How do scientists know a reaction in dynamic equilibrium hasn't just stopped?

Answers

Answer 1

Answer:

any reaction will be in dynamic equilibrium if it's reversible and the rates of the forward and reverse reactions are equal.

Explanation:

say that you prepare a solution that is saturated with an aqueous solution of NaCl


Related Questions

What is the molar mass of Zn(NO3)2 ?

Answers

Answer:

molar mass of zn( no3) 2

is 189.36 g/ mol

Yess ss that is the answer have a nice day and good luck

A full moon is observed every...
A. 2 weeks.

B. 24 hours.

C. 29.5 days.

D. 365 days
correct=brainliest

Answers

Answer:

C

Explanation:

Can someone help me please

Answers

True, False , and I think the last one is true

Hey I'm Chloe Can you Help me Thanks.
Name 5 different foods with carbohydrates.

Answers

Macaroni, Bagel, Protien Bar, Tortilla Chips, and Chicken
Soft pretzels, cereal bars, cake with frosting, canned fruits, and corn chips

Which combination of carboxylic acid and alcohol produces this ester?

Answers

your answer is a b and c

What is the mass of a 5.00 cm^3 piece of copper having a density of 8.96 g/cm^3

Answers

Answer:

44.8 g

Explanation:

Density = mass / Volume

Mass = density x Volume = 8.96x 5 = 44.8 g

What is the molality of a solution of 0.25 moles of sucrose in dissolved in enough water to make 4.00 liters of water?

Answers

I am going to say 100

Which mass is made up of 6.02x10^23 atoms? none of these 23 g sodium 42 g krypton 24 g carbon 78 g potassium

Answers

Answer:

23 g sodium

Explanation:

In chemistry, one mol (1mol) of a substance equals Avagadro's number or constant (6.02 × 10^23 atoms/particles/molecules).

According to this question in which the mass of different elements were given, the mass of the element that equals 6.02 × 10^23

Using the formula; mole = mass/molar mass

- Sodium = 23g/23g/mol = 1mol

- Krypton = 42g/84g/mol = 0.5mol

- Carbon = 24g/12g/mol = 2mol

- Pottasium = 78g/39g/mol = 2mol

Therefore, from the above illustration, it can be observed that only 23g of sodium contains 1 mol, hence, 23g sodium contains 6.02 × 10^23 atoms.

A closed flask contains gas at STP. If the temperature is raised to 400 K what will the pressure be in atm?

Answers

Answer:

The answer is 1.5 atm

Explanation:

What is radiation exactly

Answers

radiation is energy that comes from a source. (travels through the speed of light)

Radiation is energy that comes from a source and travels through space at the speed of light. This energy has an electric field and a magnetic field associated with it, and has wave-like properties. You could also call radiation “electromagnetic waves”.

Will there ever be grams of a limiting reactant remaining after a reaction has stopped? Why or why not?

Answers

Assuming the reaction is complete, there should be no limiting reactant remaining after a reaction. This is because the limiting reactant, by definition, is "the reactant that is completely used up in a reaction."

The reaction Ni(s) + S(s) --> NIS(s) is an example of which type of reaction?

Answers

?????????????????????????.

A sample of helium gas has a volume of 620. Ml at a temp of 500 K. If we decrease the temperature to 100K while keeping the pressure constant what will the new volume be?

Answers

Answer:

A sample of helium gas has a volume of 620mL at a temperature of 500 K. If we ... to 100 K while keeping the pressure constant, what will the new volume be?

Explanation:

A sample of helium gas has a volume of 620. Ml at a temp of 500 K. If we decrease the temperature to 100K while keeping the pressure constant 124 ml will the new volume be.

What is volume ?

Volume is a measurement of three-dimensional space that is occupied. It is frequently expressed quantitatively using SI-derived units, as well as several imperial or US-standard units. Volume and the notion of length are connected.

The capacity of an object is measured by its volume. For instance, a cup's capacity is stated to be 100 ml if it can hold 100 ml of water in its brim. The quantity of space occupied by a three-dimensional object can also be used to describe volume.

According to Charles' Law, at constant pressure,

V1 / T1 = V2 / T2

V1 = 620 ml and T1 = 500K, V2 = ? , T2 = 100K

620 ml / 500K = V2 / 100K

V2 = ( 620 ml ) ( 100K ) / 500K

Volume = 124 ml

Thus, If we decrease the temperature to 100K while keeping the pressure constant 124 ml will the new volume be.

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Why does a feather fall slower than a rubber ball? How could you make them hit
the ground at the same time?

Answers

Answer:

Galileo discovered that objects that are more dense, or have more mass, fall at a faster rate than less dense objects, due to this air resistance. A feather and a rubber ball dropped together. Air resistance causes the feather to fall more slowly, while the ball falls more fast.

A feather falls slower than a rubber ball due to weight of the objects, and air resistance.

A compound consists of 14.6% carbon and 85.4% chlorine by mass. What is its empirical formula?

Answers

Answer:

[tex]CCl_{2}[/tex]

Explanation:

When calculating an empirical formula from percentages, assume you have a 100g sample. This allows you to convert the percentages directly to grams, because X % of 100g is X grams.

So:

14.6% C = 14.6g C, 85.4%Cl = 85.4g Cl

The next step is to divide each mass by their molar mass to convert your grams to moles.

14.6g/12.01 = 1.22 mol

85.4g/35.45= 2.41 mol

Then you will divide all of your mol values by the SMALLEST number of moles. This gives you whole numbers that are the mole ratio (subscripts) of the empirical formula.

1.22 mol/1.22 mol = 1

2.41 mol/1.22 mol = 2

So the empirical formula is

[tex]CCl_{2}[/tex]

The empirical formula of the compound is CCl2.

HOW IS EMPIRICAL FORMULA CALCULATED:

Empirical formula of a compound is the smallest ratio of elements contained in that compound. The steps for calculating the empirical formula are as follows:

14.6% carbon and 85.4% chlorine by mass means the compound has 14.6g of C and 85.4g of Cl

First, we divide each mass by their respective molar mass:

C = 14.6g ÷ 12g/mol = 1.22mol

Cl = 85.4g ÷ 35.5g/mol = 2.41mol

Next, we divide each mole value by the smallest value:

C = 1.22mol ÷ 1.22 = 1

Cl = 2.41mol ÷ 1.22 = 1.97

Approximately, the carbon to chlorine ratio is 1:2, hence, the empirical formula of the compound is CCl2.

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How many moles of Iron (II) oxide are present in a 34.5 gram sample?

Answers

Answer:

0.609 Is the answer.

Explanation:

I hope this helped

Na2SO4(aq) + CaCl2(aq) --> CaSO4(s) +
2NaCl(aq) is an example of which type of
reaction?
decomposition
synthesis
single replacement
double replacement

Answers

Answer:

double replacement

Explanation:

Convert 300K to degrees Celsius.

Answers

26.85 degrees celsius

Will mark brainly
ASAP

Answers

Answer:

A. Shivering

Explanation:

This is the job of the excretory system. You remove waste as a gas (carbon dioxide), as a liquid (urine and sweat), and as a solid. Excretion is the process of removing wastes and excess water from the body. Recall that carbon dioxide travels through the blood and is transferred to the lungs where it is exhaled.

PLEASE HELP ME ON THIS QUESTION ASAP!!!!

Answers

Answer:

To support the body, protect the organs, produce blood cells, and store calcium.

On a coordinate plane, which single transformation could map point A (3,-4) onto point A' (1.5,-2)? *

Answers

Answer: A dilation with rule: [tex](x,y)\to(\dfrac12x,\dfrac12y)[/tex]

Explanation:

A dilation is a non-rigid transformation that creates an image that is the same shape as the original but has a different size.

It uses a scale factor k such that

[tex](x,y)\to(kx,ky)[/tex]

(x,y)= coordinates of original figure

(kx,ky) = corresponding coordinate in the image.

To transform: A (3,-4) onto point A' (1.5,-2).

Using scale factor k= [tex]\dfrac12[/tex], we have

[tex]A(3,-4)\to A'(\dfrac12\times3, \dfrac12\times-4)=A'(1.5,-2)[/tex]

Required rule: [tex](x,y)\to(\dfrac12x,\dfrac12y)[/tex]

help plz 8th grade science ​

Answers

Answer:

B

Explanation:

Brainlest is apprciatedddddddddddd

Which of the following is a chemical property of water at 4°C?

its temperature

its color

its ability to decompose into hydrogen and oxygen

its state


Answers

Answer:

At 4°C what is not able to decompose into hydrogen and oxygen chemical changes cannot be reverted, in this case it can. It will not change color, because water is always clear, and won't at this state turn into ice. though it can be reverted.

Explanation:

I hope that is correct that's all I've learned so far!

Answer:

A) Its temperature

Explanation:


Given the balanced equation representing a reaction:
2NO + 0, → 2NO, + energy
The mole ratio of NO to NO2 is
A)
1 to 1
B)
2 to 1
C)
3 to 2
D)
5 to 2

Answers

Im pretty sure is A i solved it all and i got 1

A container of nitrogen gashas a pressure of 256.4mm Hg at 362K. If the temperature is decreased to 251K, what is the pressure of the gas in the container?Circle the Correct Answer: (106mmHg or 178mmHg)

Answers

106mmhg or 178mmHg is the correct answer

When we put elements on the periodic table we use the______
mass.

Answers

Answer:

They are placed on the periodic table based on their atomic number.

Explanation:

In the chemistry table, you can find the molecular mass and atomic number. Atomic number represents the number of the protons of an atom, and molecular mass represents the mass of the atom. The mass of an atom is made from proton and neutron. The element is made by arranging it based on the number of protons, which was the atomic number.

Answer:

When we put elements on the periodic table we use the atomic mass

The surface temperature of a white dwarf is higher than a red supergiant. True or False

Answers

Answer:

True.

Explanation:

if you had to explain to a friend how to balance a chemical equation, what
would you say to them?

Answers

Answer:

make sure that the number of atoms on the left side of the equation equals the number of atoms on the right.

Explanation:

A chemical reaction can be balanced by multiplying each side with suitable integers such  that the number of each element in the reaction must be equal number on both side.

What is a balanced chemical equation?

According to the law of conservation of mass for  a chemical reaction, the total mass in the reactant side is equal to the total mass in the product side. Thus, a balanced chemical equation represents the perfect stoichiometry for each reactants and products.

The number of each elements in both side have to be equal in number. If they are unequal on both side, we can balance the reaction by multiplying with suitable integers.

Lets have one example. Consider the given reaction.

[tex]\rm CH_{4} + O_{2} \rightarrow H_{2}O + CO_{2}[/tex]

Here, 4 H are in left side and only 2 in right side. Similarly number of oxygen also not balanced.

The balanced equation requires a coefficient of 2 for water and 2 for oxygen in reactant thus, it can be written as:

[tex]\rm CH_{4} + 2O_{2} \rightarrow 2H_{2}O + CO_{2}[/tex]

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If you can solve both
Will mark brainly
ASAP

Answers

Answer:

1. answer is subcutaneous tissue 2. answer is spleen

Explanation:

The subcutis is also known as the hypodermis or subcutaneous layer, and functions as both an insulator, conserving the body's heat, and as a shock-absorber, protecting the inner organs.

Excretory Organs. Organs of excretion include the skin, liver, large intestine, lungs, and kidneys. Together, these organs make up the excretory system.

Answer:

the answer is Subcutaneous Tissue

Explanation:

and the second one is Intestine

HELP ASAP PLEASE 2H2+ O2 =2H2O, how many moles of water is produced if there is 10gm of O2 gas used?

Answers

Answer:

6.25 x 10^-4 moles H2O

Explanation:

moles H2O = 10 x 10^-3 g O2 x (1 mol O2/MM O2) x (2 moles H2O/ 1 mol O2) =

= (10^-2 / 32) x 2 = 6.25 x 10^-4 moles H2O

conversion factor 2moles H2O = 1 mol O2

MM O2 = 32g/mol

mass O2 = 10 mg = 10 x 10^-3 g

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