Identify the rate-determining step. Question 6 options: always the second step always the last step the fast step the faster step the slowest step

Answer:

C

Explanation:

The option C question has not a specific answer related to pure science.

The question cannot be answered by science is Why should endangered animals be protected? . Option C is correct.

An endangered species or the animals or plants which are at the risk of the extinction is a type of organism or animal or plant  that is threatened by extinction.

Species of some animals and plants become endangered for two main reasons first one is  loss of habitat or living due to destruction of forest and loss of genetic variation due to some evolution. An species is a type of organism or plant or animal that is threatened by extinction.

Therefore, question cannot be answered by science is Why should endangered animals be protected? . Option C is correct.

Learn more about endangered animals, here:

https://brainly.com/question/607475

#SPJ6

On a cold day, Matthew takes somewhat longer to hear the train whistle than on a sunny summer day.

Temperature influences sound speed, with greater temperatures resulting in quicker sound speed. At 38° C, the speed of sound is roughly 347 m/s, whereas at -4° C, it is approximately 331 m/s

To calculate the time it takes for Matthew to hear a train whistle, use the formula:

time = distance / speed

On a warm summer day at 38° C:

time = 900 m / 347 m/s = 2.59 s

On a cold day at -4° C:

time = 900 m / 331 m/s = 2.72 s

Therefore, it takes slightly longer for Matthew to hear the train whistle on a cold day compared to a warm summer day.

Find out more on time here: https://brainly.com/question/4931057

#SPJ1

Answer:

a

Explanation:

Answer:

Im pretty sure it's B, almost 100% sure

Explanation:

Answer:

1 mole is equal to 1 moles Zinc, or 65.38 grams.

Explanation:

Could i have branliest, heart and 5 stars thanks!

Answer:

the answer is D. the molecules of a gas are small compared to the distance between them

Explanation:

The postulates of Kinetic-Molecular Theory are as follows:

The molecules of a gas move rapidly, constantly, and in straight lines.

The average kinetic energy of the molecules of a gas is directly proportional to the Kelvin temperature.

A gas exerts pressure because the gas molecules repel each other.

The molecules of a gas are small compared to the distance between them1.

Therefore, “the molecules of a gas are small compared to the distance between them” is not a postulate of Kinetic-Molecular Theory

Answer

Explanation

The reaction between Ca(OH)₂ and HCl is a neutralization reaction. Ca(OH)₂ is a base and HCl is an acid, their reaction will produce salt and water.

The balanced chemical equation of the reaction is shown below:

Approximately 14.25 grams of silver chloride can be prepared by the reaction of 100 ml of 0.20 M silver nitrate with 100 ml of 0.15 M calcium chloride.

The reaction between silver nitrate and calcium chloride results in the formation of silver chloride and calcium nitrate. To calculate the amount of silver chloride produced, we can use the balanced chemical equation for the reaction. The balanced equation is AgNO3 + CaCl2 -> AgCl + Ca(NO3)2. Based on the stoichiometry of the reaction, every mole of silver nitrate reacts with one mole of calcium chloride to form one mole of silver chloride. The number of moles of each reactant can be calculated using the molarity and volume of each solution. The number of moles of each reactant can be compared to determine the limiting reagent. The amount of silver chloride produced can then be calculated by multiplying the number of moles of silver chloride by its molar mass.

n = M × V = 0.15 M × 0.1 L = 0.015 moles

m = n × MM = 0.015 moles × 143.32 g/mol = 2.15 g

Therefore, 2.15 g of silver chloride can be prepared by the reaction of 100.0 mL of 0.20 M silver nitrate with 100.0 mL of 0.15 M calcium chloride.

Learn more about silver chloride:

brainly.com/question/12912140

#SPJ4

Answer:

Joule

Explanation:

This is the answer

(1) Bromination, (2) E2 elimination, and (3) epoxidation is formed by 1,2‑epoxycyclopentane from bromocyclopentane by dragging the appropriate formulas into the bin.

Step 1: Bromocyclopentane is reacted with hydrobromic acid and silver oxide to produce 1,2‑dibromocyclopentane.

Step 2: 1,2‑dibromocyclopentane is then reacted with a base, such as sodium hydroxide, to produce 1,2‑epoxycyclopentane.

Step 3: Finally, the 1,2‑epoxycyclopentane is reacted with aqueous acid to form 1,2‑epoxycyclopentane.

Bromocyclopentane responds with sodium methoxide to frame tertiary liquor, sulfated with sulfuric acid, then treated with base to yield 1,2-epoxy cyclopentane.

To learn more about the chemical reactions at

https://brainly.com/question/29762834

#SPJ4

The enthalpy of the reaction P₄O₆(s) + 2O₂(g) → P₄O₁₀(s) calculated from the enthalpies of the reactions P₄(s) + 3O₂(g) → P₄O₆(s) and P₄O₁₀(s) → P₄(s) + 5O₂(g) is -1300 kJ.

Enthalpy is a thermodynamic property of a system. It is the sum of the internal energy added to the product of the pressure and volume of the system. Enthalpy is denoted as H.

We need to find the enthalpy of the following reaction:

P₄O₆(s) + 2O₂(g) → P₄O₁₀(s)      ... (1)

And we know the enthalpies of the reactions:

P₄(s) + 3O₂(g) → P₄O₆(s)   ΔH₁ = -1640.1 kJ  ....  (2)

P₄O₁₀(s) → P₄(s) + 5O₂(g)  ΔH₂ = 2940.1 kJ    .... (3)  

To calculate the enthalpy of reaction (1) using the values of enthalpies of reactions (2) and (3), we need to make the following changes for these two reactions:

1. Invert reaction (3):

P₄(s) + 5O₂(g) → P₄O₁₀(s)  ΔH₂ = -2940.1 kJ  ...  (4)                    

Now we have the P₄O₁₀ on the side of the product as in reaction (1). The inversion changed the sing of enthalpy ΔH₂.

2. Invert reaction (2):

P₄O₆(s) → P₄(s) + 3O₂(g)  ΔH₁ = 1640.1 kJ  .... (5)  

The compound P₄O₆ is now on the side of the reactant as in reaction (1). The inversion changed the sing of enthalpy ΔH₁.  

Now, the addition of reactions (4) and (5)

To get the reaction (1) we need to add reactions (4) and (5)

P₄(s) + 5O₂(g) + P₄O₆(s) → P₄O₁₀(s) + P₄(s) + 3O₂(g)

Now, reaction (1) will be

P₄O₆(s) + 2O₂(g) → P₄O₁₀(s)

The enthalpy value of the reaction (1) can be calculated by the sum of the enthalpies of the reactions (4) and (5):

ΔH = ΔH₁ + ΔH₂

ΔH = 1640.1 + (-2940.1)

ΔH = -1300 kJ

Therefore, the enthalpy of the reaction P₄O₆(s) + 2O₂(g) → P₄O₁₀(s) calculated from the enthalpies of the reactions P₄(s) + 3O₂(g) → P₄O₆(s) and P₄O₁₀(s) → P₄(s) + 5O₂(g) is -1300 kJ.

To learn more about enthalpy, click here:

https://brainly.com/question/7827769

Answer:

option B

p4O6(s) + 2O2(g) Right arrow. P4O10(s)

Explanation:

just did it. edge 2022

Answer: Gold Wire

Explanation:

Out of all of these options only gold wire is an element, elements are pure and cannot be broken down by any chemical means

hope it helped, good luck :)

1) Grams of lead.

Convert grams of lead (II) nitride to moles of lead (II) nitride

Convert moles of lead (II) nitride into moles of Pb

Convert moles of Pb into grams of Pb

There is 31.64 g of ions of lead in the sample of paint.

Answer:

10. Embryology is the branch of biology and medicine concerned with the study of embryos and their development.

11. I think the answer is, Both humans and whale embryos have a tail and a backbone (I'm not sure).

12. Basilosaurid, any member of the family Basilosauridae, an early group of whales that lived from the middle Eocene to the late Oligocene Epoch (about 41 million to 23 million years ago).

13.  Protocetids had long snouts, large eyes, and their nasal opening was farther caudally than in earlier archaeocetes.

14. Two ways we know that Maiacetus was a whale re:

1) Their skeletons have all been found among fossils of sea-creatures which suggests they lived in the sea.

2) Their hip bones were strong enough to walk on land, but their short legs combined with long flat fingers and toes suggest they would have had difficulty walking.

15. The name Maiacetus means Mother Whale. Maiacetus is significant because of how well the skeletons were preserved.

Hope this helps! :D

Answer:A

Explanation:taking the test now

Answer:

A. rubidium chloride on edge 2020

Explanation:

i took the test and got it right

Answer: To determine the correct subscripts in a chemical formula, you have to solve how many atoms you need to balance the charge.

For example if I had the compound Calcium Fluoride I would look at the periodic table and see that Calcium's ionic formula is

C

a

2

+

. How do I know this? Well all elements want to have 8 valance electrons so they can be stable(happy). Seeing that Calcium has 2 valance electrons it is going to give away 2 electrons because that is easier than gaining 6 to be happy. Since Calcium has given away 2 electrons it has two more protons than electrons. We know that Protons have a Positive charge, Electrons have Negative charge, and the number of electrons is equal to the atomic number of an element in its pure non-ionic state. (Meaning it doesn't have a positive or negative charge; it is balanced.)

So if calcium gave away two electrons, it will have two more protons than an electron giving it a (2+) charge. The same process can be applied to Fluoride. Since fluoride is one to the left of the noble gases(group 18 or 8A) on the periodic table we know that it has 7 valance electrons because it is in group 7A or 17.

Knowing that we have 7 electrons the fluoride atom will gain an extra electron. Since the fluoride atom gained an extra electron it will have one more negative charge than a positive making it a

^

(

−

)

ion.

So you know that Calcium has a 2+ charge and that fluoride has a 1- charge, you then need these ions to balance out. So you need two fluorine atoms with a 1- ions to balance out the 2+ ion of calcium. Your final answer would be

C

a

F

2

because you need two fluorine atoms to balance out the 2+ charge of the calcium.

Final Tip: Determine the charges then inverse the charges, remove the positive and negative superscipts, and write the charge numbers as a sub script. Ie. Calcium Fluoride

C

a

2

+

and

F

−

inversing and removing the charge signs would give you

C

a

F

2

Explanation:

Answer:

electricity

Explanation:

A circuit is used in every electrical and electronics operation.

One change in homes that could help save electrical energy is to replace all incandescent bulbs with LED bulbs.

There are different ways one can save electrical energy in their home. Some of them include:

LED bulbs are known as Light-Emitting Diode bulbs. They are energy-saving bulbs, although might be more expensive than their incandescent counterparts.

According to research, LED bulbs have the capacity to save up to 75% of energy compared to other bulbs. Thus, if anyone is looking to save electrical energy and they have incandescent bulbs at some lighting points, they will get very good results by replacing them with LED bulbs.

More on saving electrical energy can be found here: https://brainly.com/question/28816816

#SPJ1

Answer: One change in homes that could help save electrical energy is to replace all incandescent bulbs with LED bulbs. They are energy-saving bulbs, although might be more expensive than their incandescent counterparts.According to research, LED bulbs have the capacity to save up to 75% of energy compared to other bulbs. Thus, if anyone is looking to save electrical energy and they have incandescent bulbs at some lighting points, they will get very good results by replacing them with LED bulbs.Turning off all lights and electrical appliances when not in use. Reduction of electrical appliances. For tv, set brightness, contrast and enable power saving mode. These are two other ways to consume less energy in your home.

Explanation: I hope this helps

When 50 NBr3 molecules and 57 NaOH formula units react according to the given balanced equation, the result is the formation of 150 NaBr formula units.

According to the balanced equation provided:

2 NBr3 + 3 NaOH -> N2 + 3 NaBr + 3 HOBr

From the equation, we can see that 2 moles of NBr3 react with 3 moles of NaOH to form 3 moles of NaBr.

To determine the number of NaBr formula units formed, we need to convert the given quantities into moles.

Given:

Number of NBr3 molecules = 50

Number of NaOH formula units = 57

To convert the number of NBr3 molecules to moles, we need to divide the given quantity by Avogadro's number. Similarly, for NaOH formula units, we can directly consider them as moles.

Using Avogadro's number (6.022 x 10^23 molecules/mol), we can calculate the number of moles for NBr3 and NaOH:

Number of moles of NBr3 = 50 / (6.022 x 10^23)

Number of moles of NaOH = 57

Now, we can use the mole ratios from the balanced equation to determine the number of moles of NaBr formed. From the equation, we know that 2 moles of NBr3 react to form 3 moles of NaBr.

Number of moles of NaBr = (Number of moles of NBr3) x (3 moles of NaBr / 2 moles of NBr3)

Finally, we can convert the number of moles of NaBr to the number of NaBr formula units using Avogadro's number:

Number of NaBr formula units = (Number of moles of NaBr) x Avogadro's number

Calculating these values, we find that 50 NBr3 molecules and 57 NaOH formula units react to form 150 NaBr formula units.

To learn more about Avogadro's number click here: brainly.com/question/18948587

#SPJ11

A scientific law is different from a scientific theory because it describes something in nature without attempting to explain it, this statement is true.

A scientific law foretells the outcomes of particular beginning circumstances. It may tell you what color hair your unborn kid would have or how far a baseball will go when fired at a specific angle.In contrast, a theory seeks to offer the best plausible justification for why events take place the way they do.

A scientific law often describes an observable phenomena. It doesn't explain the phenomenon's existence or its origins. A scientific theory is the explanation for a phenomena. It is untrue that with enough study, hypotheses become laws.

Thus, a scientific law is different from a scientific theory because it describes something in nature without attempting to explain it, this statement is true.

To learn more about difference between scientific theory and scientific  law follow the link;

https://brainly.com/question/1308851

#SPJ1

Verify that the number of atoms of each element is equal on both sides of the equation and, if the equation contains ions, that the charges are balanced equation.

The number and type of each atom in balanced chemical equations are the same on both sides of the equation. The simplest whole number ratio must be used as the coefficients in a balanced equation. In chemical processes, mass is always preserved.

Each element must have the same number of atoms on the left as it has on the right. You must add integers to the left of one or more equations to balance an imbalanced equation.

To know more aout balanced equation visit:-

https://brainly.com/question/2399130

#SPJ1

The advantage of making a solvent unblocking lightly nonpolar is to increase the solubility of polar and ionic compounds.

The solubility of a solute in a solvent is largely determined by the relative polarity of the solute and solvent. Polar solvents dissolve polar solutes, while nonpolar solvents dissolve nonpolar solutes. Making a solvent unblock lightly nonpolar increases its ability to dissolve polar and ionic compounds by reducing the difference in polarity between the solvent and solute.

This allows polar and ionic compounds to be dissolved in a nonpolar solvent, which can be useful in various applications, such as chromatography and chemical reactions.

Learn more about polar and ionic compounds:

https://brainly.com/question/24692494

#SPJ4

Among the following options, the disadvantage of marble is that it erodes due to pollution. The correct option is 2.

Marble is a kind of rock that is soft and easy to carve when freshly quarried, but hardens as it ages. Marble is a naturally occurring rock that is made up of the mineral calcite. Marble is utilized as a decorative material in architecture and sculpture because of its ability to be polished to a high shine.

Most marbles can be categorized as either calcite or dolomite. The term "marble" is often used in the industry to refer to any polished natural stone, but this is a misnomer. Only true marble, which is a metamorphic rock, can be polished in this manner.

The advantages of marble are as follows:

The disadvantages of marble are as follows:

To know more about marble, refer here:

https://brainly.com/question/13368283#

#SPJ11

So,

Since ice, liquid water, and water vapor have different intermolecular environments (in part due to the different average distance between molecules), energy is absorbed and distributed differently in these three phases of water, resulting in different specific heats.

The intermolecular forces of liquid water, ice, and water vapor are different. Therefore, different amounts of energy are needed to raise their temperature.

The correct answer is B.

Answer:

A

Explanation:

kinetic and mass are directly proportional

so if one increases the other does to

The relationship between the kinetic energy of an object and the mass of an object is Kinetic energy gets bigger at the same rate as the mass of an object.

The energy that an object has as a result of motion is known as kinetic energy. It is described as the effort required to move a mass-determined body from rest to the indicated velocity. The body keeps the kinetic energy it acquired throughout its acceleration unless its speed changes.

Potential energy can be moved into motion by a variety of catalysts, including gravity and chemical reactions, to release kinetic energy. As a result, kinetic energy rises and potential energy falls. Mechanical energy is the sum of all kinetic and potential energy.

The capacity to perform work is arguably the most significant characteristic of kinetic energy. Force acting on an object while it is moving is referred to as work. Energy and work are interchangeable because of their tight relationship.

Thus, option A is correct.

To learn more about kinetic energy, follow the link;

https://brainly.com/question/15764612

#SPJ2

Answer:

increases

Explanation:

it turns out that an object increases as the square of it's speed.

Answer:

Explanation:

In all physical processes taking place in closed systems, the amount of change in kinetic energy is equal to the amount of change in potential energy. If the kinetic energy increases, the potential energy decreases, and vice-versa. this equation reveals that the kinetic energy of an object is directly proportional to the square of its speed. That means that for a twofold increase in speed, the kinetic energy will increase by a factor of four. so therfore stays the same as the object so it would speed up as well.

Answer: hope it help

Explanation:

1. I assume that it is possible to create the most beneficial consequences in rural zones where agricultural production is concentrated in the region as solutions are placed in place to reduce the human effect on nature. That is because agriculture is a practice that has a huge effect so it is important to protect the climate and nature so that farming can continue.

2. The first suggestion I make to my group is that limited waste disposal should be used. This will encourage any recycled material to have no association with products that would stop recycling. When the love is recycled,

a. The mass of the total ferrite form of 0.60 kg of austenite containing 1.1 wt% C, cooled to below 727°C (1341°F) is 0.013 kg.

b. The mass of the total cementite form is 0.02 kg.

c. The mass of the pearlite form is 0.57 kg.

d. The mass of the proeutectoid phase form is 0.019 kg.

a. To calculate the total amount of ferrite formed given by the mass of austenite times the mass fraction of ferrite at the austenite-ferrite phase boundary as follows:

mFerrite = wFe,α × mAustenite

Where,

The mass fraction of ferrite at the austenite-ferrite phase boundary is wFe,α = 0.022 kg/kg. Using this value and mAustenite = 0.6 kg, we get,

mFerrite = 0.022 kg/kg × 0.6 kg

= 0.0132 kg ≈ 0.013 kg

Therefore, the total amount of ferrite formed is 0.013 kg.

b. To find the total amount of cementite formed given by the mass of austenite times the mass fraction of cementite at the austenite-cementite phase boundary as follows:

mCementite = wFe3C,γ × mAustenite

Where,

The mass fraction of cementite at the austenite-cementite phase boundary is wFe3C,γ = 0.033 kg/kg. Using this value and mAustenite = 0.6 kg, we get,

mCementite = 0.033 kg/kg × 0.6 kg

= 0.0198 kg ≈ 0.02 kg

Therefore, the total amount of cementite formed is 0.02 kg.

c. The total amount of pearlite formed is the difference between the total mass of austenite and the total masses of ferrite and cementite formed.

mPearlite = mAustenite - (mFerrite + mCementite)

Substituting the values,

mPearlite = 0.6 kg - (0.013 kg + 0.02 kg)

= 0.567 kg ≈ 0.57 kg

Therefore, the total amount of pearlite formed is 0.57 kg.

d. To calculate the total amount of the proeutectoid phase formed given by the mass of austenite times the mass fraction of the proeutectoid phase as follows:

mProeutectoid = wFe3C,α × mAustenite

Where,

From the given data, the mass fraction of carbon in austenite is W2 = 1.1%. The mass fraction of cementite in austenite at any temperature is given by:

wFe3C,α = (6.67 × 10⁻⁵ × C²) + (0.000124 × C) + 0.0225 where C is the mass fraction of carbon in austenite expressed as a decimal.

Substituting the value of W2 = 0.011 in the above equation and solving for wFe3C,α , we get: wFe3C,α = 0.032 kg/kg. Using this value and mAustenite = 0.6 kg, we get,

mProeutectoid = 0.032 kg/kg × 0.6 kg

= 0.0192 kg ≈ 0.019 kg

Therefore, the total amount of the proeutectoid phase (cementite) formed is 0.019 kg.

Learn more about ferrite: https://brainly.com/question/32271702

#SPJ11

The correct expression which best reveals the advantage of conducting a comparative investigation over collecting data from the Internet is:

A comparative investigation can provide a wider range of data than can be obtained from the Internet

The correct answer choice is option d.

When making a research or investigation in certain areas such as the ones which involves comparative investigation, one great benefit of it is that it opens our eyes of understanding to get, see and understand information clearly in a function of their differences and similarities.

So therefore, we can now confirm that ease with with the compare the variation and similarities in comparative investigation is one of its advantage over data collection from the website.

Read more on comparative investigation:

https://brainly.com/question/3897229

#SPJ1