Chemistry students were testing compounds in an aqueous solution to see which one had the strongest electrical current. There are three beakers each with a different compound. The first beaker and the second beaker lit the light bulbs brightly. The third beaker did not light up the bulb. With the information that is provided, what is the best explanation for the first and second beaker being the strongest electrolytes?

A)The first and second beakers contain a solution that partially dissociates the ions. These ions create an electrical current. The third beaker solution completely dissociates the ions. It is a strong electrolyte.

B)The first and second beakers contain a solution that completely dissociates the ions. These ions create an electrical current. The third beaker solution does not dissociate ions. It is a nonelectrolyte.

C)The first and second beakers contain a solution that does not dissociate ions. These ions create an electrical current. The third beaker solution completely dissociates the ions. It is a strong electrolyte.

D)The first and second beakers contain a solution that completely dissociates the ions. These ions do not create an electrical current. The third beaker solution does completely dissociates the ions. It is a strong electrolyte.

The correct response is b) N - H. Because nitrogen is one of the most electronegative elements in the periodic table, its bond with hydrogen will be the most polar of all.

A polar covalent bond is a covalent association in which the atoms' electron attraction is uneven, resulting in unequal electron sharing. In a polar covalent bond, also known as a polar bond, the distribution of electrons surrounding the molecule is no longer symmetrical. Polar covalent bonds have an unequal distribution of electrons. The difference in electronegativity between the two elements would be between 0.4 and 1.7. The electronegativity gap between polar and nonpolar bonds is less than 0.4.

In this case, the right answer is b) N - H. Because nitrogen is one of the periodic table's most electronegative elements, its bond with hydrogen will be the most polar of all.

For more information on polar bonds, visit https://brainly.com/question/24775418

#SPJ4

Antimony

Hope it helps

Answer:

\(\boxed {\boxed {\sf 1. \ Antimony}}\)

Explanation:

A metalloid is an element that is "in between" a metal and non-metal. They display some properties of both.

On the Periodic Table, the metalloids are found in a zig-zag step pattern to the right of the metals and the left of the non-metals.

There are 7 metalloids: boron, silicon, germanium, arsenic, antimony, tellurium, and polonium.

So, the correct answer is 1. Antimony

Answer:

Atomic mass i believe..

Answer:

I think it's False

Explanation:

Explanation:

The amount of water in, on, and above our planet does not increase or decrease because of the water cycle

So it's false

Answer:

where the main questions of these assmesnt

Explanation:

After your body has used all the energy it needs, leftover glucose is stored in the liver and muscles. We can store enough fuel for about a day, if you haven't eaten in a while, your blood glucose level drops. :)

Hope this helps!

Answer:

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question we have

mass = 0.251 × 1000

We have the final answer as

Hope this helps you

Ao H+HH OH

santa said he will eat shower curtian at 2 am

The web's connectivity advantage allows for data and resource sharing that enables communication with a website.

In our daily lives, communication helps us build relationships by allowing us to share experiences and needs and connect with others. It is the essence of life that allows us to share We all need to communicate.

In our daily lives, communication helps us build relationships by allowing us to share experiences and needs and connect with others. It is the essence of life that can be shared. We all need to communicate. Effective communication results in a sense of satisfaction and accomplishment for all involved. Clearly communicating your message leaves no room for misunderstandings or message changes, and reduces the chance of conflicts.

Learn more about   communication here

https://brainly.com/question/26152499

#SPJ4

Answer:

2486 g

Explanation:

First we calculate how many moles of MgBr₂ are required to create such a solution, using the definition of molarity and the given volume and concentration:

Now we convert 13.5 moles of MgBr₂ into grams, using its molar mass:

Answer:

When you mix silver nitrate and hydrochloric acid it is a chemical

change.

Explanation:

Physical change: You are changing the form of a chemical substance, but not, chemical composition.

- Physical changes are used to separate mixtures into their component compounds, but cannot usually be used to separate compounds into chemical elements or simple compounds.

Chemical Change: Occurs when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances.

- These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.

When you mix silver nitrate and hydrochloric acid it is a chemical change.

Physical changes are changes which affecting the form of chemical substances but not it's chemical composition. Physical change are the processes in which we can separate mixture from compound, but can't usually be used to separate compound into chemical elements or simplest compound.

Physical change takes place when mixture are can't separate by chemical changes then we separate by the help of physical change. In general a physical change is reversible using physical means.

Silver is a shiny metal that conducts electricity very well . It can be molded into thin sheets it means it can spread into a like a sheet and these type of properties is known as malleability.

Potassium is dull and brittle it means that it can't be change into sheet when you try to change in sheet it will break and these properties are called as brittlness. And when it is has been dissolved into water, which it does quite easily. Physical properties of matter include color, hardness, malleability, solubility, electrical conductivity, density, melting points and boling points.

Therefore, When you mix silver nitrate and hydrochloric acid it is a chemical change.

Learn more about physical change here:

https://brainly.com/question/17931044

#SPJ2

Answer:

a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.

Explanation:

2. Similarities and Differences between Bronsted-Lowry and Lewis Theory:

Similarities:

- Both theories describe the interactions between acids and bases.

- Both theories consider the concept of conjugate acid-base pairs.

- Both theories are applicable to a wide range of acid-base reactions.

- Both theories provide explanations for the formation of new bonds during acid-base reactions.

Differences:

- The Bronsted-Lowry theory focuses on proton transfer, while the Lewis theory focuses on electron pair transfer.

- Bronsted-Lowry theory is more limited in its scope, as it does not account for acid-base reactions that do not involve proton transfer.

- Lewis theory is more comprehensive and can explain a wider range of reactions, including those involving coordination compounds and non-aqueous systems.

- Bronsted-Lowry theory is more commonly used in aqueous solutions and acid-base chemistry, while Lewis theory finds applications in various areas, including coordination chemistry and Lewis acid-base catalysis.

3. Conjugate Acid and Base Lewis Structures are simplified representations that show the connectivity of atoms and the lone pairs. They do not depict the three-dimensional geometry or the precise bond angles.

2. Similarities and Differences between Bronsted-Lowry and Lewis Theory:

Bronsted-Lowry Theory:

- Focuses on proton (H+) transfer between acids and bases.

- Defines an acid as a proton donor and a base as a proton acceptor.

- Acid-base reactions involve the transfer of a proton from the acid to the base.

- The concept of conjugate acid-base pairs is central to this theory.

Lewis Theory:

- Focuses on electron pair donation and acceptance in acid-base reactions.

- Defines an acid as an electron pair acceptor and a base as an electron pair donor.

- Acid-base reactions involve the formation of coordinate covalent bonds through the donation and acceptance of electron pairs.

- The concept of Lewis acid-base adducts, where the Lewis acid coordinates with the Lewis base, is central to this theory.

Similarities:

- Both theories describe the interactions between acids and bases.

- Both theories consider the concept of conjugate acid-base pairs.

- Both theories are applicable to a wide range of acid-base reactions.

- Both theories provide explanations for the formation of new bonds during acid-base reactions.

Differences:

- The Bronsted-Lowry theory focuses on proton transfer, while the Lewis theory focuses on electron pair transfer.

- Bronsted-Lowry theory is more limited in its scope, as it does not account for acid-base reactions that do not involve proton transfer.

- Lewis theory is more comprehensive and can explain a wider range of reactions, including those involving coordination compounds and non-aqueous systems.

- Bronsted-Lowry theory is more commonly used in aqueous solutions and acid-base chemistry, while Lewis theory finds applications in various areas, including coordination chemistry and Lewis acid-base catalysis.

3. Conjugate Acid and Base Lewis Structures:

a) NH3:

Conjugate acid of NH3: NH4+

Lewis structure of NH4+:

H

|

H - N

|

H

Conjugate base of NH3: NH2-

Lewis structure of NH2-:

H

|

H - N -

|

H

b) H2PO4−:

Conjugate acid of H2PO4−: H3PO4

Lewis structure of H3PO4:

    O

   ||

H - P - OH

   |

   OH

Conjugate base of H2PO4−: HPO42-

Lewis structure of HPO42-:

    O

   ||

H - P - O

   |

   OH

c) HCO3−:

Conjugate acid of HCO3−: H2CO3

Lewis structure of H2CO3:

   O

   ||

H - C - OH

   |

   OH

Conjugate base of HCO3−: CO32-

Lewis structure of CO32-:

   O

   ||

C - O

   |

   O

The Lewis structures provided are simplified representations that show the connectivity of atoms and the lone pairs.

Learn more about Bronsted-Lowry Theory https://brainly.com/question/15516010

#SPJ11

The given reaction is a double replacement reaction; option B.

A chemical reaction is a reaction in which chemical changes occurs in the atoms of reactants which results in the formation pf products.

The given reaction is as follows:

Since exchange of ions occur, it is a double replacement reaction.

Learn more about double replacement reaction at: https://brainly.com/question/5564504

#SPJ1

The mass of sucrose needs to be dissolved will be "97.5 g".

A cube of sugar or sweetener that is composed of yet another molecule of glucose as well as one component of fructose linked simultaneously.

According to the question,

Mass percentage = 15%

Total mass = 650 g

Let,

The mass of sucrose be "x".

Now,

The mass of sucrose will be:

→ 0.15 = \(\frac{x}{650}\)

By applying cross-multiplication, we get

        x = 0.15 × 650

           = 97.5 g

Thus the above answer is appropriate.

Find out more information about sucrose here:

https://brainly.com/question/211758

The correct name of the compound is dinitrogen pentoxide.

We know that we can be able to name a compound from the formula of the compound. This is the whole essence of the IUPAC nomenclature. The International Union of Pure and Applied Chemistry put forward some standard rules  that can be applied when we are naming a compound.

We can see here that we have two atoms of nitrogen and five atoms of oxygen in the compound and this would have to reflect as we name the compound and this also as we can see do  derive directly from the molecular formula of the compound.

Learn more about IUPAC name:https://brainly.com/question/16631447

#SPJ1

Answer:

Incase you have H and F and another H and F

The concentration of the final solution is 0.157 M.

To calculate the concentrations of the second and final solutions, we can use the formula:

C1V1 = C2V2

where C1 is the initial concentration, V1 is the initial volume, C2 is the final concentration, and V2 is the final volume.

For the first dilution, we have:

C1 = 1.40 M

V1 = 59.0 mL

V2 = 238 mL

Solving for C2, we get:

C2 = (C1V1) / V2

  = (1.40 M × 59.0 mL) / 238 mL

  = 0.346 M

So the concentration of the second solution is 0.346 M.

For the second dilution, we have:

C1 = 0.346 M

V1 = 119 mL

V2 = 119 mL + 143 mL = 262 mL

Solving for C2, we get:

C2 = (C1V1) / V2

  = (0.346 M × 119 mL) / 262 mL

  = 0.157 M

So the concentration of the final solution is 0.157 M.

To know more about concentration , refer here:

https://brainly.com/question/10725862#

#SPJ11

Answer:

Its A, C and D

Explanation:

A= correct because when you add heat to a solid it starts to melt and turn to liquid

B= Incorrect because the more heat that's dded the faster the atoms in the object will move and that creates energy

C= Correct because the liquid is in fact changing to a gas as more heat is added.

D= Correct because as i explained in B the more heat added the more energy is there

Answer:

weight of hydrogen÷eq weight of hydrogen=weight of metal÷equivalent weight of metal

yo formula lagayera nikalne

yesma pressure ko kei kaam hunna

Answer:

Hii,kusha

ek problem hó rahi hai mujhe

The enthalpy of the reaction is 14 J/mol.

The enthalpy of a reaction (ΔH) is the amount of energy transferred between a system and its surroundings during a chemical reaction at constant pressure, measured in joules per mole (J/mol). This value is important because it can tell us whether a reaction is exothermic or endothermic, as well as give us information about the strength of chemical bonds within the reactants and products.To calculate the enthalpy of a reaction, we need to know the amount of energy released or absorbed (Q) and the number of moles of the compound involved in the reaction (n). We can use the equation:
ΔH = Q/n
Given that 6 moles of a compound produce 84 J of energy, we can calculate the enthalpy of the reaction as follows:
ΔH = Q/n
ΔH = 84 J / 6 mol
ΔH = 14 J/mol
This means that for every mole of the compound involved in the reaction, 14 J of energy is transferred between the system and the surroundings. Since the value is positive, we can conclude that the reaction is endothermic, meaning that it requires an input of energy to occur.It is worth noting that the enthalpy of a reaction can depend on a number of factors, such as temperature, pressure, and the specific conditions under which the reaction occurs. As such, it is important to take these factors into account when calculating or predicting enthalpy values.

for such more questions on enthalpy

https://brainly.com/question/14047927

#SPJ8

Answer:

The reactivity of the halogen group (group 17) decreases

from top to bottom within the group. Fluorine is the

most reactive halogen, while iodine is the least. Since

chlorine is above bromine, it is more reactive than

bromine and can replace it in a halogen replacement

reaction.

hope it help ❤️

#learn more about brainly

In a chemical reaction which is replacement reaction type, a non-metal which is more reactive than chlorine would displace it , and the non-metal more reactive than it is fluorine.

Chemical reactions are defined as reactions which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical reaction.

There are several characteristics of chemical reactions like change in color, change in state , change in odor and change in composition . During chemical reaction there is also formation of precipitate an insoluble mass of substance or even evolution of gases.

There are three types of chemical reactions:

1) inorganic reactions

2)organic reactions

3) biochemical reactions

During chemical reactions atoms are rearranged and changes are accompanied by an energy change as new substances are formed.

Learn more about chemical reaction,here:

https://brainly.com/question/14929452

#SPJ2

The compound in which the octet is expanded to include 12 electrons is SF6 (sulphur hexafluoride). In SF6, the sulphur atom has six fluorine atoms surrounding it, and in order to bond with all six fluorine atoms, the sulphur atom must have an expanded octet, meaning it has 12 electrons in its outermost energy level.

The octet is expanded to include 12 electrons in compounds where the central atom can accommodate more than eight electrons. Such compounds typically involve elements from the 3rd period or below. A common example is sulfur hexafluoride (SF6), where sulfur has an expanded octet of 12 electrons.

The inorganic compound sulphur hexafluoride is a colourless, odourless, nonflammable, and nontoxic gas. With six fluorine atoms joined to a central sulphur atom, SF6 has an octahedral structure. As might be expected for a non-polar gas, SF6 dissolves poorly in water but readily in non-polar organic solvents. At sea level, it has a density of 6.12 g/L, which is significantly higher than the density of air (1.225 g/L). It is often carried as a compressed gas that has been liquefied.

Learn more about sulphur hexafluoride : https://brainly.com/question/22642298

#SPJ11

Answer:

1.1 for 3d, 0.76 for 16d.

Explanation:

You divide the mass of one nail by the nail size.... I think

Answer:

1.)REACTANT

Answer:

There are 0.311 moles of  gas in the tank

Explanation:

Complete question

A 4.00g sample of gas is found to exert a pressure of 1.71 atm when confined in 3.60L container at a temperature of 241 K. Find the number of moles of the gas

Solution

As we know

\(PV = nRT\)

where P is the pressure of the gas in atm

V is the volume in liters

n is the number of moles

R is the gas constant = 0.08206 L·atm/K·mol

and T is the temperature in Kelvin

Substituting the given values in above equation, we get -

\(1.71 * 3.60 = n * 0.08206 * 241\\n = 0.311\)

There are 0.311 moles of  gas in the tank

the pressure of the gas increases

Answer:

The number of collisions of gas particles increases.

Explanation:

Just took the test!!!