aqueous silver nitrate reacts with aqueous potassium bromide to form aqueous potassium nitrate and solid silver bromide . write a balanced chemical equation for this reaction.

Answer:

Simple distillation

Answer:

The marble

Explanation:

Even though they both have kinetic energy, the marble has more since the weight of the bowling ball is heavier, leaving it to stop faster than the marble itself.

A known volume of 0.1 M solution of hydrobromic acid is reacted with 25 mL and the concentration of the potassium hydroxide is calculated from the stoichiometry of the reaction.

Titration is a kind of reaction in which the concentration of an unknown solution is determined by reacting a known volume of this solution with a known volume of a standard solution and carrying out the necessary stoichiometric calculations in order to obtain the concentration of the unknown solution.

To obtain the concentration of the potassium hydroxide solution, 25mL of this solution is reacted with a carefully measured volume of the  0.1 M solution of hydrobromic acid. The volume of  0.1 M solution of hydrobromic acid required to reach end point is used calculate the concentration of the potassium hydroxide solution.

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Answer:

when the electron moves from the first orbit to the third it gains energy  but when it jumps from a higher energy orbit to a lower the energy is being radiated. So whihever is the higher energy you know what it is.

Explanation:

Answer: So  ever is the higher energy you know what it is.

Explanation:

Answer: C. The number of atoms of each element is the same on each side of the equation.

Explanation:

The Law of Conservation of Matter shows that it is not possible for matter to either be created nor for it to be destroyed so the number of atoms of each element on the reactant side of the equation must equal the number of atoms in each element on the product side of the equation.

This is why the following equation is incomplete:

H₂ + O₂ ⇒ H₂O

The oxygen atoms are not the same on either side.

Equation will therefor have to be balanced which will make it:

2H₂ + O₂ ⇒ 2H₂O

Notice now that atoms are the same on both sides.

Answer: mitochondria

Explanation:

it affects the cell because it produces the power of the cell, let me know if this helpes

Answer:

NH4)3PO4

this is a filler: jsjdkflflflsojsskksdnfkdod

Answer:

influence of a business invironment

There are 8.78 x 1024 atoms of phosphorus in 7.30 mol of copper (II) phosphate.

The given compound is copper (II) phosphate, which has the molecular formula Cu₃(PO₄)₂.

To determine the number of phosphorus atoms present in 7.30 mol of the compound, we need to use Avogadro's number (6.022 x 1023) and the stoichiometric coefficients of the atoms in the compound.

Let's first find the molar mass of copper (II) phosphate.

Cu₃(PO4)2 = 3Cu + 2PO₄

Cu = 63.55 g/mol

PO₄ = 94.97 g/mol

Total molar mass

= 3(63.55) + 2(94.97)

= 380.7 g/mol

Now we can find the number of moles of copper (II) phosphate in 7.30 mol.

Moles of Cu₃(PO₄)₂ = mass/molar mass

= 7.30 mol x 380.7 g/mol

= 2778.81 g

Next, we can find the number of formula units of Cu₃(PO₄)₂ that corresponds to 7.30 mol.

N = (moles of Cu₃(PO₄)₂) x Avogadro's number

= 7.30 mol x 6.022 x 1023

= 4.39 x 1024 formula units

Finally, we can find the number of phosphorus atoms in 4.39 x 1024 formula units of Cu₃(PO₄)₂.

Number of phosphorus atoms

= 4.39 x 1024 x 2 x 1

= 8.78 x 1024 atoms (since each formula unit contains 2 phosphorus atoms)

Therefore, there are 8.78 x 1024 atoms of phosphorus in 7.30 mol of copper (II) phosphate.

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The answer is: In a tightly closed container, in a cool, well-ventilated area. Hydrochloric acid is a strong acid that should be stored in a tightly closed container in a cool, well-ventilated area.

Hydrochloric acid (HCl) is a colorless, corrosive, and highly acidic aqueous solution. It is a very strong acid with a pH of 0 to 1, which indicates that it can dissolve metals and other substances quite easily. It is commonly used in a variety of industrial applications, such as leather production, food processing, and ore processing. It can be quite harmful if it comes into touch with skin, eyes, or other organs, so safety precautions should always be taken while handling it.

Hydrochloric acid is a highly corrosive and reactive chemical that should be kept in a tightly closed container in a cool, well-ventilated area. This is to ensure that the fumes generated by the acid do not build up in the area, as they can be harmful to human health. Moreover, hydrochloric acid should never be kept in a beaker or flask, as these containers can easily break or spill, causing injury to those nearby.

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Answer:

ok.

Explanation:

you're answers are correct.

For the hypothetical atom with a mass number of 85 and an atomic number of 44, a real atom of this isotope (Ruthenium) would have:

Protons (p) = 44

Neutrons (n) = 41

Electrons (e) = 44

The hypothetical atom with a mass number of 85 and an atomic number of 44 represents an isotope of the element Ruthenium (Ru). To determine the number of protons, neutrons, and electrons in a real atom of this isotope, we need to understand the atomic structure.

The atomic number (Z) represents the number of protons in an atom. Since the atomic number is given as 44, the number of protons (p) in the atom is 44.

The mass number (A) represents the total number of protons and neutrons in the nucleus of an atom. In this case, the mass number is given as 85. Therefore, the number of neutrons (n) can be calculated by subtracting the atomic number (protons) from the mass number:

Neutrons (n) = Mass number (A) - Atomic number (Z)

Neutrons (n) = 85 - 44

Neutrons (n) = 41

To determine the number of electrons (e), we assume that the atom is neutral, meaning it has an equal number of protons and electrons. Therefore, the number of electrons is also 44.

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The mutated amino acid at position 229 is arginine (Arg), and its substitution can potentially disrupt the 3D structure and alter the function of the protein due to changes in side chain properties and interactions.

Structure of the Amino Acids:

The wild-type amino acid at position 229 is not specified, so the structure cannot be provided.

The mutated amino acid is arginine (Arg), which has a side chain containing a positively charged guanidinium group.

Importance of the Position:

The specific position 229 in the protein sequence may be functionally significant, such as being involved in protein-protein interactions, binding sites, catalytic activity, or structural stability.

Without detailed knowledge of the protein, its function, and its structural context, it is difficult to determine the exact importance of this specific position.

Effects of the Mutation on Structure and Function:

The substitution of an amino acid at position 229 from the original to arginine can have various effects on protein structure and function.

Arginine's larger and positively charged side chain may introduce steric clashes or alter electrostatic interactions within the protein structure.

The mutation can potentially disrupt local or global protein folding, stability, or conformational changes, affecting its overall 3D structure.

The functional consequences of the mutation depend on the specific role of the amino acid at position 229, which can include changes in protein-protein interactions, enzymatic activity, substrate binding, or signal transduction pathways.

It is crucial to analyze the protein's structural context, available experimental data, and computational modeling techniques to gain a more accurate understanding of the specific effects of the mutation on the protein's structure and function in the given context.

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Hydrogen is the smallest chemical element because it consists of only one proton in its nucleus. Its symbol is H, and its atomic number is 1 .It has an average atomic weight of 1.0079 amu, making it the lightest element.

a.1.00784 u

b.Atomic-36

Kr

Krypton

Atomic Weight. 83.80

That means that there must be a balance between the positively charged protons and the negatively charged electrons. Atoms must have equal numbers of protons and electrons. In our example, an atom of krypton must contain 36 electrons since it contains 36 protons. Electrons are arranged around atoms in a special way.

Answer:

23.3 g/mol

Explanation:

The molar mass of 18.12 g of gas exerts a pressure of 3.05 atm on the walls of a 5.85 L container at 280 K is 23.3 g/mole.

Molar mass is the concentration of a substance that is present in a specific liquid. It is also called the concentration of a substance.

The molar mass can be calculated by the formula of an ideal gas:

PV = nRT

P is the pressure

V is the volume

n is the number of moles

R is the constant of gas.

T is the temperature.

The given amounts are the molar mass of 18.12 g.

The pressure is 3.05 atm.

The volume is  5.85 L

The temperature is 280 K

Putting the value in the equation

n = PV/RT = (3.05) (5.85) / (0.0821) (280) = 0.777 moles of gas

Molar mass = 18.12 g/0.777 moles = 23.3 g/mole

Thus, the Molar mass is 23.3 g/mole.

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Answer:

Permeability.

Explanation:

The ability of a rock or soil to allow water to flow through it is call permeability. Materials such as gravel that allow the flow of water are permeable. Materials such as clay or granite that do not allow the flow of water are impermeable.

When we draw a potential energy (PE) curve for the interaction of two atoms, we are essentially plotting the energy of the system as a function of the distance between the two atoms.

In the case of Ne and Xe, the PE curve for both atoms will have a similar shape, but the relative depths of the potential wells and the positions of the minima along the x-axis will differ.
The relative depths of the potential wells represent the stability of the interaction between the two atoms. A deeper potential well indicates a more stable interaction, while a shallower potential well indicates a less stable interaction. The relative depths of the potential wells for Ne and Xe will be different due to the differences in their atomic radii. Xe is a larger atom than Ne, and therefore the attractive forces between the two atoms will be stronger, resulting in a deeper potential well.

The relative positions of the minima along the x-axis represent the equilibrium bond distance between the two atoms, which is the distance at which the potential energy is minimized. The equilibrium bond distance for Xe will be greater than that for Ne due to the larger atomic radius of Xe. This means that Xe atoms will be more likely to form bonds at longer distances than Ne atoms.

In summary, the PE curves for Ne and Xe will have similar shapes but different relative depths of potential wells and positions of minima due to the differences in their atomic radii. Xe will have a deeper potential well and a greater equilibrium bond distance than Ne.

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Answer:

0 is the answer

Explanation:

because hydrogen doesn't take up space

The mass percentage of the hydrogen in the compound C₃H₆O is 10.34 %.

The percentage of an element in a given compound can be defined as the number of parts by mass of that chemical element present in 100 parts by mass of the given chemical compound.

The mass percentage of a chemical element can be calculated in two steps: First, calculate the molecular mass of the given compound by the addition of the atomic masses of all the elements. Then, the percentage of the element can be calculated by dividing the total mass of that element in the compound by the molar mass of the compound multiplied by 100.

Given, the molecular formula of the given compound is  C₃H₆O. The atomic mass of carbon, hydrogen, and oxygen is 12 g, 1 g, and 16g respectively.

The molecular mass of the compound =  3(12) + 6(1) + 1(16) = 58 g

The mass percentage of the hydrogen = (6/58) × 100 = 10.34 %

Therefore, the mass percentage of the hydrogen is equal to 10.34%.

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Answer:

D) Cyanidin indicator

Explanation:

Cyanidin indicator has to be used in order to get an emerald green color at a pH of 9.

Indicators are substances that change colour when they are added to acidic or alkaline solutions.

In nature, cyanidin is a reddish-purple (magenta) pigment. It is the major pigment in berries [4] and other red-coloured vegetables such as red sweet potato and purple corn. It appears as a blue-reddish or purple pigment in the plant.

Cyanidin indicator has to be used in order to get an emerald green colour at a pH of 9.

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These substances can burn the skin, eyes, and mucous membranes and can also cause respiratory issues, such as lung damage or asthma. Overall, strong acids and bases are hazardous chemicals that must be handled with extreme care to avoid injury and environmental damage.

Strong acids and bases belong to the class of chemical hazards. Strong acids and bases are corrosive materials, which means they can cause severe damage to living tissues, including skin and eyes. The potential severity of strong acids and bases makes them hazardous chemicals. An acid is a substance that donates a hydrogen ion (H+) to another substance, whereas a base accepts an H+ ion. When a strong acid is mixed with water, it will break down almost entirely, releasing H+ ions. Some examples of strong acids include sulfuric acid, hydrochloric acid, and nitric acid. These acids can cause severe burns and can even corrode metal. Bases are substances that produce OH- ions when they dissolve in water. Strong bases like sodium hydroxide and potassium hydroxide can be highly corrosive and can cause severe damage to tissues. These substances can burn the skin, eyes, and mucous membranes and can also cause respiratory issues, such as lung damage or asthma.Overall, strong acids and bases are hazardous chemicals that must be handled with extreme care to avoid injury and environmental damage.

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Answer:molecular

Explanation: got it right on acellus

The type of solid this particle model represents is a molecular solid.

Molecular solids are a type of solid composed of individual molecules held together by intermolecular forces. Unlike ionic solids or metallic solids, where the bonding is primarily due to strong electrostatic forces or delocalized electrons, respectively, molecular solids are held together by relatively weaker intermolecular forces.

In molecular solids, the individual molecules are discrete entities that retain their molecular structure even in the solid state.

Therefore, the correct option is option C

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A) The volume of hydrogen container is the same as the volume of the oxygen container. This statement is false for the given gases are at the same temperature and pressure.

According to the ideal gas law PV = nRT, the volume of a gas sample is proportional to the number of moles of the gas present, assuming that the pressure and temperature are constant. Since the number of moles of hydrogen is much less than the number of moles of oxygen (0.50 grams of hydrogen is roughly equivalent to 0.01 moles while 8.0 grams of oxygen is roughly equivalent to 0.2 moles), the volume of the hydrogen container would be much smaller than the volume of the oxygen container.

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two flexible containers for gases are at the same temperature and pressure. one holds 0.50 grams of hydrogen and the other holds 8.0 grams of oxygen. which of the following statement regarding these gas samples is false?

A)the volume of hydrogen container is the same as the volume of the oxygen container

B) the number of molecules in the hydrogen container is the same as the number of molecules in the oxygen container

C) the density of hydrogen sample is less than that of oxygen sample

D) the average kinetic energy of the hydrogen molecules is the same as the average kinetic energy of the oxygen molecules

E) The average speed of hydrogen molecules is the same as the oxygen molecules

Answer: "C the long-term survival of an entire species of organisms."

Explanation:

A - Yes, reproduction of the species is part of Evolution, it is not the best answer for the question taking into account the other possible answers.

B - Evolution is not necessarily a short-term thing, Evolution occurs over a long period of time.

C - *Refer to the explanation above.*

D - This answer has more to do with Ecosystems, rather than Evolution/Natural Selection.

The Cl−P−Cl angle for two adjacent Cl atoms in PCl₆⁻ (hexachlorophosphate ion) is approximately 90 degrees.

In the PCl₆⁻ ion, phosphorus (P) is surrounded by six chlorine (Cl) atoms. The geometry of the ion can be described as octahedral, with the P atom at the center and the six Cl atoms at the vertices of an octahedron.

In an octahedral geometry, the bond angles between the central atom (P) and the surrounding atoms (Cl) are generally around 90 degrees. This includes the Cl−P−Cl angles for adjacent Cl atoms in the PCl₆⁻ ion.

Therefore, the Cl−P−Cl angle for two adjacent Cl atoms in PCl₆⁻ is approximately 90 degrees.

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Grams of ammonium chloride are formed when 1.1 L of hydrogen chloride gas and 1.1 L of ammonia gas react. The density of the hydrogen chloride gas is 1.6 g/L and the density of ammonia is 0.77 g/L is 1.068 g.

given that :

volume of hydrogen chloride gas = 1.1 L

volume of ammonia = 1.1 L

Density of  hydrogen chloride gas = 1.6 g/L

Density of  ammonia = 0.77 g/L

the reaction is :

NH₃   +  HCl    --->    NH₄Cl

mass of HCl = D × v

                    = 1.6 × 1.1 = 1.76 g

mass of ammonia = 0.77 × 1.1 = 0.84 g

no. of moles of ammonia = mass / molar mass

                                = 0.84 / 36.4

                                = 0.02 mol

1 mole of ammonia produced 1  mole of NH₄Cl

therefore, 0.02 mol of ammonia produce = 0.02 mole of NH₄Cl

mass of NH₄Cl , ammonium chloride = no. of moles × molar mass

                                                             = 0.02 × 53.4

                                                             = 1.068 g

Thus, Grams of ammonium chloride are formed when 1.1 L of hydrogen chloride gas and 1.1 L of ammonia gas react. The density of the hydrogen chloride gas is 1.6 g/L and the density of ammonia is 0.77 g/L is 1.068 g.

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The solutions that can be used to precipitate Mg2+ from an aqueous solution of MgCl2 are NH3(aq) and H2SO4(aq).


Mg2+ is a metal ion that forms precipitates with anions that have a high charge density, such as OH- and SO42-. Therefore, solutions that contain these anions can be used to precipitate Mg2+ from an aqueous solution of MgCl2.

NH3(aq) reacts with water to produce OH- ions, which can then react with Mg2+ to form Mg(OH)2, a precipitate:

Mg2+ + 2OH- → Mg(OH)2

H2SO4(aq) dissociates in water to produce H+ and SO42- ions. The SO42- ions can then react with Mg2+ to form MgSO4, a precipitate:

Mg2+ + SO42- → MgSO4

Therefore, the solutions that can be used to precipitate Mg2+ from an aqueous solution of MgCl2 are NH3(aq) and H2SO4(aq).

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Hey can u give me brainliest and thanks

The volume of the aqueous solution of sodium sulfate required is 153.85 mL.

The number of moles of the salt in the given mass is calculated as follows;

moles = reacting mass / molar mass

molar mass of  sodium sulfate = 142 g/mole

moles = (4.27) / (142)

moles = 0.03 mole

Concentration = moles/volume in liters

0.195 = 0.03/V

V = 0.03/0.195

V = 0.15385 liters

V = 153.85 mL

Thus, the volume of the aqueous solution of sodium sulfate required is 153.85 mL.

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