please help!! my grades dying
15 points

There are 50% chances of the offspring being heterozygous for tall plant.

Crossing homozygous short tt plants with heterozygous tall Tt plants yields short to tall plants in a 1:1 ratio. So the seed has a 50% chance of growing into a large plant.

Under such conditions, the dominant allele is always expressed and the recessive allele is masked. In this example, the size allele is dominant, so the plant grows.

About 80% of an individual's height is determined by differences in their inherited DNA sequences.

Learn more about heterozygous visit:

brainly.com/question/29710301

#SPJ4

Answer:

about 12 cm

Explanation:

Considering the frequency of 2,450 MHz, the wavelength of microwave oven radiation is about 12 cm and the quantum energy of a microwave photon is about 1 x 10-5 eV.

The hypochlorite ion (ClO⁻) will act as a weak base in water due to its ability to accept protons and form the weak acid HClO, while the other options do not exhibit such basic properties.

Among the given options, the ion that will act as a weak base in water is c) ClO⁻ (hypochlorite ion). A weak base is a substance that does not fully dissociate in water and has a relatively low pH when compared to a strong base. In contrast, strong bases such as OH⁻ (hydroxide ion) fully dissociate in water, significantly increasing the pH.

NO₃⁻ (nitrate ion) and Cl⁻ (chloride ion) are the conjugate bases of strong acids (HNO₃ and HCl, respectively), and they are considered neutral in water as they do not readily accept protons (H⁺ ions) to form their respective acids. Thus, they do not exhibit basic properties.

The ClO⁻ ion is the conjugate base of a weak acid, HClO (hypochlorous acid), which partially dissociates in water. As a result, ClO⁻ ions can accept protons to form HClO, demonstrating weak basic behavior. This process does not occur to the same extent as with a strong base, so the pH change is not as dramatic.

Learn more about hypochlorite ion here:-

https://brainly.com/question/31560609

#SPJ11

Answer:

0.1

Explanation:

If the value for the equilibrium constant, K, is much greater than 1, it means that the equilibrium lies far to the right, towards the products. In other words, the concentration of products is much higher than the concentration of reactants in the equilibrium mixture.

Therefore, the equilibrium mixture would contain mostly products and only a small amount of reactants, if the value of the equilibrium constant is much greater than 1.

The relationship between a reaction's products and reactants with regard to a certain unit is expressed by the equilibrium constant, K. This article introduces the mathematics needed to determine the partial pressure equilibrium constant as well as how to formulate expressions for equilibrium constants.

Learn about equilibrium constant here https://brainly.com/question/19340344

#SPJ1

Answer:

(1)N2+3F2 -> 2NF3

Explanation:

This problem can be done a few ways.

This reaction is a redox reaction, so it will be treated as such:

First, we count the number of N atoms there are on both sides
the left has 2 and the right has 1. The LCM of 2 and 1 is 2, so the lcm of nitrogen is 2.
Similarly, the lcm of fluorine is 6, since the lcm of 2 and 3 is 6.

The LCM is also the number of atoms that there are on both sides, so there are 2 nitrogens and 6 fluorines on both sides, which isn't hard to distribute.

Here's another example:
P4 + O2 -> P2O5
lcm of 4 and 2 is 4, so there are 4 Phosphoruses on both side
Lcm of 2 and 5 is 10, so there are 10 oxygen atoms on both side

Once we know the total amount of atoms on both side, distributing them isn't very hard

(P4+5O2-> 2P2O5)

Answer:

125g × 1 mol/16 grams = 7.81 × avogadros #

The endothermic and exothermic energy changes associated with ionic bonds and relate them to bond strength is if energy is аbsorbed during а chemicаl reаction, then the reаction is endothermic аnd if energy is reаleаsed during а chemicаl reаction, then the reаction is exothermic.

An exothermic process releаses heаt, cаusing the temperаture of the immediаte surroundings to rise. Аn endothermic process аbsorbs heаt аnd cools the surroundings.

When ionic compounds аre formed, energy is releаsed which is exothermic energy. If the energy releаsed during bond formаtion is reаbsorbed, the ionic bond holding the positive ions аnd negаtive ions together will breаk аpаrt which is endothermic energy.

For more information about endothermic and exothermic energy refers to the link: https://brainly.com/question/22909502

#SPJ11

The number of moles of NaCl contained in 5 L of a 2.2 M solution is 11 moles

The molarity of a solution gives a relationship between volume and mole of substance. The mathematical relationship is given below:

Molarity = number of mole / Volume

With the above formula, we can determine the number of mole of NaCl in the solution. Details below:

Molarity = number of mole / Volume

Cross multiply

Number of mole = molarity × volume

Number of mole of NaCl = 2.2 × 5

Number of mole of NaCl = 11 moles

Thus, the number of moles of NaCl is 11 moles

Learn more about number of mole:

https://brainly.com/question/20522500

#SPJ1

Answer:

3.01 * 10 ^ 23 atoms of Pt

Explanation:

1 mole of Pt contains 6.02 * 10 ^ 23 atoms of Pt

195.084 g of Pt has  6.02 * 10 ^ 23 atoms of Pt  

97.6 g = .5 moles so  

97.6 g of Pt has 3.01 * 10 ^ 23 atoms of Pt

The 97.6 grams of platinum contains \(3.011\times 10^{23}\) atoms.

Given:

The mass of platinum = 97.6 grams

To find:

The number of platinum atoms in 97.6 grams.

Solution:

Mass of platinum = 97.6 g

Moles of platinum =\(\frac{97.6g}{195.084 g/mol}=0.500 mol\)

According to the mole concept:

1 mole = Avogadro Number = \(N_A=\) \(6.022\times 10^{23} atoms/ molecules/ions\)

The number of platinum atoms in 0.500 moles of platinum:

\(=0.500\times 6.022\times 10^{23} atoms\\\\=3.011\times 10^{23} atoms\)

The 97.6 grams of platinum contains \(3.011\times 10^{23}\) atoms.

Learn more about the mole concept here:

/brainly.com/question/7287712?referrer=searchResults

Answer:

water

Explanation:

because it's capable of dissolving more substances

Answer:

B. water  It can dissolve more substances

Explanation:

[Ar]4s23d6 the electron configuration of the metal ion in Fe(NO3)3.

The noble gas krypton, which is isoelectronic with As arsenic 3 ion (As3), is isoelectronic with [Ar]3d104s2sp6 because it has gained three electrons.

Transition-metal ions are frequently referred to as having dn configurations because their valence electrons are mostly found in d orbitals. For instance, it is claimed that the Co3+ and Fe2+ ions have a d6 configuration.

The number of protons in the atomic nuclei of arsenic, abbreviated As, is 33. 33 electrons would likewise be present in a neutral As atom.

learn more about electron configuration

https://brainly.com/question/26084288

#SPJ4

Period 2 and period 3 elements do not have the same trend in terms of their electronic configurations. Period 2 elements have 2 electron shells and period 3 elements have 3 electron shells.

The elements in each period have one more electron shell than the elements in the previous period. As a result, the elements in each period have a different number of valence electrons, which affects their chemical properties.

As the period increases, the elements in the period become more metallic. The elements of Period 2 are generally non-metals, and the elements of Period 3 are generally metals.

Find out more on period 2 and 3 elements here: https://brainly.com/question/18878801

#SPJ1

Answer:

The climate would change rapidly with little rain and a intervention in the seasons.

Explanation:

The Gulf Stream is responsible for keeping millions of miles of land flourishing and lively. If it cooled the climate would change, resulting in dying fields and crops, ultimately changing the elements of the four seasons we know today.

(I hope this answer helps)! /:

The formation of 1-bromobutane involves the following reaction mechanism: 1. Nucleophilic substitution (SN2): Butanol reacts with a bromide ion (Br-) to form 1-bromobutane and a hydroxide ion (OH-). Butanol + Br- → 1-bromobutane + OH-

The formation of 1-butene and di-n-butyl ether are side reactions in this process:
1. Elimination (E2) reaction: Butanol undergoes an elimination reaction to form 1-butene and water.
Butanol → 1-butene + H2O

2. Williamson ether synthesis: Two butanol molecules react with each other in the presence of a base, forming di-n-butyl ether and water.
2 Butanol + Base → di-n-butyl ether + H2O + Base

It's necessary to remove water before weighing the 1-bromobutane because water could alter the measured weight, leading to inaccurate results. Water can also promote side reactions like the formation of di-n-butyl ether, which could further impact the yield and purity of the desired product, 1-bromobutane.

More on Nucleophilic substitution: https://brainly.com/question/28787378

#SPJ11

Answer:

0

Explanation:

Positive Change of 2 cancels the negative charge of 2

To see the number of atoms of an element in a given molecule we need to multiply stoichiometry to the number that is written on the foot of the element that is stoichiometry. Therefore, the overall charge of atom that contains 2 electron and 2 proton is zero.

Atom is the smallest particle of any element, molecule or compound. Atom can not be further divided. Atoms contains nucleus in its center and electron that revolve around the atom in fixed orbit.

In the nucleus, proton and neutron are present. Electron has -1 charge while proton has +1 charge. Neutron is neutral that is it has no charge. So overall the charge of nucleus is due to only proton, not by neutron. The overall charge of atom that contains 2 electron and 2 proton is zero.

Therefore, the overall charge of atom that contains 2 electron and 2 proton is zero.

To know more about atom, here:

https://brainly.com/question/13518322

#SPJ2

To eject electrons with 2.2 x 10^-19 J of energy is 1.42 x 10^15 Hz.

what is the photon frequency needed? Chromium metal has a binding energy of 7.21 x 10^-19 J for certain electrons. So, the energy needed to eject the electrons is: Energy needed = Binding energy + Ejected electrons' energy = 7.21 x 10^-19 J + 2.2 x 10^-19 J = 9.41 x 10^-19 JNow, we know the energy needed to eject electrons is 9.41 x 10^-19 J. And we know that the energy of a photon is given by E = hν, where h is Planck's constant and ν is the frequency of the photon. To find the photon frequency needed, we can use the equation:

E = hνν = E/hν = (9.41 x 10^-19 J) / (6.63 x 10^-34 J·s)ν = 1.42 x 10^15 Hz

Hence, the photon frequency needed to eject electrons with 2.2 x 10^-19 J of energy is 1.42 x 10^15 Hz.

Learn more about photon frequency  at brainly.com/question/30107923

#SPJ4

The pH of methylene blue stain can affect the staining of bacteria. When prepared as a basic stain, methylene blue binds to acidic components of bacterial cells, resulting in a blue color. When prepared as an acidic stain, methylene blue binds to basic components of bacterial cells, resulting in a red or pink color.

Methylene blue is a common biological stain that is used to visualize bacterial cells under a microscope. The pH of the stain can affect how it interacts with bacterial cells and how the cells appear when viewed under a microscope.

When prepared as a basic stain, methylene blue has a positive charge and binds to acidic components of bacterial cells, such as nucleic acids and acidic polysaccharides.

This results in a blue coloration of the cells, making them easier to visualize and differentiate from other cells or debris on the slide.

On the other hand, when methylene blue is prepared as an acidic stain, it has a negative charge and binds to basic components of bacterial cells, such as proteins and basic polysaccharides.

This results in a red or pink coloration of the cells. The choice of stain depends on the type of bacteria being visualized and the specific components of the cells that need to be highlighted.

In general, basic stains like methylene blue are more commonly used for bacterial staining due to their ease of use and consistent results.

Visit here to learn more about Methylene:  

brainly.com/question/30456286

#SPJ11

Answer: Soils are formed through the interaction of five major factors: time, climate, parent material, topography and relief, and organisms.

Soil structure affects plant growth in many, often surprising, ways. The most obvious effects are on root growth, which is strongly inhibited by hard soil, and which in turn influences the ability of the root system to extract adequate water and nutrients from the soil.

Explanation:

https://www.publish.csiro.au/sr/pdf/SR9910717

This is where I gather some info.  

Answer:

A

Explanation:

The answer to this question is A. Both ripening and spoiling are chemical reactions.

Spoiling is a chemical reaction because spoiled food has bad smell and taste and it changes colour too.

Ripening of fruits is a chemical change. For example the colour could change as well as the texture.

Answer:

option a) chemical reaction, chemical reaction.

Explanation:

Changes in which new substances with different properties are formed are called chemical changes. Cooking of food, burning of substances are chemical changes as entirely new substances are formed. Burning of a candle wax releases carbon dioxide and water vapour (new substances). in here ripening and spoiling is a change that cannot be reversed which makes it a chemical change.

To produce 180 millilitres of a saline solution of the same concentration, we need 1.2 milligrams of salt.

It is given that a ratio of 0.5 milligrams of salt is present in 75 millilitres of solution. Let us assign a variable x to the amount of salt present in 180 millilitres of saline solution.

To maintain the same concentration we can use the method of cross-multiplication:

The following equation can be used to determine the value of x:

0.5 mg / 75 ml = x mg / 180 ml

( 0.5 × 180) / 75 = x mg

x mg = 90 / 75

Hence x is approximately equal to 1.2 mg.

To learn more about the saline solution:

https://brainly.com/question/29402636

Answer:

The Aufbau Principle

Explanation:

In the ground state of an atom or ion, electrons fill atomic orbitals of the lowest available energy level before occupying higher-energy levels.

Answer:

Aufbau principle

Explanation:

edge 2021

If a bicycle pump contains 0.650 L of helium at 101 kpa. if the pump is closed, then the pressure is required to change the volume to 0.250 L is 262.6 kpa.

This can be calculated by using the boyle's law.

Boyle's law states that at constant temperature the pressure is directly proportional to the volume of the gas.

P1V1 = P2V2

Given,

P1 = 101 kpa

V1 = 0.650 L

V2 = 0.250 L

By substituting all the values, we get

101 × 0.650 = P2 × 0.250

P2 = 262.6 kpa

Thus, we concluded that If a bicycle pump contains 0.650 L of helium at 101 kpa. if the pump is closed, then the pressure is required to change the volume to 0.250 L is 262.6 kpa.

learn more about boyle's law:

https://brainly.com/question/1437490

#SPJ10

Answer:

A pH scale is used to measure acidity.

Answer:

How acidic or alkaline a substance is.

Explanation:

1 = Strong acid e.g. Stomach acid

7 = Neutral e.g. Water

14 = Strong alkaline e.g. Sodium hydroxide

Answer: 0.5 M

Explanation:

molarity is defined as \(\frac{mol}{L}\)

in the question, we are already given the amount of moles of Ba+ and L of water. we can just plug it into the equation, \(\frac{1}{2}\).

thus, the molarity will be 0.5 M

hope this helped! ♡

Answer:

hey,the answer is d, 1:2

Answer: D

Explanation:

The equation shows that one mole of nitrogen reacted with three moles of hydrogen to produce two moles of ammonia.

Answer:

All waves of the electromagnetic spectrum have a speed of 3 × 10⁸ ms⁻¹

1000 grams of nitroglycerin 2% ointment should be mixed with the ointment base to obtain 100 grams of an ointment with a concentration of 0.2%.

To determine the amount of nitroglycerin 2% ointment needed to mix with an ointment base to obtain 100 grams of an ointment with a concentration of 0.2%, we can use the concept of a proportion.

Let's set up the proportion:

(grams of nitroglycerin 2% ointment) / 2% = 100 grams / 0.2%

To solve for the grams of nitroglycerin 2% ointment, we can cross-multiply and then divide:

(grams of nitroglycerin 2% ointment) = (2% / 0.2%) * 100 grams

Calculating the right side of the equation:

(grams of nitroglycerin 2% ointment) = (2 / 0.2) * 100 grams

                                = 10 * 100 grams

                                = 1000 grams

To know more about nitroglycerin

https://brainly.com/question/32896185

#SPJ11

Answer:

Final pressure = 1848.36 Torr

Explanation:

Given that,

Initial volume, V₁ = 5.2 L

Initial pressure, P₁ = 782 Torr

Initial volume, V₂ = 2.2 L

We need to find the final pressure. We know that the relationship between pressure and volume is given by :

\(P\propto \dfrac{1}{V}\\\\\dfrac{P_1}{P_2}=\dfrac{V_2}{V_1}\\\\P_2=\dfrac{P_1V_1}{V_2}\\\\P_2=\dfrac{782\times 5.2}{2.2}\\\\P_2=1848.36\ torr\)

So, the final pressure is equal to 1848.36 Torr.