what is the ph of a saturated solution of a metal hydrdoxide m(oh)3? ksp = 7.1e-12

Properties of elements within a period on the periodic table change in a predictable way from one side of the table to the other

From one side of the periodic table to the other, properties of elements within a period vary in a predictable manner. A horizontal row represents a period in the periodic table. The number of electron shells is the same for every atom in a row. Moving through a period causes elements to acquire electrons and protons and become less metallic. -Elements in the same period have the same number of electron shells.

As the atomic number rises, comparable features reoccur on a regular basis, which is reflected in this arrangement. From one side of the periodic table to the other, properties of elements within a blank shift in a predictable manner. those with comparable qualities are displayed in a column.

To know more about  periodic table visit : https://brainly.com/question/11155928

#SPJ9

Answer:

1 = -15. 2 = +5

Explanation:

i just did it good luck

Answer: 30 g LiF

Explanation:

The time when the tree die from which the charcoal came is 1.02×10⁻⁴ years. if half-time of carbon-14 is 5600years.

An amount is dependent upon exponential decay on the off chance that it diminishes at a rate relative to its ongoing worth. Emblematically, this interaction can be communicated by the accompanying differential equation, where N is the amount and λ (lambda) is a positive rate called the dramatic rot steady, crumbling consistent, rate steady, or change consistent: dN/dt=-λN. The answer for this situation (see deduction beneath) is: N(t)=N₀e⁻\(\frac{k}{t}\), where N(t) is the amount at time t, N₀ = N(0) is the underlying amount, that is to say, the amount at time t = 0.

We know that exponential decay is given

A\(_t\) = A₀ e⁻\(\frac{k}{t}\) where K is decay constant.

We firstly find decay constant by using the half life-time

We know that t=ln2/k where t is half life time .Since,t=5600years given

=>5600=ln2/k

=>k=(ln2/5600)years

Now,it is given that at any particular instant amount of charcoal remain is 30 % of initial amount.

So, (30/100)A₀=A₀e⁻\(\frac{k}{t}\)

Here,k=(ln2/5600)years

=>30/100=e⁻ \(\frac{ln2/5600}{t}\)

Taking ln on both sides of equation,we get

=>ln(30/100)=ln(e⁻ \(\frac{ln2/5600}{t}\))

=>ln30-ln 100= - ln2/5600t

=>3.40 - 4.60 = -0.693/5600t

=> - 1.205 = -0.693/5600t

=>t=0.693/ (1.205×5600)

=>t=0.693 / 6748years

=>t=0.000102years or 1.02×10⁻⁴ years.

To know more about exponential decay,visit here:

https://brainly.com/question/14355665

#SPJ4

"Hypotonic solution," refers to a solution with the highest water concentration due to its lower solute concentration compared to the other options, leading to water influx into cells.

A hypotonic solution would be most likely to have the highest water concentration. In a hypotonic solution, the solute concentration is lower than that inside the cell or compared to another solution. As a result, water tends to move into the cell or the solution to equalize the concentration.

When a cell is placed in a hypotonic solution, water molecules will move into the cell through the process of osmosis. This influx of water increases the water concentration inside the cell, leading to cell swelling or even bursting in extreme cases.

Compared to hypertonic and isotonic solutions, a hypotonic solution has a lower solute concentration, allowing for a higher concentration of water molecules. This results in a higher water concentration in the solution. It's important to note that the concept of tonicity is related to the relative solute concentrations between two solutions and their effect on cell osmosis. In this case, a hypotonic solution is characterized by a higher water concentration compared to the other options.

learn more about Hypotonic solution here:

https://brainly.com/question/28020628

#SPJ11

The final volume V2 in milliliters is

1246 ml

The volume percent of a solution is defined as the ratio of the volume of solute that is present in a solution, relative to the volume of the solution, as a whole.

We will use V1C1 = V2C2 to solve this problem.

V1 = 0.523 L = 523 mls

C1 = 49.1%

V2 = ? in mls

C2 = 20.6%

(523 ml)(49.1%) = (V2)(20.6%)

V2 = (523 ml)(49.1%)/(20.6%)

V2 = 1246 ml final volume

Hence, final volume v2 in milliliters is 1246 ml

Learn more about Volume here:

https://brainly.com/question/463363

#SPJ4

Water vapor is formed through a process called evaporation.

When water is heated, the molecules gain energy and become more active. This causes some of the water molecules to escape from the liquid phase and enter the gas phase, forming water vapor.

This process occurs naturally in various bodies of water, such as oceans, lakes, and rivers, as well as in plants through a process called transpiration.

Water vapor in the atmosphere can then condense to form clouds, and when these droplets become large enough, they fall as rain.

Learn more about evaporation from this link:

https://brainly.com/question/2013258

#SPJ11

Water vapor is formed through a process called evaporation.

When water is heated, the molecules gain energy and become more active. Some of these molecules gain enough energy to break free from the liquid and escape into the air as water vapor.

This process occurs naturally in bodies of water, such as oceans, lakes, and rivers, as well as on a smaller scale, like when water evaporates from a puddle or a wet surface.

Learn more about evaporation from this link:

https://brainly.com/question/2013258

#SPJ11

Explanation:

the physical and chemical properties of an element are periodic functions of their atomic number.

Answer:modern periodic table is published by Henry Moseley and he believes that ' properties of an elements are periodic function of the atomic number' and he classify the periodic table by groups and perieods so in the modern periodic table there are seven periods and eighteen groups.

The molar concentration of chloride ions in a 2.6 M solution of MgCl₂ can be calculated using the molar ratio of chloride ions to MgCl₂.

To find the molar concentration of chloride ions, we need to consider the molar ratio of chloride ions to MgCl₂ in the solution. MgCl₂ dissociates in water to form one Mg²⁺ ion and two Cl⁻ ions. This means that for every one mole of MgCl₂, we have two moles of chloride ions.

Given that the solution is 2.6 M, it means that there are 2.6 moles of MgCl₂ per liter of solution. Since the molar ratio of chloride ions to MgCl₂ is 2:1, we can multiply the molar concentration of MgCl₂ by the ratio to find the molar concentration of chloride ions.

Molar concentration of chloride ions = 2.6 M MgCl₂ × 2 = 5.2 M Cl⁻

Therefore, the molar concentration of chloride ions in the solution is 5.2 M.

It's important to note that the density of the solution is not directly used in this calculation, as the molar concentration is determined by the number of moles of solute (MgCl₂) in a given volume of solution, rather than its mass.

To know more about molar concentration refer here:

https://brainly.com/question/28270242#

#SPJ11

In chemistry, a covalent bond is an interatomic coupling formed when two atoms share an electron pair.

Thus, The electrical attraction of their nuclei for the identical electrons is what causes the binding. When the linked atoms' combined energies are lower than those of widely spaced atoms, a covalent connection is created.

The inorganic elements hydrogen, nitrogen, chlorine, water, and ammonia (H2, N2, Cl2, H2O, NH3) as well as all organic compounds are examples of molecules with covalent connections.

Covalent bonds have a direction, which means that the atoms they are bonded to favour particular alignments with one another. This results in the formation of specified forms for molecules, such as the angular (bent) structure of the H2O molecule.

Learn more about Covalent bonds, refer to the link:

https://brainly.com/question/10777799

#SPJ4

The given statement, "le chatlier's principle states that if a system at equilibrium is disturbed, the equilibrium will shift to minimize the disturbance." is true because the system's natural tendency is to maintain a state of equilibrium.

Le Chatelier's principle states that if a system at equilibrium is subjected to a change in temperature, pressure, or concentration of reactants or products, the equilibrium will shift in such a way as to counteract the change and maintain equilibrium.

This principle is useful in predicting the direction in which a reaction will proceed when conditions are changed, and can also be used to optimize reaction conditions for maximum yield.

To know more about the le chatlier principle, here

brainly.com/question/9191469

#SPJ4

Answer:

70..... I think

Explanation:

Cuz if the bus travels 35 km every 30 mins this means that it travels 70 km per hour

Answer:

The Aufbau Principle

Explanation:

In the ground state of an atom or ion, electrons fill atomic orbitals of the lowest available energy level before occupying higher-energy levels.

Answer:

Aufbau principle

Explanation:

edge 2021

The number of nitrogen molecules and nitrogen atoms in 0.253 g of nitrogen gas (N2) are as follows:a) Number of nitrogen molecules = 1.55 × 10²² N2 molecules

Number of nitrogen atoms = 3.1 × 10²² N atoms calculate the number of nitrogen molecules and nitrogen atoms In 0.253 g of nitrogen gas (N2), we use the following Firstly, we calculate the molar mass of nitrogen gas (N2).The molar mass of nitrogen gas (N2) is = 14 × 2 = 28 g/mol This means that one mole of nitrogen gas has a mass of 28 g. Next, we use the following formula to calculate the number of moles of nitrogen gas :N = m / MM where, N = Number of mole sm = Mass of the substance MM = Molar mass of the substance On substituting the values, we get:N = 0.253 g / 28 g/mol = 0.0090357 mol

Now, to calculate the number of nitrogen molecules and nitrogen atoms, we use the following formulas Number of nitrogen molecules = Avogadro's number × Number of moles of nitrogen gas Number of nitrogen atoms = 2 × Avogadro's number × Number of moles of nitrogen gas where, Avogadro's number = 6.022 × 10²³On substituting the values, we get  Number of nitrogen molecules = 6.022 × 10²³ × 0.0090357 = 1.55 × 10²² N2 molecules) Number of nitrogen atoms = 2 × 6.022 × 10²³ × 0.0090357 = 3.1 × 10²² N atoms In summary, 0.253 g of nitrogen gas (N2) contains 1.55 × 10²² nitrogen molecules (N2 molecules) and 3.1 × 10²² nitrogen atoms (N atoms).

To know more about molecules Visit;

https://brainly.com/question/30465503

#SPJ11

Using the periodic table the number of electrons is determined as;

Fluorine (F) has 5 electrons in 2p orbital.

Silicon (Si) has 2 electrons in 3p orbital.

Iron (Fe) has 6 electrons in 3d orbital.

Krypton (Kr) has 6 electrons in 4p orbital.

The number of electrons in each orbital or the electronic configuration can be determined by the Aufbau principle, along with other principles such as the Pauli exclusion principle and Hund's rule.

1. The atomic number of Fluorine is 9, which means it has 9 electrons. In the ground state, 2 electrons are in the 1s orbital, 2 electrons are in the 2s orbital, and 5 electrons are in the 2p orbital. Therefore, the number of 2p electrons in F is 5.

2. The atomic number of Silicon is 14, which means it has 14 electrons. In the ground state, 2 electrons are in the 1s orbital, 2 electrons are in the 2s orbital, 6 electrons are in the 2p orbital, and 2 electrons are in the 3s orbital. Therefore, the number of 3p electrons in Si is 2.

3. The atomic number of Iron is 26, which means it has 26 electrons. In the ground state, 2 electrons are in the 1s orbital, 2 electrons are in the 2s orbital, 6 electrons are in the 2p orbital, 2 electrons are in the 3s orbital, and 6 electrons are in the 3p orbital. Therefore, the number of 3d electrons in Fe is 6.

4. The atomic number of Krypton is 36, which means it has 36 electrons. In the ground state, 2 electrons are in the 1s orbital, 2 electrons are in the 2s orbital, 6 electrons are in the 2p orbital, 2 electrons are in the 3s orbital, 6 electrons are in the 3p orbital, 10 electrons are in the 3d orbital, and 2 electrons are in the 4s orbital. Therefore, the number of 4p electrons in Kr is 6.

Learn more about electronic configuration: https://brainly.com/question/26084288

#SPJ11

The relatively high boiling point of HF (hydrogen fluoride) compared to other hydrogen halides, it can be explained by the presence of hydrogen bonding.

Hydrogen bonding is a strong intermolecular force that occurs when a hydrogen atom is bonded to a highly electronegative element, such as fluorine.

In the case of HF, the difference in electronegativity between hydrogen and fluorine results in a polar bond, which allows for the formation of hydrogen bonds between neighboring HF molecules.

This bonding increases the energy required to separate the molecules, leading to a higher boiling point for HF compared to other hydrogen halides that do not experience such strong intermolecular forces.

For more information on high boiling point of halides refer https://brainly.com/question/40140

#SPJ11

Answer:

The answer is

Explanation:

The percentage error of the density can be found by using the formula

\(Percentage \: \: error(\%) = \frac{error}{actual \: \: number} \times 100 \\ \)

From the question

actual density = 1.59 g/cm³

error = 1.68 - 1.59 = 0.09

The percentage error is

\(P(\%) = \frac{0.09}{1.59} \times 100\% \\ = 5.66037735...\)

We have the final answer as

Hope this helps you

Answer: when you look at the meat, and it looks beautiful like a crispy donut made by Gordan Ramsay

Explanation:

Hells Kitchen is kewl

The planets in our solar system move in predictable patterns, as early astronomers found.

They were able to develop the rules of planetary motion and make precise predictions about the positions of the planets through careful observation and calculation. Later scientists might build on this work to grasp gravity, space, and the nature of our universe more fully. These discoveries are still being built upon today as we explore the solar system and beyond. It is useful to know how the planets move because it makes it easier to navigate satellites and spacecraft. In the end, the discoveries made by early astronomers have had a significant influence on how we perceive the universe and our role in it.

To know more about planetary motion, here

brainly.com/question/4978861

#SPJ1

--The complete Question is, What did early astronomers discover about the movements of the planets, and why does it matter to our understanding of space and our planet today?  --

Naphthalene is an organic compound with formula C ₁₀H ₈ whose molar mass is 128.1705 g/mol. The Lewis structure of the naphthalene is mentioned here.

Naphthalene is the uncomplicated polycyclic aromatic hydrocarbon, and white crystalline solid with a property of atmosphere that is noticable at concentrations as low as 0.08 ppm by mass.

Naphthalene is construct from crude oil or coal tar. It is also construct when things burn, so naphthalene is found in cigarette smoke, car exhaust, and smoke from forest fires. Naphthalene is also used as a pest repellent and insecticide. Naphthalene was first record as a pesticide in the United States in 1948.

Learn more about the Naphthalene here: https://brainly.com/question/1387132

Answer:

A mercury barometer is an instrument used to measure atmospheric pressure in a certain location and has a vertical glass tube closed at the top sitting in an open mercury-filled basin at the bottom. Mercury in the tube adjusts until the weight of it balances the atmospheric force exerted on the reservoir.

Answer:

wow ok have fun

Explanation:

Answer:

hiiiiiiiii

Explanation:

thank you

Answer:

Commensalism is a relationship between two organisms in which one organism benefits, and the other one is left unaffected.

Examples:

1. Barnacles on a sea turtle

2. Tree frogs and plants (they use them as protection)

1. Barnacles on a sea turtle

2. Tree frogs and plants (they use them as protection)

hope this helps

False. Mitochondrial ATP synthase is a protein complex located in the inner mitochondrial membrane that is responsible for synthesizing ATP from ADP and inorganic phosphate during oxidative phosphorylation.

It is an integral part of the electron transport chain, which is the process by which cells generate most of their ATP. The ATP synthase complex requires a proton gradient across the inner mitochondrial membrane to function properly. When mitochondria are broken or disrupted, the proton gradient is lost, and ATP synthesis ceases.

Therefore, ATP synthase cannot synthesize ATP once it is extracted from broken mitochondria. In fact, ATP synthase is highly sensitive to disruption and is often used as a marker for mitochondrial damage or dysfunction. This is why it is crucial to handle mitochondria carefully during experiments to ensure that they remain intact and functional. Overall, mitochondrial ATP synthase is a critical component of cellular energy metabolism and plays an essential role in maintaining proper cellular function.

To know more about ATP synthase

https://brainly.com/question/893601

#SPJ11

Answer: I guess have to like explain to her why to not stick the fork into the toaster.

Explanation:

Hope this helps

Answer:

its just how would you explain how it happens how the electricity passes through the fork but in a easy understandable way

Explanation:

for example... dont do that because......................then will go through the fork then to your arm and will cause....................... then you die

The element Ca, calcium is the main group element. The Ca belongs to the group 2 and the period 4.

The Ca is the main group element , belongs to the period 4 and the group 2 of the periodic table. The calcium belongs to the s-block element. The s block and p block elements are the main group element.

The s-block elements are separated into the two groups: the Group 1 is the alkali metals and Group 2 is the alkaline earth metals. The  Groups 13 - 18 belongs to the p-block elements which are basic metals, the metalloids, the nonmetals, the halogens, and the noble gases.

To learn more about main group here

https://brainly.com/question/14818173

#SPJ4