______ stainless steels are used for ornamental or decorative applications such as architectural trim, and tend to be brittle.

Answer:

1) 37100000

2) 330000000

Explanation:

1) 3.7 x 10^7 = 37100000

2) 3.30 x 10^8 = 330000000

(Hope this helps can I pls have brainlist (crown)☺️)

Answer:

it pops because the heat and water inside of it

Explanation:

Answer:

when the corn is heated, the water turns into steam, which builds pressure inside the kernel. When it can no longer contain the pressure it pops.

Explanation:

732.806 g of CuSO4 is greater than the maximum amount of CuSO4 that can dissolve (355.25 g), 1750 mL of water would not be able to dissolve 4.6 moles of CuSO4. The solution would become saturated, and any excess CuSO4 would likely remain undissolved as a solid precipitate.

To determine if 1750 mL of water can dissolve 4.6 moles of Copper Sulfate (CuSO4), we need to consider the solubility of CuSO4 in water.

The solubility of a compound indicates the maximum amount of that compound that can dissolve in a given amount of solvent at a specific temperature. In this case, we need to compare the solubility of CuSO4 with the amount we want to dissolve.

Assuming the solubility of CuSO4 in water is 203 g/L at a given temperature, we can calculate the maximum amount of CuSO4 that can dissolve in 1750 mL (1.75 L) of water:

Maximum amount of CuSO4 = Solubility of CuSO4 * Volume of water

Maximum amount of CuSO4 = 203 g/L * 1.75 L = 355.25 g

Next, we can convert the moles of CuSO4 to grams using its molar mass of 159.61 g/mol:

Mass of CuSO4 = Moles of CuSO4 * Molar mass of CuSO4

Mass of CuSO4 = 4.6 mol * 159.61 g/mol = 732.806 g

Since 732.806 g of CuSO4 is greater than the maximum amount of CuSO4 that can dissolve (355.25 g), 1750 mL of water would not be able to dissolve 4.6 moles of CuSO4. The solution would become saturated, and any excess CuSO4 would likely remain undissolved as a solid precipitate.

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Answer:

Explanation:

A nuclear repository would be required to be isolated with barriers in place to keep people out. Ideally, it should be stored underground and away from any underlying waterways, or biosystems so as to avoid contamination. A good example would be the proposed Yucca Mountain repository.

I hope this was helpful and useful.

The radioactive substance has a lot of distinction and variation and needs to be kept aside from the environment and it of reach for most nuclear power plants to discharge the gases.

Learn more about the characteristics that would be taken into consideration.

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Answer:

A- Butyric acid and methylammonium chloride.

Explanation:

This problem is describing the equilibrium whereby hydrofluoric acid decomposes to hydrogen and fluorine gases at 298 K whose equilibrium constant is 8.70x10⁻³, the equilibrium concentrations of all the reactants are both 1.33x10⁻³ M and asks for the initial concentration of hydrofluoric acid which turns out to be 2.86x10⁻³ M.

Then, we can write the following equilibrium expression for hydrofluoric acid once the change, \(x\), has taken place:

\([HF]=[HF]_0-2x\)

Now, since both products are 1.33x10⁻³ M we infer the reaction extent is also 1.33x10⁻³ M, and thus, we can calculate the equilibrium concentration of HF via the law of mass action (equilibrium expression):

\(8.70x10^{-3}=\frac{(1.33x10^{-3} M)^2}{[HF]} }\)

\([HF]=\frac{(1.33x10^{-3} M)^2}{8.70x10^{-3}} }=2.03x10^{-4}M\)

Finally, the initial concentration of HF is calculated as follows:

\([HF]_0=[HF]+2x=2.033x10^{-4}+2*(1.33x10^{-3})=2.86x10^{-3}M\)

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Answer:

7.31 x 10⁵ kJ

Explanation:

To find the energy gained by the iron sample, you need to use the following equation:

Q = mcΔT

In this equation,

-----> Q = energy (J)

-----> m = mass (g)

-----> c = specific heat capacity (J/g°C)

-----> ΔT = T₂ - T₁ = change in temperature (°C)

T₂ represents the final temperature and T₁ represents the initial temperature. After you calculate the value of "Q", you need to convert the energy from joules (J) to kilojoules (kJ).

Q = ? J                                  c = 0.387 J/g°C

m = 24.6 g                         ΔT = 99.8°C - 23.0°C = 76.8°C

Q = mcΔT                                                     <----- Equation

Q = (24.6 g)(0.387 J/g°C)(76.8°)                  <----- Insert values

Q = 731 J                                                       <----- Multiply

1,000 J = 1 kJ

   731 J                  1 kJ
--------------  x  -------------------  =  7.31 x 10⁵ kJ
                          1,000 J

Answer:

mechnical energy is the answer bro

Answer:

9.033 × 10²³ molec C₂HF₃O₂ x (2 O atoms / 1 molec C₂HF₃O₂) = 1.8066 x 10²⁴ O atoms

There are 3.01 × 10^23 atoms of oxygen in 1.51×10^23 molecules of trifluoroacetic acid, C2HF3O2.

The formula of trifluoroacetic acid is C2HF3O2

Number of moles of the trifluoroacetic acid(C2HF3O2)is given using the approach;

1 mole of the compound contains 6.02 × 10^23 molecules

x moles of the compound contains 1.51 × 10^23 molecules

x = 1.51 × 10^23 molecules × 1 mole /6.02 × 10^23 molecules

x = 0.25 moles of  trifluoroacetic acid.

Now;

Number of O atoms in the sample = 0.25 × 2 × NA

Where; NA = Avogadro's number

Number of O atoms in the sample = 0.25 × 2 × 6.02 × 10^23 atoms

= 3.01 × 10^23 atoms

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Answer:

Dmitri Mendeleev=Russian chemist, Albert Ghiorso=American scientist

Explanation:

The statement "The orbit of a comet is one of nature's cycles" is True because The orbit of a comet is a natural cycle that follows the laws of physics and determines its path around the Sun.

Comets have highly elliptical orbits that can take them far away from the Sun and then back again, following a predictable cycle that can span many years or even centuries. This cycle of orbit is a natural phenomenon that occurs due to the gravitational forces of the Sun and other celestial bodies.

Comets are celestial bodies that follow an elliptical orbit around the Sun. Their orbit is determined by the gravitational forces acting on them from the Sun and other celestial bodies, such as planets and moons. The path of a comet is predictable and follows the laws of physics, which govern the motion of all celestial bodies.

As the comet approaches the Sun, it heats up and releases gas and dust, creating a glowing tail that can be seen from Earth. This tail always points away from the Sun, due to the solar wind blowing the gas and dust particles away from the comet.

The orbit of a comet is a natural cycle that repeats itself over time. Depending on the shape and size of the comet's orbit, its cycle can span many years or even centuries. For example, Halley's Comet, one of the most famous comets, has an orbit that takes it around the Sun every 76 years. This means that it follows a predictable cycle, and astronomers can calculate when it will be visible from Earth again.

In summary, the orbit of a comet is a natural cycle that is determined by the laws of physics and the gravitational forces of celestial bodies. This cycle determines the path of the comet around the Sun and can span many years or even centuries.

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Answer:

Aluminium

Potassium

Answer: Hydrogen

Sodium Magnesium Aluminium

Potassium Calcium Gallium

Rubidium Strontium Indium

Caesium Barium Thallium

Explanation:

Answer:

Mass of Cr = 0.25376 gram

Moles of Fe = 0.0011875

Mass of Te = 0.05472 gram

Moles of Ti = 7.9764

Explanation:

Given:

Elements     Moles      Mass

Cr               0.00488

Fe                                66.5 mg = 0.0665

Ti                 48

Hg                                1.60 kg = 1600

Computation:

Mass = Atomic mass x moles

Moles = Mass / Atomic mass

Atomic mass

Cr = 52 u        

Fe = 56 u                        

Te = 127.6 u  

Hg = 200.59 u

Mass of Cr = 0.00488 x 52

Mass of Cr = 0.25376 gram

Moles of Fe = 0.0665 / 56

Moles of Fe = 0.0011875

Mass of Te = 1.14 x 10⁻³ x 48

Mass of Te = 0.05472 gram

Moles of Ti = 1600 / 200.59

Moles of Ti = 7.9764

The predicted concentration of IO₃⁻ needed to start the precipitation titration is 1.703 × 10⁻⁷ M

The dissociation of zinc (II) iodate can be expressed as:

\(\mathbf{Zn (IO_3)_2 \to Zn^{2+} + 2IO_3^-}\)

Given that the solubility product constant Ksp value = 3.9 × 10⁻⁶

For the above dissociation,

\(\mathbf{Ksp = [Zn^{2+ }] [IO_3^-]^2}\)

Since \(\mathbf{ [Zn^{2+ }] = [Zn(NO_3)_2] = 0.229 \ M}\)

∴

\(\mathbf{3.9\times 10^{-8} =(0.229) \times [IO_3^-]^2}\)

\(\mathbf{ [IO_3^-]^2 = \dfrac{3.9\times 10^{-8} }{(0.229)}}\)

\(\mathbf{ [IO_3^-]^2 = 1.703 \times 10^{-7} \ M}\)

Therefore, we can conclude that the initial predicted concentration of IO₃⁻ needed to start the precipitation titration is 1.703 × 10⁻⁷ M

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Answer:

The volume of Component 1 is 36 cubic inches.

Explanation:

To calculate the volume of a composite solid, we need to determine the individual volumes of the different components and then add them together.

In this case, the composite solid consists of multiple components with the following dimensions:

Component 1:

Length: 4 inches

Width: 3 inches

Height: 3 inches

To find the volume of Component 1, we multiply the length, width, and height together:

Volume of Component 1 = Length x Width x Height = 4 in x 3 in x 3 in = 36 cubic inches

Therefore, the volume of Component 1 is 36 cubic inches.

Please provide the dimensions of the remaining components of the composite solid, and I will calculate the total volume by summing up the individual volumes.

Answer:

potential energy to kinetic energy

Explanation:

In this system, the energy transformation is from potential energy to kinetic energy.

Potential energy is the energy due to the position of a body.

Kinetic energy is the energy due to the motion of a body.

When the rubber band is stretched, it stores elastic potential energy. This energy is transformed to kinetic energy as it is release and it begins its motion.

Therefore, potential energy is transformed to kinetic energy.

The volume of 12 gas forms when 21 L Cl2 react at STP is 21 L.

To determine the volume of 12 gas (I assume you mean I2 gas) formed when 21 L of Cl2 reacts at STP (standard temperature and pressure), we need to use the ideal gas law equation.

The ideal gas law equation is given by:

PV = nRT

Where:

P = pressure

V = volume

n = number of moles

R = ideal gas constant

T = temperature

At STP, the pressure is 1 atm, and the temperature is 273.15 K.

From the balanced equation, we can see that the molar ratio between Cl2 and I2 is 1:1. So, if 21 L of Cl2 reacts, it will produce an equal volume of I2 gas.

Given that the volume of Cl2 is 21 L, we can assume the volume of I2 gas formed will also be 21 L.

Therefore, the volume of I2 gas formed is 21 L.

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The first fact that could be useful to answer to this question is that:

Red is the lowest energy visible light and violet is the highest.

Then, our list starts with Red.

Now, let me explain the other colors with the following picture:

From red to violet, energy increases. So, the correct answer option for this question would be:

red, orange, yellow, green, blue, indigo, violet

Answer:

To determine the change in mass of A over the given time period, we need to find the difference between the initial mass of A and the final mass of A.

From the given table, we can see that the initial mass of A at t = 0 (start time) is 12.4 g and the final mass of A at t = 60 minutes (end time) is 6.2 g.

Therefore, the change in mass of A over 60 minutes is:

Final mass of A - Initial mass of A

= 6.2 g - 12.4 g

= -6.2 g

The negative sign indicates that the mass of A decreased over time, which means that A underwent some kind of reaction or process that caused it to lose mass.

The change in mass of A over 60 minutes is -6.2 grams.

To determine the change in mass of A over 60 minutes, we need to compare the initial mass to the final mass.

From the given information, we can see that the mass of A decreases over time.

Let's calculate the change in mass.

Initial Mass of A: 12.4 g

Final Mass of A: 6.2 g

Change in Mass of A = Final Mass of A - Initial Mass of A

= 6.2 g - 12.4 g

= -6.2 g

The change in mass of A over 60 minutes is -6.2 grams.

Note that the negative sign indicates a decrease in mass.

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Answer: The final pressure inside the tank is 8.41 kPa.

Explanation: We can use the combined gas law to solve this problem, which relates the pressure, volume, and temperature of a gas:

(P1V1)/T1 = (P2V2)/T2

where P1, V1, and T1 are the initial pressure, volume, and temperature, respectively, and P2, V2, and T2 are the final pressure, volume, and temperature, respectively.

We are given P1 = 25.0 kPa, T1 = -50 C = 223 K, and V1 is unknown. We also know that the temperature decreases by a factor of three, so T2 = T1/3 = 223/3 K.

To find V2, we need to assume that the steel container is rigid and its volume remains constant. Therefore, V1 = V2, and we can cancel out the volume from the equation:

P1/T1 = P2/T2

Substituting the values, we get:

P2 = P1 * T2 / T1 = 25.0 * (223/3) / 223 = 8.41 kPa

Therefore, the final pressure inside the tank is 8.41 kPa.

Answer:

So if pressure of a gas is increased by 25%, the volume of a gas is decreased by 25%.

Explanation:

False. The number of transporters present in a cell membrane does not directly correspond to the rate at which solutes may diffuse.

Transporters are proteins that span the cell membrane and actively transport specific molecules across the membrane, against their concentration gradient, using energy from ATP. They do not increase the rate of diffusion of solutes which is passive movement of solutes from high concentration to low concentration areas.

Diffusion rate is determined by several factors, including the concentration gradient of the solute, the permeability of the membrane to the solute, and the temperature. The presence of transporters may affect the overall rate of solute transport across the membrane, but this is not the same as the rate of diffusion.

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240.1g is the mass of sodium propanoate. Mass was widely considered to be tied to the amount of matter within a physical body.

A body's mass is an inherent quality. Prior to the discoveries of the atom or particle physics, it was discovered that, despite having the same quantity of matter in theory, various atoms and elementary particles had varied masses. There are several conceptions of mass in contemporary physics that are theoretically different but practically equivalent. The resistance of the body to acceleration (alterations of velocity) in the presence of a net force may be measured experimentally as mass.

pH =Pka + log [salt]/[acid]

4.87=4.87+ log [salt]/[1]

4.87=4.87+ log [salt]/[1]

[salt] = 10 mol dm⁻³

mole = molarity ×volume

mole = 10×0.25

          =2.5

mass = 2.5×96.07

        = 240.1g

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The density of the rectangular block is 1.07 g/mL.

From the question, we have the mass of the rectangular block as 121g

The dimensions of the block are given as follows;9.1cm by 5.4cm by 2.3cm

So we have the volume of the block as; 9.1cm × 5.4cm ×  2.3cm = 113 cm^3

Let us recall that; 1 cm^3 = 1 mL, so 113 cm^3 = 113 mL

Having said that, we must also remember that;

Density = Mass/volume

Density = 121g/113 mL

Density = 1.07 g/mL

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Answer:

a

Explanation:

a

Answer:

A

∆H = 28 kJ/mol, ∆S = 0.109 kJ/(mol-k)

Explanation:

A P E X

The spontaneous reaction at 298 K is the one having

ΔH = 28 kJ/mol, ΔS = 0.109 kJ/(mol-K)

We know the formula of Gibb's free energy as-

ΔG = ΔH - TΔS

ΔG = 28 - (298 × 0.109)

ΔG = -4.48

If a reaction is spontaneous, change in Gibb's free energy is negative and change in entropy is positive.

Therefore, The spontaneous reaction at 298 K is the one having

ΔH = 28 kJ/mol, ΔS = 0.109 kJ/(mol-K)

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Answer: The study of the chemical substances and vital processes occurring in living organisms.

Explanation:

Step 1

The mass of I-131 left in the body could be calculated as follows:

--------

Step 2

Data provided:

M = 5 μg (1 g = 1000000 μg) => 5 μg x (1 g/1000000 μg) = 5x10^-6 g

Mo = 5 g

Half-life = 8 hours = 8 h

-------

Step 3

Procedure:

Answer: t = 159 h (approx.)

Answer:

you can use math wa, it helps