factors that affect evaporation are : 1. Wind assists evaporation; for example in clothes dry faster under a fan. 2. Heat assists evaporation; for example, in summer clothes dry faster than in winter.
Now have a free meme
Zinc reacts with iron (iii) chloride yielding zinc chloride plus iron
Answer:
I don't see a specific question, so I'll make a few comments and hope that answers the reason for the post.
Explanation:
Zinc(Zn) does react with iron chloride, since zinc is a more reactive metal than the iron.
When Zn is introduced to an iron (III) chloride solution, the Zn disoplaces the Fe atom in a displacement reaction.
The chemical equation of the reaction:
Zn + Fe(III)Cl3 → ZnCl3 + Fe
Energy is often realeased in this type of reaction, since the resulting chemical products have a lower energy that the reactants.
There are several metals more reactive than iron. One of the more interesting examples of a highly exothermic reaction with iron chloride (rust) is the reaction of aluminum with iron chloride. `This is highly exothermic and is labelled a thermite reaction. It provides a spectacular flame that is not enough to weld railroad tracks together.
The periodic table is arranged in order by which classification?.
Answer:
Atomic weight and valence electrons
Explanation:
These variables allow Mendeleev to place each element in a certain row and column. The table comprises 7 rows and 18 columns.
6.
The temperature of a 250.0 g ball of iron increases from 19 C to 32 C. How much heat
did the iron ball gain?
The temperature of a 250.0 g ball of iron increases from 19 C to 32 C. How much heat
did the iron ball gain?
what mass TiO2 needs to be dissolved in water to make 0.45 mL of a 0.700 M TiO2 solution
No of moles:-
[tex]\\ \tt\Rrightarrow Molarity (Volume)[/tex]
[tex]\\ \tt\Rrightarrow 0.00045(0.7)[/tex]
[tex]\\ \tt\Rrightarrow 0.000315mol[/tex]
Molar mass of TiO_2=79.866g/molMass:-
0.000315(79.866)=0.025157779gThe addition of a catalyst to a system at equilibrium will increase the rate of:.
Answer:
forward and reverse reaction rates
Explanation:
meaning the equilibrium is reached faster. So if the reaction is already at equilibrium there will be no effect on a concentration-time or moles-time graph.
In an experiment using a calorimeter, the following data was obtained:
Mass of calorimeter + water .............150g
Mass of calorimeter ……………………...100g
Final temperature of water …………… 55oC
Initial temperature of water …………. 25oC
What is the total number of Joules absorbed by the water?
Based on the data provided from the experiment using the calorimeter, the heat absorbed by water is 188.1 Joules
What is a calorimeter?A calorimeter is an equipment used in the laboratory to enthalpy change of a reaction.
A calorimeter is insulated to ensure no heat losses or gain from the surroundings.
To determine the Joules of heat absorbed by water, the formula below is used:
Heat absorbed = mass × specific heat capacity × temperature differenceSpecific heat capacity of water = 4.18 J/g.°C
Heat absorbed by water = 15 × 4.18 × (55 - 25)
Heat absorbed by water = 188.1 Joules
Therefore, the heat absorbed by water is 188.1 Joules.
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Write some of the chemical and physical properties and uses of each natural resource shown in the photos below.