if 3.8 g of cu3(po4)2(s) was recovered from step 1, what was the approximate [cu2 ] in the original solution? (the molar mass of cu3(po4)2 is 381 g/mol.)

The sodium potassium pump helps in maintaining the acid-base balance of the body and helps in proper kidney function.

--> sodium ions,

--> potassium ions,

--> calcium ions and

--> some amino acids.

There are two types of active transport which are divided according to the energy that is used to cause the transport. They include:

--> primary and

--> secondary active transport.

PRIMARY ACTIVE TRANSPORT

A typical example is the SODIUM-POTASSIUM PUMP( Na+ - k+). This is a transport process that pumps sodium ions outward through the cell membrane of all cells and at the same time pumps potassium ions from the outside to the inside. This pump helps to:

--> maintain the sodium and potassium concentration differences across the cell membrane

--> establish a negative electrical voltage inside the cells.

The mechanism or operation of the pump involves the following steps:

--> two potassium ions bind on the outside of the carrier protein and three sodium ions bind on the inside.

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True, According to Mendeleev's periodic table when atoms are arranged in increasing no. of atomic mass some properties recur periodically, which later changed to the modern periodic law.

According to the contemporary periodic law, an element's physical and chemical characteristics are periodic functions of its atomic number.

From left to right across each row, scientists organized elements in increasing order of their atomic numbers. and found that items with identical features recur at predictable periods.

Thus, according to modern periodic law when elements are arranged in increasing order of atomic no. certain physical and chemical processes. recur periodically.

True, According to Mendeleev's periodic table when atoms are arranged in increasing no. of atomic mass some properties recur periodically, which later changed to the modern periodic law.

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Easier and pollutuion are correct answer of this question . Click oil basics and use the information to complete this passage that discusses how plastic production affects society.

What is Pollution?

Pollution, also known as environmental pollution, is the addition of any material (solid, liquid, or gas) or energy (such as heat, sound, or radioactivity) to the environment at a rate greater than it can be dispersed, diluted, decomposed, recycled, or stored in an innocuous form. The three basic sources of pollution—air, water, and land—are frequently categorised according to their effects on the ecosystem. Modern society is also concerned about certain types of pollution, such as plastic, light, and noise pollution. The environment, wildlife, and human health are all routinely negatively impacted by pollution of many forms.

Therefore, pollution can be defined simply as something that contaminates the environment. Pollution is the presence of dangerous compounds in the air, land, and water that can harm both living things and the environment. referring to dangerous substances that are released or brought into the environment, such as hazardous gases, liquids, or other poisonous materials. Pollutants, contaminants, or dangerous chemicals are other factors that contribute to the environment's unsuitability or safety, as are poisonous materials that contaminate the soil and the air. Pollution is another unavoidable side consequence of actions that disturb the ecosystem's biodiversity. Additionally, it jeopardises the environment's ability to endure.

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Can u put the question in english

Fertilizer could be the independent variable in the plant experiment. Fertilizer will be applied to certain plants but not others. To study the impact on the dependent variable, the scientists alter the amount of the independent variable (fertilizer) (plant growth).

The amount of fertilizer applied would be the independent variable in a study examining the impact of various fertilizer dosages on plant growth. The plant's growth in height or mass would be the dependent variable.

Therefore, The experimenter manipulates or modifies the independent variable, which is thought to have a direct impact on the dependent variable.

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A chemical reaction that normally occurs in the cytoplasm of both prokaryotic and eukaryotic living cells is known as fermentation.

An anaerobic reaction is a biological or chemical process that doesn't need oxygen, such fermentation and glycolysis.

As a result, since fermentation is anaerobic, oxygen is not needed.

Lactic acid fermentation produces significantly less adenosine triphosphate (ATP) and is less effective than cellular respiration.

More high-energy intermediates that can be oxidized to produce adenosine triphosphate (ATP) are produced during cellular respiration than are produced during lactic acid fermentation.

In comparison to cellular respiration, lactic acid fermentation is often less effective and generates significantly less adenosine triphosphate (ATP).

As a result, the following phrases/words are the most suitable and accurate to fill in the blanks:

1)  cytoplasm

2) Anaerobic

3) Does not require

4)  Much less

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Answer: The Rutherford model.

Explanation:

The blood interacts with the bicarbonate, C03²-, from the acid to balance it when acid is supplied to the blood buffer system.

A buffer is a substance that can withstand a pH shift when acidic or basic substances are added. Small additions of acid or base can be neutralized by it, keeping the solution's pH level largely constant. For procedures and/or reactions that call for certain and stable pH ranges, this is significant.

Buffer solutions can resist the pH change when a strong acid or base is added sparingly. A strong acid and also its salt can be used as a buffer. It is a mixture of sodium acetate and acetic acid, CH3COOH + CH3COONa.

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The milliliters of 232 quantity of HCl required for preparing 1M HCl.

The fact that water has a concentration of 10-7 for both hydronium and hydroxide must be taken into account when the concentration of acids  very close to or less than 10⁻⁷.

We frequently overlook the ion concentration in water for the same reason that we frequently ignore the mass of electrons (we just add the protons and neutrons), which is that they are so minute. For taking the -log conc, there is an exception in this case.

M1 * V1 = M2 * V2

10.5 * V1 = 1 * 740

V1 = 70.48 ml

Initial moles of solute are calculated as follows: molarity * volume in liters = 12 * (61/1000) = 0.0732 moles.

The 238 ml of solution now contains these moles.

0.0732 moles are present in 238 ml of solution.

Therefore, 119 ml of solution will contain = 0.0732 * 119 / 238 = 0.0366 moles of solute.

As of right now, the solution's total volume is 119 /113 = 232 ml, or 0.232 liters.

Final concentration is equal to moles divided by the volume in liters, or 0.0366/0.232, or 0.158 M.

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Answer:

Aeronautics, automotive, apparel, and pharmaceutical industries.

Explanation:

Other industries that may commonly use electron microscopes as a part of their production process include aeronautics, automotive, apparel, and pharmaceutical industries. Electron microscopy can also be applied in industrial failure analysis and process control of diverse industries.

She could say, "Tons with oppositely charged of Cl- and Na+ are electrical attracted to each other," in her explanation.

The main extracellular cationic and solute is sodium ion (Na+), which is crucial for the production of nerve impulses in cardiac and neurological tissue.

The predominant cation in extracellular environment is the sodium ion (Na+). Na+ can function as an essential intracellular second messenger upon entry into the cell, regulating a variety of cellular processes. Recent research has demonstrated that extracellular Na+ can play a significant signaling role in the up-regulation of Command is executed.

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An orbital energy level diagram for the ground state of a nitrogen atom is option A is correct.

Energy level diagram is defined as a visual representation of the energies of an atom's or molecule's various orbitals. The energy shifts when it switches between energy levels or when it jumps to a different shell. As a result, a shell also indicates an electron's energy along with its location, and these are known as energy levels.

Seven electrons make up the atom of nitrogen. Let's write the orbital notation of the atom in order to build the orbital energy level diagram: 7 electrons of nitrogen:

1s² 2s² 2p³

Thus, an orbital energy level diagram for the ground state of a nitrogen atom is option A is correct.

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Neither green algae nor embryophytes have a developed characteristic of having tissue that conducts water.

Embryophytes and aquatic "green algae" make up the majority of green plants.

Non-vascular plants lack the xylem and phloem that make up a vascular system.

Green algae are unable to grow as tall as the majority of vascular plants because they lack lignified water-conducting tissues.

What is xylem?

The vascular tissue is absent in green alge, which are divided into various unrelated families.

The majority of scientists believe that the xylem's real water conducting tissue is green. The tissue of the plant's vascula transports water and dissolved minerals from the roots to the rest of the plant while also offering structural support.

Tracheary elements are a general term for a variety of specialised water conducting cells found in xylem tissue.

Therefore, Green algae and embryophtes cannot be considered as both since they lack the xylem, a water-conducing tissue, and as a result cannot be both.

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Answer:  low - pressure system and a cold weather front

Explanation: because if you look at the map on where the black arrow is pointing you will see blue triangles that indicates a cold front and you will also notice that there is a big red L that L means low pressure, therefore the answer is low - pressure system and a cold weather front. please correct me if i'm wrong. ( i also just finished this same TGA in k12 and this was the answer)

i really hope this helps and have a great day.

A weather map, commonly referred to as a synoptic weather chart, shows different meteorological features across a certain area at a particular time and contains different symbols with different meanings.

The Weather Map is a weather forecaster's fundamental tool. The distribution patterns of atmospheric pressure, wind, temperature, and humidity at various levels of the atmosphere are shown on the weather map.

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The option C , Yes ,if you hurry up and adapt (acclimate) within 2 minute holding your breath is correct answer.

The right amount of  oxygen in blood is important. Too little oxgen and much oxgen are both harmful to health. Therefore, the body ciontrols  and regulatesthe amount of oxygen in blood at all times ,and the levelof oxygen in blood drops too low , the condition is called hypoxemia.

The option A, say sudden drops (10%) of oxygen is not sustainable, it is wrong because of the decrease of oxgen level it create the breathning problem.

The option B,yes  there is still lots of oxygen around, this option is correct the oxygen variation made many heath issues,but the option C is good answer for this question.

Option A is corect, countercurrent exchnge,,the two fluid moves in opposite direction with different heat,the maximum amount of heat transfer that can be obtained is higher incountercurrent, The countercurrent exchange is most suitable for urine purification,

Option B ,is wrong Concurrent exchange is two fluids moves in same direction it not gives 100%f freshwater

Urine treatment ; Heating the urine to evaporate the water and leaves the salt behind. The water vapor would then move to a condenser and be condensed as purified water .The salt remain, forming a brine solution with some of the remaining water. The brine would have to be recovered or thrown away periodically. this process would requires a lot of power to heat all the water boiling and to then cool the water vapor sufficiently to condensed it.

Option C: wrong  Reverse osmosis.Using high pressure cross  a very fine fitter or membrane to purify water.The water is separated from the salt Brine is created from the concentrated salt that have to be recoveredor periodically thrown away. This technology is often used in aridregion to convert and purify sea water into portable water.

Hence the option C is correct

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The mass and temperature of the first container are multiplied together, and the result is added to the product of the mass and temperature of the second container to get the water temperature of the combination.

After that, divide the result by the total water masses in each container.

The amount of heat that the calorimeter can hold for each degree Celsius increase in temperature is known as its heat capacity.

Experimental analysis is required to determine the calorimeter's heat capacity. Studying how warm and cold water are combined is the simplest technique.

Since we are aware that the final amount of our dilution will be 150mL.

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Cationic polymerization is a form of chain-growth polymerization used in chemistry, in which a cationic initiator charges up a monomer before it reacts.

The two different forms of chain-growth polymerization reactions utilized to create various types of polymers are anionic polymerization and cationic polymerization. Both of these reactions have the same reaction mechanism, however they have distinct reaction initiators.

Ions with a positive charge are called cations . Anions are negatively charged ions that have gained one or more electrons, resulting in having more protons than electrons.

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By indicating that the number of hydrogen ions required to balance the positive charge on the cation is True, the formula for a base can be written down.

The hydroxyl ions (OH-) produced will mix with any hydrogen ions (H+) in the solution to generate water molecules (OH- + H+ = H2O), therefore we can also define a base as a substance that receives or accepts hydrogen ions (H+) that are already present in the solution.

Hydrogen is an alkali metal with one electron in the outermost shell. It loses one electron to create a cation, H+, much like alkali metals.

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Answer: 4

Explanation:

The capacity of stationary phases used in high performance liquid chromatography (HPLC) to distinguish between polar column and nonpolar chemicals can be used to classify them.

Extremely polar chemicals, which are difficult to separate under reversed-phase conditions, can be retained and separated successfully using hypercarb columns. This application has shown that: Polar chemical retention is good in hypercarb columns. The techniques created on Hypercarb columns are solid.

(We define a bond to be polar if there is a difference between the electronegativity of the atoms in the bond that is more than 0.4. The bond is effectively nonpolar if the difference in electronegativity is smaller than 0.4.) The molecule is nonpolar if there are no polar bonds.

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Earliest to Latest:

hard, indivisible spheres → mostly empty space → electrons shells outside a central nucleus

What are electron shells?

In chemistry and atomic physics, electron shells can be thought of as the orbits of electrons around the nucleus. The shells closest to the nucleus are ``1-shell'' (also called ``K-shell''), ``2-shell'' (or ``L-shell''), ``3-shell'' (or ``M-shell''), and so on. away The shells correspond to the principal quantum numbers (n = 1, 2, 3, 4...) or are labeled alphabetically with letters in X-ray notation (K, L, M,...). A useful guide to understanding the electron shells of atoms is to note that each row in the conventional periodic table of elements represents an electron shell.

What is nucleus?

The atomic number, or atomic number of a chemical element, is the number of electric charges in the nucleus. For normal atomic nuclei, this equals the number of protons, or the number of protons found in the nucleus of each atom of that element.

Therefore, Earliest to Latest:

hard, indivisible spheres → mostly empty space → electrons shells outside a central nucleus

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Answer: 5 and 11

Explanation:

protons= 5

neutrons=6

mass number= 6+5=11

The volume will be 2400 ml.

The equation used here will be

M1 × V1 = M2 × V2

M1 = initial concentration

M2 = final concentration

V1 = initial volume

V2 = final volume

So according to the data;

M1 = 12m

M2 = 0.15m

V1 = 30ml

V2 = ?

By putting the values in the equation as follows;

M1 × V1 = M2 × V2

V2 = M1 × V1  / M2

By putting the values given in the question we will solve this question as follows

V2 =  12 × 30 / 0.15

V2 = 360 / 0.15

So the volume used will be;

V2 = 2400 ml

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The most polar form is made up of the elements phosphorous and fluorine. P-F because P(EN 2.19) and F(3.98) have higher electronegativity differences than N(EN 3.04) and F. (3.98). 

The more polar the disparity, the greater it is.The bond that phosphorous forms with fluorine will be the most polar of all those mentioned because nitrogen is one of the most electronegative elements in the periodic table. Orbitals collide to form bonds, which can be classified as polar or nonpolar depending on their polarity. They are regarded as an ionic and covalent link in accordance with Fajan's rule, which explains the ionic and covalent character in a bond between two atoms. The difference in electronegativity between the two atoms that make up a bond determines its polarity. A nonpolar covalent bond will form between two atoms if their electronegativity is essentially the same.

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The actual gases display intermolecular forces of attraction. the gases cannot act perfectly. Due to the gas molecules' near proximity to one another under high pressure, attraction forces begin to develop between them.

There are two ways that non-ideal solutions might form: the intermolecular interactions between the molecules of the solute and the solvent are weaker than those between molecules of similar (of the same kind) molecules. the intermolecular forces between molecules are stronger than the forces between molecules that are comparable.

The fuel gas known as CNG (compressed natural gas) is compressed to less than 1% of the volume it would have at normal atmospheric pressure. It is distributed and kept at a pressure of 20–25 MPa in rigid containers.

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Water has a 4.18 J/g specific heat capacity at 0 °C. Since 1500 ml of water weighs 1500 g, the enthalpy change for a 24.2 to 25.9 degree Celsius temperature difference is 10659 per mole or 1065.9 for 0.1 mol.

Calculating a reaction's enthalpy change analytically is called calorimetry. Given by, is the calorimetric equation that links mass, temperature difference, and specific heat capacity (c).

q = mc ΔT

given that the water has a 1500 ml capacity. Since water has a density of 1 g/ml, its mass is 1500 g. Water has a specific heat capacity of 4.18 J/°C g. Therefore, the following formula is used to compute the thermal energy of the reaction:

q = 1500 g ×  4.18 J/ °C g × (25.9 - 24.2 °C)

= 10659 J/mol

Hence, for 0.1 mol 10659  × 0.1 = 1065.9 J is the heat energy change for the reaction.

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The molar heat capacity of ethanol is 107 J⋅°C-1mol-1.

What is Molar Heat Capacity?

The amount of heat required to raise the temperature of 1 mole of a substance by 1 unit is known as the molar heat capacity, which is calculated by dividing heat capacity by the total number of moles.

The quantity and size of the substance have an impact on heat capacity, a complex property. A modified notion known as specific heat capacity, or just specific heat, is commonly used in physics. Because it is unaffected by the quantity of the substance, specific heat is a more useful characteristic.

The term "specific heat" refers to the amount of energy required to increase a substance's mass by one unit of temperature. It can be calculated quantitatively as the heat capacity of a substance divided by its mass.

q = amount of heat transferred

n = number of moles

c = molar heat capacity

ΔT = change in temperature

q=ncΔT

The molar heat capacity of ethanol is 107 J⋅°C-1mol-1.

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certain stable nuclide, after absorbing a neutron, emits an electron, and the new nuclide splits spontaneously into two alpha particles. the nuclide.37 X

What are a nucleon and a nuclide?

Summary. Nucleons are the protons and neutrons that make up the nucleus. An atom with a certain number of protons and neutrons is referred to as a nuclide. When an unstable nucleus spontaneously decays, it becomes radioactive, and the emissions it produces are collectively referred to as radioactivity.

ZA

​ X+01

​ x→2 24

​ α+ −10 β

∴Z+0=4−1=3

A+1=8

∴

37 X

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