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2. Construct Arguments Suppose you are a
construction worker. You use aluminum for a
window frame, copper for wiring, and iron for
nails. Use the properties of these materials to
justify their specific uses.

A player can obtain the desired outcome by sticking to their initial strategy, according to the Nash equilibrium, a decision-making theorem in game theory. Each player's approach in the Nash equilibrium is the best one given what the other players have decided.

A Nash equilibrium is a situation in which no participant would profit from altering their current course of action. This implies that even if a player were to know the plans of every opponent, they would still decide to stick with their original plan. Assuming that the other players maintain their initial plans, a player does not benefit from changing their approach under the Nash equilibrium. There could be several Nash equilibria in a game, or none at all. One of the fundamental ideas in game theory is Nash equilibrium.

Assign A the probability of playing H and (1p) of playing T, and B the probability of playing H and (1q) of playing T to calculate the mixed-strategy Nash equilibrium. In this game, the mixed-strategy Nash equilibrium is for each player to select H or T at random with p = 1/2 and q = 1/2.

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A 10.0 g sample of Krypton has a temperature of 25 C at 572 mmHg and volume in mililiter of the krypton gas is 375ml

An ideal gas is the thereotical gas that is considered to be composed of point particles that move randomly and do not interact with each other and h]gases in general are ideal when they are at high temprature and low pressure

Here given data is

Mass = 10.0 g

Temprature =  25 °C

Pressure =  572 mmHg

So formula is PV = nRT

V = nRT/P

So n = 10 gram × 1mole/83.80 gram = 0.119 mole

R = 0.082

T = 25 °C = 298K

P = 572 mmHg = 0.752632 atm

V = nRT/P

V = 0.119 mole×0.082×298K/0.752632 atm

V = 0.375 L = 375ml

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Answer: Titanium dioxide

Empirical formula of the metal fluoride is CuF₂

Empirical formula is the simplest whole number ratio of atoms present in a compound

Here given data is

Mass of copper heated =  23.02 gram

Mass of copper fluoride formed = 37.87 g

We have to calculate gas in copper fluoride = x

37.87 g = 23.02 gram + x

x = 37.87 g - 23.02 gram

x = 14.85 g

Moles of copper

23.02 gram/63.546g/mol = 0.362 mol

Moles of Florine

14.85 g/18.998g/mol =0.781 mol

For the empirical formula divide the smallest mole of an element with all the moles of elements present in the compound

Copper = 0.362 mol/0.362 mol = 1

Florine =0.781 mol / 0.362 mol = 2.15

It means 1 : 2

So the empirical formula of the metal fluoride is CuF₂

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If a scientist describes a piece of glass as, “clear, one pound, and square.” the thing he is MOST likely describing are C. physical properties

This refers to the characteristics of a property that is measurable, and its shape can be observed, without any necessary outward or external change such as density, size, volume, etc

Hence, it can be seen that based on the given description, it is stated that a piece of glass contains the following properties: “clear, one pound, and square.” and this shows its physical properties.

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The number of moles in 500g of CaO, CaCO₃, C₁₂H₂₂O₁₁, NaOCl, and CO₂ are 8.93, 5, 1.46, 6.71 and 11.36 moles.

A mole is a scientific unit that is used to determine the number of atoms, molecules, ions, etc. The number of entities in 1 mole was found 6.023 × 10 ²³ per mole which is known as Avogadro’s constant.

a) Given, the mass of each substance = 5 ×10² g

The molar mass of CaO = 56 g

The number of moles in 5 ×10² g of CaO = 500/56 = 8.93 moles

The number of molecules in 8.90 moles of CaO = 8.93× 6.023 × 10 ²³

                                                                               = 53.77 ×10²⁴ formula unit

b) The molar mass of CaCO₃ = 100 g

The number of moles in 5 ×10² g of CaCO₃ = 500/100 = 5 moles

The number of molecules in 5 moles of CaO = 5× 6.023 × 10 ²³

                                                                               = 3.0 ×10²⁴ formula unit

c) The molar mass of C₁₂H₂₂O₁₁ = 342.3 g/mol

The number of moles in 5 ×10² g of  C₁₂H₂₂O₁₁ = 500/342.3 = 1.46 moles

Number of molecules in 8.90 moles of C₁₂H₂₂O₁₁ = 1.46 × 6.023 × 10 ²³

                                                                               =   8.8 × 10 ²³

d) The molar mass of NaOCl = 74.5 g/mol

The number of moles in 5 ×10² g of NaOCl = 500/74.5 = 6.71 moles

The number of molecules in 8.90 moles of CO₂ = 6.71× 6.023 × 10 ²³

                                                                               = 4.04 ×10²⁴

e) The molar mass of CO₂ = 44 g/mol

The number of moles in 5 ×10² g of CO₂ = 500/44 = 11.36 moles

The number of molecules in 8.90 moles of CO₂ = 11.36× 6.023 × 10 ²³

                                                                               = 6.84 ×10²⁴

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Specialized structures inside an animal cell function to provide particular functions to these types of cells.

Animal cells are unique in the sense they have a centrosome which is involved in the mechanism of cell division and also lysosome organelles that contain hydrolytic enzymes that degrade chemical compounds inside the cells.

Therefore, with this data, we can see that animal cells are unique because they are composed of unique structures such as the centrosomes used during the cell division and lysosomes used to degrade substances.

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Answer: Gas

Explanation:

When they mix, hydrogen gas is produced.

The pressure is the same at both stages, even though more air particles have been added to the balloon. This is due to chnge in the intermolecular distance between two consecutive particles.

The particle model is one of the scientific theory which explains us the properties of solids, liquids and gases by suggests about that the matter is made of particles, and those particles behaves differently in gases, liquids and solids.

This can be expained as early the particles are less but volume it contain remains same when particles are added in the balloon.

This is due to the reason that the intermolecular distance between two successive particles decreases when particles are added to it.

Thus, we concluded that the pressure is the same at both stages, even though more air particles have been added to the balloon. This is due to chnge in the intermolecular distance between two consecutive particles.

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Based on the x-ray,  the thing that could have caused the injury in both of these images is that the wounds and cave-in of the broken bone can point to blunt force trauma, which may have resulted from a fall and hitting his head or from an animal striking him in the head.

It gave precise information necessary for a precise forensic reconstruction of King Tut. The 1,700 digitized X-ray images in cross section created by the CT scan showed the mummy from head to toe. It displayed a gray head, neck vertebrae, a hand, numerous pictures of rib cages, and a skull cut in half.

Note that researchers published its findings, concluding that the corpse's head was likely broken either during embalming or during research by archeologist Howard Carter's team, which found the mummy in 1922.

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See full question below

The x-ray on the right is pointing out an area on the back and bottom of Tut's skull. The large white part is Tut's skull. Notice the smaller white part that the arrow is pointing to. The separation between these two white areas indicate an injury to Tut's skull. What could have caused the injury in both of these images?

An electric immersion heater is put at the bottom of a large tank of water the water next to the heater becomes warm then warmed water next to the heater energy will travel up from the heater through the particles

The water is heated up from the inside and usually with electricity a strong electric current run through a large element inside the tank to directly heat the water around it and energy will travel up from the heater through the particles and making them faster and further apart and meaning they become less dense and when water is heated with immersion heater the water become less dense due to which the warm water rises up and the cooler water fill its space

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The percent yield of the reaction would be 91.66%.

The percent yield of a reaction is the actual yield from the reaction relative to the theoretical yield of the same reaction.

The percent yield of a reaction is mathematically expressed as follows:

percent yield = actual yield/theoretical yield x 100%

From the equation of the reaction:

[tex]Na_2CO_3 + CaCl_2 --- > CaCO_3 + 2NaCl[/tex]

The mole ratio of [tex]CaCl_2[/tex] to [tex]CaCO_3[/tex] according to the balanced equation is 1:1.

Recall that: mole = mass/molar mass

The molar mass of  [tex]CaCl_2[/tex] is 110.98 g/mol

mole of 17.15 g  [tex]CaCl_2[/tex] = 17.15/110.98

                                     = 0.1545 mol

Equivalent mole of  [tex]CaCO_3[/tex] = 0.1545 mol

Molar mass of [tex]CaCO_3[/tex] = 100.09 g/mol

Mass of 0.1545 mol [tex]CaCO_3[/tex] = 0.1545 x 100.09

                                              = 15.46 g

Thus:

Theoretical yield = 15.46 g

Actual yield = 14.17 g

Percent yield = 14.17/15.46 x 100

                      = 91.66%

In other words, the percent yield of the reaction is 91.66%.

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The pH of a solution with a hydronium concentration of 2.56 x [tex]10^{-6[/tex] M would be 5.59.

The pH of a substance is the degree of acidity or alkalinity of the substance. It is simply a measure of how acidic or basic the substance is.

The pH of any substance is mathematically expressed as:

pH = -log [tex][H^+][/tex]

where [tex][H^+][/tex] is the hydrogen ion concentration.

pH = 14 - pOH

Also,

pH = - log [tex][H_3O^+][/tex]

Where [tex][H_3O^+][/tex] is the hydronium ion concentration.

In this case, the hydronium ion concentration is given as 2.56 x [tex]10^{-6[/tex]M

Thus,

pH = -log 2.56 x [tex]10^{-6[/tex]

    = 5.59

In other words, the pH of a solution that has a hydronium ion concentration of 2.56 x [tex]10^{-6[/tex] M is 5.59.

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Answer:

3.02 atm

Explanation:

To find the final pressure, you need to use the Combined Gas Law:

[tex]\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}[/tex]

In this equation, "P₁", "V₁", and "T₁" represent the initial pressure, volume, and temperature. "P₂", "V₂", and "T₂" represent the final pressure, volume, and temperature. You first need to convert the temperatures from Celsius to Kelvin (1°C = 273 K). You should convert the initial pressure from kPa to atm (1 atm = 101.3 kPa).

P₁ = 536 kPa / 101.3kPa  =  5.29 atm         P₂ = ? atm

V₁ = 2.50 L                                                  V₂ = 3.75 L

T₁ = 75.0 °C + 273 = 348 K                         T₂ = 25.0°C + 273 = 298 K

[tex]\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}[/tex]                                                       <----- Combined Gas Law

[tex]\frac{(5.29atm)(2.50L)}{348K}=\frac{P_2(3.75L)}{298K}[/tex]                                 <----- Insert values

[tex]0.0380=\frac{P_2(3.75L)}{298K}[/tex]                                             <----- Simplify left side

[tex]11.32 = P_2(3.75L)[/tex]                                             <----- Multiply both sides by 298 K

[tex]3.02 = P_2[/tex]                                                           <----- Divide both sides by 3.75 L

Answer:

Explanation:

Thanks

Answer:

Explanation:

Look at the objective lens (3) and the stage from the side and turn the focus knob (4) so the stage moves upward. Move it up as far as it will go without letting the objective touch the coverslip. Look through the eyepiece (1) and move the focus knob until the image comes into focus.

Answer:

What is the question?

Explanation:

The specific heat of the given substance is equal to 0.447 J/g°C. As the energy is absorbed by the substance therefore it is an endothermic process. From the given table the substance can be iron.

The specific heat capacity of a material can be defined as the quantity of heat required to raise the temperature in one unit of material by one-degree Celcius.

When the heat is lost or absorbed, the temperature of the material will be changed following the equation:

Q = mCΔT

Given, the amount of energy absorbed, Q = 18.942 KJ

The mass of the substance, m = 345 g

The change in the temperature = 167.7 - 45 = 122.7°C

The specific heat for the given substance can be determined as:

18.942 × 1000 = 345 × C × 122.7

C = 0.447 J/g°C

Therefore, the specific heat of the substance is equal to 0.447 J/g°C.

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Answer: 2.40 X10^24

Explanation: Utilizing Avogadro's Number of 6.022 X 10^23

112gSi X 1molSi/28.09gSi X 6.022 X 10^23/1molSi = 2.40 X 10^23

Answer:

300m/s2 because when devide 15000 to 150 it will be 300

Acceleration is the the ratio of the force to the mass. Thus acceleration of the rocket weighing 0.005 Kg launching with a force of 1.5 N is 300 m/s².

Force is an external agent acting on a body to change it from the state of rest or motion. There are various kinds of forces, such as nuclear force, magnetic force, frictional force, gravitational force etc.

According Newton's second law of motion, force is the product of mass and acceleration of the body. Thus force increases with an increase in mass.

Given that the mass of the rocket is 0.005 Kg and force exerted is 1.5 N. Acceleration can be find out as follows:

Acceleration  = force / mass

                       = 1.5 N/ 0.005 Kg

                       = 300 m/s².

Therefore, acceleration of the rocket will be 300 m/s².

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Temperature has an impact on the hot air balloon's internal pressure. The molecules move more quickly and forcefully against the interior wall of the balloon as they warm up.

Because the average kinetic energy of the gas molecules in a balloon drops as temperature rises, the frozen balloon shrank. As a result, the molecules move more slowly and collide with the balloon's interior wall less frequently and weakly, causing the balloon to somewhat contract.

These illustrations show how temperature can change the volume of a fixed amount of a confined gas while maintaining a constant pressure are generally accurate: The volume rises with rising temperature and falls with falling temperature.

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The decomposition reaction of sodium carbonate produces  0.094 moles and 2.5 L of carbon dioxide

We know that the decomposition of the one mole of sodium carbonate would produce one mole of carbon dioxide. Hence we need to apply the stoichiometry of the reaction in order to be able to solve the problem.

Number of moles of moles of sodium carbonate = 10g/106 g/mol

= 0.094 moles

Since one mole of sodium carbonate produces one mole of carbon dioxde then 0.094 moles was produced.

Given that;

Pressure = 750. torr or 0.99 atm

Volume = ?

Temperature = 50.°C + 273 = 323 K

Then;

PV = nRT

V =nRT/P

V = 0.094 moles  * 0.082 * 323/0.99

= 2.5 L

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The mass in grams of 23.0 L of propane vapor at STP is 22.968 g, as calculated by the mole concept.

moles = 23/44 = 0.522 moles

Since there are 0.522 moles in a 44 liter, the mass of 23 L of propane is equal to 44 x 0.522, or 22.968 g.

Therefore, 23 liters of propane contain 22.968 g of propane at STP.

The definition of a mole is a measure of substance quantity. It is a unit of measurement used to determine how many elementary particles make up a specific substance.

It has a precise definition of 6.022 1023 elementary entities. Depending on the kind of substance, the elementary unit may be a molecule, atom, or ion. Avogadro's number is the quantity of elementary particles in a mole.

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[tex]{ \boxed{ \purple{ \tt{6.5 \times {10}^{2} }}}}[/tex]

Explanation:-

Applying,

[tex]{ \blue{ \tt{ \frac{Strength \: of \: formic \: acid}{Strength \: of \: HCN}} \: = }} \: \: \: { \green{ \tt{ \sqrt{ \frac{K _{a}(formic \: acid)}{K _{a}(HCN)} }}}}[/tex]

Degree of dissociation of HCOOH [tex] { \red{ \sf{( \alpha) = 14.5\%}}}[/tex][tex]{ = \red{ \sf{ \frac{14.5}{100}}}} [/tex][tex]{ = \red{ \sf{0.145}}}[/tex]

[tex]{ \purple{ \tt{ K_{a}(HCOOH) = C { \alpha }^{2}}}} [/tex]

[tex]{ \purple{ \tt{ K_{a}(HCOOH) = 0.01 \times {(0.145)}^{2} }}}[/tex]

[tex]{ \purple{ \tt{ K_{a}(HCOOH) = 2.1 \times {10}^{ - 4}}}} [/tex]

Thus,

[tex]{ \blue{ \tt{ \frac{Strength \: of \: formic \: acid}{Strength \: of \: HCN}} \: = }}{ \green{ \tt{ \sqrt{ \frac{2.1 \times {10}^{ - 4} }{4.9 \times {10}^{ - 10} } }}}}[/tex]

[tex]{ = \boxed{ { \red{ \sf{6.5 \times {10}^{2}}}}}} [/tex]

i.e., formic acid is 6.5×10² times stronger than HCN or we can say that HCN is 6.5×10² times weaker than formic acid.

Answer:

Explanation:

Have you done any Lewis diagrams?   your picture of the drawings are kind like a Lewis diagram,  showing the electrons filling of the outer shell.   The outer shell balancing is what holds the atoms together in molecules.  That's what  you are showing in your drawing.   How the atoms "stick" together.

The element that has the following electronic configuration are :

a) the atomic number of selenium is 34. the electronic configuration is given as :

electronic configuration : 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰  4p⁴

b) the atomic number of bromine is 35 . the electronic configuration is given as :

electronic configuration : 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰  4p⁵

c) the atomic number of krypton is 36 . the electronic configuration is given as :

electronic configuration : 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰  4p⁶

d)  the atomic number of francium is 87. the electronic configuration is given as :

electronic configuration : 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰  4p⁶ 4d¹⁰ 5s² 5p⁶ 4f¹⁴ 5d¹⁰ 6p⁶ 7s¹

Thus, The element that has the following electronic configuration are :

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The modern cell theory explains the relation between the cells and the living things.

The Scientific knowledge is durable yet subject to change. Science is a social activity. The scientific knowledge includes the generalized collection of the laws and the hypothesis. scientific knowledge is used to generate the logical data and the knowledge. scientific knowledge is used to investigate the data to explain the phenomena. scientific knowledge involves the experiments and the data collection. the scientific knowledge is very important because it helps us to understand ourselves and the world.

Thus, The modern cell theory explains the relation between the cells and the living things.

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The dew point for a day's weather is calculated to be 18°C, Water will condense if the air temperature drops below 18°C.

What is weather?
Weather refers to the state of a atmosphere and includes terms like how hot or cold, wet as well as dry, calm as well as stormy, clear or cloudy, etc. On Earth, the majority of weather events take place in the troposphere, which is the lowest part of the planet's atmosphere and lies just below the stratosphere. Climate is indeed the term again for averaging of atmospheric conditions over a longer period of time, whereas weather is the term for day-to-day temperature, precipitation, as well as other atmospheric conditions. Without further explanation, "weather" is typically taken to refer to the weather on Earth. Differences in air pressure, temperature, as well as moisture from one location to another influence the weather. The Sun's angle at any given location, which changes with latitude, may be the cause of these variations.

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Answer:i try and try but nobody likes me

Explanation: that's the story of the day lucky person brainiest pls

hehehhehehhehehehehehhehhehehehehehehehehehehe

The theoretical yield (g) of HI produced by the reaction is 18.93 g.

The reaction is given as :

H₂(g) + I₂(s)   ---->   2 HI(g)

given that ;

mass of H₂ = 15.28 g

mass of I₂ = 18.82 g

moles of H₂ = mass / molar mass

                    = 15.28 / 2

                    = 7.64 mol

moles of  I₂ = mass / molar mass

                    = 18.82 / 253.80

                    = 0.074 mol

therefore the  I₂ is the limiting reactant. so, the amount of HI produced is depend upon the  I₂.

1 mole of  I₂ produce = 2 mole of HI

0.074 mole of  I₂ = 2 × 0.074 = 0.148 mol of HI

Theoretical yield of HI = 0.148 × 127.91

                                     = 18.93 g

Thus, The theoretical yield of a reaction is the amount of product obtained if the limiting reactant is completely converted to product. If 15.28 g H₂ is mixed with 18.82 g I₂,  the theoretical yield (g) of HI produced by the reaction is 18.93 g.

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