Give the name of each ion.
S2-

N3-

Answers

Answer 1

Answer:

The answer is Sulphur and Nitrogen ion


Related Questions

Which of the following pairs of elements are most likely to form an ionic bond?


A- Br and Ca

B- Br and N

C- Ca and Mg

D- Ca and Fe

Answers

Answer:

Ionic bonds ussally form with a metal, and a non metel elements, so the answer would most likley be B.

Explanation:

hope I could help

john has a solution with a pH of 12.21. what is the hydrogen ion concentration of this solution? ​

Answers

Answer:

In this way, ph is determined by hydrogen ion concentration . In the case of neutral solution [H+] =10-7 which we call a ph of 7. This means, for example, that a hydrogen-ion concentration of a solution with a ph of 4 is 10-4 mol/l, meaning it contains 0.0001 mole of hydrogen ion in a solution of 1 liter.

100.0 mL of a 0.500 M solution of KBr is diluted to 500.0 mL. What is the new concentration of the solution

Answers

Answer:

0.1 M

Explanation:

The following data were obtained from the question:

Initial volume (V1) = 100 mL

Initial concentration (C1) = 0.5 M

Final volume (V2) = 500 mL

Final concentration (C2) =?

Using the dilution formula C1V1 = C2V2, the new concentration of the solution can be obtained as follow:

C1V1 = C2V2

0.5 × 100 = C2 × 500

50 = C2 × 500

Divide both side by 500

C2 = 50/500

C2 = 0.1 M

Therefore, the new concentration of the solution is 0.1 M

The new concentration of the solution of KBr that was diluted to 500mL is 0.1M

HOW TO CALCULATE CONCENTRATION:

The concentration of solution that was diluted can be calculated using the formula as follows:

C1V1 = C2V2

Where:

C1 = original concentration (M)C2 = diluted concentration (M)V1 = original volume (mL)V2 = diluted volume (mL)

According to this question, 100.0 mL of a 0.500 M solution of KBr is diluted to 500.0 mL. The new concentration can be calculated as follows:

0.500 × 100 = C2 × 500

50 = 500C2

C2 = 50 ÷ 500

C2 = 0.1M

Therefore, the new concentration of the solution of KBr that was diluted to 500mL is 0.1M.

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An element is an arrangement of atoms in a particular way; True or False?

Answers

Answer:

i think it's true because An element is a substance that is made entirely from one type of atom

How many cm are in 29.7km?​

Answers

Answer:

there are 2970000cm in 29.7km

Explanation:

BRAINLIEST PLEASE HELP WITH THIS CHEMISTRY QUESTION!!
Which of the following describes how further studies supported the work done by Ernest Rutherford?

Answers

Answer: James Chadwick discovered neutral particles in the nucleus. So your answer is C

Explanation:

I just took a pretest and I had this same question and I got it right

Answer:

James Chadwick discovered neutral particles in the nucleus.

Help me please, i’d appreciate it a lot! thank you!❤️

Answers

Explanation:

think so it is useful and sufficient for your question

What are the components of the water-based carbon cycle?

Answers

Answer:

Carbon gets incorporated into marine organisms as organic matter or structural calcium carbonate.

Explanation:

ur welcome

Carbon gets incorporated into marine organisms as organic matter or structural calcium carbonate.

What is the carbon cycle?

The carbon cycle describes how carbon moves between the atmosphere, soils, living creatures, the ocean, and human sources.

Carbon gets incorporated into marine organisms as organic matter or structural calcium carbonate. When organisms die, their dead cells, shells and other parts sink into deep water. Decay releases carbon dioxide into this deep water.

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What will be the cost of gasoline for a 4,700-mile automobile trip if the car gets 41 miles per gallon, and the average price of gas is $3.79 per gallon?

Answers

Answer:

Idk

Explanation:

Find the gallons needed by dividing total miles by miles per gallon:

4700/41 = 114.634 gallons

Multiply the gallons needed by price per gallon:

114.634 x 2.79 = $319.83 Total

Round the answer as needed.

If gallons were rounded to 115 gallons total cost would be $320.85

Answer:

$ 434.40

Explanation:

41 miles ............ 1 gallon

4700 miles .......x gallon

x = 4700×1/41 = 114.63 gallons

114.63 gallons×$3.79 ≈  $ 434.40

What are the similarities and differences between a crystal of molecules and a polymer?

Answers

Ok so both are cases where molecules pack together in an orderly fashion. In crystals, molecules pack together in any direction. The molecules are not chemically bonded together. In polymers, long chains of the same molecule are chemically bonded together.

The similarities between crystal of molecules and polymers are;

Both are are composed of regular repeating units of moleculesBoth can be arranged in a definite pattern to give a solid material

Differences between a crystal of molecules and a polymer are;

Polymers result from long chains of molecules while crystal of molecules results from the aggregation of a fewer number of molecules.molecules polymers are held together by chemical bonds while molecules in crystal of molecules are held together by weak inter-molecular forces.

Many molecules occurs as crystals. These crystals of molecules have a well defined shape and are composed of a regular repeating unit of molecules not held together by chemical bonds.

Polymers are formed from small molecules called monomers which are arranged in a regular repeating manner to form macro-molecular structures which sometimes have a high tensile strength.

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Solute and solvent in pasta

Answers

Answer:

It depends on what kind of pasta it is

Give two real life applications of chromatography

Answers

Answer:

Food testing.

Beverage testing.

Drug testing.

Forensic testing.

Answer:

1. Additive detection

2. Crime scene testing

Give two examples of rocks composed of only one material.

Answers

Answer:

pyroxenite, quartzite, dunite (over 90% olivine), anorthosite (over 90% plagioclase feldspar), marble, chalk, gypsum

Explanation:

is there any compound like O2C NO2​

Answers

Answer:

Aye Wassup? Adam Here :D

Explanation:

Nitrogen dioxide is a chemical compound with the formula NO 2.It is one of several nitrogen oxides. NO 2 is an intermediate in the industrial synthesis of nitric acid, millions of tons of which are produced each year for use primarily in the production of fertilizers.At higher temperatures it is a reddish-brown gas.

Hope This Helped Bro: "AdamDaAssasin"

Why are alkalis sometimes
described as the opposite of
acids?

Answers

Answer: Because Alkalis are bases that can dissolve in water, which can also neutralize acid.



Which option gives an object's volume in SF units?

O

A. 4.3 kg

B. 2.6 m3

C. 5.5 K

D, 3.4L

SUBMIT

Answers

Answer:

The correct answer is:

2.6 m3 (B)

Explanation:

SF unit stands for Stowage factor unit. Stowage factor is the volume occupied by one unit of mass (weight) when stowed in cargo space. SF expresses the unit in cubic meters (m³) or cubic feet. SF is a unit of measurement that indicates how much space (volume) a particular unit of cargo occupies  in a ship's cargo compartment

. A certain medication is set to deliver through an IV at a rate of 3.0 mg/min. What is this rate in mg/s?

Answers

Answer:

[tex]rate=0.05\frac{mg}{min}[/tex]

Explanation:

Hello,

In this case, considering that 1 min equals 60 seconds, we need to perform the unit conversion as shown below in order to compute the rate on mg/s:

[tex]rate=3.0\frac{mg}{min}*\frac{1min}{60s} \\ \\rate=0.05\frac{mg}{min}[/tex]

Best regards.

The value of ΔG°′ΔG°′ for the conversion of glucose-6-phosphate to fructose-6-phosphate (F6P) is +1.67 kJ/mol+1.67 kJ/mol . If the concentration of glucose-6-phosphate at equilibrium is 2.95 mM2.95 mM , what is the concentration of fructose-6-phosphate? Assume a temperature of 25.0°C25.0°C .

Answers

Answer:

The concentration of fructose-6-phosphate is 1.50x10⁻³M

Explanation:

Gibbs Free energy, ΔG°, is defined as:

ΔG° = -RTln K

Where ΔG° = 1670J/mol

R is gas constant = 8.314J/molK

T is absolute temperature (25°C + 273.15 = 298.15K)

Thus, equilibrium constant, k, is:

1670J/mol = -8.314J/molK* 298.15K ln K

-0.6737 = ln K

0.5098 = K

K of the reaction:

G6P ⇄ F6P

is:

K = 0.5098 = [F6P] / [G6P]

As [G6P] is 2.95x10⁻³M:

0.5098 = [F6P] / [2.95x10⁻³M]

[F6P] = 1.50x10⁻³M

The concentration of fructose-6-phosphate is 1.50x10⁻³M

In an atom of an element there are a fixed number of electrons. If the total mass of electrons in 1 mole (6.022 x 1023) of atoms of a certain element is 18.65 mg, how many protons must there be in the nucleus of that atom? (mass of electron = 9.109 x 10–28 g).

Answers

Answer:

No. of protons = 34

Explanation:

First we need to calculate the number of electrons in one mole of the the element:

No. of electrons per mole = Total Mass of Electrons/Mass of 1 Electron

No. of electrons per mole = (18.65 x 10⁻³ g)/(9.109 x 10⁻²⁸ g)

No. of electrons per mole = 2.04 x 10²⁵ electrons/mol

Now, we calculate the no. of electrons in 1 atom:

No. of electrons per atom = No. of Electrons per mole/No. of atoms per mole

No. of electrons per atom = (2.04 x 10²⁵ electrons/mol)/(6.022 x 10²³ atoms/mol)

No. of electrons per atom = 34 electrons/atom

Since, the no. of protons in a pure element are equal to the number of electrons. Therefore,

No. of protons = 34

In this exercise we have to use the knowledge of atoms to calculate the number of protons, in this way we find:

Protons will be  34

First we need to reckon the number of electrons fashionable individual blemish of the the place where one feels comfortable:

[tex]electrons \ per \ mole = Total\ Mass\ of \ Electrons/Mass\ of\ 1 \ Electron\\ electrons\ per\ mole = (18.65 * 10^{-3} g)/(9.109 * 10^{28} g)\\ electrons \ per \ mole = 2.04 x 10^{25} electrons/mol[/tex]

Now, we plan on the electrons in 1 smallest part of something:

[tex]electrons\ per\ atom = Electrons\ per\ mole/atoms\ per\ mole\\ electrons\ per\ atom = (2.04 * 10^{25} electrons/mol)/(6.022 * 10^{23} atoms/mol)\\ electrons\ per\ atom = 34 electrons/atom [/tex]

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Determine whether each pair of compounds forms a homogeneous solution when combined. For those that form homogeneous solutions, indicate the type of forces that are involved.

Answers

Answer:

Explanation:

1st)  one are homogenous because the have the same kind of force 9 London force ) all the hydrocarbons are nonpolar and have a London force between their molecules

 so pentane dissolve in hexane (like dissolves like )

2nd )  CBr4  has a tetrahedral shape its a nonpolar compound (London bond )

           but  the water is polar molecules  has a  ( hydrogen bond ) its  molecular shape (bent shape)  . Both do not dissolve in each other because they have a different kinds of bond so they are  not a homogenous solution .

3rd) its a homogenous because the water can dissolve the ionic bonds between the Li (  cation ) and  (NO3 -1  anion ).

4th ) here we can say alcohol can dissolve in a little amount why ?

    pentane has a London force bond Alcohol has two different parts  first  part  has OH making hydrogen bond which cant dissolve in the pentane different kinds of bonds ,and the other part -CH3 has a London force bond that can dissolves easily in the pentaneso  one part dissolves but  the other part  can't dissolve so the two compound are slightly dissolves in each other  that which mean its not a homogenous solution

What is the freezing point of an aqueous 1.00 m NaCl solution? (Kf = 1.86 *C/m) (Assume complete dissociation of the salt.)

Answers

Answer:

The freezing point is -3.72 degrees Celsius

Explanation:

In this question, by assuming the complete dissociation of the salt, we want to calculate the freezing point of an aqueous 1 M NaCl solution .

We proceed as follows;

Firstly, we write the dissociation equation;

NaCl ——> Na+ + Cl-

So the number of ions present in the dissociation is 2. This means that the Vant Hogg factor also called I = 2

Mathematically;

ΔTf = Kf*m*i

m represents the molality which is given as 1

So by substituting the values, we have;

ΔTf = 1.86 * 1 * 2 = 3.72 degrees Celcius

The freezing point however is 0 - ΔTf = 0 - 3.72 = -3.72 degrees Celcius

Which of the following is characteristic of grasslands, but not savannas? a. wide temperature range b. two seasons c. droughts and fires d. wet and dry seasons

Answers

Answer:

wide temperature range

Explanation:

Grasslands are ecosystem that covers grass and herbs. It can occur in any type of climates. The rainfall is low in grasslands but it is periodic. The temperature in the summer can exceed 100 degrees Fahrenheit in grasslands.

Savannas is a type of grasslands. It is also known as tropical grasslands. They have average annual temperatures that only vary between 70 and 78 degrees Fahrenheit.

It can be concluded that, out of the given options, that shows the characteristic of grasslands, but not savannas is option (a) " wide temperature range".

Answer: A. wide temperature range

Explanation: Got it correct on the Edgenuity 2020 quiz :)

Was the french revolution driving force behind the metric system?

Answers

Answer:

yes, they were

Explanation:

The history of the metric system began in the Age of Enlightenment with notions of length and weighttaken from natural ones, and decimal multiples and fractions of them. The system became the standard of France and Europe in half a century. Other dimensions with unity ratios[Note 1] were added, and it went on to be adopted by the world.

If the chemical reaction AB + CD ⟶ AD + BC releases heat, what is true of the stored bond energy of the reactants and products? The bonds do not have energy, the atoms release heat. The bond energy of the reactants is the same as the bond energy of the products. The bond energy of the reactants is lower than the bond energy of the products. The bond energy of the reactants is higher than the bond energy of the products.

Answers

Answer:

The correct option is the last option

Explanation:

The chemical reaction provided in the question is a double-displacement reaction which is an exothermic reaction (which is the reason for the release of heat). An example of a double displacement reaction and exothermic reaction is the neutralization reaction illustrated below.

HCl + NaOH ⇒ NaCl + H₂O

From the law of conservation of energy, energy can neither be created nor destroyed, hence the total energy in a given system should ordinarily be the same (in the reactants and products), however when energy is released in a reaction (as in the case with an exothermic reaction), it shows there are more bond energy in the reactants than in the products and it is the excess energy that is been released into the atmosphere.

What ions are present in an aqueous solution of NiCl2?

Answers

Answer:

Ni²⁺ and Cl⁻ ions

Explanation:

NiCl₂ is an ionic compound which is composed by 2 chloride ions (Cl⁻) and 1 nickel (II) ion (Ni²⁺). It dissociates in water as follows:

NiCl₂ ⇒ Ni²⁺ + 2 Cl⁻

Therefore, in an aqueous solution of NiCl₂ will be present Ni²⁺ ions and Cl⁻ ions.

which argument best explains the charge of an atomic nucleus

Answers

Answer:

An atomic nucleus is positively charged because it is composed of protons.

Explanation:

hope this helps you:)

Answer:

An atomic nucleus is positively charged because it is composed of protons.

Explanation: Just took test on edgenuity

A change in the number of neutrons in an atom will change an isotope. What will happen when the number of protons changes in an atom?

Answers

Adding or removing protons from the nucleus changes the charge of the nucleus and changes the atoms atomic number

Uranium is a type of atom. In special circumstances that usually involve high amounts of energy, uranium can be broken. When this occurs, different pieces of the original atom remain, including a substance called plutonium. Which statement most likely describes plutonium? It will still be uranium, just smaller pieces of uranium. It must no longer be a form of matter. It must be a different kind of atom. It will be different than, but have the same properties as, uranium.

Answers

Answer:

It's c

Explanation:

I'm taking the test now on edge.

It must be a different kind of atom statement mostly likely describes plutonium. Hence option C is correct.

What are atoms?

It is the smallest unit of matter that possess the properties of the chemical element. It can’t be an independently, they form ions and molecules they both are combine and form large numbers of matters.

Atoms are basically three types: Neutrons, protons and electrons.

In periodic table plutonium is above uranium. Plutonium is more powerful as compared to uranium because it is an isotope and more radioactive.

Almost all of naturally occurring. Uranium 92U238with a half-life of 4.468 x 109 year. Most rest of the natural uranium is92U235.

Uranium is generally used in the process of nuclear fission whereas plutonium is used for the production of nuclear weapons.

It must be a different kind of atom statement mostly likely describes plutonium. Hence option C is correct.

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Question 1 (Multiple Choice Worth 2 points)
(01.01 LC)
The strength of gravitational force is affected by the distance between objects and which of the following?
O Weight
O Speed
O Density
O Mass

Answers

Answer: the answers is mass

Which wave has the greatest distance from trough to trough?

Answers

Answer:

C.C

Explanation:

Just took the test

A transverse wave is a motion in which all points on a wave oscillate along paths at right angles. Hence, option C is correct.

On a wave, what is the distance from trough to trough?

The wavelength is the horizontal distance between two adjacent crests or troughs.

The longest distance a particle goes from rest is to the peak of a crest or the bottom of a trough in a transverse wave. The amplitude of a transverse wave is this distance.

Hence, option C is correct.

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Read the following excerpt from Federalist #3 by John Jay. The number of wars which have happened or will happen in the world will always be found to be in proportion to the number and weight of the causes, whether REAL or PRETENDED, which PROVOKE or INVITE them. If this remark be just, it becomes useful to inquire whether so many JUST causes of war are likely to be given by UNITED AMERICA as by DISUNITED America; for if it should turn out that United America will probably give the fewest, then it will follow that in this respect the Union tends most to preserve the people in a state of peace with other nations. Which of the following best explains John Jays position on maintaining a state of peace with other nations? Convert 8 to Base 2 which algebraic rule will produce a translation that is 5units to the right? how chlamydia effects young women plzzzzz helppppp find how many centimeters are in 4.5 inches, you should 2.54 by 4.5 multiply? divide?4.5 inches = centimeters Which is the correct option here? Which statements are examples of logos? Select two options.The number of individuals who experience identity theft is up 25 percent from the previous year.It is cruel and inhumane to make people work in buildings with no air conditioners during the summer.It is our duty and responsibility to make sure that we leave the world a better place for future generations.As a neurologist, I advise people to consider taking 30-minute breaks every hour to help with work fatigue.In a new poll, it was determined that 34 percent of people on the West Coast do not watch any type of sport.hi Chin researched the body weight, in pounds, of professional football players. He created a table of different sample means from his data. Sample Sample Mean (pounds) 1 240 2 236 3 245 4 243 5 238 6 242 Which statements are true? Select three choices. The variation in the sample means makes it possible to make predictions about the population mean. The actual population mean is greater than 236. The actual population mean is less than 245. The actual population mean is greater than 245. The population mean is the average of the sample means. A car runs around a circular race track from the point A to diametrically opposite point B The radius of the circle is r . The distance traveled by the car is ________ the displacement of the car is _________ show your work! I need to know this I dont understand and it is last one Which of the following is an assumption of the theory of monopoly? a. there are extremely high barriers to entry b. there are many sellers c. the product has a number of close substitutes d. the product is of extremely high quality Hummingbirds can hover in midair by flapping their wings 15-80 times per second depending on the species. Which organelle would you find an abundance of in the muscles of their wings? Which of the following was NOT one of the reasons that France supported the United States during the Revolutionary War? A) France was concerned about the growing power of Great Britain. B) France desired a profitable trade relationship between the two nations. C) France was interested in establishing an independent French state in the American West. D) France was unhappy about the territory it lost to Great Britain during the French and Indian War. Why are problem-solving strategies important? Choose all that apply. ensures important factors are taken into consideration ensures everyone involved in the solution understands the steps that are being taken makes it possible to find all solutions makes it possible to repeat the process to refine the solution DONE A 20 N net force acts on an object with a mass of 2.0 kg. What is the object's acceleration? (PLS HELP lol) In June 2012, Twitter was reporting 400 million tweets per day. Each tweet can consist of up to 140 characters (letter, numbers, etc.). Create a comparison to help understand the amount of tweets in a year by imagining each character was a drop of water and comparing to filling something up Find the dimensions of a rectangle whose width is 8 miles less than its length and whose area is 105 square miles y varies directly with x Part 119. If y = 4 when x = -2, find x when y = 620. If y = 6 when x = 2, find x when y = 1221. If y = 7 when x = 2, find x when y =3 Shirley's time sitting at her desk was interrupted when the human resources manager burst into her office with a particularly vexing problem - customer service ratings had been falling over the last quarter. The human resources manager explained that they were behind on training programs for their workers. Shirley assembled a task force consisting of the brightest minds in the organization and gave them a charge - to look at the previous quarter's issues and to develop training courses over the next 48 months to solve those issues. What roadblock is Shirley confronted with while trying to identify the true problem show that (x+1)(x+3)(x+5) can be written in the form ax^3 + bx^2 + cx+ d where a,b,c and d are all positive integers.