What is the phase label on HCl?


A. g

B. aq

C.

D. e

E. s

Answers

Answer 1

Answer:

B. aq if the reaction is inorganic (double or single displacement), neutralization, etc.

Explanation:

Hello there!

In this case, unfortunately we are not given the undergoing chemical reaction; however, in the most of the double displacement, neutralization, precipitation and in general, inorganic reactions, the hydrochloric acid must be B. aq as it must be dissolved in water as the reaction media. On the other hand, in some organic reactions, it can be either aqueous or gaseous, the latter, specially as a product. For that reason, you will need to make sure whether your reaction is organic or inorganic to correctly figure out the phase label.

Best regards!


Related Questions

In exothermic reactions, the system
in energy.
energy, while the surroundings
*
absorbs, increase
absorbs, decrease
releases, increase
releases, decrease

Answers

Answer:

releases, increase

Explanation:

The total energy of products in an Exothermic reaction is less compare to

total energy of the reactants. As a result of these the enthalpy becomes negative, then there is release of heat to the surroundings, which increase the energy of the immediate surroundings inform of heat. Hence the system release energy while the surroundings energy increase.

The initial volume of a gas is 21 L and the final volume is 38.7 L. If the initial temperature was 261 K, what is the final temperature (in Kelvin)?

Answers

Answer:

480.9K

Explanation:

V1=21L

V2=38.7L

T1=261K

T2=?

Using Charles law,

V1/T1=V2/T2

Inputting the given values,

21/261=38.7/T2

T2=480.9K

Calculate the pOH of this solution. pH = 1.90 pOH =

Answers

Answer:

12.1

Explanation:

Since the pH has been given, the pOH can be found by using the formula

pH + pOH = 14

pOH = 14 - pH

From the question we have

pOH = 14 - 1.9

We have the final answer as

12.1

Hope this helps you

Answer:

12.10

Explanation:

A mixture of water and water vapor is present in a closed vessel at 20 degrees Celsius. the total pressure of the system is 755.0 mmHg. Partial pressure of water vapor at 20 degrees Celsius equals 17.5 mm Hg. What is the partial pressure of H2

Answers

Answer:

737.5 mmHg

Explanation:

Ptotal=PH2O+PH2

P is the pressure and since we have Ptotal and PH2O, we can solve for PH2

755=17.5+x

755-17.5=x

x=737.5

Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical equation.

______ + Cacl2 → H2O

Answers

Answer: [tex]Ca(OH)_2+2HCl\rightarrow CaCl_2+2H_2O[/tex]

Explanation:

Neutralization is a chemical reaction where an acid reacts with a base to form salt and water.

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side.

The balanced chemical equation will be:

[tex]Ca(OH)_2+2HCl\rightarrow CaCl_2+2H_2O[/tex]

Thus the reactants are calcium hydroxide [tex](Ca(OH)_2[/tex] and hydrochloric acid [tex](HCl)[/tex]


[tex]\huge \underbrace \mathfrak \red {Question: } [/tex]
❥How can an acid be diluted?​

Answers

Explanation:

Acid can be diluted through the distillation process in which acid is reacted with distilled substance like distilled water.

Answer:

an acid be diluted by distillation process.

What is the main function of burette?

Answers

Answer:

I  think it A

Explanation:

Answer:

its d i think

Explanation:

If I have 7.0 x 10^24 formula units of magnesium chloride, how many grams of chlorine would I have?

Answers

Answer:

824 g

Explanation:

First we convert 7.0 x 10²⁴ formula units of magnesium chloride (MgCl₂) into moles, using Avogadro's number:

7.0 x 10²⁴ formula units ÷ 6.023x10²³ formula units/mol = 11.62 mol MgCl₂

There are two Cl moles per MgCl₂ moles, meaning that we have (2 * 11.62) 23.24 moles of Cl

Finally we convert 23.24 moles of chlorine into grams, using chlorine's molar mass:

23.24 mol * 35.45 g/mol = 824 g

Match each definition to the appropriate term.
Sum of the internal energy plus the product of the pressure and volume for a reaction
The extent of randomness in a system
The condition that a reaction takes place without outside help
Difference of the enthalpy (of a system) minus the product of the entropy and absolute temperature
Solution in which no more solute can be dissolved in the solvent

Answers

Answer:

Enthalpy, Entropy, Spontaneity, Gibbs free energy, saturated solution

Explanation:

Enthalpy is defined as the heat released or the heat absorbed during the process at a constant pressure which is equal to the Enthalpy shift. Enthalpy is also called as heat content and it is the sum total of internal energy and the product of the volume and pressure of a system.

Entropy is defined as the measure of randomness of a system or the disorder of the system.

Spontaneity is defined as the condition of being spontaneous. It is the condition where a reaction takes place without any help from outside.

Gibbs free energy is defined as the energy that is used to quantify the maximum work done in a thermodynamic system at constant temperature and pressure. It is the also known as the Gibbs energy or function.

Saturated solution is defined as the solution where the maximum amount of the dissolved solute is present in the solvent. In case of a saturated solution, the extra solute does not dissolve. In order words, it is a solution where no more solute can dissolved in solvent.

The sum of the internal energy plus the product of the pressure and volume for a reaction represents Enthalpy , Entropy is the extent of randomness in a system, Spontaneity is that condition that a reaction takes place without outside help, Gibb's free energy is the difference of the enthalpy (of a system) minus the product of the entropy and absolute temperature and Saturated solution in which no more solute can be dissolved in the solvent.

Which properties will define chemical reaction?

Thermodynamically chemical reactions will be define by considering the properties like entropy, enthalpy, free energy, internal energy, temperature and many more.

Enthalpy of the reaction tells about the total amount of heat released or absorbed during a chemical reaction, and it is calculated as sum of the internal energy plus the product of the pressure and volume for a reaction.Entropy of any reaction tells about the randomness and uncertainty present within the molecule or atoms.Spontaneity of any chemical reaction tells about the ease of completion of that reaction. Gibb's free energy is the total energy involved in that reaction and represented as difference of the enthalpy (of a system) minus the product of the entropy and absolute temperature.Saturated solutions are those solutions in which all solute get completely dissolved, no solute will remain undissolved.

Hence correct answers are Enthalpy , Entropy ,Spontaneity, Gibb's free energy and Saturated solutions.

To know more about saturated solutions, visit the below link:
https://brainly.com/question/4529762

What happens when particles collide in sound waves?

Answers

Answer:

When sound is created, the air particles vibrate and collide with each other, causing the vibrations to pass between air particles. The vibrating particles pass the sound through to a person's ear and vibrate the ear drum. Light travels much faster than sound through air.

Explanation:

Write a scientific explanation that answers the following question: Is matter conserved during a
chemical reaction in both closed and open systems?
Claim:
Evidence:
Reasoning:

Answers

Claim is : chemical reactions are smaller

Answer:

Matter is conserved during all chemical reactions because matter cannot be created or destroyed.

Explanation:

If 0.1 M solution of CH3COOH of acetic acid will beis 0.01 % ionized in aqueous solution,the ionization constant

a. 10^-7 .
b. 10^-5 .
c. 10^-3 .
d. 10^-9

Answers

I think the answer is B

Answer:

its answer b

Explanation:

IM GIVING 100 POINTS FOR WHOEVER ANSWERS THIS PLS HELP determine which heat transfers below are due to the process of conduction. I) You walk barefoot on the hot street and it burns your toes. II) When you get into a car with hot black leather seats in the middle of the summer and your skin starts to get burned when you touch the seats. III) A flame heats the air inside a hot air balloon and the balloon rises. IV) A boy sits to the side of a campfire. He is 10 feet away, but still feels warm. Question 1 options: I & II III & IV I, II, & IV II, III, IV

Answers

Answer:

I and II

Explanation:

A 108.9 g sample of water absorbs 114.6 calories of heat. The specific heat capacity of water is 1 cal/(g·°C). By how much did the temperature of this sample change, in degrees Celsius?

Answers

Answer:

The temperature of this sample changes by 1.052 degrees Celsius

Explanation:

As we know

[tex]Q = mc\Delta T[/tex]

Where m is the mass of the substance

c is the specific heat of the substance

and [tex]\Delta T[/tex] is the change in temperature

Substituting the given values in above equation, we get -

[tex]114.6 = 108.9 * 1 * \Delta T\\\Delta T = 1.052[/tex]degree Celsius

The temperature of this sample changes by 1.052 degrees Celsius

if a lake has excess levels of phosphates and nirates in its water what will most likely result ?

Answers

Answer:

Eutrophication

Explanation:

Eutrophication results when there is excess levels of phosphates and nitrates in its water of lake.

When there is high level of nutrition level in the water body of lake, then the productivity of water plants increases thereby leading to algal boom and hence Eutrophication.

What is the empirical formula for C6H12?

Answers

Answer:

The empirical formula of C6 H12,

3. Determine the enthalpy of formation for propane. 3C(s, gr) + 4H2(g) ---> C3H2(g) CzH3(g) AH = -2219.9 kJ C(s, gr) AH = -393.5 kJ H,(g) AH = -285.8 kJ a. -205.7 /mol b. -103.8 kJ/mol Å C. + 205.7 /mol d. + 103.8 /mol​

Answers

Answer:

b I hope this is right good luck

Which equation represents single replacement reaction? A) CH4 + 2 02 → CO2 + 2 H2O B) CaCO3 + CaO + CO2 C) 2 Na + 2 H2O → 2 NaOH + H2 D) LiOH + HCl → LiCl + H2O​

Answers

Answer:

C) 2 Na + 2 H2O → 2 NaOH + H2.

Explanation:

Hello there!

In this case, according to the given chemical reactions, it is possible to firstly understand that a single displacement reaction is characterized by the presence of a single element as the first reactant and a compound as the second one, thus, yielding a compound as the first product and a single element as the second one.

In such a way, according to the given choices, it possible to note that C) 2 Na + 2 H2O → 2 NaOH + H2 is the only one with the aforementioned condition as the element at the reactants side is Na and at the products side is H2.

Best regards!

The limestone used in building the Egyptian pyramids was used because it is _____________
O soft and sticky
O easily melted
O hard and brittle

Answers

Answer:

hard and brittle

hope this helps you ☺️☺️

good night take care sweet dream

Easily melted


The answer is on here already but ya that’s the answer

What value is equivalent to 7.2 kilograms

Answers

Answer: 15.8732828773 pounds

Explanation:

please help me please

Answers

Answer:

Two advantages are: Its cheap and it is a renewable energy source. Two disadvantages are it's not windy everyday and it will take up a lot of space for windmills.

Explanation:

A 15.0 mL solution of Sr(OH)₂ is neutralized with 21.1 mL of 0.350 M HCl. What is the concentration of the original Sr(OH)₂ solution?

Answers

Answer:

0.246 M

Explanation:

The reaction that takes place is:

Sr(OH)₂ + 2HCl → SrCl₂ + 2H₂O

First we calculate how many HCl moles reacted, using the given volume and concentration:

0.350 M * 21.1 mL = 7.385 mmol HCl

Then we convert HCl moles into Sr(OH)₂ moles, using the stoichiometric coefficients of the balanced reaction:

7.385 mmol HCl * [tex]\frac{1mmolSr(OH)_2}{2mmolHCl}[/tex] = 3.692 mmol Sr(OH)₂

Finally we calculate the concentration of the original Sr(OH)₂ solution:

3.692 mmol Sr(OH)₂ / 15.0 mL = 0.246 M

Why do we test for free chlorine in drinking water?

Answers

Answer:

The presence of free chlorine in drinking water is correlated with the absence of most disease-causing organisms, and thus is a measure of the potability of water

What's a house hold item that has nuclear energy

Answers

Answer:

Electricity, Weapons, Medicine · Food Treatments, ect.

The reduction of iron(III) oxide () to pure iron during the first step of steelmaking, ()()() is driven by the high-temperature combustion of coke, a purified form of coal: ()()() Suppose at the temperature of a blast furnace the Gibbs free energies of formation of and are and , respectively. Calculate the maximum mass of pure iron that can be produced by the combustion of of coke. Round your answer to significant digits.

Answers

Answer:

hello your question is incomplete attached below is the complete question

answer : To 2 significant digits = 5500 kg

Explanation:

Given

C(s) + O2 (g)  ----------> CO2  ( g )

mass of CO2 = 8.9 * 10^6 g

number of moles =  8.9 * 10^6 / 12  = 7.416 * 10 ^5  mol

same amount of moles is needed by O2 hence

attached below is the detailed  solution

which formula can be used to calculate the molar mass of ammonia

Answers

Answer:

Since there are 3 Hydrogen atoms present, the formula mass of H is 1.0 × 3 = 3.0 g/mol. Therefore, by adding them up, the formula mass of ammonia is: [14.0 g/mol + 3.0 g/mol] = 17.0 g/mol.

Which property do all metals have?
А They are hard.
B They conduct electricity.
С They form acidic oxides.
D They react with water.​

Answers

B.) They conduct electricity (I think)

does anyone know thisss???

Answers

B............................

5. Vilayanur Ramachandran belleves that in order to understand how our brains work, we need to look at brains that don't work as they should in order to see the differences
and effects that the disconnect of neurons can have on our memories, thoughts, and understanding.
True
O False

Answers

Answer:

true

Explanation:

2
A student put 25.0 cm of dilute hydrochloric acid into a conical flask.
The student added 2.5g of solid sodium carbonate and measured the change in temperature of
the mixture.
Which apparatus does the student need to use to obtain the most accurate results?
A balance, measuring cylinder, thermometer
B balance, pipette, stopwatch
C balance, pipette, thermometer
D
burette, pipette, thermometer

Answers

Answer:

A balance, measuring cylinder, thermometer

Explanation:

In this experiment, three things are really required and they are;

A balance Measuring cylinderThermometer

A balance is used to measure out the mass of 2.5g of solid sodium carbonate.

A measuring cylinder is used to measure out the 25.0 cm of dilute hydrochloric acid into a conical flask.

Lastly, a thermometer is used to monitor the change in temperature.

Other Questions
ANSWER FAST ILL GIVE BRAINLIEST!!To predict is the likely purpose of which of these presentations?A. the reasons for voting against the new tax increaseB. the most popular careers in the year 2020C. the life and times of Frederick DouglassD. the ways that regular exercise can improve your health Why were potlatches held in Northwest Coastal society? To celebrate important events to mark the end of the harvest to select members of the nobility to celebrate the start of summer Use the formula d=r*t to solve this problem.Marisol and Mee Young are taking Spains AVE train from Madrid to meet up with Marisols mother, who is in Seville, which is 336 miles away. If it took them 1.8 hours, how fast were they traveling?a.210phc.605 mphb.350mphd.186 mph Africa was governed by which countries?The AmericasAsian countriesEuropean countriesMiddle East countries mention four impacts of toxic relationships on setting life goals Write your question here (Keep it simple and clear to get the best answer) Explain why ammonia gas is not collected over water PLEASE HELP!! WILL GIVE BRAINLIST!!!!! I NEED THIS ASAP How can a property of water contribute to its ability to change stream corridors and affect erosion and deposition patterns? What type of stretching should Jake never do? ballistic stretching dynamic stretching static stretching none of the above A Big YearBy Bob KowalskiWould you go to the ends of the earth to see a bird? What if it were a really special bird: one with beautiful feathers, an entrancing call, or a silly dance? What if seeing that one special bird would allow you to win a contest?If that contest doesn't get you on television or win you any cash prizes, would you still do it? For those who participate in the "Big Year," the honor of beating the previous record is the only reward they get or even want.A "Big Year" is a year in which a person attempts to see as many different species of birds as possible within a particular region. For most in North America who participate in a "Big Year," this region is the lower 48 American states, plus Alaska, Canada, and a couple of French islands off the Canadian coast.You may be thinking that looking at birds is silly, but just think about the numbers of the recent record holders and the commitment it takes to get these numbers. One recent "Big Year" winner managed to see 744 birds in one year, missing the record by just one bird. Big Year birders travel by train, plane, boat, car, bicycle, and of course, by foot. They can cover over 150 thousand miles to get numbers of sightings this high. They can also spend a small fortune.Just to clarify, the birds these contestants are counting are the number that they see in a particular year. You see, the contest is based on an honor system. No pictures or other evidence is required as proof of a sighting. Most birders take great pride in their reputation and their abilities to see or hear and then identify a bird. Usually, important sightings of the rare birds needed to get counts in the 700s are visited by hundreds of birders. It is pretty hard to cheat your way to a record-breaking year, but in general, few are interested in cheating.This honesty comes from the fact that most people who want to break such a record know the greatest rewards are not necessarily in winning. Such rewards are in being able to commit a year of your life to doing something you love. Rewards are found in seeing amazing, inspiring creatures like the California Condor or the Magnificent Frigate bird. Rewards also come in spending time with people who, like you, want to spend their time looking to the skies and trees for glimpses of emerald, crimson, or cerulean blue feathered jewels.You don't have to be able to travel a continent to have a big birding experience though. Have a big month. Or a big weekend. Set a personal record, learn to identify the species that live in your part of the world, or try to learn the calls of just two species of birds. You will soon find looking at birds isn't such a strange way to spend your time.Extra! Extra! Backyard BirdingMany schools, families, and young birders across the country participate in the "Great Backyard Bird Count." While not as long as a "Big Year," the "Great Backyard Bird Count" happens every year. It depends on birders and families across the country to watch feeders and other areas in their yards and count the number of birds they see. Unlike the "Big Year," the goal is not to see who can count the most birds. Instead, participants in this event work together to help bird experts get a good idea of how birds are doing. Participants are given checklists and enter their sightings on a website. Called a "citizen-science" project, this event is open to anyone, requires no travel, and happens every year over one weekend in February.What is the main point of the paragraph that begins "This honesty comes from" in "A Big Year"? A "Big Year" offers many rewards beyond winning. Beautiful and amazing birds are worthy of searching out. Birds come in many shapes and colors. Breaking records tends to keep people honest. Find the value of k.In triangle ABC, the midpoints of the sides AB, BC and AC are P(2, 3), Q (3,5) and R(-4, 4) respectively. Find the coordinates of A, B and C. solve for x and y simultaneously:(3x-9y)+(x+15)=0 calculate the height/base Need help asap question is in the picture Write the unbalanced chemical equation for the following reaction:nitrogen + hydrogen produces ammonia (NH3) Help please :) I dont understand which of these has been a major development in global trade since the 1900s What is the role of each of the following types of organisms in an ecosystem? Pythagorean Theorem is what this is on Using what you just observe, explain why clouds and precipitation contain freshwater even though much of the water vapor comes from oceans and seas