The ___ of a bottle tells you how much liquid it can hold. what is the anewer

Answer:

On the periodic table, electronegativity generally increases as you move from left to right across a period and decreases as you go down a group. As a result, the most electronegative elements are found on the top right of the periodic table, while the least electronegative elements are found on the bottom left.

Explanation:

Answer:

The Electronegativity increases

Explanation:

;)

Answer:

179g

Explanation:

Molar ratio for Copper : Lithium is

1:2

If there are 89.5g of copper

Grams for Lithium= 89.5 × 2 = 179g of Lithium

The amount of lithium are formed from the reaction if you begin with 89.5 grams of copper is 19.6 grams.

Mass can be converted into moles by using the below equation as:

n = W/M, where

W = given mass

M = molar mass

Moles of 89.5g of copper = 89.5g / 63.5g/mol = 1.4 mol

Given chemical reaction is:

Cu + Li₂S → 2Li + CuS

From the stoichiometry of the reaction, it is clear that

1.4 mole of Cu = produces 1.4 mole of CuS

1.4 mole of CuS = produced by 1.4 mole of Li₂S

1.4 mole of Li₂S = produces 2×1.4=2.8 moles of Li

Mass of 2.8 moles of Li = (2.8mol)(7g/mol) = 19.6g

Hence resultant mass of lithium is 19.6g.

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Answer:

Explanation:

The acceleration of an object given it's velocity and time taken can be found by using the formula

\(a = \frac{v}{t} \\ \)

where

a is the acceleration

v is the velocity

t is the time

From the question we have

\(a = \frac{12}{2} \\ \)

We have the final answer as

Hope this helps you

Answer:

70.88 mL volume of 1.27 M of HCl is required.

Explanation:

Given data:

Initial volume = ?

Initial  molarity =  1.27 M

Final volume = 197.4 mL

Final molarity = 0.456 M

Solution:

Formula:

M₁V₁ = M₂V₂

Now we will put the values in formula.

1.27 M × V₁ =  0.456 M × 197.4 mL

V₁ = 0.456 M × 197.4 mL/1.27 M

V₁ = 90.014M.mL/1.27 M

V₁ = 70.88 mL

70.88 mL volume of 1.27 M of HCl is required.

You would recover 36.525g of NaCl after evaporating all of the water.

To find the grams of NaCl that would be recovered after evaporating all the water, we can use the following formula:

mass = moles * molar mass

Where:

Moles = Molarity * Volume

Molarity = 0.250 M

Volume = 2500.0 mL = 2.5 L

Molar mass of NaCl = 58.44 g/mol

mass = 0.250 M * 2.5 L * 58.44 g/mol

mass = 36.525 g

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The total number of moles of electrons lost by Mg(s) when 2.0 moles of electrons are gained by Ni2+(ag) is also 2.0 moles of electrons.

This is because in a chemical equation, the number of moles of electrons gained by the reducing agent (in this case Ni2+) is equal to the number of moles of electrons lost by the oxidizing agent (in this case Mg(s)).

In this redox reaction, Mg is being oxidized because it loses electrons and Ni is being reduced because it gains electrons. The oxidation and reduction process are occurring simultaneously, so the number of electrons lost by Mg(s) is equal to the number of electrons gained by Ni2+(ag).

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The electrons that are gained by the \(Ni^{2+}\) ion is 2.0 moles of electrons.

We know that when there is a redox reaction, there would be the loss or gain of electrons in the process. The process is a simultaneous one so the electrons that are lost by one specie must as a matter of necessity be gained by another specie.

In this case, as we look at the reaction equation we can see that there are two electrons that have been lost by the magnesium atom and these two electrons would be gained by the Nickel II ion.

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BaSO₄. Option C is correct

The substances that dissolve readily in water are ionic compounds and polar covalent compounds. Examples of ionic compounds that dissolve in water are salts, oxides, hydroxides, sulfides, and the majority of inorganic compounds.

The molecules in a polar solvent have a dipole, like water, one side is more negative and one is more positive.

Ionic compounds are composed of a positive ion, normally a metal, and a negative ion, normally a nonmetal, so their forces are attracted to their charge difference.

Thus, a polar solvent dissolves each ion with its corresponding parts, dissociating the two ions of the ionic compound.

Since sulfides are ionic compounds hence the substance that will dissolve most readily in water is BaSO₄. The molecule is formed by one barium cation Ba2+ and one sulfide anion S2-. The two ions are bound through an ionic bond.

The answer is Hydrogyn bonding. It keeps the water molocules bonded together and in a liquid state, without it it'd be in a gashious state.

Answer:Hydrogen bonds keep them together in room temperature, hope this helps!

Explanation:

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It depends on the powdery  substances that is been dissolved hence it can be  insoluble or partially soluble in water.

To make any granules into useful cleaners, it must first be dissolved in water. But not all powdered raw materials easily dissolve into water, therefore it could take some time to combine them together to get a solution. For a powdered substance, builders must be used for the majority of the cleaning.

Therefore, Powders, which are tiny solids, are frequently only weakly or completely soluble in water. Powder insoluble levels in water rely on a variety of controllable elements, including temperature, humidity, and particle size.

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Answer:

I think its Kr

Explanation:

sorry if I'm wrong

Bromine (Br₂) has the highest melting point among the given elements. Therefore, option (A) is correct.

Intermolecular forces can be described as the attractive and repulsive forces that develop between the molecules of a substance. These forces are responsible for most of the chemical and physical properties of matter. The intermolecular forces between the molecules are Vander Waals forces.

Forces that exist between the molecules themselves are known as intermolecular forces. The particles of solids and liquids are held together by intermolecular forces.

The intermolecular forces are Dipole-Dipole Interactions, Ion-Dipole Interactions, Ion-Induced Dipole Interactions, Dipole-Induced Dipole Interaction, and Dispersion Forces.

As the size of the atoms increases the strength of the intermolecular force also increases and a large amount of energy will be required to break bonds. Since Bromine has the largest size among the all other elements. Therefore, Bromine will have the highest melting point.

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Your question was incomplete, but the complete question was,

On the basis of the strength of intermolecular forces, which of the following elements would be expected to have the highest melting point?

A) Br₂

B) Cl₂

C) F₂

D) N₂

To read the measuring cylinder we first count the number of smaller divisions between the marked interval. In this case it is 10 intervals. The marked intervals are 60 and 80, therefore between these values we have 20. We will now divide the 20 by the 10 intervalswhich is equal to 2. Now each interval has a numerical value of 2. We read from the bottom of the meniscus. The meniscus is ttouching the 5th line and so we say 5 x 2=10, we add this to 60.

Answer: 60+10= 70,

Answer:

The enthalpy of vaporization of H2O is higher than the enthalpy of fusion of H2O, therefore vaporizing the same mass of H2O would require more heat/energy than melting the same mass of H2O.

hope it helps!

To break all the bonds in one mole of molecules with a bond dissociation energy of 1 eV, we would require around 5.80 x \(10^{26}\) kJ of energy.

The bond dissociation energy of 1 eV is roughly 96.485 kJ/mol. To break all the bonds in one mole of molecules (6.023 x \(10^{23}\) molecules), we would need to multiply the bond dissociation energy by Avogadro's number:

96.485 kJ/mol x 6.023 x \(10^{23}\) molecules/mol = 5.80 x \(10^{26}\) kJ/mol

Bond dissociation energy is the amount of energy necessary to break a chemical connection between two atoms. It is also known as bond energy or bond enthalpy. This energy is measured in kilojoules per mole (kJ/mol) and is released when the bond forms. The energies of bond dissociation can vary greatly depending on the type of bond being broken.

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We cannot see it its so small

Also yes it matches your hypothesis

Answer:

C

Explanation:

I think

The statement about nitrogen (N) and phosphorus (P) that is correct is they have the same number of valence electrons. The correct option is B.

The valence electron is those electrons that are present in the last orbitals of the atoms. These are the free electrons that are free to bond with the other atoms to make bonds with the atom.

These electrons are the reason for the reactivity of the elements. The bonds are joined with other atoms' electrons. This element is called reactive. These elements have more valence electrons.

Nitrogen and phosphorus are the elements that are present in the periodic table. They have the same number of electrons, that is 5.

Thus, the correct option is B, the same number of valence electrons.

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Explanation:

An ionic compound is not only composed of one monoatomic ion (there are many other cases).

It is known that a ternary ionic compound is an ionic compound composed of 3 elements. They are composed of one type of cation and one type of anion. Both of them are polyatomic ions.

Answer: An ionic compound composed of three elements.

Answer:

These are the nonmetals.

Answer:

C . the dramatic scenery created by volcanic eruptions attracts tourists.

The statement 'lava flows and lahars clear areas of woodland or agriculture' is a negative aspect of a volcanic eruption (Option B).

In conclusion, the statement 'lava flows and lahars clear areas of woodland or agriculture' is a negative aspect of a volcanic eruption (Option B).

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100Eu+e 16S---Sm150  represents alpha decay because  minimum penetration power and highest ionization power.

A positively charged particle similar to the helium-4 nucleus is spontaneously released during alpha decay. Two protons and two neutrons make up this particle, also referred to as an alpha particle. Sir Ernest Rutherford made the discovery and gave it a name in 1899.

The nuclei of heavy elements like radium, uranium, thorium, etc. undergo alpha decay. When a radium (Ra) nucleus decays, it releases an alpha particle and transforms into a radon (Rn) nucleus.

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Answer: False

Explanation: Eggs are produced during ovulation once a month when someone has a period.

Answer:

32.6 kj

Explanation:

Answer:

If there are more products than reactants, that means the reaction has shifted towards the left, which is the backward direction. If there are more reactants than products, that means the reaction has shifted towards the right, which is the forward direction.

Answer:

Br-CH2-CH(CH3)2-C(Cl)H-CH(CH3)2-CHO

Explanation:

The molecule has a total of 14 carbon atoms, 13 hydrogen atoms, and 1 bromine atom. The carbon atoms are arranged in a chain with a methyl group attached to the second carbon atom, a chlorine atom attached to the third carbon atom, and two methyl groups attached to the fourth carbon atom. The fifth carbon atom has a carbonyl group attached to it.

The molecule is an aldehyde, which means that it has a carbonyl group (C=O) at the end of the chain. The carbonyl group is polar, and the oxygen atom has a partial negative charge. The hydrogen atom has a partial positive charge. This polarity makes the aldehyde group susceptible to nucleophilic attack.

The bromine and chlorine atoms are both electrophilic, which means that they have a partial positive charge. This makes them susceptible to nucleophilic attack.

The methyl groups are non-polar and do not have any significant reactivity.

The molecule is a chiral molecule, which means that it has a mirror image that is not superimposable on itself. This is because the carbon atom with the carbonyl group is attached to four different groups.

The molecule is a liquid at room temperature and has a strong odor. It is used in a variety of products, including perfumes, flavorings, and plastics.

Answer:

d. Using leaded gasoline in automobiles.

Explanation:

The use of leaded gasoline is not used to reduce the amount of acid rain, because the element lead it is not part os the elements that produced the acid rain.

917Kg/m³ is the density of 50,000 m³ iceberg of mass of 45,850,000kg. Grams per cubic centimeter are a typical unit of measurement for density.

Density is the mass of a specific material per unit volume. d = M/V, in which d is density, M is weight, and V is volume, is the formula for density. Grams per cubic centimeter are a typical unit of measurement for density. For instance, whereas Earth has a density of 5.51 grams per square centimeter, water has a density of 1 gram per cubic centimeter.

Another way to state density is in kilograms per cubic meter. For instance, air weighs 1.2 pounds per cubic metre. In textbooks and manuals, the densities of typical solids, liquids, as well as gases are stated.

density= mass/ volume

         = 45,850,000 /50,000

         = 917Kg/m³

Therefore, 917Kg/m³ is the density of 50,000 m³ iceberg of mass of 45,850,000kg.

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The molar mass of the non-electrolyte solute is 285.7 g/mol.

The freezing point of cyclohexane is 6.6°C

The freezing point depression, ΔT, of hexane by the unknown non-electrolyte will be:

ΔT = 5.1  - 6.6

ΔT = 1.5 °C

Recall that ΔT = iKfm

where;

For the solution:

i = 1

Kf for cyclohexane = 20.2 deg⋅kg/mole of solute

m = ?

m = ΔT/iKf

m = 1.5/1 * 20.2

m = 0.07 molal

Molality = moles of solute/mass of solvent in kg

mass of solvent = 2.50 g or 0.0025 kg

moles of solute = 0.07 * 0.0025

moles of solute = 0.000175 moles

0.050 g of the non-electrolyte = 0.000175 moles

Molar mass of the non-electrolyte = 0.05/0.000175

Molar mass of the non-electrolyte = 285.7 g/mol

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Answer:

CaCl3 is the limited reagent

Explanation:

The volume of 12 gas forms when 21 L Cl2 react at STP is 21 L.

To determine the volume of 12 gas (I assume you mean I2 gas) formed when 21 L of Cl2 reacts at STP (standard temperature and pressure), we need to use the ideal gas law equation.

The ideal gas law equation is given by:

PV = nRT

Where:

P = pressure

V = volume

n = number of moles

R = ideal gas constant

T = temperature

At STP, the pressure is 1 atm, and the temperature is 273.15 K.

From the balanced equation, we can see that the molar ratio between Cl2 and I2 is 1:1. So, if 21 L of Cl2 reacts, it will produce an equal volume of I2 gas.

Given that the volume of Cl2 is 21 L, we can assume the volume of I2 gas formed will also be 21 L.

Therefore, the volume of I2 gas formed is 21 L.

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In order to determine whether there is a significant difference between two samples, the Student's t-test examines their mean and standard deviation.

A significant t-score, also known as a t-value, denotes a difference between the groups, whereas a small t-score denotes similarity. Degrees of freedom are the values in a research that have the flexibility to change, and they are crucial for determining the significance and reliability of the null hypothesis.

This test is used when specimens from two distinct populations, species, or groupings are compared and analyzed. The independent T-test is another name for it.

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