What does a dissolved salt look like?
A. The salt crystals are surrounded by water molecules.
B. The salt crystals separate into salt molecules in the water.
C. The salt separates into ions that settle to the bottom
D. The ions in the salt are surrounded by water molecules.

Answers

Answer 1

Answer:

I want to say your answer is B)

Answer 2

The answer is D because the ions in the salt will be surrounded by water molecules

Dissolution in water occurs as a result of ionic interactions. This means that the ions (charged atoms) of the solute has to interact with the ions of water for the solute to dissolve. Based on this principle, only polar compounds can dissolve in water.

According to this question, salt is polar because it contains positive (+) and negative (-) ions. Hence, when placed in water, these ions will interact with the ions of water i.e. H+ and OH-. This causes dissolution of salt in water to form salt solution.

Hence, a dissolved salt will look like "ions in the salt are surrounded by water molecules".

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Related Questions

which is correct? not sure which is right

Answers

Answer:

butane

Explanation:

pls help Photosynthesis is used to produce food for plants in the form of glucose. In the process, oxygen is released. As shown in the diagram, plants require water and carbon dioxide (from the air). What else is required for photosynthesis and what role does it play? A) Light is required to provide energy for photosynthesis. B) ATP is required as an energy source for photosynthesis. C) Glucose is required as an energy source for photosynthesis D) Oxygen is required to split water molecules in photosynthesis.

Answers

Answer:

A) light is required

Explanation:

ATP, Glucose, and oxygen are created from the process

PLEASE HELP I WILL GIVE BRAINLEST! what is life about?

Answers

Answer:

To live for God.

Explanation:

We are Gods creation. We are here to live for the Lord, to do love& to help save each other so when time comes we will be forever blessed.

Answer:

life is about life I think

Why do the atoms in a molecule want to be so far apart? (Mention Electron domains/Electrons)

Answers

Answer:

Because like chargee repel, two molecules will resist being brought close together.

Explanation:

The shorter the distance is between them, the more energy it takes to push them to get even closer. If the molecules approach each other with sufficient energy, however, they may exchange atoms or even form a bond( chemical reaction)

Which of these defines a volcano?

A. An undersea rift that can cause the ocean floor to move
B. A mountain on Earth's crust through which molten material leaves the mantle
C. A large pile of rocks and other debris that turn into liquid when heated
D. An extremely tall collection of liquid metals that harden when cooled

Answers

the answer is b!!! !!!

Answer:

B

Explanation:

The _____ of a weak acid is strong.

a. conjugate acid
b. conjugate base
c. acid
d. base

Answers

Answer: conjugate base

Explanation:

According to the Bronsted-Lowry conjugate acid-base theory, an acid is defined as a substance which looses donates protons and thus forming conjugate base and a base is defined as a substance which accepts protons and thus forming conjugate acid.

A weak acid has a strong conjugate base whereas a strong acid has a weak conjugate base. Similarly a weak base has a strong conjugate acid whereas a strong base has a weak conjugate acid.

[tex]CH_3COOH+NH_3\rightarrow CH_3COO^-+NH_4^+[/tex]

Acetic acid [tex]CH_3COOH[/tex] is weak acid which has strong conjugate base [tex]CH_3COO^-[/tex]

anybody know where to find this packet at online ?

Answers

Take a pic on google and do google speech’s nd it’ll find the packet for you

The temperature of a sample of gas in a steel


tank at 30.0 kPa is increased from -100.0°C to


25.0 °C. What is the final pressure inside the


tank?


A. 5.17 kPa


B. 51.7 kPa


C. 517 kPa


D. 5170 kPa

Answers

Answer:

[tex]P_2=51.7kPa[/tex]

Explanation:

Hello,

In this case, we apply the Gay-Lussac's law which allows us to understand the pressure-temperature behavior via a directly proportional relationship:

[tex]\frac{P_1}{T_1}=\frac{P_2}{T_2}[/tex]

Thus, since we are asked to compute the final pressure we solve for it in the previous formula, considering the temperature in absolute Kelvin units:

[tex]P_2=\frac{P_1T_2}{T_1}=\frac{30.0kPa*(25.0+273)K}{(-100.0+273)K} \\\\P_2=51.7kPa[/tex]

Best regards.

Answer:

B = Pressure = 51.7kPa

Explanation:

P1 = 30kPa

T1 = -100°C = (-100 + 273.15)K = 173.15K

T2 = 25°C = (25 + 273.15)K = 298.15K

P2 = ?

This question involves the use of pressure (p) law which states that the pressure of a fixed mass of gas is directly proportional to its temperature(t) provided that the volume of the gas is kept constant.

Mathematically,

P = kT, k = P / T

P1 / T1 = P2 / T2 = P3 / T3 =.......= Pn / Tn

P1 / T1 = P2 / T2

Solve for P2,

P2 = (P1 × T2) / T1

P2 = (30 × 298.15) / 173.15

P2 = 8944.5 / 173.15

P2 = 51.66kPa

The pressure of the gas is approximately 51.7kPa

The arrow signifies?

A. Nothing

B. Movement from left to right

C. reaction has occurred

Answers

Answer:

The correct answer would be C.

C. A Reaction has Occurred

Which is a property of every heterogeneous mixture?

The mixture is made up of at least two different states.
The mixture is made up of something dissolved in a liquid.
The composition of the mixture is the same throughout.
The characteristics of the mixture change within a sample.

Answers

Answer:

D.) The characteristics of the mixture change within a sample

Explanation:

Because the guy above me is wrong

Answer:

D.) The characteristics of the mixture change within a sample.

Explanation:

HTH!! Have a good day!!! Don't forget to smile!!!!

Which word equation represents a neutralization reaction? *
base + acid salt + water
base + salt → water + acid
salt + acid base + water
salt + water → acid + base

Answers

Answer:

A

Explanation:

Neutralization reaction is

base + acid ---> salt + water.

A because neutralization

An exothermic reaction releases 13,450J of heat. How many calories of energy are released? A) 5 56,274 calories B)1,244 caloriesC) 134,500 caloriesD) 3,215 calories

Answers

Answer:

The correct option is;

D) 3,215 calories

Explanation:

Here we are to convert the units of energy

The given units is in Joules, J, while the required units is in calories, where the calorie is defined as the amount of heat required to raise the temperature of 1 gram of water by 1°C

The conversion formula therefore is 1 calorie = 4.1868 J

Hence, 1 J = 1/4.1868 calories

13,450 J = 13,450 × 1/4.1868 calories = 13,450 /4.1868 calories = 3212.477 calories

∴ 13,450 J ≈ 3,215 calories.

A hydrate is ​typically a crystalline compound in which water molecules are chemically bound to another compound or an element. ​When CuSO​4​​⋅​ 5H​2​O is heated in a crucible, there is a loss of water. How should a student determine the amount of water lost?
a.Subtract the mass of the CuSO​4​ from the mass of CuSO​4​⋅ 5H​2​O
b.Subtract the mass of the CuSO​4​⋅ 5H​2​O from the mass of CuSO​4
c.Add the masses of CuSO​4​⋅ 5H​2​O and CuSO​4
d.Multiply the masses of CuSO​4​⋅ 5H​2​O and CuSO​

Answers

When CuSO​4​​⋅​ 5H​2​O is heated in a crucible, there is a loss of water. Subtract the mass of the CuSO​4​⋅ 5H​2​O from the mass of CuSO​4 to determine the amount of water lost. Therefore, option B is correct.

What do you mean by the compound ?

A substance made up of two or more components is called a compound. Table salt, water, and carbon dioxide are a few examples of compounds.

Chemical substances have no electrical charge. In most cases, ionic compounds are created when a metal interacts with a nonmetal. The reaction between two nonmetals produces covalent compounds.

Elements are unadulterated substances made up of only one kind of atom. Compounds are substances that are created when two or more different types of elements are chemically combined in predetermined ratios.

To determine the amount of water lost subtract the mass of the CuSO​4​⋅ 5H​2​O from the mass of CuSO​4.

Thus, option B is correct.

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HELPPP TODAY IS THE LAST DAY OF SCHOOL

Answers

Answer:

orbiting closer to the earth's surface.....im pretty sure abt it

if the volume and Kelvin temperature are reduced by one-half what will happen to the pressure???

Answers

Answer:

the pressure will decrease

Explanation:

Ideal gas law is valid only for ideal gas not for vanderwaal gas. The pressure will remain same as the initial pressure on decreasing volume and temperature by half.

What is ideal gas equation?

Ideal gas equation is the mathematical expression that relates pressure volume and temperature. real gas can become ideal gas at low pressure and high temperature.

Mathematically the relation between Pressure, volume and temperature can be given as

PV=nRT

where,

P = pressure of  gas

V= volume of  gas =1/2V

n =number of moles of  gas

T =temperature of  gas =T/2

R = Gas constant = 0.0821 L.atm/K.mol

Substituting all the given values we get

P×(V/2)=nR(T/2)

(PV)/2=(nRT)/2

PV=nRT

Therefore, the pressure will remain same as the initial pressure  on decreasing volume and temperature by half.

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Select the correct answer.
Which statement best describes the image?



A.
Ocean temperatures are relatively stable. During the day, the ocean cools the hotter air temperatures above land.
B.
Ocean temperatures are relatively stable. During the night, the ocean heats the cooler air temperatures above land.
C.
Ocean temperatures experience high fluctuations. During the day, the land cools the hotter air temperatures above the ocean.
D.
Ocean temperatures experience high fluctuations. During the night, the land heats the cooler air temperatures above the ocean.

Answers

Answer:

C.

Ocean temperatures experience high fluctuations. During the day, the land cools the hotter air temperatures above the ocean.

Explanation:

Generally ocean temperatures range from about -2o to 30o C (28-86o F). The warmest water tends to be surface water in low latitude regions, while the surface water at the poles is obviously much colder

C. Ocean temperatures experience high fluctuations. During the day, the land cools the hotter air temperatures above the ocean.

What is the hottest ocean temperature?

The hottest ocean area is in the Persian Gulf, where water temperatures at the surface exceed 90 degrees Fahrenheit in the summer. Another hot area exists in the Red Sea, where a temperature of 132.8 degrees Fahrenheit has been recorded at a depth of about 6,500 feet.

What is a good temperature to swim in the ocean?

A little cooler than your body temperature (98.6° Fahrenheit) should not be too cold so that you don't get chilled. 70° to 78° Fahrenheit is the range where most folks feel "comfortable" swimming.

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How do you convert kilometers to grams

Answers

By multiplying the mass value by 1000.

Answer:

Hey!

What you have to do is to multiply the amount of mass  * i.e. 67.9g * by 1000 * 67,900kg! *

Explanation:

HOPE THIS HELPS!

What is a conductor
When electrons move easily though objects
When electrons cannot move easily through objects
When electrons are at rest

Answers

Hey there!

The answer would be A. When electrons. move easily through objects

In science, a conductor is a material that permits a flow of energy. A material that allows the flow of charged particles is an electrical conductor. A material that enables the transfer of thermal energy is a thermal conductor or heat conductor.

Hope this helps !

If a gas occupies 22.4 L at 0.265 atm, then what will the pressure be in atmospheres if the gas occupies 35.52 L? Assume all other
variables are held constant
A)0.167 atm
B)0.437 atm
C)0.886 atm
D)149 atm

Answers

Answer:

The new pressure is 0.167 atm

The correct answer is option A

Explanation:

Step 1: Data given

Volume of the gas = 22.4 L

Pressure of the gas = 0.265 atm

The volume increases to 35.52 L

Step 2: Calculate the new pressure

P1*V1 = P2*V2

⇒with P1 = the initial pressure = 0.265 atm

⇒with V1 = the initial volume = 22.4 L

⇒with P2 = the new pressure = TO BE DETERMINED

⇒with V2 = the increased volume = 35.52 L

0.265 atm * 22.4 L = P2 * 35.52 L

P2 = (0.265 atm * 22.4 L) / 35.52 L

P2 = 0.167 atm

The new pressure is 0.167 atm

The correct answer is option A

The pressure of a gas is 1.35 atm at temperature of 21oC. If the volume and amount of gas is unchanged, what pressure would be needed for the temperature to raise to 36oC?

Answers

Answer:

2.31 atm

Explanation:

Please see the step-by-step solution in the picture attached below.

Hope this answer can help you. Have a nice day!

QUESTION 6
Amylopectin is a straight-chain polysaccharide.
O False
True

Answers

Amylopectin is not straight chain poslysaccharide so this is false so yeah :) hello cutie



Using the diagram of the forces on an airplane, which arrow represents the force of gravity?
A) A
B) B
C) C
D) D

Answers

Answer:

Is there a diagram that you can post

Answer:

D

Explanation:

Usatestprep :)

What is the oxidation state of Fe(s)

Answers

The  oxidation state is zero for Fe (s)

How many copper atoms are in 70 grams of copper

Answers

1.10156422119408 moles

Using tongs, place the 250 mL beaker on the hotplate.

Temperature of the water: 65

°C. Reaction time:

seconds

Answers

Answer:

first question: temp: 40, time: 26.3

second question: temp: 65, time: 14.2

Explanation:

for edge 2021

PLEASE HELP ;)
Tristan accidentally spilled a substance with an unknown ph on his hands and it burns. Why should he wash his hands immediately with soap and water?

a. the substance spilled on his hand is an acid. The acid in the soap will neutralize the acid to make it stop hurting.


b. The substance spilled on his hand is an acid. The base in the soap will neutralize the acid to make it stop burning.


c. The substance spilled on his hands is a base. The base in the soap will neutralize the acid to make it stop hurting.


d. The substance spilled on his hand is an base. The base in the soap will neutralize the base to make it stop hurting.

Answers

Answer:

b. The substance spilled on his hand is an acid. The base in the soap will neutralize the acid to make it stop burning.

Explanation:

In this case, the substance spilled on the hand is an acid, so it will require neutralization. In neutralization reactions, you have an acid and a base, which will be soap. This reaction is known as saponification.

Name this compound:
Ca(CO3)

Answers

Calcium Carbonate would be your answer!

hope it helps!

Need help with these three pls!!

Answers

Answer:

True True False

Explanation:

Valves are in most veins (to prevent backflow). Also valves in the chart and an in an combustion engine.

So the first statement is True.

Valves control the flow rate and direction of fluid within a closed system. So the second statement is True.

1 Pa = 1 N/m² So since 1 Pa equals to one newton per square metre the third statement is False.

A chemist needs 2.00 liters of hydrochloric acid. How many pints is this?

Answers

Is that supposed to say 200/2.00??

Answer:

4.22675

Explanation:

a. What is the mass in grams of 4.2 mols of FeO2?​

Answers

4.2 Mols FeO2 * 71.844g/1mol = 301.74g FeO2

According to mole concept, there are 368.928 g  mass in 4.2 moles of FeO₂.

What is a mole?

Mole is defined as the unit of amount of substance . It is the quantity measure of amount of substance of how many elementary particles are present in a given substance.

It is defined as exactly 6.022×10²³ elementary entities. The elementary entity can be a molecule, atom ion depending on the type of substance. Amount of elementary entities in a mole is called as Avogadro's number.

It is widely used in chemistry as a suitable way for expressing amounts of reactants and products.For the practical purposes, mass of one mole of compound in grams is approximately equal to mass of one molecule of compound measured in Daltons. Molar mass has units of gram per mole . In case of molecules, where molar mass  in grams present in one mole  of atoms is its atomic mass.

Number of moles=mass/molar mass

Thus, mass=4.2×87.84=368.928 g.

Thus, there are 368.928 g  mass in 4.2 moles of FeO₂.

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Which of the following are the major "reservoirs" of carbon in the environment?Select one or more:A. the SunB. natural habitatsC. the Earth's interiorD. the atmosphereE. sedimentsE the oceansG. the human body When a story is organized as an informational text , the reader knows the central idea will have to do with Which is an example of an effective study skill? please answer this correctly I have to finish this today as soon as possibleEstimate the measure of this angle within 10. Kevin, Rajiv, and Yakov are hunters who live next to a recreational wildlife game area that is open to hunting; in other words, anyone is free to use the recreational wildlife game area for hunting. Assume that these men are the only three hunters who hunt in this recreational wildlife game area and that the recreational wildlife game area is large enough for all three hunters to hunt intensively at the same time.Each year, the hunters choose independently how often to hunt; specifically, they choose whether to hunt intensively (that is, to set several traps and hunt long hours, which hurts the sustainability of the recreational wildlife game area if enough people do it) or to hunt nonintensively (which does not hurt the sustainability of the recreational wildlife game area). None of them has the ability to control how much the others hunt, and each hunter cares only about his own profitability and not the state of the recreational wildlife game area.Assume that as long as no more than one hunter hunts intensively, there are enough animals to restock the recreational wildlife game area. However, if two or more hunt intensively, the recreational wildlife game area will become useless in the future. Of course, hunting intensively earns a hunter more money and greater profit because he can sell more animals.The recreational wildlife game area is an example of _____________ because the animals in the recreational wildlife game area are ________ and ___________. Read the following passage:In his 2005 autobiography, Brison explains that he"eventually longed for the slower pace of the Midwest"after he left Ohio.Which method is used to integrate the quotation into this passage?A. The name of the source of the quotation appears at theend of the quotation.B. The quotation is presented as part of the writing and doesnot stand on its own.O c. The quotation is paraphrased in the words of the writer ofthe passage.O D. The name of the author of the quotation is inserted at theend of the quotation. The marcus family goes out to eat 4 nights during vacation. There are two adults and two children in their familyThe first night they go out to a buffet, the cost is 24.99 per adult and 12.99 per child. Plus 8% sales tax, how much did dinner cost? Why did American policy makers promote expansionism in the late 1800s? Select the correct answer.Marissa predicts an informational text about firefighters will address what they do at fire stations when there is not an emergency. Which heading best confirms her prediction?A. Exercise and RelaxationB. Essential EquipmentC. Types of TrucksD. Ranks and Insignia Determine which ordered pairs are also in the relation where the rise is -2, the run is3, and (6,2) lies on the line.a) (-9, -12) and (-6, 2)b) (-3, 4) and (3,8)c) (0,9) and (-2, 12)d) (9,0) and (12, -2) Which conjugated verb best completes this sentence?Yolanda y Patricia por correo electrnico.A. les comunicanB. te comunicasC. se comunicaD. se comunican 15)Which expression is a PRODUCT?A)8(6+ 3)B) 8(6 + 3)5(2) + 2(6 x 3)D)5(2 + 3) - 4(8 + 1) a. What is the mass in grams of 4.2 mols of FeO2? HELPWhat is the longest line segment that can be drawn in a right rectangular prism that is 15cm long, 8 cm wide, and 7 cm talk What is the organizational structure of this excerpt?A. cause and effectB. compare and contrastC. central ideas and supporting detailsD. problem and resolution Find the value of x in the figure. Enter the number ONLY! Solve for the missing side HURRY ITS FOR A TEST when 3x - 2x +7 is subtracted from 5x - 4x+ 10 , what's the difference? a. 5x-7x+2x+3b.5x + x + 2x - 3c.5x - 7x + 2x + 17d. 5x + x + 2x + 17 solution of 4y - 2x < 8a. (0,2)b. (-4,0)c. (1,2)d. (10,7) What is the y-coordinate of the solution of the system of equations? {y=3x26 2xy=19 Enter your answer in the box.