Arrange Zn, Br, Fe, K, Na in order of increasing size

please help ASAP !!

Answers

Answer 1

Answer:

Na, K, Fe, Zn, Br,

Explanation:

look at periodic table. size increases left to right and from top to bottom.


Related Questions

2. Does the aluminum sample (the can) contain more than, (less than or exactly one mole of aluminum? Support answer with calculation.

Answers

Answer:

than, (less than or exactly one mole

how many grams of baf2 are in 3.7 moles of baf2​

Answers

To convert moles to gram multiply 3.7 moles of BaF2 to the molar mass of BaF2

BaF2 molar mass = 175.326

3.7 moles x 175.326g = 648.70g BaF2

Bubbles started appearing in a pot of water kept on the stove. This shows the process of
(1 Point)
A. evaporation
B. condensation
O C. freezing
O C. boiling

Answers

C. boiling

when water starts boiling you will se bubbles appearing

The mass of an object is 240g and its volume is 60 cm3
will it sink or float

Answers

Answer:

Float

Explanation:

Becuase 240 g had more volume then the 60 cm3 which is lighter that the mass of 240 grams

Which statement best describes one rule for determining the relative age of a rock layers

Answers

How do Geologists determine the relative age of rocks? A rock's age as its age is compared to the age of other rocks. According to what law, horizontal sedimentary rock layers the oldest layer is at the bottom. Each higher layer is younger than the layers below it

A mercury lamp emits radiation with a wavelength of 4. 36x 105 cm. A. What is this wavelength in meters?

Answers

The answer is 4.578 meters

When any reversible reaction is at equilibrium, what conditions are necessarily true?.

Answers

Answer:

Reversible reactions that happen in a closed system eventually reach equilibrium. At equilibrium, the concentrations of reactants and products do not change. But the forward and reverse reactions have not stopped - they are still going on, and at the same rate as each other.

When any reversible reaction is at equilibrium, the conditions are necessarily true are the amount of reactant and products stops changing, and the rate of forward reaction equals rate of backward reaction. The correct options are B and D.

What is a reversible reaction?

A reversible reaction occurs when the conversion of reactants to products and the conversion of products to reactants occur at the same time.

A and B can react to form C and D, or C and D can react to form A and B in the reverse reaction. In thermodynamics, this is not the same as a reversible process.

In a closed system, reversible reactions eventually reach equilibrium. The concentrations of both reactants and products remain constant at equilibrium.

But the forward and reverse reactions have not stopped; they are still occurring at the same rate.

Reversible reactions continue until equilibrium is reached, which means that the amounts of reactant and product are balanced.

Thus, the correct options are B and D.

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Your question seems incomplete, the missing options are attached below as image:

How does stoichiometry support the law of conservation of mass?


A It compares the mass of the reactants to the number of moles of reactants.

B It compares the mass of each reactant to the mass of each product.

C It compares the mass of the products to the number of atoms in the products.

D It compares the mass of the products to the mass of the reactants. ***

Answers

D) It compares the mass of the products to the mass of the reactants.
The law of conservation of mass states that the amount of mass must remain the same before AND after the chemical reaction. The reactants form the products through chemical reaction meaning that they both must have the same mass.

The stoichiometry supports the law of conservation of mass by comparing the mass of the products to the mass of the reactants.

What is stoichiometry?

Stoichiometry is the measurement of the reactant and product of a reaction.

It is found in the law of conservation of mass, which says that the mass of the reactant is equal to the mass of the product.

Due to stoichiometry, if the mass of the product is known then, the mass of the reactant can be known.

Thus, the correct option is D.

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Write 483,928 in each form.
Word:
Expanded:

Answers

four hundred and eighty three thousand nine hundred twenty eight
Word form: four hundred and eighty three thousand nine hundred twenty eight.
Expanded form: 400,000 + 80,000 + 3,000 + 900 + 20 + 8

A student dissolves 73 g of sodium nitrate, NaNO3, in 100 mL of water and observes a clear, colorless
solution. The student begins to add more sodium nitrate to the solution and it instantly becomes a cloudy,
heterogeneous mixture. The original solution the student prepared is best described as
unsaturated
saturated
immiscible.
supersaturated

Answers

i 90% sure that it would be supersaturated

A student conducts an investigation to determine which magnet is strongest: the horseshoe, the bar, or the ring. The student tests each magnet one time using the same metal object and announces that the bar magnet is strongest. What is wrong with the student's reasoning?

Answers

Answer:

Each magnet should have been tested on many different magnetizable materials

Explanation:

In designing an experiment such as that outlined above, the experimental design should have included many different magnetizable materials.

All the types of magnets; the horseshoe, the bar, and the ring magnet should have been tested using many different magnetizable materials apart from the metal object. By so doing, the strongest magnet can be effectively determined without bias because it will attract the greatest number of magnetizable materials.

Again, the shape of the magnet affects its ability to attract objects. Hence, different shapes of magnets can not effectively be compared for relative magnetic strength.

Explanation:

bold is strong

Can someone please help me? :(

Answers

Answer:

B and D

Explanation:

They collect equal amounts.of solar energy

Answer:

The answer is
C. B and D

Explanation:

The equator is where there is the most solar energy
B and D are symmetrical over the equator.

write the steps for a covalent bond for s2

Answers

Answer:

Sulfur, which only needs two electrons to complete it octet, will pick up the two electrons coming from magnesium, becoming the sulfide anion, S2− , in the process. The electrostatic force of attraction will then bring the magnesium cations and the sulfur anions together → an ionic bond i

Which of the following properties of pure solvents increase when a solute is added?
a. Freezing point
b. Vapor pressure
c. Boiling point
d. Cohesion

Answers

For this question C. Boiling point.
The explanation for this is because the decrease of the vapor pressure of the solvent and it occurs when the solute is added to the solvent that made it increase in the boiling point.

Jackson enjoys looking up at the night sky and writing about the variety of objects he sees. On one special occasion, he wrote in his journal that he saw a streak of light going across part of the sky. Which answer best describes what Jackson saw? * 1 point Meteorite: A cold mixture of dust and ice that develops a long tail as it nears the sun Meteor: A cold mixture of dust and ice that develops a long tail as it nears the sun Meteorite: A streak of light made when an object burns up as it enters Earths's atmosphere Meteor: A streak of light made when an object burns up as it enters Earth's atmosphere

Answers

9514 1404 393

Answer:

  Meteor: A streak of light made when an object burns up as it enters Earth's atmosphere

Explanation:

A meteorite is an object that has come from space and hit Earth.

A comet is a space object that develops a tail as it nears the sun. It is believed to be a mixture of dust and ice. In general, a comet will appear stationary in the night sky, since it moves rather slowly relative the starry background.

A meteor is a space object that makes a streak of light across the sky as it burns up in the atmosphere. (It may or may not become a meteorite, depending on the degree to which it burns up.)

__

UFOs have also been known to make streaks of light when moving across the sky.

Answer:

A streak of light made when an object burns up as it enters Earth's atmosphere

Explanation:

100 % 2021  

Which term is defined as the sum of protons and neutrons in an atom.

Answers

Answer:

Mass number

Explanation:

A standard solution of 112 ppm Yellow 6 dye was prepared. A 25.1 mL aliquot of the stock Yellow 6 dye was diluted to 25 mL in a volumetric flask. What is the concentration (in ppm) of this dilute Yellow 6 dye

Answers

Answer:

multiply, 112 and 25.1 then divide the answer in six

Explanation:

The concentration of of dilute yellow 6 dye is 112.448 ppm.

What is ppm solution?

PPM or parts per million is a term in chemistry used to denote very low concentrations of solution.It is defined  as milligrams of substance present in 1 liter of solution.

It is technically  a dimensionless quantity useful for measuring smaller concentrations present in a solution.This conversion has many scientific applications .

It is how many parts a particular compound or molecule takes up within the one million part of the whole solution. It is used for describing concentrations  of substances which are usually dissolved in a solvent.

For calculating ppm concentration when two solutions one with ppm concentration is known can be found out by:

ppm of solution-1 ×volume=ppm of solution-2×volume

112×251=ppm of solution-2×25

=112.44 ppm

For calculating ppm of solution both the parts of the equation must have same weight or volume.

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At 1 atm, how much energy is required to heat 59.0 g H2O(s) at −22.0 ∘C to H2O(g) at 141.0 ∘C? STRATEGY: Calculate the energy needed for each temperature change or phase change individually. a. The energy needed to heat 59.0 g H2O(s) from −22.0 ∘C to its melting point. b. The energy needed to melt 59.0 g H2O(s) at its melting point. c. The energy needed to heat 59.0 g H2O(l) from the melting point to the boiling point. d. The energy needed to boil 59.0 g H2O(l) at its boiling point. e. The energy needed to heat 59.0 g H2O(g) from the boiling point to 141.0 ∘C. Sum the energies from each step and convert to kilojoules. Step 1. a. Going from −22.0 ∘C to the melting point of H2O (0 ∘C) is a temperature change of 22.0 ∘C. How much energy is needed to heat 59.0 g H2O(s) by 22.0 ∘C if its specific heat is 2.087 J/(g× ∘C)?

Answers

Answer:

The answer is "2736.1 J"

Explanation:

[tex]m= 59.0 \ g\\\\t_2 = -22\\\\\Delta t= t_1-t_2\\\\[/tex]

     [tex]= 0-(-22)\\= 22[/tex]

specific heat for ice = 2.108 [tex]\frac{J}{gk} \\[/tex]

Formula:

[tex]\bold{Q= mc \Delta t} \\[/tex]

   [tex]= 59 \times 2.108 \times 22\\\\= 2736.1 \ \ J[/tex]

Question
Write the correct skeleton equation for the following:

fluorine gas reacts with calcium metal to form

solid calcium fluoride

Answers

Let's see

Fluorine reacts with Calcium metal to form calcium fluoride

[tex]\\ \rm\rightarrowtail Flourine+Calcium\longrightarrow CaF_2[/tex]

Write states

[tex]\\ \rm\rightarrowtail Fluorine(g)+Calcium (s)\longrightarrow Calcium\: Fluoride (s)[/tex]

The chemical equation when fluorine gas reacts with calcium metal to form solid calcium fluoride is Ca + F₂[tex]\rightarrow[/tex] CaF₂.

What is chemical equation?

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

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10. The property of water that accounts for its' ability bead up into round drops is
a. Adhesion
b. Capillary action
b. Cohesion
d. Dispersion forces

Answers

Answer:

c. Cohesion

Explanation:

Hope this helps and have a nice day

Define Magnetic force and Magnetic field

Answers

Description:A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetized materials. A charge that is moving in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field. Magnetic force, attraction or repulsion that arises between electrically charged particles because of their motion. It is the basic force responsible for such effects as the action of electric motors and the attraction of magnets for iron

Answer:A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetized materials. A charge that is moving in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field

Explanation:hope this helps :DD

18 points ! Kinetic Molecular Theory has to do with
A. the identity of gas particles.
B. the pressure of gas particles.
C. the motion of gas particles.
D. the volume of gas particles.

Answers

Answer:

C. the motion of gas particles.

Explanation:

The kinetic molecular theory is a simple but very effective model that effectively explains ideal gas behavior. The theory assumes that gases consist of widely separated molecules of negligible volume that are in constant motion, colliding elastically with one another and the walls of their container with average velocities determined by their absolute temperatures.

A chemist wants to extract copper metal from copper chloride solution. The chemist places 1.50 grams of aluminum foil in a solution of 14 grams of copper (II) chloride. A single replacement reaction takes place. What best explains the state of the reaction mixture after the reaction?

Unbalanced equation: CuCl2 + Al → AlCl3 + Cu (4 points)

Group of answer choices

Less than 6.0 grams of copper is formed, and some aluminum is left in the reaction mixture.

More than 6.5 grams of copper is formed, and some aluminum is left in the reaction mixture.

Less than 6.0 grams of copper is formed, and some copper chloride is left in the reaction mixture.

More than 6.5 grams of copper is formed, and some copper chloride is left in the reaction mixture.

Answers

Less than 6.0 grams of copper is formed, and some aluminum is left in the reaction mixture

Stoichiometric calculations

From the equation of the reaction:

3CuCl2 + 2Al → 2AlCl3 + 3Cu

Mole ratio of CuCl2 and Al = 3:2

Mole of 1.5 g aluminum foil = 1.5/26.98

                                                    = 0.06 moles

Mole of 14 g CuCl2 = 14/134.45

                                    = 0.10 moles

For every 3 moles of CuCl2, 2 mole of Al is needed.

Thus, for 0.10 moles of CuCl2, the mole of Al needed would be:

                                      0.10 x 2/3 = 0.07 moles

CuCl2 is, thus, slightly in excess while Al is the limiting reagent.

Mole ratio of Al and Cu = 2:3

For 0.06 mole Al, the mole of Cu will be: 0.06x3/2 = 0.09 moles

Mass of 0.09 moles Cu = 0.09 x 63.55

                                            = 5.71 g

Thus, less than 6.0 grams Cu is formed while a little CuCl2 would be left in the reaction mixture.

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please help , thank you !!

Answers

I believe the answer to your question it’s going to be “23 are from the father,and 23 are from the mother”

A volume of 75 mL of 0. 060 M NaF is mixed with 25 mL of 0. 15 M Sr(NO3)2. Calculate the concentrations in the final solution of NO3 - , Na , Sr2 , and F-. (Ksp for SrF2

Answers

For a volume of 75 mL of 0. 060 M NaF is mixed with 25 mL of 0. 15 M Sr(NO3)2, the concentrations in the final solution is mathematically given as

[NO3-] = 0.075 M[Na+] = 0.045 M[Sr2+] = 0.015 M[F-] = 0.00012 M

What are the concentrations in the final solution of NO3 - , Na , Sr2 , and F-.?

Generally, the equation for the molarity of NaF is mathematically given as

M NaF= millimoles / total volume

M NaF= = 75 x 0.060 / (75+ 25)

M NaF  = 0.045

Where, Sr(NO3)2 molarity = 25 x 0.15 / (75+ 25)

Sr(NO3)2 molarity = 0.0375 M

The Chemmical reaction of Sr and F is

Sr+2 + 2 F ---> SrF2  

Therefore,Ksp = [Sr+2] [F-]^2

2.0 x 10^-10 = 0.015 [F-]^2

[F-] = 1.2 x 10^-4 M

In conclusion,  the concentrations are

[NO3-] = 0.075 M[Na+] = 0.045 M[Sr2+] = 0.015 M[F-] = 0.00012 M

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Describe the changes in membrane permeability that occur at the point of stimulation on the axon.

Answers

Answer:

The permeability of a membrane is affected by temperature, the types of solutes present and the level of cell hydration. Increasing temperature makes the membrane more unstable and very fluid.

Explanation:

The Sun keeps all of the planets orbiting it because _____.

A. he Law of Ellipses states that the planets orbit the Sun in circular patterns
b. the Law of Universal Gravitation states that an increase in mass causes an increase in gravitational force
C. the Law of Harmonies states that the motion of the planets will not stop unless an outside force is applied
D. the Law of Equal Areas states that planets sweep equal areas in equal periods of time around the Sun

Answers

Answer:

a. because of how the earth circulates around the sun.

A bird flies 45 meters in 3 seconds. What is its speed?

Answers

Speed is 0.08 m/s.
Explanation:
Given the distance that the bird flies = 3.7
meters
The time is taken by the bird to fly the 3.7
meters = 46 seconds
We have given distance and time. Now we
have to find the speed at which the bird
flies. So, to calculate the speed of the bird
we have to divide the distance by the time
Below is the formula to find the speed.
Speed = Distance / Time
Now insert the given value in the formula.
Speed = 3.7 / 46 = 0.08 m/s


1. Why is sodium kept immersed in keroscne oil?​

Answers

Explanation:

Sodium and Potassium are highly reactive metals and react vigorously with the oxygen, carbon dioxide and moisture present in the air such that it may even cause a fire. To prevent this explosive reaction, Sodium iskept immersed in kerosene becauseSodium doesn't react with kerosene

6. 0.465 mole sample of gas exerts 4.43 atm of pressure in a 2.25 L container. What is the temperature of the gas in the container?

Answers

Answer:

T = 262K

Explanation:

n = 0.465

P = 4.43 atm

V = 2.25 L

T = ?

Follow this equation below

PV = nRT

4.43 x 2.25 = 0.465 x 0.08206 x T

9.97 = 0.038 x T

(Dividing both sides by 0.038 to get rid of it)

T = 262K or you could say 262.4K

Hope this helps!!

Other Questions
PLZ ANSWET I NEED THIS DONE RIGHT BY WEDNESDAY!!30 POINTS AND BRAINLY IF THERE ALLLL RIGHT!!!I NEED THIS TO BE RIGHT IT WILL HELP MT GRADE ALOT!!!1.Which portion of the narrative arc would define the following portion from The Oasis: Africa?"Suddenly the Sheikh stopped and pointed to the south. The caravan halted, and everyone prepared his arm. Matchlocks were primed, cartridges rammed home, and swords loosened in their sheaths. Was it the Tuaregs again across our path? But Mohammed, the keen-eyed, shouted joyfullyThe oasis, the oasis! I see the palm-trees.'Question 3 options:A.ExpositionB.Rising ActionC.Complicating IncidentD.Climax2.Which detail in The Oasis: Africa DOES NOT support the idea that the Sahara Desert is perilous?A."Misery of hunger, torture of thirst; unending discomfort of swarming lice."B."This danger past, we had lost another day making a wide detour to the east in order to avoid the fierce, tameless Tuaregs, who were marauding in the district."C."Canopus, the great star of prehistoric Egypt, blazed white above the horizon; Sirius shone like a peerless diamond, and Aldebaran like a ruby."D."One day the dreaded sirocco had swept upon us."3.Which textual evidence from The Interlopers supports the conclusion that hatred eventually takes its own revenge?A."If only on this wild night, in this dark, lone spot, he might come across Georg Znaeym, man to man, with none to witnessthat was the wish that was uppermost in his thoughts."B."'Who are they?' asked Georg quickly, straining his eyes to see what the other would gladly not have seen. 'Wolves.'"C."An idea was slowly forming and growing in his brain, an idea that gained strength every time that he looked across at the man who was fighting so grimly against pain and exhaustion.D,Relief at being alive and exasperation at his captive plight brought a strange medley of pious thank-offerings and sharp curses to Ulrich's lips.4.ow does the narrator's point of view from "The Interlopers" shape what the reader learns from the narrative?A.First-person point of view only lets the reader know what Georg Znaeym was thinking.B.An omniscient narrator lets the reader know everything about the characters and events in this story.C.First-person point of view only lets the reader know what Ulrich von Gradwitz was thinking.D.Third-person point of view gives narration of this story from the perspective of one of the wolf pups as he told this background story to the others in the pack while they were settling down for the night picking their teeth and reminiscing from the days adventures.5.Based on what readers learn from this excerpt from "The Interlopers," Why didn't the two neighbors shoot one another?"The two enemies stood glaring at one another for a long silent moment. Each had a rifle in his hand, each had hate in his heart and murder uppermost in his mind. The chance had come to give full play to the passions of a lifetime. But a man who has been brought up under the code of a restraining civilisation cannot easily nerve himself to shoot down his neighbour in cold blood and without word spoken, except for an offence against his hearth and honour."A.Ulrich von Gradwitz couldnt pull the trigger on Georg because Georg, or Georgette (her real name), was his girlfriend in high school.B.Their powder was wet, so they decided to duel with blades.C.Because of their code of honorD,They couldnt see through the rain storm.6.Which sentence DOES NOT provide evidence that the narrator in "The Black Cat" may be unreliable? A,"From my infancy I was noted for the docility and humanity of my disposition."B."My immediate purpose is to place before the world, plainly, succinctly, and without comment, a series of mere household events."C."We had birds, gold-fish, a fine dog, rabbits, a small monkey and a cat."D,"Mad indeed would I be to expect it, in a case where my very senses reject their own evidence."7.Read this excerpt from The Black Cat by Edgar Allan Poe."Hereafter, perhaps, some intellect may be found which will reduce my phantasm to the common-placesome intellect more calm, more logical, and far less excitable than my own, which will perceive, in the circumstances I detail with awe, nothing more than an ordinary succession of very natural causes and effects."What does the phrase, common-place, mean?A.SmellyB.Out of placeC.RandomD,Normal/Acceptable8.How does the first-person point of view affect the overall story in "The Black Cat"?A.It gives readers insight into the twisted thoughts and feelings of the man condemned to die.B.It makes readers feel at ease as they read a chilling story.B.It allows the narrator to give information about the feelings of the man as well as his wifes feelings.D.It gives readers an intimate experience of what it feels like to have one's eye cut out with a pocket knife. 5. 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