This question is about acids and bases.

Which ion is found in all acids?.
CI-
H
Nat
OH-

Answers

Answer 1

Answer:

OH- is the correct answer

mark me brainst answer

Answer 2

Answer:

h

Explanation:

The common ion in all acids is the hydrogen or hydronium ion


Related Questions

If an atom of Phosphorous has 17 neutrons, what is its mass number?
a) 31
b) 32
c) 15
D) 17

Answers

Mass number = number of protons + number of neutrons

The number of protons in the nucleus of an atom of phosphorus is equal to the atomic number of phosphorus, which is 15. If an atom of phosphorus has 17 neutrons, then the mass number would be 15 protons + 17 neutrons = 32. Thus, the correct answer choice here is B.

Write the expressions for the equilibrium constants of the reactions below.

a. N2 + 3H2 ⇌ 2NH3

b. Br2 + H2 ⇌ 2HBr

c. CO + H2O ⇌ H2 + CO2

Answers

In general, for a given chemical reaction in equilibrium

[tex]aA + bB \rightleftharpoons cC + dD[/tex]

the equilibrium constant, Keq, will be

[tex]K_{eq}=\frac{\mathrm{[C]^c}[D]^d}{\mathrm{[A]^a[B]^b}}.[/tex]

Usually, only aqueous and gaseous species are included in the equilibrium constant; the concentration of any pure solid or liquid is omitted. While the states of the reactants and products in the reactions for this problem aren't given, these three particular reactions all happen to be ones where they can (and, in fact, do) occur where all the species are in the gaseous state. So, all the reactants and product(s) are included in the equilibrium constants below, but this will not always be the case.

a.

[tex]K_{eq}=\frac{\mathrm{[NH_3]^2}}{\mathrm{[N_2][H_2]^3}}[/tex]

b.

[tex]K_{eq}=\frac{\mathrm{[HBr]^2}}{\mathrm{[Br][H_2]}}[/tex]

c.

[tex]K_{eq}=\frac{\mathrm{[H_2][CO_2}]}{\mathrm{[CO][H_2O]}}[/tex]

The equilibrium constant has to do with the value that shows the extent to which reactants are converted into products.

What is equilibrium constant?

The term equilibrium constant has to do with the value that shows the extent to which reactants are converted into products.

The following are the expressions for the equillibrium constant of each reaction;

[tex]K = [NH3]^2/[N2] [H2]^3[/tex][tex]K = [HBr]^2/[Br2] [H2][/tex][tex]K= [H2] [CO2]/[CO] [H2O][/tex]

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HELP PLS !!!!! NO LINKS

Answers

Answer:

Option aWeathering

Explanation:

Weathering is a term which describes the general process by which rocks are broken down at the Earth's surface into such things as sediments, clays, soils and substances that are dissolved in water.

As weathered products are carried away, fresh rocks are exposed to further weathering.

Answer:

melting

Explanation:

I think think helpful it is or not

A student collects 25 mL of gas at 0.98 bar. What volume would this gas occupy at 1.013 bar? * 3 points 25.8 mL 24.2 mL .09 mL 34.7 mL

Answers

Answer:

24.2 mL.

Explanation:

Assuming constant temperature, we can solve this problem using Boyle's law, which states:

P₁V₁=P₂V₂

Where:

P₁ = 0.98 barV₁ = 25 mLP₂ = 1.013 barV₂ = ?

We input the data:

0.98 bar * 25 mL = 1.013 bar * V₂

And solve for V₂:

V₂ = 24.18 mL

The closest option is the second one: 24.2 mL.

__M+__Q2----->___MQ3

Answers

Answer: 2M + 3Q2 -----> 2MQ3

Explanation:

2 Ms either side, and 6 Qs either side

Soelekekfnekeoekrdkkdekekw

The driver of an 1,840 kg race car applies the brake to come to a complete stop. If the car
accelerates at -3.4 m/s2 what is the net force acting on the race car?

a) -541 N

b) 630 N

c) -1.8 N

d) -6,256 N

Answers

The answer is A sorry if it’s wrong

Push and pull subjected to an object is called force and is given in newtons. The net force acting on the race car is -6,256 N.

What is force?

Force is the product of the mass of the object in kg and the acceleration in meters per second square. It is given by the formula:

[tex]\rm F = m \times a[/tex]

Given,

Mass of the race car = 1,840 kg

Acceleration of the race car = -3.4

Substituting values in the above equation:

[tex]\begin{aligned} \rm F &= \rm m \times a \\\\&= 1840 \times -3.4\\\\&= -6,256 \;\rm N \end{aligned}[/tex]

Therefore, option D. -6,256 N is the force acting on the car.

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pb(No3)2(aq) +2KCI(aq)---PbCl2(s)+KNO2(aq). how many grams of PbCl2 solution will react with a 0.46 L of a 0.101m KCI solution​

Answers

Answer:

6.3986g

Explanation:

The balanced chemical equation of this reaction is as follows:

Pb(NO3)2(aq) + 2KCl (aq) → PbCl2(s) + 2KNO3(aq)

In this equation, 2 moles of KCl solution will produce 1 mole of PbCl2.

To calculate the number of moles of PbCl2 produced, we use the formula:

Molarity = number of moles (n) ÷ volume (V)

0.101 = n/0.46

n = 0.046mol of KCl

If 2 moles of KCl solution will produce 1 mole of PbCl2

Then, 0.046mol of KCl will be react to produce (0.046 × 1/2) of PbCl2

0.046 × 1/2 = 0.023mol of PbCl2

To find the mass of PbCl2 using mole = mass ÷ molar mass

Molar mass of PbCl2 = 207.2 + 35.5(2)

= 207.2 + 71

= 278.2g/mol

0.023 = mass/278.2

mass = 6.3986g

Answer:

Can you help me with other question please

which deflects winds to the right or left

a) jet streams
b) land breeze
c) sea breeze
d) coriolis effect

Answers

Answer: right and what are the answers for?

Explanation:

How many rings (energy levels) will an atom with 12 electrons have?

Answers

Answer:

3

Explanation:

from the KLMN shell

K has the maximum of 2 electrons

M has the maximum of 8

M has the maximum of 18

so 12 electrons fell on M shell which is the third one

that's all....have fun

Pls help me I don’t know what to dooooo

Answers

Molarity = moles of solute/volume of solution in liters.

The solute here is NaCl, of which we have 46.5 g. To calculate the molarity of an NaCl solution, we need to know the number of moles of NaCl. To convert from grams to moles, we divide the mass by the molar mass of NaCl. The molar mass of NaCl is the sum of the atomic masses of Na and Cl: 23 amu + 35 amu = 58 amu. For our purposes, we can regard amu as equivalent to grams/mole.

(46.5 g)/(58 g/mol) = 0.8017 moles NaCl.

Now that we know both the number of moles of our NaCl solute and the volume of the solution, we can calculate the molarity:

(0.8017 moles NaCl)/(2.2 L) = 0.364 M.

Mg + HCl ➞ MgCl2 + H2

Magnesium reacts with hydrochloric acid. If 7.80 mol HCl reacts, how many grams of MgCl2 will be produced?

Answers

Answer: 371 g MgCl2

Explanation:

Balance the following chemical equation by providing the correct coefficients:
[ ]CO+[ ]H2 -> [ ]H2O + [ ]CH4
Carbon Monoxide + Hydrogen gas yields water + methane (CH4)

Answers

Answer:

CO + 3H2 -> H20 + CH4 :)) !!

What is the molarity of a solution in which 175.8
grams of NaCl is dissolved in 1.5 L of water?

Answers

175.8 g NaCl to moles:
(175.8 g)/(58.44 g/mol) = 3.008 mol NaCl

Molarity = moles of solute/volume of solution in liters

(3.008 mol NaCl)/(1.5 L) = 2.0 M.

The molarity of this solution would be 2.0 M.

Fractional distilation of liquid air usually produces nitrogen and oxygen as major products . Substance used to remove carbon iv oxide from air before its changed to liquid

Answers

Answer:

Caustic soda

Explanation:

The fractional distillation of air is carried out on liquid air. Before air is liquified, the carbon dioxide content of air is removed using caustic soda. The air is then compressed to a pressure of about 200 atm, sudden expansion of the gas leads to cooling. The process continues until air becomes liquid at  -200°C.

Fractional distillation of liquid air usually produces nitrogen and oxygen as major products. nitrogen in obtained first since it has a lower boiling point than oxygen. The gases are then dried, compressed and stored in cylinders.

A container is filled with helium gas. It has a volume of 2.25 liters and contains 9.00 moles of helium. How many moles of helium could be held in a 1.85 liter container at the same temperature and pressure. *

Answers

Hannshhsbsbsjhsbs dndjddjdhbdbdndjdkdos

Se valoró una alícuota de 10ml de HCl con NaOH AL 0.0548M de la cual se gastó 17.9ml. La concentración molar del ácido es:

Answers

Answer:

se lonh hion ffyuk jlngvn

Is a mixture with the same composition throughout


Answers

Answer:

A homogeneous mixture

Explanation:

A homogeneous mixture has the same composition throughout

What coefficients would balance the following equation?

__Al + __O2 → __Al2O3
A. 2Al + 3O2 → 1Al2O3
B. 2Al + 3O2 → 2Al2O3
C. 3Al + 3O2 → 2Al2O3
D. 4Al + 3O2 → 2Al2O3

Answers

4Al + 3O2 —> 2AL2O3
Answer is D

2 Na + Cl2 --> 2 NaCl
What is the mole ratio of sodium to sodium chloride?

Answers

Answer: The mole ratio of sodium to sodium chloride 2:2.

Explanation:

As the given reaction equation is as follows.

[tex]2Na + Cl_{2} \rightarrow 2NaCl[/tex]

Here, 2 moles of sodium reacts with 1 mole of [tex]Cl_{2}[/tex] and leads to the formation of 2 moles of NaCl.

This means that 2 moles of sodium gives 2 moles of NaCl on reaction with chlorine.

Hence, the ratio of moles of sodium to sodium chloride is 2:2.

Thus, we can conclude that the mole ratio of sodium to sodium chloride 2:2.

Balance the following chemical equation by providing the correct coefficients:
[ ]N2 + [ ]H2 -> [ ]NH3
Nitrogen + hydrogen produces ammonia (NH3)

Answers

Answer:

1 N2 + 3 H2 --> 2 NH3 :))) !!

What is the specific heat of a 22.8 g sample of metal that absorbs 1,450 Joules of heat from 21.8 degrees Celsius to 75.0 degrees Celsius?

Answers

Answer: The specific heat of given metal is [tex]1.195 J/^{o}C[/tex].

Explanation:

Given: Mass of sample = 22.8 g

Heat energy = 1450 J

Initial temperature = [tex]21.8^{o}C[/tex]

Final temperature = [tex]75^{o}C[/tex]

Formula used to calculate the specific heat is as follows.

[tex]q = m \times C \times (T_{2} - T_{1})[/tex]

where,

q = heat energy

m = mass of substance or sample

C = specific heat

[tex]T_{1}[/tex] = initial temperature

[tex]T_{2}[/tex] = final temperature

Substitute the values into above formula as follows.

[tex]q = m \times C \times (T_{2} - T_{1})\\1450 J = 22.8 g \times C \times (75 - 21.8)^{o}C\\C = \frac{1450 J}{22.8 \times 53.2^{o}C}\\= 1.195 J/^{o}C[/tex]

Thus, we can conclude that the specific heat of given metal is [tex]1.195 J/^{o}C[/tex].

Please help me with this homework

Answers

sorry can’t answer but make sure to report links

water is at 0 degrees celsius if we continue to remove energy from the water what phase changes would occur

Answers

Answer:

Solid/freezing

Explanation:

Solid has the least energy of all of the phase changes and the more energy is lost the colder its gets then water turns into a solid called ice hope i helped!

When people respond to questions saying the answer is in an attached link, is it safe?

Answers

Answer:

Personally, I believe it is unsafe. When people include a link in their answer, they are breaking the Brainly code, which states that a link to an unknown website is prohibited material.

Explanation:

Explain how the cardiovascular system helps your body function

Answers

Answer:

    The blood circulatory system (cardiovascular system) delivers nutrients and oxygen to all cells in the body. It consists of the heart and the blood vessels running through the entire body. The arteries carry blood away from the heart; the veins carry it back to the heart.

Explanation:

You're welcome!

Stay Safe!

The element cobalt displays many similarities to the element iron and is also attracted to magnets. Based on this information, is it likely that cobalt forms magnetic domains? Explain your answer.​

Answers

In ferromagnetic materials, smaller groups of atoms band together into areas called domains, in which all the electrons have the same magnetic orientation. That's why you can magnetize them. See how it works in this tutorial.

In ferromagnetic materials, smaller groups of atoms band together into areas called domains, in which all the electrons have the same magnetic orientation. That's why you can magnetize them.

What is the meaning of magnetic domains?

A portion of a ferromagnetic material where the magnetic moments are aligned with one another because of interactions between molecules or atoms.

In ferromagnetic materials, the atoms form structures called domains.

A domain is a region inside of a material where groups of magnetic moments naturally align in the same direction.

There can be numerous domains within an object.

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Which of the following is a correct statement for gases ? All of these.
Gases have a definite shape and volume.
Confined gas exerts a uniform pressure on the walls of its container in all directions.
The volume of gas is equal to the volume of the container holding the gas.

Answers

Answer:

B

Explanation:

How does the structure of Ethane (C2H6) and Propane(C3H8) differ? Are they members of a Homologous series?

Answers

Answer:

Ethane & propane are members of same homologous series : alkane which is indicated with Cn H2n+2

Explanation:

mes.
monthly
(Chp.3)
(40) The difference of squares of two numbers is 180. The square of the smaller number is 8 times the larger number. Find
the two numbers.

Answers

Question:-

The difference of squares of two numbers is 180. The square of the smaller number is 8 times the larger number. Find the two numbers.

Solution:-

Let the larger number be x

And, the square of the smaller number be 8x

ATQ ,

x² − 8x = 180

⇒ x² − 8x − 180 = 0

⇒ x² − (18 − 10)x − 180 = 0

⇒ x² − 18x + 10x − 180 = 0

⇒ x (x − 18) + 10(x − 18) = 0

⇒ (x − 18) (x + 10) = 0

⇒ x − 18 = 0, x + 10 = 0

⇒ x = 18, x = −10

⇒ x = −10, 18

[tex] \therefore [/tex] Either, x = −10 and x = 18

x = 18 (Positive value)

Now, the square of the smaller number = 8x = 8 × 18 = 144

So, the square of the smaller number = [tex]\sqrt{144} [/tex] = 12

The two numbers are 18 and 12. [Answer]

According to the Law of Conservation of Energy, energy ______.

Answers

Energy cannot be created or destroyed, but transferred from one object to another or transformed from one object into another
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