consider the following reaction for the decomposition of hi at a certain temperature 2hi(g) --> h2(g) i2(g) the average rate of disappearance of hi over the period from t

Answer:

Sink

Explanation:

Density is defined as the amount of substance per unit volume, and is given by the formula below:

Density= mass ÷volume

Given that mass and volume, calculate the density of the substance:

Density of substance

= 14.5 ÷8

= 1.8125 g/mL

Compare the density of the substance with that of the medium it is place in, for example water:

The density of water is 0.9998395 g/mL, thus the density of the substance is greater than that of water.

Since the substance is more dense than water, it will sink in water.

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Sodium bromide (NaBr) has a molar mass of 102.890 grams per mole.

The weight of one mole of a sample is referred to as the molar mass. Multiply the subscript (number of atoms) by the atomic mass of each component of the molecule to determine its molecular mass, and then add the masses of all the components together.

We first obtain the atomic weights of the individual elements in a periodic table in order to calculate the molar mass of a molecule. Then, we multiply the total number of atoms by each one's atomic mass. The molar mass is obtained by combining all of the atomic masses.

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Answer:

A. 32 g

Explanation:

Density = 2.7 g/cm3

Volume = 2 x 2 x 3 = 12 cm3

Mass = dV = 2.7 x 12 = 32.4 g or 32 g

Answer:

Calcium as carbon is insoluble in water

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The substance is a gas because its solubility decreases with temperature.

A solution is formed when a solute is dissolved in a solvent. We know that the solubility has to do with how much of the solute in mass or moles that is able to be dissolved in the solvent at a given temperature. This shows that the temperature is very important when we are looking at solubility.

The solubility of a gas gets lesser and lesser as the temperature of the system increases and this is what we are seeing in the data that is shown in the question above.

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The most likely explanation for what happened halfway through year 15 is D. a sharp decrease in available land.

The term "population" refers to the average number of distinct residents in a particular area or region across time. They are individuals who are part of the same class of creatures. Halfway through year 15, the amount of land available begins to rapidly decline.

Beginning above 400, the line increases above 400 and declines below 350 at year 14, increases over 400 and rises to over 400 and drops to 200 at year 16, and so on.

Due to unfavorable weather and a lack of food, the number of rabbits drastically decreases during the cold winters and scorching summers. The population grows when the conditions are good, such as in the spring and summer, and the amount of land accessible shrinks as a result. As a result, there will be a dramatic drop in the amount of land that is available.

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The indicate alkanes in terms of e/z stereoisomer configuration is classified.

What is stereoisomer classification?

stereoisomer are the molecule that have the same molecular formula and sequence of bonded atoms.

It have chemical bond but they have different spital arrangments. Stereoisomer have two types

Configurational and conformational.

Sol-

stereoisomer of alkanes A is Z higher priority in each carbon oriented.

Thus the stereochemisty of alkanes C can be classified as Z.

And the stereochemisty of alkanes D is classified as non of either as per the question.

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This hydrogen molecule (H2) covalent bonding model begins with 2 separate hydrogen atoms.

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Answer:

One mole of O2 will have approximately the same mass as one mole of methanol (CH3OH).

Recall that: mole = mass/molar mass

Thus, one mole O2 will have a mass of:

                       mass = mole x molar mass

                                   = 1 x 32

                                     = 32 g

One mole of CH3OH = mass/molar mass

           mass = 1 x 32

                         = 32 g

Hence, 1 mole of O2 will have the same mass (32 g) as 1 mole of CH3OH

As a reminder, the atomic mass of an atom equals the mass of a mole of this atom.

Just so you know, a mole is defined as a quantity of 6.02x10^{23} things.

We know that the atomic mass of Oxygen is 16 so one mole of O2's mass is 16*2=32g.

So I guess we need to figure out something which a mole of will weight 32 g.

You can pick Ethanol which formula is CH3OH.

C has an atomic mass of 12

H has an atomic mass of 1

O has an atomic mass of 16

So one mole of CH3OH weights 12+(3*1)+16+1=32g which is the same amount.

Explanation:

In light reactions,

Input: light, water, NADP+, ADP

Output: O₂, ATP, NADPH

Not input or output: glucose, CO₂,G₃P

What is light reactions?

The energy storage molecule ATP and the reduced electron carrier NADPH are produced by the light-dependent reactions often called as light reaction using light energy, which is required for the subsequent stage of photosynthesis. Light reactions in plants occur in the thylakoid membranes of organelles referred to as chloroplasts.

The energy of sunshine is used in the light reactions to oxidize water (the electron donor) to O2, transfer the electrons to NADP+, and produce NADPH. ADP is transformed into ATP using some light energy. The Calvin cycle, which generates sugar, is then driven by the NADPH and ATP created.

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Complete question

From the following choices, identify those that are the inputs and outputs of the light reactions. (Recall that inputs to chemical reactions are modified over the course of the reaction as they are converted into products. In other words, if something is required for a reaction to occur, and it does not remain in its original form when the reaction is complete, it is an input.)

Choices are: light, water, NADP+, ADP, O₂, ATP, NADPH, glucose, CO₂,G₃P

Drag each item to the appropriate bin. If the item is not an input to or an output from the light reactions, drag it to the "not input or output" bin.

The first component is a six-carbon linear structure. Then we'll need to add a methyl group to a five-carbon linear structure.

Constitutional isomers:

This methyl group can be linked to either carbon 2 or carbon 3 in the carbon chain. Finally, we can make a four-carbon linear structure by adding two methyl groups. This addition can be done with carbon 2 alone or with carbon 2 and carbon 3 together.

The constitutional isomers have the same chemical formula, but their atom connections are different. Chain isomers, position isomers, and functional group isomers are the three forms of constitutional isomers.

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The pH of a 1 × 10-² molar aqueous solution of H2SO4 is 2.

pH is the degree of acidity or alkalinity of a solution. The pH of a solution can be calculated by using the following formula;

pH = - log {H+}

According to this question, the concentration of 1 × 10-² molar aqueous solution of H2SO4. The pH of this solution can be calculated as follows:

pH = - log {0.01}

pH = 2

Therefore, the pH of the aqueous solution is 2.

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Answer: a annular eclipse

Explanation:

1-bromo-2-methylpropane undergoes an Sn2 reaction with the methoxide to yield 1-methoxy-2-methylpropane (isobutyl methyl ether) and the bromide ion. Please see the reaction mechanism shown in the attached material.

Alkyl halides are excellent electrophiles because of the polar carbon-halogen bond that provides both the electrophilic carbon atom and the excellent leaving group in the form of the halide ion. When attacked by a nucleophile (such as the methoxide ion), they undergo an Sn2 reaction (bimolecular nucleophilic substitution).

The reaction mechanism of an Sn2 reaction consists of a single phase: the simultaneous attack by the nucleophile and the abstraction of the leaving group. This process implies that there is a transition state that contains a quasi-pentavalent carbon atom, as one bond is forming and the other is being dissolved.

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Answer:

Ionic lattice is a Gaint structure where metal and non-metal is ionicly bonded by electrostatic attractions between the ions. This structure has strong intermolecular forces which is why the ionic lattice is in form of hard crystals.

Explanation:

If you need explanation don't hesitate to ask.

Answer:

An ionic compound is a giant structure of ions, the ions have a regular, repeating arrangement called an ionic lattice.

We won't be able to use Polaris to determine the latitude if we are present south of the equator because from the south we can't see the Polaris.

We can determine latitude by measuring the angle of the North Star, which is called Polaris that is present above the horizon. There is no similarity to Polaris in the South, but to find your latitude if you are in the Southern hemisphere you can use a band, called the Southern cross and two stars called the Southern Pointers. Polaris cannot be seen from the south of the circuit. The altitude of a star is the estimation in degrees of the angle of the star above the horizon. which has an unusual name, the zenith. Polaris is used to determine the star is by no means the brightest star in the sky, and cannot help you determine longitude at all, as it is always on the meridian.

So we can conclude that Polaris is pointing directly toward the north pole there is no equivalent of Polaris in the South.

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Answer:

Where's the actual question so we can help?

Explanation:

I don't see a question I can help with

The variables of the ideal gas equation and their units of measurement are as follows:

The ideal gas equation is an equation that shows the relationship between the four parameters used in gas measurements.

The four variables are:

The ideal gas equation is given below:

PV = nRT

where:

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Answer:

ggggygyggyygygygygyggy

Explanation:

What's this for?

Answer:

i didn't understand the question properly but i think the answer will be that amount of hydrogen will decrease while amount of oxygen will be same

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The gauge pressure of air in the tank is Pg= 1.076 psi

Gauge pressure (sometimes written as "gauge pressure") is measured relative to the local atmospheric pressure. Gauge pressure is thus zero when the pressure is the same as atmospheric pressure. Gauge pressure is indicated by pg, and is related to absolute pressure as follows: pg = p - pa, where pa is the local atmospheric pressure.

Given these data

Density of air = 1.225 kg/m3

Density of water = 1000 kg/m3

Note that the absolute pressure of air in the tank = 100kpa

Acceleration due to gravity = 9.8 m/s2

P=hρg

100 = h * 1000* 9.8

h = 98m

So replacing the value of h to calculate the atmospheric pressure

P=hρg

P= 98 *1.225*9.8

P= 1176.49

Substitute these values into the formula

Pg= p - pa,

Pg= 1176.49-100

Pg= 1.076 psi

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The chemical process known as dehydration synthesis, also known as a condensation reaction, involves the covalent bonding of two molecules to create a new molecule while simultaneously releasing a water molecule.

Complex carbohydrates, proteins, DNA, and RNA are just a few of the molecules that are formed via dehydration synthesis processes and are crucial to human health.

Dehydration synthesis forms covalent bonds between sugar molecules. The hydroxyl (-OH) group from one reactant joins with the hydrogen atom from the other to generate water throughout the reaction, while the leftover oxygen forms a glycosidic bond that binds the two molecules together. Repeated dehydration synthesis of individual glucose molecules (monomers) can result in the formation of a polymer, which is a long chain or branched chain structure.

Dehydration synthesis processes, in which one monomer establishes a covalent connection to another monomer (or expanding chain of monomers), release a water molecule in the process, are frequently used to create large biological molecules. Dehydration stands for the loss of the water molecule and synthesis for the development of a new bond, making it easy to recall what occurs.

The methods through which monomers can combine to produce polymers are quite diverse. For instance, starch, cellulose, and glycogen are all made up of glucose monomers. These three polysaccharides, which are categorized as carbohydrates, were created as a result of several glucose monomer-to-glucose dehydration synthesis processes. These three distinct polysaccharides, however, have varied characteristics and functions because of the way that glucose monomers combine, particularly the positions of the covalent connections between linked monomers and the orientation (stereochemistry) of the covalent bonds.

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Convert the temperature into Celsius from Fahrenheit is C = 1252.22°C

To convert Fahrenheit into Celsius we need to go through some simple steps :

C = (2286 - 32) 5 / 9

C = 2254 x 5 / 9

C = 1252.22°C

The average kinetic energy of the particles in an object is measured by its temperature. The velocity of these particles likewise increases as the temperature rises. A thermometer or a calorimeter is used to determine the temperature. The direction of heat transfer when two bodies with different temperatures are kept in touch depends on the temperature. The kelvin is the SI unit (K).

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The soda and air will bubble, increasing the chances of an explosion.

Carbonation in soda is made up of carbon dioxide or CO2 bubbles. Carbonated beverages are injected with this colorless and odorless gas under high pressure during manufacture until the liquid is supersaturated with gas. Individuals determined, at the discretion of the Federal Aviation Surgeon, to have a static or non-progressive disqualifying condition.

In soda ash, the dispersed phase is a gas and the dispersion medium is a liquid. Soda ash is an example of a gas that dissolves in a liquid. Shaking the can introduces many small air bubbles into the liquid, so the dissolved gas is more likely to combine with existing air bubbles and evaporate rather than form new air bubbles. By avoiding the difficult step of shaking and frothing the soda, the gas can escape faster creating more fizz.

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The inorganic chemical with the formula MnO2 is manganese dioxide. Pyrolusite, a naturally occurring mineral and the primary manganese ore and component of manganese nodules, is this dark-brown to blackish solid.

Manganese is a chemical element with the atomic number 25 and the letter Mn in its name. In minerals, it is a hard, brittle, silvery metal that is frequently present next to iron. Manganese is a transition metal used mostly in the production of stainless steels and other industrial alloys.

Assume X weighs 100

Moles of Mn

= 54.94 /

63.3 (1 /54.94 ) = 1.51

Moles of O

= 16.00 /

36.7 (1 /16.00 ) = 2.29

the number of moles divided by the smallest (1.15 mol)

Mn O

1.15 /1.15 = 1.00

2.29 /1.15 = 1.99

Empirical Formula

MnO2

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1. The total energy of the universe is zero.

2. Because each part of the Earth's system is interrelated, changes in one part can lead to changes in one or all other parts.

For example, when a volcano erupts, lava can flow to the surface and block nearby valleys.

This new obstacle affects the local drainage system by creating lakes and diverting rivers.

Volcanic ash and gases that can be released during eruptions can be blown high into the atmosphere and affect the amount of solar energy that can reach the surface. Temperatures across the hemisphere could drop as a result.

3. Solar radiation warms the atmosphere and is fundamental to atmospheric composition.

Atmospheric radiation is the flow of electromagnetic energy between the sun and the surface of the earth influenced by clouds aerosols and gases in the earth's atmosphere. This includes both solar radiation sunlight and longwave thermal radiation.

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Answer:

3 of the 4 are elements

Explanation:

An element can be found on the periodic table, and are only composed of one type of atom. For example, carbon is an element because you can find it on the periodic table. Fire isn't an element because you can't find it on the periodic table. A short-cut to see if something is an element is to look at the number of capital letters in the formula. If it only has one capital letter, it is an element. If it has two or more, it is a compound. This works because elements always have only one capitalized letter. For example, Ne has a capitalized N. O has a capitalized O. This only works if you are given the molecular formula and not the name, so looking at the periodic table is the best thing to do. Oxygen is an element, Sodium chloride is a compound, Gold is an element, and Neon is an element

According to the Gaussian distribution model, 8.8 x [tex]10^{11}[/tex][tex]cm^{-2}[/tex] energy is required to design the implant setup.

A probabilistic model called a "Gaussian mixture model" posits that all of the data points were produced by combining a limited number of Gaussian distributions with unknown parameters.

First, the mean and covariance functions of a Gaussian distribution model are the only variables that matter. Due to the fact that just the first and second order moments of the process need to be specified, this attribute makes model fitting easier. Second, it's not too difficult to solve the prediction problem using Gaussian distribution model.

Given:

At z = 50nm

C (50nm) = 1 x [tex]10^{16} cm^{-3}[/tex]

C (50nm) / Cp = 0.1

Calculations:

Using the Gaussian distribution model, the concentration as a function of depth can be related to peak concentration, Cp:

[tex]Cz = Cp * exp ( - \frac{(z - Rp)^2}{2\Delta R^2p} )[/tex]

Taking log on both sides,

[tex]\sqrt{2ln10}[/tex] = Rp – 0.05 / ΔRp = 2.416

To find an energy that gives Rp – 2.15 ΔRp = 0.05µm

(By trial and error method)

100 Kev Rp = 0.125, ΔRp = 0.035, Rp – 2.15 ΔRp = 0.048µm

120 Kev Rp = 0.15, ΔRp = 0.040, Rp – 2.15 ΔRp = 0.064µm

Interpolating linearly between 100 and 120 Kev gives about 103Kev.

At this energy, ΔRp = 0.035 µm

Therefore,

[tex]Q = \sqrt{2\pi } \Delta Rp Cp[/tex] = 8.8 x [tex]10^{11}[/tex][tex]cm^{-2}[/tex]

Result:

8.8 x [tex]10^{11}[/tex][tex]cm^{-2}[/tex] energy is required.

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Answer:

Al2(SO4)3 + 2 K3PO4 → 2 AlPO4 + 3 K2SO4

Explanation:

The balanced chemical equation for the given chemical reaction is Al₂(SO₄)₃ + 2 K₃PO₄[tex]\rightarrow[/tex] 2 AlPO₄ + 3 K₂SO₄.

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

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Answer:

Ms French

Explanation:

1km is equal to 1000m so ms French biked further