In which figure and page can you find the titration curve for glycine?

Answer:

d.) gases can be expanded without limit.

Answer:

Niels Bohr

Explanation:

Niels Bohr presented an atom model in which the electron could only occupy specific orbits around the nucleus. The electrons were constrained to particular orbits around the nucleus in this atomic model, which was the first to employ quantum theory.

~

Answer:

neils bohr

Explanation:

on in the pic please mark me as brainlist

Answer:

A, T, C y G, son las "letras" del código del ADN; representan los compuestos químicos adenina (A), timina (T), citosina (C) y guanina (G), respectivamente, que constituyen las bases de nucleótidos del ADN. ...El código genético es el conjunto de reglas que define cómo se traduce una secuencia de nucleótidos en el ARNm a una secuencia de aminoácidos en una proteína

Answer:

C

Explanation:

Volume is the amount of space taken up by an object

The instrument used to measure liquid volume is called a graduated cylinder.

The formula used to calculate the volume of a solid object such as a rectangular prism is: V =  length, *  width * height

Volume is a measure of the amount of space that a substance or object occupies. It is typically measured in units such as liters, cubic meters, gallons, or cubic feet.

The instrument used to measure liquid volume is called a graduated cylinder. It is a cylindrical tube made of glass or plastic, with volume markings along its length that allow for the accurate measurement of liquids.

The formula used to calculate the volume of a solid object depends on its shape. Here are some common formulas for finding the volume of different types of solid objects:

Cube: V = s³ (where s is the length of one side of the cube)

Rectangular prism: V =  length, *  width * height

Sphere: V = 4/3πr³ (where r is the radius of the sphere)

Cylinder: V = πr^2h (where r is the radius of the cylinder and h is its height)

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Answer:

A. cycas

1. it is thick and scaly

2. it grow relatively slowly and have a large, terminal rosette of leaves.

B. bamboo

1. it is very durable

2. it is both flexible and elastic

C. lemna

1. it grows as simple free-floating thalli on or just beneath the water surface

2. it are small, not exceeding 5 mm in length

D. paddy

1. it is variety purity

2. it degree of purity

E. sugarcane

1. it is bear long sword-shaped leaves

2. it's stalks are composed of many segments, and in each joint there is a bud

Answer:

B. 75.0 kPa

Explanation:

P1V1/T1=P2V2/T2

(x * 100 L)/(300 K)=(100 kPa * 50.0 L)/(200 K)

x=75.0 kPa

Answer:

24rq3r54

Explanation:

3t5q6tq6tq

The number of moles of PCl₃ that contain 3.68 × 10^25 chlorine atoms is 61.33 mol.

In order to calculate the number of moles of PCl₃ that contain 3.68 × 10^25 chlorine atoms, we need to use Avogadro's number, which is defined as the number of atoms or molecules present in 1 mole of a substance. Avogadro's number is approximately equal to 6.022 × 10^23 atoms or molecules per mole.

The molar mass of PCl₃ is 137.33 g/mol. From this information, we can calculate the number of moles of PCl₃ as follows: Number of moles of PCl₃ = Number of atoms of Cl / Avogadro's number.

Number of moles of PCl₃ = 3.68 × 10^25 / 6.022 × 10^23

Number of moles of PCl₃ = 61.33 mol.

Therefore, 61.33 mol of PCl₃ contain 3.68 × 10^25 chlorine atoms.

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True becuase the substance changed into another substance which is a example of a chemical reaction.

Answer:

A weather station

Explanation:

A weather station measures the wind speed and humidity of a specific area. GIS gives visual data that scientists can analyze, GPS gives the exact location of a weather phenomenon, and a hammer and lens allow scientists to study Earth’s geologic features.

An air mass is a volume of air whose temperature and humidity are specified. Many hundreds or thousands of square miles are covered by air masses, which adjust to the properties of the land underneath them.

An air mass is a volume of air whose temperature and humidity are specified. Many hundreds or thousands of square miles are covered by air masses, which adjust to the properties of the land underneath them. Latitude and their continental or marine source regions are used to categorize them.

There is a temperature and air pressure differential. Storms are caused by abrupt changes in the weather. Two natural wind patterns come into conflict.

The hot and dry continental tropical (cT) air mass is prevalent over subtropical and tropical continents. The world's largest deserts, such the Sahara, Arabian, and Australian, are important source areas.

Thus, Latitude and their continental or marine source regions are used to categorize them. An air mass is a volume of air whose temperature and humidity are specified.

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Calculate the number of moles of chlorine that combined with one mole of lead in ..... The molar volume of a gas at STP, VSTP , is equal to the ... The temperature of the water was 26.3°C and the air pressure of the room ..... 23.7 g Na2S2O3.

the temperature of the water was 26.3 and the air pressure of the room

.....23.7 g Na2S2O3

Explanation:

Taking into account the reaction stoichiometry, 17.61 moles of O₂ is required to react with 155 grams of C₃H₈.

In first place, the balanced reaction is:

C₃H₈ + 5 O₂  → 3 CO₂ + 4 H₂O

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

The molar mass of the compounds is:

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

The following rule of three can be applied: if by reaction stoichiometry 44 grams of C₃H₈ react with 5 moles of O₂, 155 grams of C₃H₈ react with how many moles of O₂?

\(moles of O_{2} =\frac{155 grams of C_{3} H_{8}x5 moles of O_{2} }{44 grams of C_{3} H_{8}}\)

moles of O₂= 17.61 moles

Finally, 17.61 moles of O₂ is required to react with 155 grams of C₃H₈.

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Recrystallization is used to remove excess reactant from the alum product by dissolving in hot water and cooling slowly.

The overabundance reactant in the alum item can be eliminated by a cycle called recrystallization. In this cycle, the alum item is broken down in steaming hot water, and the arrangement is permitted to gradually cool. As the arrangement cools, the alum gems begin to frame, and debasements, for example, overabundance reactant and side-effects are avoided from the precious stone cross section. The debasements stay in the arrangement and can be eliminated by filtration, abandoning unadulterated alum precious stones. The recrystallization cycle depends on the rule that various substances have various solubilities in a given dissolvable at various temperatures, and in this way, can be isolated in view of their solubilities. Recrystallization is an ordinarily involved method for cleaning intensifies in science.

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The mass of chloroform (CHCl3) in a glass of the given water sample is approximately 2.35 × 10^(-6) grams.

To calculate the mass of chloroform (CHCl3) in the given water sample, we need to convert the concentration from parts per billion (ppb) to grams per liter (g/L).

Concentration of chloroform (CHCl3) in water = 9.4 ppb

Volume of water = 1 glass (Assuming a standard glass volume of 250 mL or 0.25 L)

Step 1: Convert ppb to g/L

1 ppb = 1 μg/L (microgram per liter)

Concentration of CHCl3 in water = 9.4 ppb = 9.4 μg/L

Step 2: Calculate the mass of CHCl3 in the given volume of water.

Mass of CHCl3 in water = Concentration of CHCl3 * Volume of water

Mass of CHCl3 in water = 9.4 μg/L * 0.25 L = 2.35 μg

Step 3: Convert micrograms (μg) to grams (g).

1 μg = 1 × 10^(-6) g

Mass of CHCl3 in water = 2.35 μg * (1 × 10^(-6) g/μg) = 2.35 × 10^(-6) g

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The amount of the heat in kJ , would be involved in the condensing 12.9v g of the CH₃OH  is the 15.2 kJ.

Given that :

The mass of the CH₃OH = 12.9 g

The ΔH = 38 kJ/mol

The molar mass = 32 g/mol

The number of the moles = mass / molar mass

The number of the mole = 12.9 / 32

                                         = 0.403 mol

The number of the moles is 0.403 mol

The amount of the heat is given as  :

Q = n ΔH

Q = 0.403 × 38

Q = 15.2 kJ.

Thus, the amount of the heat is 15.2 kJ.

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The main reservoirs of the carbon cycle are the atmosphere, oceans, land (including vegetation and soils), and fossil fuels. In these reservoirs, carbon exists in both inorganic and organic forms.

The inorganic carbon cycle involves the exchange of carbon dioxide (CO2) between the atmosphere and oceans through processes like photosynthesis and respiration.

Organic carbon, on the other hand, is found in living organisms, dead organic matter, and soil organic matter. It is cycled through processes such as decomposition and consumption by organisms. The interactions between the inorganic and organic carbon cycles occur primarily in the biosphere, where photosynthesis converts inorganic carbon into organic carbon compounds. While inorganic carbon is primarily in the form of CO2, organic carbon is present in complex organic molecules. Both forms of carbon play crucial roles in energy transfer, nutrient cycling, and climate regulation.

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Answer:

A molecule

Explanation:

Because that is what I think ^^~

Potash is commonly measured in pounds or kilograms, so you may need to convert the units accordingly. Additionally, it's always recommended to consult with a professional or refer to specific guidelines for accurate recommendations

To determine the amount of Potash needed to purchase for 11 acres with a recommendation of \(3 K2O/acre\), you can follow these steps:
1. Calculate the total amount of Potash needed for 11 acres:
 \(3 K2O/acre * 11 acres = 33 K2O\)
2. Convert K2O to Potash (K2O is the chemical formula for Potash):
\(33 K2O * (1 Potash / 1 K2O) = 33 Potash\)

Therefore, you would need to purchase 33 units of Potash for 11 acres with a recommendation of\(3 K2O/acre\).
It's important to note that the specific unit of measurement for Potash was not provided in the question
Remember to double-check your calculations and units to ensure accuracy.

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Answer:

Similar properties

Explanation:

Potassium (K) has atomic number 19 which means its electron configuration (pattern of electrons in it's energy levels (electron shells)) is 2·8·8·1 while Copper (Cu) has atomic number 29 which means its electron configuration is 2·8·8·8·3 hence Potassium has 4 electron shells while Copper has 5

Potassium has 19 protons (from its atomic number) while Copper has 29 protons

The number of protons and electrons is usually the same (in an atom) (that's why atoms don't naturally have charges i.e they're usually neutral) so Potassium has about 19 electrons while Copper has about 29 electrons.

So similar properties automatically becomes your answer cuz the rest are wrong.

The given question is incomplete. The complete question is:

Consider the spontaneous dissolution of NaCl in water: NaCl(s) → Na+(aq) + Cl −(aq) Predict whether the entropy change for this process is positive or negative and explain your answer. Then, predict whether the free energy change for the process is positive or negative and explain your answer.

Answer: The entropy change is positive. The free energy change for the process is negative and reaction is spontaneous.

Explanation:

Entropy is defined as the degree of randomness of a system. For a system in which randomness increses , the enetropy is said to increase and \(\Delta S\) is positive.

As in the given reaction : \(NaCl(s)\rightarrow Na^+(aq)+Cl^-(aq)\) , the solid is dissociating to give ions , randomness increases and thus entropy is positive.

Also the dissociation of a molecule requires energy , thus the enthalpy \(\Delta H\) is also positive as heat is absorbed by the system.

\(\Delta G=\Delta H-T\Delta S\)

\(\Delta G=(+ve)-T(+ve)\)

\(\Delta G=-ve\) when Temperature is high.

Consider the spontaneous dissolution of NaCl in water: NaCl(s) → Na+(aq) + Cl −(aq)

Predict whether the entropy change for this process is positive or negative and explain your answer. Then, predict whether the free energy change for the process is positive or negative and explain your answer.

The given question is incomplete. The complete question is:

Consider the spontaneous dissolution of NaCl in water: NaCl(s) → Na(aq)  Cl −(aq) Predict whether the entropy change for this process is positive or negative and explain your answer. Then, predict whether the free energy change for the process is positive or negative and explain your answer.

Answer: The entropy change is positive. The free energy change for the process is negative and reaction is spontaneous.

Explanation:

Entropy is defined as the degree of randomness of a system. For a system in which randomness increses , the enetropy is said to increase and  is positive.

As in the given reaction :  , the solid is dissociating to give ions , randomness increases and thus entropy is positive.

Also the dissociation of a molecule requires energy , thus the enthalpy  is also positive as heat is absorbed by the system.

when Temperature is high.

Which of these ideas did you include in your answer?

Have a Nice Day .

Depending on the reaction, we could monitor the progress towards equilibrium by observing the concentration of the reactant and the product are equal with time.

Equilibrium is a stage of reaction in which the rate of forwarding reaction is equal to the rate of backward reaction and equilibrium is stable at the reversible state of mode.

The concentration of reactant and product must also be equal or the same as the time then only it can be an equilibrium reaction.

Therefore equilibrium depends on the reaction, the concentration of the reactant and the product are equal with time.

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Answer:

I dont know

Explanation:

because I dont know

Silicates are the most abundant mineral group and make up about 90% of the Earth's crust. They are composed of silicon and oxygen atoms held together by strong chemical bonds.

Silicates are generally hard and durable and can form a wide variety of shapes and colors. They are also very abundant in the Earth's crust, making them an important component of rocks and soil. Silicates are also important components of many meteorites, and some have been found on other planets and moons. Silicates can form in igneous, sedimentary, and metamorphic rocks, and they often form the crystals found in rocks and gemstones.They are often resistant to weathering, meaning they can last for a long time on the surface of the Earth. Silicates are also abundant in meteorites, comets, and other extraterrestrial rocks, which provide clues about the formation and evolution of our solar system.

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Answer:

whoa this question is long

Explanation:

how did u write it gosh

Answer:

1. atom

2. different

3. compounds

4. joined

5. separated

--

1. NT

2. ST

3. AT

--

1. subatomic

2. negative

3. Protons

4. neutrons

5. Nucleus

6. Rutherford

7. positive

8. electrons

--

1. T

2. T

3. F

4. T

Explanation:

look at the answer

Answer: A.

Explanation: When light passes through a small hole, it creates an inverted image on the opposite side. In this case, since the arrow is pointing up, the inverted image will appear pointing down on the opposite wall. Furthermore, since the box has a hole on its left side, the inverted image will be shifted towards the left.