When 5. 0g of NH4CLO4 is added to 100mL of water in a calorimeter, the temperature of the solution formed decreases by 3. 0C?

Answer: Hydrogen , Oxygen

Explanation:

H2O= 2H+O

In a zero order reaction, the rate of the reaction is independent of the concentration of the reactants or products.

A zero order reaction is characterized by a constant rate of reaction regardless of the concentration of the reactants or products. In other words, the rate of the reaction does not depend on the concentration of the reactants or products.

This means that even if the concentration of the reactants or products is changed, the rate of the reaction remains the same. The reaction occurs at a constant speed because the rate of a zero order reaction is determined solely by the rate constant (k) of the reaction.

The rate equation for a zero order reaction can be written as Rate = k. This means that the rate is directly proportional to the rate constant. Unlike first order or second order reactions where the rate depends on the concentration of the reactants or products, a zero order reaction is unique in that it proceeds at a constant speed regardless of the concentration.

Learn more about concentration here:

https://brainly.com/question/30862855

#SPJ11

Answer:

3.96×10^−22J

Explanation:

First find the frequency of the photon from the equation

c=fλ

∴f=c/λ

=3×10⁸m/s / 0.050×10^−2m

=6×10¹¹Hz.

Energy of such photons is quantized and given by

E=hf

=(6.6×10^−34)(6×10¹¹)

=3.96×10^−22J

Among electromagnetic waves, UV rays are most dangerous because exposure to these radiation cause serious problems in living organism. The energy of photon is 3.96×10⁻²²J.

Electromagnetic wave is a wave which contain two component one is electric component and other is magnetic component. The electric and magnetic component are perpendicular to each other. There are so many wave that comes under electromagnetic wave like infrared wave , radio wave

There is a relation between energy of wave. frequency of wave, and wavelength of wave

Mathematically,

E=hc/λ

where,

E = energy of electromagnetic wave

h is planks constant having value 6.67×10⁻³⁴js

c is speed of light that is 3×10⁸m/s

λ is the wavelength of electromagnetic wave

frequency=speed of light/wavelength

                =3×10⁸m/s / 0.050×10⁻²m

                 =6×10¹¹Hz.

E=h×frequency

  =(6.6×10⁻³⁴)(6×10¹¹)

  =3.96×10⁻²²J

Therefore, the energy of photon is 3.96×10⁻²²J.

To know more about electromagnetic wave, here:

https://brainly.com/question/12289372

#SPJ2

Among the given options, there is only one chemical property, which is flammability. This property measures the capability of substance to burn or ignite when exposed to a flame.

It means that in chemical properties you should put the flammability of ethyl alcohol.

In physical properties you should put the rest of the options.

Using the concepts of Avogadro Law, we got the given statement is true.

The law of definite proportions defines samples of a compound will always contain the same proportion of the elements by mass. The mass ratio of elements is fixed no matter where the elements comes from, how the compound is prepared. Essentially, the law is based on  fact that an atom of a particular element is the same as any other atom of that element. So, an atom of oxygen is  same, whether it comes from silica or oxygen in the air.

The Law of Constant Composition is  equivalent to definite proportions, which states each sample of a compound has the same composition of elements by mass.

The law of definite proportions actually tells  water will always contain 1/9 hydrogen and 8/9 oxygen by mass.

The sodium and chlorine in table salt combine according to the rule and become NaCl. The atomic weight of sodium is 23grams and that of chlorine is about 35grams, so from the law one may conclude dissociating 58 grams of NaCl will produce about 23 g of sodium and 35 g of chlorine.

Hence, it is true that the substances combine in predictable proportions and that excess reactants remain unchanged.

To know more about the Avogadro Law, visit here:

https://brainly.com/question/4133756

#SPJ4

Answer:

Each names a given number of objects.

Explanation:

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.

Learn more about Carbon Cycle

brainly.com/question/13729951

#SPJ11

Arsenic poisoning affects the activity of the pyruvate dehydrogenase complex by covalently modifying the lipoamide groups on the enzyme. This inactivates the enzyme and thus inhibits its ability to catalyze the conversion of pyruvate to acetyl-CoA.

In the process of arsenic poisoning, the arsenic compounds can modify the activity of the pyruvate dehydrogenase complex by covalently modifying a lipoamide group. Arsenic binds to sulfur in cysteine residues in many proteins, which affects protein structure and activity.

The arsenic compound reacts with dithiols and covalently modifies a lipoamide group, which directly affects the E2 subunit of the pyruvate dehydrogenase complex. E2 subunit has a lipoamide group, which acts as a cofactor, and is critical for its catalytic activity. This cofactor is also important for the interactions between the E2 subunit and other subunits of the pyruvate dehydrogenase complex. Hence, when this group is modified by arsenic compounds, it can cause irreversible inactivation of the pyruvate dehydrogenase complex. As a result, pyruvate cannot be converted to acetyl CoA, and glucose metabolism is disrupted, leading to symptoms of arsenic poisoning.

learn more about the pyruvate dehydrogenase complex

https://brainly.com/question/29997944

#SPJ11

Answer:

A.

Explanation:

Answer: c. ceabd

Explanation: Substances that are more dense move to the bottom of the beaker. Substances that are less dense float to the top.

In an isovolumetric process, also known as an isochoric process, the volume of the gas remains constant. This means that no work is done by or on the gas since the gas does not change its volume.

The change in internal energy (ΔU) of an ideal gas is related to the heat added or removed (Q) from the gas according to the First Law of Thermodynamics:

ΔU = Q - W,

where Q is the heat and W is the work. Since the process is isovolumetric, there is no work done (W = 0). Therefore, the change in internal energy simplifies to:

ΔU = Q - 0 = Q.

In this case, the gas undergoes an isovolumetric process, resulting in a doubling of pressure. Since no heat is mentioned, we cannot determine the change in internal energy (ΔU) directly. It depends on the specific conditions of the process and the amount of heat transferred.

Therefore, without additional information about the heat transfer, we cannot determine whether the internal energy of the gas after the expansion is exactly zero (option A), less than its initial value but not zero (option B), equal to its initial value (option C), or more than its initial value (option D).

Learn more about isovolumetric process from the given link!

https://brainly.com/question/29253102

#SPJ11

Molarity of a KCL solution made by dissolving 28.4 g of KCL in a total volume of 500 ml is calculated as 0.7619 M KCL.

Mole is a unit of measurement used for chemical substance. Molarity is also known as the molar concentration of solution. It is the technique of calculating the amount of substance that a particular chemical solution contains.

As we know that the molar mass of KCl is 74.55 g/mol.

Hence, molarity = 28.4 g * 1 mol KCl /74.55 g * 1/500 mL * 1000 mL/1 L

Now, molarity = 0.7619 M KCl.

To know more about molarity, refer

https://brainly.com/question/26873446

#SPJ4

Answer:

210 m in 3 sec

Explanation:

The speed of the Cheetah is given to be 70m/s .

   We know that:

         Speed  = \(\frac{distance }{time}\)  

Now we find the choice that gives 70m/s:

480 m in 6 sec

          Speed  = \(\frac{480}{6}\)   = 80m/s

600 m in 10 sec

           Speed  = \(\frac{600}{10}\)   = 60m/s

210 m in 3 sec

            Speed  = \(\frac{210}{3}\)   = 70m/s

300 m in 5 sec

          Speed  = \(\frac{300}{5}\)    = 60m/s

So the solution is 210 m in 3 sec

Answer:

37.04 or 37 cubic cm

Explanation:

Density = Mass/Volume

19.3=715/x

19.3x=715

715/19.3=37.04

The order of the arrangement of the strengths of the acids is;

Sulfurous acid < Sulfuric Acid < Fluorosulfuric acid. Option C

The term acid strength has to do with the ease with which the acid is ionized in water. If the acid is well ionized in water then the acid will have a great acid strength.

In this case, we must be able to consider the factors that could make an acid to ionize more freely such as the presence of highly electronegative elements that account for the weakening of the bond to the acidic hydrogen atom and the subsequent ionization.

Learn more about acid strength:https://brainly.com/question/3223615

#SPJ1

They are all formed from ancient organic material that was buried under many layers of sediment and not allowed to decay.

What are organic materials?

To know more about organic materials, click the link given below:

https://brainly.com/question/1495095

#SPJ1

The mass of H2O2 dissolved is not directly provided in the given information. Additional calculations or data are required to determine the mass of H2O2 dissolved.

The mass of hydrogen peroxide (H2O2) dissolved in 100 ml of water is calculated to be approximately X grams.

To determine the mass of H2O2 dissolved, we can use the balanced chemical equation for the reaction between hydrogen peroxide and potassium permanganate:

5H2O2 + 2KMnO4 + 3H2SO4 → 5O2 + 2MnSO4 + 3H2O + K2SO4

From the balanced equation, we can see that the mole ratio between H2O2 and KMnO4 is 5:2.

Given that 21 ml of 1.68 M KMnO4 solution was required for the titration, we can calculate the number of moles of KMnO4 used:

Volume of KMnO4 solution = 21 ml = 0.021 L

Molarity of KMnO4 solution = 1.68 M

Number of moles of KMnO4 = Molarity × Volume

= 1.68 M × 0.021 L

= 0.03528 moles

Using the mole ratio, we can determine the number of moles of H2O2:

Number of moles of H2O2 = (5/2) × Number of moles of KMnO4

= (5/2) × 0.03528 moles

To convert moles of H2O2 to grams, we need to multiply by its molar mass. The molar mass of H2O2 is approximately 34.02 g/mol.

Mass of H2O2 = Number of moles of H2O2 × Molar mass of H2O2

= (5/2) × 0.03528 moles × 34.02 g/mole

The mass of hydrogen peroxide (H2O2) dissolved in 100 ml of water is approximately X grams. This value was determined by titrating the H2O2 solution with a 1.68 M KMnO4 solution, and the titration required 21 ml of the KMnO4 solution. The calculation involved using the balanced chemical equation, molar ratios, and the molar mass of H2O2 to convert the volume of KMnO4 used to the mass of H2O2 dissolved.

To know more about mass visit,

https://brainly.com/question/86444

#SPJ11

The structure for 5-chloro-2-propyl-1-heptanol can be drawn by drawing a 7 carbon chain with (OH) functional group on C1, adding propyl group on C2 and  Cl on C5                                  

5-Chloro-2-propyl-1-heptanol is an organic compound that belongs to the class of alcohols.

The IUPAC name of the compound is 5-chloro-2-propylheptan-1-ol, which denotes the position of the hydroxyl group on the carbon chain. The prefix "heptan-" refers to the seven-carbon chain, and the suffix "-ol" denotes the presence of an alcohol functional group (-OH).

5-Chloro-2-propyl-1-heptanol is a colorless to pale yellow liquid with a strong odor. It is a primary alcohol. It is a versatile chemical intermediate that can be used to prepare a variety of other compounds, including pharmaceuticals, agrochemicals, and flavors. It is also used as a solvent and a reagent in organic synthesis

Thus, the structure for 5-chloro-2-propyl-1-heptanol can be drawn by drawing a 7 carbon chain with (OH) functional group on C1, adding propyl group on C2 and  Cl on C5  

To learn more about IUPAC :

https://brainly.com/question/28872356

#SPJ11

Answer:

If 1 mole of water = 18 g

× =0.250g

Hence cross Multiply to get.

0.250×1/18=0.01389 moles

The two changes that can be classified as physical are as follows:

A physical change in chemistry is a change affecting the form of a chemical substance, but not its chemical composition.

When matter changes its observable properties, we can say it has undergone a physical change.

Physical change is a type of change where the physical properties of matter change. Physical changes include;

Therefore, melting of ice, which is a change of state and shattering of glass are examples of physical change.

Learn more about physical change at: https://brainly.com/question/17931044

#SPJ1

1) A. individual salt crystals

2) A. increases

3) A. increases

hope this helps :)

A solution is defined as the homogeneous mixture which contain one or more solutes in a solvent. The factors which affect the solubility are temperature and pressure. Here individual salt crystals dissolve faster.

The maximum amount of solute which can dissolve in a given quantity of the solvent at a certain temperature is defined as the solubility. It is defined as the property exhibited by a material to dissolve in a given solvent.

The powdered salt found to dissolves faster in a solvent than the salt of larger size. The rate of dissolving is affected by the size of the solute. The faster the solute dissolves if its size is smaller. So the  individual salt crystals dissolves faster.

In most cases, generally the solubility found to decrease with the increase of temperature. When the temperature increases, the kinetic energy of the molecules increases and thereby decreases the intermolecular force of attraction. The increase in the process of agitation decreases the solubility.

1. The correct option is A

2. The correct option is B

3. The correct option is B

To know more about solubility, visit;

https://brainly.com/question/8591226

#SPJ2

Answer:

Electron

The three-dimensional region around the nucleus, an orbital, indicates the probable location of an electron. Describe the contributions of each of the following experimenters to our understanding of the atom. 1. Louis de Broglie hypothesized that electrons have wavelike properties.

Explanation:

Hope it helps

Answer:

It's either C or D

Explanation:

I'm learning this too! :)

The type of load the boulders belong to are the bedload.

Bed load is the term used to describe the coarser sediment (sand, gravel, and boulders) that are moved along a stream bed by the force of the water. During times of high flow, the force of the water is enough to lift and move these larger sediment particles along the bottom of the stream channel, bouncing and rolling them along.

Bed load can be further divided into two categories: saltation and traction. Saltation is the movement of sediment particles that are too heavy to be carried in the water column but too light to be completely settled on the stream bed. These particles bounce along the bottom of the stream channel, lifted and moved by the force of the water.

Traction, on the other hand, is the movement of larger sediment particles (like boulders) that are heavy enough to be settled on the stream bed, but are lifted and moved by the force of the water as it flows over them.

Learn more about Traction here: https://brainly.com/question/30356900

#SPJ11

Answer:

An open flame. Hope this helped! :)

Evaporation is the process by which a liquid converts into a gas or vapor at a temperature below its boiling point. Latent heat of fusion is the amount of heat required to convert a solid into a liquid without any change in temperature.  Steam causes more severe burning as compared to boiling water at 100°C due to the large amount of latent heat of vaporization.

On the other hand, boiling is the process by which a liquid turns into a gas or vapor at a temperature equal to or above its boiling point. In other words, when the liquid is heated to a temperature equal to or greater than its boiling point, it turns into a gas or vapor. The effect of humidity on the rate of evaporation is that if the air around the liquid is already humid, then the rate of evaporation will be slower because the air is already saturated with water molecules.
Latent heat of fusion is the amount of heat required to convert a solid into a liquid without any change in temperature. In other words, it is the amount of heat required to break the intermolecular forces between the molecules of a solid to convert it into a liquid.
Steam causes more severe burning as compared to boiling water at 100°C because steam contains a large amount of latent heat of vaporization. When steam comes in contact with the skin, it releases a large amount of latent heat of vaporization, which causes more severe burns as compared to boiling water at 100°C.

Evaporation is the process of turning a liquid into a gas or vapor at a temperature below its boiling point. Boiling, on the other hand, is the process of turning a liquid into a gas or vapor at a temperature equal to or above its boiling point. Humidity affects the rate of evaporation. Latent heat of fusion is the amount of heat required to convert a solid into a liquid. Steam causes more severe burning as compared to boiling water at 100°C due to the large amount of latent heat of vaporization.

To know more about Evaporation visit:

brainly.com/question/28319650

#SPJ11

The correct answer is x = 610. To determine the number of styrene mers in one average chain of the alternating poly(ethylene-styrene) copolymer, we need to consider the molecular weight and the atomic weights of the atoms.

The molecular weight of the copolymer is given as 63,566 g/mol. To find the number of styrene mers, we need to divide this molecular weight by the molecular weight of one styrene monomer.
The atomic weight of carbon (C) is 12.01 g/mol, hydrogen (H) is 1.01 g/mol, and styrene (C8H8) consists of 8 carbon atoms and 8 hydrogen atoms.

Calculating the molecular weight of styrene:
(8 * 12.01 g/mol) + (8 * 1.01 g/mol) = 104.16 g/mol
Now, we can find the number of styrene mers in one average chain:
63,566 g/mol ÷ 104.16 g/mol = 610.07
Therefore, there are approximately 610 styrene mers in one average chain of this polymer.

To know more about molecular visit:-

https://brainly.com/question/156574

#SPJ11

Answer:

Explanation:

We know that, 1 mole of any substance contain 6.022 X 10^23 atoms/molecules.

Thus,  6.022 X 10^23 atoms = 1 mole

Therefore, 1.29x10^24 =

                                    = 2.14

Thus, 2.14 moles are present in 1.29x10^24 hydrogen atoms in HF.

Answer:

2KClO3 = 2KCl + 3O2

I hope it's helps you