____________ occur when three pairs of electrons are shared between the outer shells of two atoms. Examples include ____________ .

The electronic configuration refers to the distribution of electrons in the various orbitals of an atom or ion. It follows a specific notation that represents the energy levels and sublevels occupied by electrons. The outer electron configuration of a noble gas typically has a full valence shell, meaning that the outermost energy level is completely filled with electrons.

For example, helium (He) has a configuration of 1s2.

Neon (Ne) has a configuration of 1s22s22p6.

Argon (Ar) has a configuration of 1s22s22p63s23p6.

Therefore, any configuration with a completely filled valence shell could belong to a noble gas.

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Answer: Velocity

Explanation:

i just took the quiz for k12

Velocity is the rate at that an object moves in a certain direction. The correct option is d.

The directional speed of an item in motion, as measured by a specific unit of time and observed from a certain point of reference, is what is referred to as velocity. A vector is a velocity. It comprises both magnitude and direction.

The size of velocity is speed. In still air, a particle gravitationally settles and quickly reaches its terminal velocity. The term "settling velocity" refers to a particle's final speed in a still fluid (also known as the "sedimentation velocity").

The particle settling velocity in the foreshore region plays a significant role in understanding fluctuations in the hydraulic regime and interactions between sediment and fluid in the surf zone.

Therefore, the correct option is d, Velocity.

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Answer:

KOH + H2SO4 --> K2SO4 + H2O

The molecular formula of the unknown compound is C2H2O2.

To determine the molecular formula of the unknown compound, we need to calculate the empirical formula first and then find the multiple of its subscripts to obtain the molecular formula.

Given:

Percentage of carbon = 40.0%

Percentage of hydrogen = 6.7%

Percentage of oxygen = 53.3%

Molecular mass = 60.0 g/mol

Step 1: Convert the percentages to grams.

Assuming we have 100 grams of the compound:

Mass of carbon = 40.0 g

Mass of hydrogen = 6.7 g

Mass of oxygen = 53.3 g

Step 2: Convert the masses to moles using the molar masses of the elements.

Molar mass of carbon = 12.01 g/mol

Molar mass of hydrogen = 1.008 g/mol

Molar mass of oxygen = 16.00 g/mol

Number of moles of carbon = Mass of carbon / Molar mass of carbon

= 40.0 g / 12.01 g/mol

= 3.332 mol

Number of moles of hydrogen = Mass of hydrogen / Molar mass of hydrogen

= 6.7 g / 1.008 g/mol

= 6.648 mol

Number of moles of oxygen = Mass of oxygen / Molar mass of oxygen

= 53.3 g / 16.00 g/mol

= 3.331 mol

Step 3: Determine the empirical formula by dividing the moles by the smallest value.

Dividing the moles of carbon, hydrogen, and oxygen by 3.331 gives approximately 1 for each element.

So, the empirical formula of the compound is CHO.

Step 4: Determine the multiple of the subscripts to obtain the molecular formula.

To find the multiple, we divide the molecular mass by the empirical formula mass.

Molecular mass = 60.0 g/mol

Empirical formula mass = (12.01 g/mol) + (1.008 g/mol) + (16.00 g/mol) = 29.018 g/mol

Multiple = Molecular mass / Empirical formula mass

= 60.0 g/mol / 29.018 g/mol

= 2.07

Rounding to the nearest whole number, we get 2.

Therefore, the molecular formula of the unknown compound is C2H2O2.

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Answer:

Hi! - H

He - He

Lies - Li

Because - Be

Boys - B

Can - C

Not - N

Operate - O

Fireplaces - F

New - Ne

Nation - Na

Might - Mg

Also - Al

Sign - Si

Peace - P

Security - S

Clause - Cl

A - Ar

King - K

Can - Ca

Explanation:

Currents are made by wind blowing over the water.

Currents created by wind are formed through the use of warm and cold air. The warm air becomes lighter through expansion, causing it to rise and transform into a warm air current. Cool air is heavier than the warm air, which makes it move to replace the warm air, thus forming a cool air current.

In short, currents are not made by wind blowing over water, but by the characteristics of warm and cool air acting on one another.

Additionally, the rest of the answers can easily be proven true.

Cold currents do cause nearby coastlines to become colder. This is because these winds blow into the coast and affect the temperature. The process also applies to warm air. Warm air can blow into the coastline and warm the area. (With this, both "Cold currents cause nearby coastlines to be colder," and "Warm currents cause nearby coastlines to be warmer," have been shown to be truthful.)

Oceans more more slowly than wind is also correct. The ocean is an uninterrupted surface which winds can peacefully blow across. This lack of disruption causes the winds to move quickly - much faster than even the ocean itself. The ocean('s) currents move slower than the winds. (Therefore, "Oceans move more slowly than wind," had been proven true.)

Oceans hold more heat than atmosphere on land has a simple explanation: the Sun. As we know, this humongous, fiery star we depend on for survival spreads its sunlight all over Earth. The oceans are no exception. The ocean(s) absorb(s) this sunlight and transform(s) it to heat and energy. Since water has a higher capacity for heat compared to air, it can store larger amounts of heat with less of a change in temperature (than air). (For that reason, "Oceans hold more heat than atmosphere on land," is indeed a factual statement.)

All of the options, apart from Currents are made by wind blowing over the water, have been proven true. With that being said, our answer is clear. (Hope this helps - have a lovely week!)

Answer:

currents are made by wind blowing over the water

Explanation:

In which direction does weather typically move? a. from east to west c. from north to south b. from west to east d. from south to north *this is the next question on the test and the answer is FROM WEST TO EAST*

Which of these describe a warm front?

Warm and cool air mass that are not strong enough to move one another

Cold air meets warm air, fast moving and stormy. Severe weather is likely.

Warm air meets cold air. Slow moving with less severe weather.

Ocean surface temperature is greater than 80F.

*these are the third question answers and there are no brainly answers online, so the answer to this one is, WARM AIR MEETS COLD AIR. SLOW MOVING WITH LESS SEVERE WEATHER.*

hope this helps :)

The approximate radius of the circle the proton will make R =10 μm and the proton will experience an initial force towards the north.

The radius of the circle that the proton will make can be found using the equation for the radius of the circular path of a charged particle in a uniform magnetic field:
r = (mv)/(qB)
where r is the radius of the circle, m is the mass of the proton, v is its velocity, q is its charge, and B is the magnetic field strength.
Substituting the given values, we have:

r= \((mpv)/(qB) = (1.7x10^-27 kg)(((2K.E.)/mp))/(1.6x10^-19 C)(1.0 T)2\)\((mpv)/(qB) = (1.7x10^-27 kg)(((2K.E.)/mp))/(1.6x10^-19 C)(1.0 T)2\)
r = \(9.29x10^-5\sqrt{x}\) meters or 92.9 micrometers (approximately)

Therefore, the approximate radius of the circle the proton will make is

R = 10 μm.

To determine the direction of the force experienced by the proton, we can use the right-hand rule. If we point our thumb in the direction of the proton's velocity (due east), and our fingers in the direction of the magnetic field (upwards), then the force on the proton will be perpendicular to both and will point towards either the north or the south.

In this case, using the right-hand rule, we can see that the force on the proton will be directed towards the north. Therefore, the proton will experience an initial force towards the north.

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Answer: Troposphere

Explanation:

In the troposphere, as altitude increases in the troposphere, the amount of water vapor decreases.

A chemist is studying the following equilibrium, which has the given equilibrium constant at a certain temperature: N2(g)+ 2H2O(g)⇌ 2NO(g)+ 2H2(g) =Kp×2.10−1.He fills a reaction vessel at this temperature with 14.atm of nitrogen gas and 26.atm of water vapor.Use this data to answer the questions in the table below:-Can you predict the equilibrium pressure of H2, using only the tools available to you within ALEKS? yes or no.-If you said yes, then enter the equilibrium pressure of H2 aright.

Water vapor, water vapour or aqueous vapor is the gaseous phase of water. it is one nation of water inside the hydrosphere. Water vapor can be made from the evaporation or boiling of liquid water or from the sublimation of ice. Water vapor is obvious, like maximum materials of the atmosphere.[4] under usual atmospheric conditions, water vapor is continuously generated by way of evaporation and eliminated by using condensation. it's far much less dense than most of the opposite constituents of air and triggers convection currents which could lead to clouds.

Being a factor of Earth's hydrosphere and hydrologic cycle, it's miles mainly plentiful in Earth's ecosystem, in which it acts as a greenhouse fuel and warming remarks, contributing greater to general greenhouse impact than non-condensable gases together with carbon dioxide and methane. Use of water vapor, as steam, has been essential for cooking, and as a chief aspect in electricity production and transport systems for the reason that business revolution.

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One new inhibitor mentioned in the Chemistry at the Crime Scene box on page 687 is Curare, which inhibits the action of acetylcholine at the neuromuscular junction.

The Chemistry at the Crime Scene box on page 687 discusses different inhibitors that can interfere with enzyme actions. One of the inhibitors mentioned is Curare. Curare is a naturally occurring plant-based toxin that inhibits the action of acetylcholine at the neuromuscular junction.

Acetylcholine is a neurotransmitter involved in transmitting nerve impulses to muscles. It plays a crucial role in muscle contraction. However, Curare acts as a competitive antagonist to acetylcholine.

It binds to the acetylcholine receptors on the postsynaptic membrane, preventing acetylcholine from binding and activating the receptors. As a result, the normal signaling between nerves and muscles is disrupted, leading to muscle paralysis.

Curare's inhibitory action on acetylcholine is particularly relevant in the context of crime scenes because it can be used as a poison or a paralyzing agent. It interferes with the normal muscle function, potentially causing respiratory failure and death.

Understanding the mechanisms of enzyme inhibitors like Curare is essential for both forensic investigations and the development of therapeutic drugs.

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Water and carbon dioxide are the byproducts of hydrocarbon burning.

A mixture of hydrocarbon is called a hydrocarbon. The hydrocarbons methane (CH4), ethane (C2H6), and ethyne are examples of (C2H2). These compounds are all hydrocarbons since their corresponding molecular formulas show that they are all solely composed of the elements hydrogen and carbon.

The biggest and most intricate carbon molecules are found in coal. Various hydrocarbons produce different amounts of water and carbon dioxide because their hydrogen to carbon ratios vary. The ratio of charcoal to hydrogen is typically higher in longer, more complicated molecules.

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Answer:

Explanation:

Earthquakes are normally caused by underground rock breaking along a fault line. The seismic waves that cause the earth to shake are caused by this sudden release of energy. The plates or blocks of rock begin to move during and after the earthquake, and they continue to move until they become trapped again. As fluid near the center heats up, convection currents develop within the Earth's mantle. Particles pass more quickly as the core heats the bottom layer of mantle material, lowering its density and allowing it to rise. The convection current is started by the growing material.

Answer:

3000 ÷ 150

Explanation:

acceleration = N/kg

Answer:

A derived unit is a unit that results from a mathematical combination of SI base units. We have already discussed volume and energy as two examples of derived units.

Answer:

D is correct

Explanation:

Answer:

A

Explanation:

Electrons are gained by the atoms. There is no change in the nucleus of the atom and the number of protons remains identical.

Answer:

This question is incomplete

Explanation:

This question is incomplete but one can assume the answer from the definition of quantum mechanics. Quantum mechanics is the science that describes particles in nature at the atomic and subatomic particle (electron, proton and neutron) level. Thus it can be assumed that atoms and subatomic particles are used to broadly describe particles.

The characteristic of elemental bromine reacting vigorously with elemental sodium metal to form a white solid represents a chemical property.

Chemical characteristics define how substances react or change chemically. A white solid forms when elemental bromine and sodium metal combine, suggesting a chemical transition.

However, a substance's physical attributes can be detected or quantified without changing its chemical composition. Colour, density, melting, and boiling points are physical qualities.

It is a chemical property of elemental bromine to react with sodium metal and generate a new compound.

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The first step in this calculation is to know how many liters is equal to 1 gallon, and the value is 3.785 liters, so now we have to make the following calculation:

1 gal = 3.785 Liters

30.0 gal = x Liters

x = 3.785 * 30.0

x = 114 Liters

Have GM crops caused damage to the environment? Crops do not damage the environment simply because they are GM. Some farming practices, such as the overuse of herbicides resulting in the excessive eradication of wild plants from farmland have been shown to harm the environment.

Some benefits of genetic engineering in agriculture are increased crop yields, reduced costs for food or drug production, reduced need for pesticides, enhanced nutrient composition and food quality, resistance to pests and disease, greater food security, and medical benefits to the world's growing population.

Answer:

Yes

Explanation:

Food that comes from the engineering food factories wrapped in plastic which can be dangerous for the environment.

The amino acids that can form hydrogen bonds with water are those with polar or charged side chains, which are capable of forming hydrogen bonds with water molecules.

Amino acids with polar or charged side chains are the ones that have the capability of creating hydrogen bonds with water molecules. These amino acids are the only ones that can make hydrogen bonds with water. Serine, threonine, asparagine, glutamine, tyrosine, cysteine, methionine, histidine, lysine, arginine, and aspartic acid (aspartate) and glutamic acid are some of the amino acids that fall into this category (glutamate).

These amino acids have the ability to form hydrogen bonds with water molecules, which contributes to the general soluble nature of proteins as well as their structural integrity.

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The copper piece's initial temperature was 96.5 °C.

We may use the law of conservation of energy and the equation for heat transmission to get the copper piece's initial temperature.

The copper component loses the same amount of heat that the water absorbs. Q = mcT is the equation for heat transfer.

Q stands for the amount of heat that is transported, m for mass, c for specific heat, and T for temperature change.

The heat acquired for the water is equal to (m_water × c_water × T_water), while the heat lost for the copper object is equal to (m_copper × c_copper × T_copper).

m_copper = 240.0 g c_copper = copper's specific heat

T_copper is equal to the difference between the copper's beginning and final temperatures.

T_water = final temperature of water - beginning temperature of water. T_water = 42.0 °C - 24.0 °C = 18.0 °C. m_water = 400.0 g c_water = specific heat of water.

We can set up the equation since the amount of heat lost by the copper piece is equal to the amount of heat gained by the water:

(m_copper×c_copper×T_copper) = (m_water×c_water×T_water) m_copper×c_copper×T_copper) = 96.5 °C

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Answer:

B

Explanation:

Answer:

metal

Explanation:

Answer: chlorofluorocarbon

Explanation:

chlorofluorocarbon

Answer:

Carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) are greenhouse gases. Chlorofluorocarbons (CFCs) are also considered greenhouse gases, but they are now largely banned due to their damaging effects on the ozone layer.

Explanation:

Answer:

2m/s²

Explanation:

The initial acceleration of the wagon can be determined from;

      Force  = mass x acceleration

mass  = 50kg

Initial force applied  = 100N

  Now;

              100  = 50 x a

                 a = 2m/s²

So;

  When a force of 200N applied;

       200 = 50 x a

           a  = 4m/s²

Therefore, the wagon will quickly accelerate by 4 - 2 = 2m/s²

Oxides contain four types of charges: fixed charges (Qf), trapped charges (Qt), interface charges (Qit), and mobile ions (Qm).C-V graphs are used to assess the electrical characteristics of a dielectric interface. C is the capacitance of the oxide layer, and V is the applied voltage on the metal electrode that forms the oxide layer.

As the capacitance of the oxide layer changes with the applied voltage, the C-V graph shows the capacitance change. The graph below shows how each feature appears in a C-V graph.
[Blank]Fixed charge (Qf)Fixed charges are immobile, so they can only interact with the applied voltage via their electrostatic effect. As a result, when the applied voltage is greater than a specific threshold voltage (VT), the fixed charges create a dip in the C-V graph.

[Blank]Mobile ions (Qm)Mobile ions are also present in the oxide layer, and they can move in response to an electrical field. The mobile ions influence the electrostatic potential in the oxide layer, which alters the capacitance. Because of this influence, the C-V graph has a tiny dip before the hump known as the tail.

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Mass of tin = moles of tin x molar mass of tin

Mass of tin = 0.020 mol x 118.7 g/mol

Mass of tin = 2.37 g

Therefore, the mass of tin in the chemical reaction is 2.37 g.

If tin is heated, it cracks. This is caused by crystals rubbing against each other. This characteristic crackle is heard if a piece of tin is simply bent. Tin is very malleable and ductile.

Some properties of tin is that it amphoteric. On reacting with both strong bases and strong acids with the evolution of hydrogen occurs. With sodium hydroxide solution, tin forms Na2[Sn(OH)6]. The reaction with acids is slow in the absence of oxygen.

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Answer:

Refer to the attachment

A reducing sugar is characterized by the presence of a free aldehyde or ketone group, its ability to undergo redox reactions, and its positive result in the Benedict's test. It is important to note that a reducing sugar acts as a reducing agent, not an oxidizing agent.

A reducing sugar is a type of sugar that readily acts as a reducing agent, not an oxidizing agent. It is capable of donating electrons to other substances, which allows it to undergo a redox reaction. This ability to donate electrons is due to the presence of a free aldehyde or ketone group in the sugar molecule.

Here are some characteristics of a reducing sugar:

1. Presence of a free aldehyde or ketone group: A reducing sugar has a free aldehyde (in the case of aldoses) or ketone (in the case of ketoses) group. This group is capable of reducing other substances by donating electrons.

2. Redox reactions: A reducing sugar can undergo redox reactions, where it donates electrons to another substance, thereby reducing it. This results in the oxidation of the sugar itself.

3. Benedict's test: A reducing sugar can be detected using a chemical test called the Benedict's test. This test involves heating the sugar with Benedict's reagent, which contains copper sulfate. If the sugar is a reducing sugar, it will reduce the copper sulfate to form a red precipitate of copper(I) oxide.

4. Examples: Some examples of reducing sugars include glucose, fructose, and maltose. These sugars have a free aldehyde or ketone group, allowing them to act as reducing agents.

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