Need helppppiiopplkkooExplain why NH₄ClO₃ is really two ions stuck together, despite how it may appear.

Answer:

KCl and Ba(OH)₂.

Explanation:

Hello there!

In this case, since electrolytes are substances characterized by presence of covalent bonds between the atoms forming the compound, it is possible to realize that just KCl and Ba(OH)₂ as they are species composed by cations (K and Ba) and anions (OH and Cl); therefore, they have the capacity to get ionized in aqueous solution and thus transfer electricity when present.

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The solution containing electrolytes is the flask of KCI and \(Ba(OH)_2\).

The correct options are a and c.

An electrolyte is a medium that contains ions and conducts electricity through the movement of ions, but not electrons.

They are minerals present in the body, that are electrically charged.

Electrolytes help in maintaining the water balance in the body, and pH of the body.

The three primary electrolytes are sodium, potassium, and chloride.

Thus, the correct options are a, KCI, and b, \(Ba(OH)_2\).

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The field of chemistry that explains why bromine trifluoride reacts differently than water vapor during a reaction is called chemical kinetics.

What is Energy?

Energy is a fundamental concept in physics, often defined as the ability to do work. It can take many different forms, including thermal energy, kinetic energy, potential energy, electromagnetic radiation, and chemical energy, among others. Energy can be transferred from one system to another, and it can also be converted from one form to another. The SI unit of energy is the joule (J), although other units such as the calorie and the electronvolt are also used in specific contexts.

The field of chemistry that explains why bromine trifluoride reacts differently than water vapor during a reaction is called reaction kinetics. Reaction kinetics is the study of how fast chemical reactions occur and what factors affect the reaction rate. It takes into account factors such as the nature of the reactants, concentration, temperature, surface area, and the presence of a catalyst or inhibitor.

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Answer:

In order to determine the oil content of different types of potato crisps (chips), a student weighed 5.00 g of crushed crisps and mixed them with 20.0 cm3 of non-polar solvent. She assumed all the oil in the crisps dissolved in the solvent. The student then filtered the mixture to remove any solids, and gently heated the solution ...

Explanation:

Student needed a non polar solvent to determine the content of oil due to non polar nature of oil.

Those solvents in which within the molecule positive and negative ends are not present will describe as a non polar solvents.

Molecules will dissolve in same kind of solvent by the concept of like dissolves like, means polar molecules dissolve in polar solvents and non polar molecules will dissolve in non polar molecules. Oil is a non polar molecule thats why in the experiment to determin the oil content or to dissolve oil of crisps in the solvent he had used non polar solvent.

Hence due to non polar nature of oil, student used non polar solvent.

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The  complete chemical formula for the unknown compound is N2O3 where X = 2 which is the oxidation state of oxygen.

Oxidation state is the number of electron which the compound is giving or taking from each other to form the bonds as the oxidation is hight oxidation is happening asn if the low then reduction is happening.

In the compound N2O3 the oxidation state of O is 2 and the oxidation stte of N is 3 written in the cross-cross manner in compound.

Therefore, N2O3 where X = 2 which is the oxidation state of oxygen is complete chemical formula for the unknown compound.

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Answer:

d

Explanation:

The best description of the relationship between population size, carrying capacity, and limiting factors is: "The size of a population usually stays near its carrying capacity due to limiting factors."

Carrying capacity refers to the maximum number of individuals that a particular environment can sustainably support. It represents the limit to which a population can grow given the available resources, such as food, water, and habitat. Limiting factors, on the other hand, are the factors that restrict population growth by reducing birth rates, increasing death rates, or limiting access to resources.As a population approaches its carrying capacity, limiting factors come into play and regulate the population size. These limiting factors can include competition for resources, predation, disease, availability of suitable habitat, and other environmental factors. They act as checks on population growth, preventing it from exceeding the carrying capacity of the ecosystem.

Therefore, the size of a population usually stays near its carrying capacity because the limiting factors ensure that the population does not exceed the available resources and ecological limits of the environment. If the population surpasses the carrying capacity, the limiting factors will intensify, causing a decline in resources and an increase in mortality rates, which ultimately brings the population back towards the carrying capacity.It's important to note that the relationship between population size, carrying capacity, and limiting factors is dynamic and can vary depending on various ecological and environmental factors.

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You're going to divide the mass of chlorine within the compound by the mass of the compound, and then multiply the result by 100 to get the answer

Answer:

30 neutrons

Explanation:

Answer:

A

Explanation: The rubber around the wire is an insulator, and the wire i would imagine would be made out of something like copper.  Electricity runs through everything and without the insulator there, you'd be touching metal that electricity is running through.

The limiting reactant is NH3

The limiting reagent is the reactant that is completely used up in a reaction and thus determines when the reaction stops. From the reaction stoichiometry, the exact amount of reactant needed to react with another element can be calculated.

2NH3 + MgSO4 + 2H20-→ Mg(OH)2 + (NH4)2SO4

For limiting reagent:-

 MgSO4= moles / stoichiometry coefficient

                ⇒ 4.6/1

NH3 =  moles / stoichiometry coefficient

           ⇒ 5.4/2

             ⇒ 2.7

HENCE, the limiting reagent is - NH3.

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When 7.524 is rounded to 3 significant figures, it will be 7.52.

The process of changing a number to a nearby number with fewer significant digits is known as rounding.

Rounding can be done to the nearest integer, the nearest tenth, the nearest hundredth, and so on.

Here are some pointers on rounding numbers to a certain number of significant digits:If the digit following the last significant digit is less than 5, simply drop it and all following digits.

(round down)For example, 2.832 rounded to two significant digits is 2.8 since the 3 is followed by a 2 which is less than 5.

If the digit following the last significant digit is greater than 5, add 1 to the last significant digit, then drop all of the digits that follow it.

(round up)For example, 4.673 rounded to two significant digits is 4.7 since the 3 is followed by a 7 which is greater than 5.

If the digit following the last significant digit is exactly 5, the preceding digit is odd, and no other digits follow, increase the last significant digit by 1.

If the digit following the last significant digit is exactly 5, the preceding digit is even, and no other digits follow, simply leave the last significant digit alone.

For example, 2.875 rounded to two significant digits is 2.9 since the 5 is followed by an odd number, which means that the 8 should be rounded up, while 2.765 rounded to two significant digits is 2.8 since the 5 is followed by an even number, which means that the 6 should be left alone.

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Answer:

58.44 g of NaCl are needed.

Explanation:

Given data:

Mass of NaCl needed = ?

Volume of solution = 200 mL (200/1000 =0.2 L)

Molarity of solution = 5 M

Solution:

We will solve this problem through molarity formula.

Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.

Formula:

Molarity = number of moles of solute / L of solution

Now we will put the values.

5 M = moles of solute / 0.2 L

Moles of solute = 5 mol/L × 0.2 L

Moles of solute = 1 mol

Mass of sodium chloride:

Mass = number of moles × molar mass

Mass = 1 mol × 58.44 g/mol

Mass = 58.44 g

Thus, 58.44 g of NaCl needed.

The concentration of the H2SO4 solution is 0.080 M.

The concentration of 50.0 ml of a solution of H2SO4 can be found by titrating the acid with a standardized solution of Ba(OH)2. This can be achieved by first preparing a 0.20M solution of Ba(OH)2 by dissolving a known mass of the reagent in distilled water and diluting to the mark. The end point is reached when all the H2SO4 has reacted with Ba(OH)2 and no more acid is left to react with the reagent.When 40.0 ml of 0.20M Ba(OH)2 titrant was added, we can calculate the amount of moles of Ba(OH)2 that reacted with the H2SO4 and use this value to find the concentration of H2SO4. To do this, we can use the following balanced equation:H2SO4 + 2Ba(OH)2 → BaSO4 + 2H2OFrom the balanced equation, we can see that one mole of H2SO4 reacts with two moles of Ba(OH)2. Thus, the number of moles of Ba(OH)2 used in the titration is given by:(40.0/1000) L × (0.20 mol/L) = 0.008 molWe can use the number of moles of Ba(OH)2 used to calculate the number of moles of H2SO4 present in the original solution. Since one mole of H2SO4 reacts with two moles of Ba(OH)2, the number of moles of H2SO4 in the solution is given by:0.008 mol Ba(OH)2 × (1 mol H2SO4 / 2 mol Ba(OH)2) = 0.004 mol H2SO4.The concentration of H2SO4 is then given by dividing the number of moles of H2SO4 by the volume of the solution in liters:0.004 mol / (50.0/1000) L = 0.080 M.

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The block’s average speed : 0.36 m/s

Distance is the length traveled by an object within a certain of time .  

Average speed = total distance/total amount of time ,

Can be formulated :

\(\tt avg.s(speed)=\dfrac{\Delta D}{\Delta t}\)

ΔD= total distance

Δt= total time

A block is pulled 0.90 m to the right in 2.5 s :

ΔD= total distance = 0.9 m

Δt= total time = 2.5 s

The block’s average speed :

\(\tt avg.s=\dfrac{0.9}{2.5}=0.36~m/s\)

Problem 1:

we need 80 g of the 15% solution and 120 g of the 20% solution.

Let x be the mass of the 15% solution needed and y be the mass of the 20% solution needed.

x + y = 200 (total mass of the two solutions)

0.15x + 0.2y = 0.17(200) (total amount of solute in the two solutions)

Solving these equations,  x = 80 g and y = 120 g.

Therefore, we need 80 g of the 15% solution and 120 g of the 20% solution.

Problem 2:

we need 120 g of the 18% solution and 180 g of the 5% solution.

Let x be the mass of the 18% solution needed and y be the mass of the 5% solution needed.

x + y = 300

0.18x + 0.05y = 0.07(300)

Solving these equations, x = 120 g and y = 180 g.

Therefore, we need 120 g of the 18% solution and 180 g of the 5% solution.

Problem 3:

The mass percentage of the final solution is 135 g/550 g × 100% = 24.55%.

The total mass of the final solution is 200 g + 350 g = 550 g.

The total amount of solute in the final solution is:

0.15(200 g) + 0.20(350 g) = 65 g + 70 g = 135 g.

Therefore, the mass percentage of the final solution is 135 g/550 g × 100% = 24.55%.

Problem 4:

The mass percentage of the final solution is 110 g/335 g × 100% = 32.84%.

The total mass of the final solution is 300 g + 35 g = 335 g.

The total amount of solute in the final solution is:

0.15(300 g) + 35 g = 75 g + 35 g = 110 g.

Therefore, the mass percentage of the final solution is 110 g/335 g × 100% = 32.84%.

Problem 5:

The mass percentage of the final solution is 18.18%.

Calculate the final mass of the solution:

Final mass = 400 g + 150 g = 550 g

Calculate the mass of solute in the 25% solution:

Mass of solute = 0.25 x 400 g = 100 g

Calculate the mass percentage of the final solution:

Mass percentage = (mass of solute ÷ final mass) x 100%

Mass percentage = (100 g ÷ 550 g) x 100%

Mass percentage = 18.18%

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Answer:

Fe3(PO4)2

Explanation:

calculate the molar mass for each of the following compounds 7. PbSO

8. Ca(OH)2

9. Na3PO4

10. (NH4)2CO3

11. C6H12O6

12. Fe3(PO4)2

13. (NH4)2S

14. Zn(C2H3O2)2

Answer: Oxygen

Explanation: Its found on the periodic table as an element.

Answer:

A

an element made of carbon and oxygen atoms.

So I think the answer is going to be A An element made of carbon and oxygen atoms.

Answer:

Answer:

The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups.

Each row represents one period; the period number of an element indicates how many of its energy levels house electrons. Sodium, for instance, sits in the third period, which means a sodium atom typically has electrons in the first three energy levels.

Explanation:

Answer

.

Explanation

Given:

Mass of Mg = 10.800 g

Molar mass of Magnesium phosphate = 262.86 g/mol

Required: Mass of Magnesium phosphate.

Solution:

Step 1: Calculate the number of moles of magnesium

n = m/M where n is the moles, m is the mass and M is the molar mass

n = 10.800g/24.305g/mol

n = 0.444 mol

Step 2: Use the stoichiometry to calculate the moles of Mg3(PO4)2

The molar ratio between Mg and M3(PO4)2 is 3:1

Therefore the number of moles of Mg3(PO4)2 = 0.444 mol x (1/3) = 0.148 mol

Step 3: Use the moles to calculate the mass of Mg3(PO4)2

m = n x M

m = 0.148 mol x 262.86 g/mol

m =

Answer: \(\Delta G_{rxn}=130.19J\)

Explanation:

The balanced chemical reaction is,

\(CaCO_3(s)\rightarrow CaO(s)+CO_2(g)\)

The expression for Gibbs free energy change is,

\(\Delta G_{rxn}=\sum [n\times \Delta G_(product)]-\sum [n\times \Delta G_(reactant)]\)

\(\Delta G_{rxn}=[(n_{CO_2}\times \Delta G_{CO_2})+(n_{CaO}\times \Delta G_{CaO})]-[(n_{CaCO_3}\times \Delta G_{CaCO_3})]\)

where,

n = number of moles

Now put all the given values in this expression, we get

\(\Delta G_{rxn}=[(1\times -394.4)+(1\times -604.17)]-[(1\times -1128.76)]\)

\(\Delta G_{rxn}=130.19J\)

Therefore, the gibbs free energy for this reaction is, +130.19 kJ

Answer: 130 kJ

Explanation:

Answer:

Ionic bond

Explanation:

The main component of quicklime is calcium oxide, whose chemical formula is CaO.

Ca is a metal with 2 electrons in its valence shell.

O is a nonmetal with 6 electrons in its valence shell.

Ca and O form a ionic bond, in which Ca loses 2 electrons and O wins 2 electrons, so that both obey the octet rule.

The Earth's surface can also emit radiation back into the atmosphere, which can be absorbed by greenhouse gases such as carbon dioxide and water vapor, leading to the warming of the Earth's atmosphere through the greenhouse effect.

What is Raidiation?

Radiation is the transfer of energy through electromagnetic waves or particles. This transfer of energy can occur through space or through a material medium. Electromagnetic radiation includes a range of wavelengths, from very short gamma rays and X-rays to longer ultraviolet, visible, and infrared light, as well as radio waves.

An example of heat transfer through radiation in Earth's systems is the process of radiative heat transfer from the Sun to the Earth's surface. The Sun emits energy in the form of electromagnetic radiation, which travels through space and is absorbed by the Earth's atmosphere and surface. This absorbed energy is then re-emitted as heat through radiation, warming the Earth's surface and creating the temperature gradient that drives many of the planet's atmospheric and oceanic circulation patterns.

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The element would you get is Mg. 6C12 +   6C12 1  11Na24 + +1e0.

The first step in making carbon is to fuse the nuclei of hydrogen the lightest element to make helium the second lightest element. The next step is to fuse the two helium 4 nuclei. Each contains two protons and two neutrons. Forms beryllium-8. This takes in another helium and produces carbon-12.

The main problem in the carbon cycle is proton addition but after a carbon-12 nucleus fuses with a proton to form nitrogen-13 one of the protons decays to carbon-13 emitting a positron and a neutrino. Two more proton captures produce nitrogen-14 and then oxygen-15. Stellar Fusion Reactors In massive stars hydrogen burns to form helium. This produces carbon which can be further processed into oxygen and heavier elements.

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The significance of the point where the pressure drops to zero is that at that point the gases would completely show ideal behavior.

The gas laws can be used to describe the behavior of the ideal gases. It is pertinent to note that the ideal gas law can strictly be applied to gases that are at a high temperature and low pressure.

We can be able to find the  temperature when the pressure is equal to zero either be the use of the equation line or by experiment. In that case, we would be able to obtain the point at which the pressure drops to zero.

The significance of the point where the pressure drops to zero is that at that point the gases would completely show ideal behavior.

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The compound would have a molecular formula of C5H10O2.

The empirical formulas is the simplest formula of a compound.

We know that;

Mass  of the carbon = 14.03 * 12/44 = 3.82 g

Moles of C = 3.82 g/12 g/mol = 0.32 moles

Mass of water = 3.83 * 2/18 = 0.43 g

Moles of H =  0.43 g/1 g/mol =  0.43  moles

Mass of oxygen = 8.5 - (3.82 + 0.43)

= 4.25 g

Moles of oxygen = 4.25 g/16 g/mol = 0.27 moles

We can now divide through by the lowest ratio;

C - 0.32    H - 0.43    O - 0.27

C - 1   H - 2  O - 1

The empirical formula is CH2O

The molecular formula is;

[12 + 2+ 16]n = 160

n = 160/30

n = 5

The molecular formula is;

C5H10O2

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Answer:

0.146 M

Explanation:

Use v1s1 = v2s2

here, v1 = 500 mL, v2 = 700 mL, s1 = 0.205 M & s2 = new concentration

Answer:

It's True.

Explanation:

Matter is anything that has mass and takes up space. Mass gives an object the property of weight and inertia (resistance to change in the motion of an object). There are four states of matter, solid, liquid, gas, and plasma.