using the bohr model of the atom, determine the photon energy involved in the transition of a hydrogen atom's electron from the n

Answer:

See explanation and image attached

Explanation:

Hydrogen peroxide is made up of two atoms of hydrogen and two atoms of oxygen as shown in the image attached.

The two oxygen atoms are joined together by a single covalent bond and each of the oxygen atoms are bonded to one hydrogen atom each.

There are two lone pairs on each of the oxygen atoms.

The Lewis(dot) structure for hydrogen peroxide is shown in the image attached to this answer.

The magnitude of Vanessa's displacement is the square root of the sum of the squares of her northward and eastward movements:

sqrt(189^2 + 238^2) = 285.3 m.

~ happy valentine's day

The heat capacity for the metals are;

Aluminum -  0.89

Copper - 0.11

Iron - 0.44

Lead - 0.12

The specific heat of a substance is denoted by the symbol "C" and is typically measured in units of J/g·°C (joules per gram per degree Celsius) or cal/g·°C (calories per gram per degree Celsius).

The specific h

We have that;

For Aluminum;

c = 4.184 * 39.85 * 4.7/11.98 * 72.9

= 783.6/873.3

= 0.89

For Copper;

c =  4.184 * 12.14 * 1.9/12.14 * 75.4

= 96.5/915.3

= 0.11

For Iron

c =  4.184 * 40.24 * 2.4/12.31 * 75.1

= 404.1/924.5

= 0.44

For Lead

c = 4.184 * 39.65 * 0.7/12.46 * 76.7

c = 116.1/955.68

= 0.12

Learn more about specific heat:https://brainly.com/question/31608647

#SPJ1

Sand casting, which makes up around 70% of all metal casting, is the most common casting technique. A design of the finished object is created in wood or metal and employed in the process of "sand casting,".

Casting techniques are a class of manufacturing procedures used to turn liquid materials like metal, plastic, or ceramics into solid things. The liquid substance is put into a mould and given time to harden and assume the contours of the hollow. Casting techniques come in a variety of forms, including sand casting, investment casting, die casting, shell casting, and lost foam casting. The kinds of materials that can be cast, the degree of accuracy and surface quality, and the complexity of the pieces that can be created are only a few of the distinctive characteristics that each casting technique has. The automobile, aerospace, and construction industries all use casting techniques extensively.

Learn more about casting methods here:

https://brainly.com/question/15359594

#SPJ4

Sulphur dioxide molecule have two resonance structure.

Resonance structures are the different Lewis structures of the same molecule. The components of the molecule will change places from one another.

The two resonance structures of sulphur dioxide molecule is demonstrated here.

A third Lewis structure can also be drawn. But that is not a stable molecule in reality and can't be counted.

To solve this, we must be knowing each and every concept related to resonance. Therefore, there are total  two resonance structure of sulfur dioxide molecule.

Resonance is a technique for characterizing delocalized electrons in molecule in which the bonding cannot be described directly by a singular Lewis structure. It is also called mesomerism.

Each unique Lewis structure of the targeted molecule or ion is referred to as a contributing structure. Because they simply differ in the location of delocalized electrons, contributing structures really aren't isomers of the targeted molecule or ion. There are total  two resonance structure of sulfur dioxide molecule.

Therefore, there are total two resonance structure of sulfur dioxide molecule.

To know more about resonance, here:

https://brainly.com/question/11331041

#SPJ2

The term that the scientist would use in this case is partial pressure. Option D

The pressure that one particular gas component within a mixture of gases exerts is referred to as partial pressure. It is the pressure that the gas would experience at the same temperature if it were the only thing in the entire volume.

When researching gas mixtures, such as in gas laws, gas phase equilibria, and gas collecting methods, partial pressures are extremely crucial for the gas.

Learn more about partial pressure:https://brainly.com/question/30114830

#SPJ1

Answer:

This process of growing, moving and shedding takes about four weeks. SO I would think dividing is around a month

Explanation:

Hope this helps! Consider Brainiest! <3

Answer:

1/2 to 1 and 1/2 hours

Explanation:

Skin cells go through the division phase that takes between 1/2 to 1 and 1/2 hours to complete, depending on the location. Body cells, which include skin, hair, and muscle, are duplicated through the process of mitosis. Skin cells belong in the category of somatic cells and are duplicated at a rapid rate during life.

Answer:

D.) State the question, form a hypothesis, conduct an experiment

Explanation:

https://www.colorincolorado.org/article/steps-scientific-process

Answer:

108.81 K

Explanation:

First convert 17 °C to Kelvin:

Assuming ideal behaviour, we can solve this problem by using the combined gas law, which states that at constant composition:

Where in this case:

We input the data:

And solve for T₂:

Answer:

Approximately \(3.06 \times 10^{2}\; \rm g\) (approximately \(306\; \rm g\).)

Explanation:

Calculate the quantity \(n\) of lithium phosphate in \(V = 2.5\; \rm L\) of this\(c = 1.06\; \rm M = 1.06\; \rm mol \cdot L^{-1}\) lithium phosphate solution.

\(\begin{aligned}n &= c \cdot V\\ &= 2.5\; \rm L \times 1.06\; mol \cdot L^{-1}\\ &= 2.65\; \rm mol\end{aligned}\).

Empirical formula of lithium phosphate: \(\rm Li_3PO_4\).

Look up the relative atomic mass of \(\rm Li\), \(\rm P\),and \(\rm O\) on a modern periodic table:

Calculate the formula mass of \(\rm Li_3PO_4\):

\(M(\rm Li_3PO_4) = 3 \times 6.94 + 30.974 + 4 \times 15.999 = 115.79\; \rm g \cdot mol^{-1}\).

Calculate the mass of that \(n = 2.65\; \rm mol\) of \(\rm Li_3PO_4\) formula units:

\(\begin{aligned}m &= n \cdot M \\ &= 2.65\; \rm mol \times 115.79\; \rm g\cdot mol^{-1} \\ &\approx 3.06 \times 10^{2}\; \rm g \end{aligned}\).

Answer:

100

Explanation:

The heat absorbed by the engine block when its temperature is raised from 20°C to 90°C is 665,640 J.

To calculate the heat absorbed by the engine block, we can use the equation:

Q = mcΔT

where Q is the heat absorbed, m is the mass of the engine block, c is the specific heat capacity of steel, and ΔT is the change in temperature.

First, we need to calculate the specific heat capacity of steel. The specific heat capacity of steel is typically around 0.45 J/g°C.

Using this value and the given values of mass and temperature change, we can calculate the heat absorbed by the engine block as follows:

Q = (21080 g) x (0.45 J/g°C) x (90°C - 20°C)

Q = 21080 g x 0.45 J/g°C x 70°C

Q = 665,640 J

For more question on heat absorbed click on

https://brainly.com/question/30361927

#SPJ11

The statement that describes the motion of the squirrel between 5s and 8s is as follows: The squirrel's speed did not change (option C).

A graph in mathematics and statistics is a data chart (graphical representation of data) intended to illustrate the relationship between a set (or sets) of numbers (quantities, measurements or indicative numbers) and a reference set, whose elements are indexed to those of the former set(s) and may or may not be numbers.

According to this question, a graph is used to illustrate the relationship between the distance moved by a squirrel and the time it took it to move i.e. the journey of squirrel for a certain interval or period of time.

Based on the graph above, the speed increased with time up until 5 seconds, however, from 5seconds till 8 seconds, the speed of the squirrel remained constant i.e. did not change until it picked up again.

Therefore, option C is the correct description of the situation of the squirrel between 5s to 8s.

The options to the incomplete question are as follows:

A. The squirrel's speed increased

B. The squirrel's speed decreased

C. The squirrel's speed did not change

D. The squirrel moved backward

Learn more about graph at: https://brainly.com/question/17267403

#SPJ1

Transient stage is also called the unstable stage and in this stage, there is a gradual decrease in deformation rate to a definite constant value.

A transient state is when a process variable or variables changes, but before the system reaches a steady state.

Transient time is the time it takes for a circuit to change from one steady state to the next.

Therefore, Transient stage is also called the unstable stage and in this stage, there is a gradual decrease in deformation rate to a definite constant value.

Learn more about Transient stage here ;

https://brainly.com/question/22686897

#SPJ1

The reaction order with respect to compound A is 2. Solution: 2.

Let us compare reaction rates at [A] = 4.0 M and [A] = 8.0 M:

0.000043 M/s at [A] = 4.0 M

0.00017 M/s at [A] = 8.0 M

To determine the order of the reaction with respect to A, we can use the following equation:

rate = k(A)x(B)y

where k is the rate constant

x = order in relation to A

y = position in relation to B

We can simplify the equation by assuming that the order with respect to B is zero (i.e., B has no effect on the rate of the reaction).

k[A]x = rate

Taking the ratio of the two rates we calculated earlier, we get:

(0.00017 M/s) / (0.000043) = (k[8.0]x) / (k[4.0]x)

When we simplify, we get:

4 = (8^x) / (4^x)

When we take the logarithm of both sides, we get:

x log(4) = log(4) (2)

2 x = log(4) / log(2)

To Know more about Compound Visit:

brainly.com/question/14117795

#SPJ1

The balanced equation is: 4 \(H_2S\)+ 3 \(O_2\)→ 4 \(SO_2\)+ 8 \(H_2O\)

The given chemical equation is unbalanced. To balance it, we need to adjust the coefficients in front of each chemical species until the number of atoms on both sides of the equation is equal.

The unbalanced equation is:

2 \(H_2S\)+ 3 \(O_2\)→ \(SO_2\)

Let's start by balancing the sulfur (S) atoms. We have two sulfur atoms on the left side and one sulfur atom on the right side. To balance the sulfur, we can place a coefficient of 2 in front of the \(SO_2\):

2 \(H_2S\)+ 3 \(O_2\)→ 2 \(SO_2\)

Now, let's balance the hydrogen (H) atoms. We have four hydrogen atoms on the left side (2 from each \(H_2S\)) and none on the right side. To balance the hydrogen, we can place a coefficient of 4 in front of the water (H2O) on the right side:

2 \(H_2S\)+ 3 \(O_2\)→ 2 \(SO_2\)+ 4 \(H_2O\)

Finally, let's balance the oxygen (O) atoms. We have six oxygen atoms on the right side (3 from \(O_2\) and 3 from 2 \(SO_2\)) and three on the left side (2 from \(H_2S\)). To balance the oxygen, we can place a coefficient of 3/2 in front of the O2:

2 \(H_2S\)+ (3/2) \(O_2\)→ 2 \(SO_2\)+ 4 \(H_2O\)

To remove the fractional coefficient, we can multiply all coefficients by 2:

4 \(H_2S\) + 3 \(O_2\)→ 4 \(SO_2\)+ 8 \(H_2O\)

Now the equation is balanced, with an equal number of atoms on both sides. The balanced equation is:

4 \(H_2S\)+ 3 \(O_2\)→ 4 \(SO_2\)+ 8 \(H_2O\)

For more such questions on  balanced equation visit:

https://brainly.com/question/23877810

#SPJ8

Answer:

Density = 0.17 g/L

Explanation:

It is given that,

Volume of the inflated balloon filled with Helium, \(V=2.2\times 10^3\ L\)

Mass, m = 374 g

We need to find the density of helium. It is equal to its mass per unit volume. It can be given by :

d =m/V

\(d=\dfrac{374\ g}{2.2\times 10^3\ L}\\\\=0.17\ g/L\)

So, the density of helium in the balloon is 0.17 g/L.

Answer:

1. 1166.2

2. 2076

3. 1336. 8

4. 733.04

5. 1834.5

6. 556.6

7. - 410.6

8. 836.4

Explanation:

1.9 x 103 =928

Macromolecules that are composed of carbon, hydrogen, and oxygen in a 1:2:1 ratio and include sugars, starches, glycogen, and cellulose is carbohydrate.

Macromolecules are molecules that are made of small molecules (monomers).

There are 4 types of macromolecules: carbohydrate, lipid, protein, and nucleic acid.

Thus, sugars, starches, glycogen, and cellulose are included in carbohydrates. The ratio of elements in carbohydrates is 1:2:1.

Learn more about macromolecules by clicking this link :

https://brainly.com/question/17637031

#SPJ4

The balanced molecular equation for the reaction between sodium hydroxide (NaOH) and aluminum chloride (\(AlCl_3\)) in aqueous solution can be written as follows: 2NaOH(aq) + 3\(AlCl_3\)(aq) → 3NaCl(aq) + \(Al(OH)_3\)(s)

In this reaction, sodium hydroxide (NaOH) reacts with aluminum chloride (\(AlCl_3\)) to form sodium chloride (NaCl) and aluminum hydroxide (\(Al(OH)_3\)). The coefficients in the balanced equation indicate the stoichiometric ratio between the reactants and products.

The physical states of the substances are indicated by the symbols (aq) for aqueous solutions and (s) for the solid precipitate.

The reaction is a double-displacement reaction, also known as a precipitation reaction. Double-displacement reactions involve the exchange of ions between two compounds, resulting in the formation of a precipitate.

In this case, sodium hydroxide and aluminum chloride react to form sodium chloride and aluminum hydroxide, with aluminum hydroxide being the white solid precipitate.

It's worth noting that the actual reaction might involve hydrated forms of the compounds, such as NaOH·x\(H_2O\) and \(AlCl_3\)·y\(H_2O\). However, for simplicity, these hydrated forms are not included in the balanced equation.

Overall, the balanced equation represents the chemical reaction between sodium hydroxide and aluminum chloride, showing the reactants, products, and their stoichiometric ratios.

For more such question on balanced molecular equation visit:

https://brainly.com/question/11904811

#SPJ8

Explanation:

These soft areas are the gaps between the skull's bones, when bone growth hasn't finished. As a result, the skull can be shaped during birth. By the age of two to three months, the smaller spot at the back usually closes. Around age 18 months, the larger spot in the front frequently closes.

Answer:

Step-by-step explanation-

A suspension is a heterogeneous mixture of a fluid that contains solid particles sufficiently large for sedimentation.

Particles are big enough to be visible to the eye and eventually with time they settle to the bottom of the container. The maximum amount of solute can be separated through physical methods like filtration.

In the mentioned cases all of them except salt in water are suspensions since the particles of each of them are big enough and do not get dissolved in water easily and can be separated from the mixture.

The final temperature of the copper would be 30.26°C if it absorbed 150 J of heat.

To solve this problem, we can use the formula:

q = m * C * deltaT

where q is the heat absorbed by the copper, m is the mass of the copper, C is the heat capacity of copper, and deltaT is the change in temperature.

Rearranging the formula, we get:

deltaT = q / (m * C)

Substituting the given values, we get:

deltaT = 150 J / (75 g * 0.38 J/g°C) = 5.26 °C

Therefore, the final temperature of the copper will be:

25.0°C + 5.26°C = 30.26 °C

Learn more about heat capacity, here:

https://brainly.com/question/28302909

#SPJ1

The amount, in kJ, of heat needed to completely vaporize 50.0g of water at 100°C is 118.8 kJ.

The heat needed to completely vaporize 50.0g of water at 100°C can be calculated using the following formula:

q = m x Hv

where:

First, we need to convert 50.0g to moles by dividing by the molar mass of water which is approximately 18.015 g/mol3:

moles of water = 50.0 g / 18.015 g/mol moles of water = 2.776 mol

Thus:

q = (2.776 mol) x (40.65 kJ/mol) q = 112.8 kJ

In other words, 112.8 kJ of heat is needed to completely vaporize 50.0g of water at 100°C.

More on heat of vaporization can be found here: https://brainly.com/question/12625048

#SPJ1

The amount of heat energy produced when 1 g of hydrogen and 2 g of nitrogen are reacted, is -6.61 KJ

First, we shall obtain the limiting reactant. Details below:

3H₂ + N₂ -> 2NH₃

From the balanced equation above,

28 g of N₂ reacted with 6 g of H₂

Therefore,

2 g of N₂ will react with = (2 × 6) / 28 = 0.43 g of H₂

We can see that only 0.43 g of H₂ is needed in the reaction.

Thus, the limiting reactant is N₂

Finally, we the amount of heat energy produced. Details below:

3H₂ + N₂ -> 2NH₃ ΔH = -92.6 KJ

From the balanced equation above,

When 28 grams of N₂ reacted, -92.6 KJ of heat energy were produced.

Therefore,

When 2 grams of N₂ will react to produce = (2 × -92.6) / 28 = -6.61 KJ

Thus the heat energy produced from the reaction is -6.61 KJ

Learn more about heat energy:

https://brainly.com/question/31429264

#SPJ1

A bouncing ball gradually stops bouncing because its energy is converted to heat energy.

According to the law of conservation of energy, energy is neither created nor destroyed but can be transformed from one form to another.

When a ball is bouncing up and down, we notice that the ball will slow down gradually. This is because, the energy in the bouncing ball is transferred to the small air molecules inside the ball as heat. Hence, the ball looses energy consistently until it comes to a stop.

Learn more: https://brainly.com/question/1527403