- What mass of sulfur trioxide is formed and what is the limiting reactant? Please show all of your calculations so I can understand, please and thank you?

Answer:

What is the hydrogen ion concentration of a solution labeled "Solution A", whose pH is 5.60? 

Tutorial

In this problem we are given pH and asked to solve for the hydrogen ion concentration. Using the equation, pH = − log [H+] , we can solve for [H+] as,

− pH = log [H+] ,

[H+] = 10−pH,

by exponentiating both sides with base 10 to "undo" the common logarithm. The hydrogen ion concentration of "Solution A" is,

[H+] = 10−5.6 ≈ 0.0000025 = 2.51 × 10−6 M.

We can always check our solution by computing −log (2.5 × 10−6) ≈ 5.6.

Answer:

it is determined from known oxidation states of other elements

At STP

So

Apply Boyles law

Answer:

is agriculture that makes healthy food,healthy soil,healthy plants and healthy environments a priority,along with crop productivity

Answer:

An exothermic reaction is happening, it is absorbing the cold.

Isopropanol burns in oxygen to yield carbon dioxide, water, and heat. the word equation that best represents this chemical reaction is isopropanol oxygen ---> carbon dioxide + water + heat. Option C. This is further explained below.

Generally, A chemical reaction is simply defined as a process that converts compounds known as reactants into distinct substances, known as products.

In conclusion, In the presence of oxygen, isopropanol burns to produce carbon dioxide, water, and heat. This chemical reaction is best represented by the word equation isopropanol oxygen= Carbon dioxide + water + heat

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Answer:

C: isopropanol + oxygen -> carbon dioxide + water + heat

The boiling point of hydrocarbons generally increases as the size of the molecules increases because more bonds are needs to be broken in larger organic molecules.

Hydrocarbons are organic compounds which here composed of hydrogen and carbon alone.

Hydrocarbons are grouped into families or homologous series based on a reactive group known as the gincyiial group

The homologous series include

The boiling point generally increases as the size of the molecules increases because more bonds are needs to be broken in larger organic molecules.

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Answer:

Hess’s Law describes how the __Heat__ energy of a reaction consists of the _Enthalpy__ of the energy changes of the individual step reactions

Explanation:

Hess law is a legendary law which is given by

[tex]\\ \rm\Rrightarrow ∆H_{net}=\sum \delta H_r[/tex]

This is because convection is energy transfer by currents of moving liquid or gas.

Heat transfer by convection is the transfer of heat from one place to another due to the movement of fluid.

When cooking in a convection oven, for best results you place your food in the center of the oven, this is because convection is energy transfer by currents of moving liquid or gas.

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This is because convection is a type of energy transfer by currents of moving liquid or gas (Option A).

Convection is a physical natural phenomenon associated with energy transfer through a fluid.

In convection, a suitable fluid that produces what transfer can be for example air and/or water.

In conclusion, this is because convection is energy transfer by currents of moving liquid or gas (Option A).

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Answer:

According to the equation below salt is produced by BaH2s

Answer:

I think b is the correct answer

Currently, fossil fuels meet the 80% of needs of the society. But it is a non-renewable source, and it will extinct soon. The leading renewable source is wind power.

Non-renewable energy are the energies that will require a thousand of years to make and ones extinct, will not be prepared.

Renewable energy sources can be prepared again and again, examples are wind, solar, hydropower.

Thus, the fossil fuel and wind power is the leading source of energy that meets the needs of society.

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Balanced equation(That should be NaClO_3)

[tex]\\ \rm\Rrightarrow Cl_2+2NaOH\longrightarrow NaCl+NaClO_3+H_2O[/tex]

Remember that it's a ionic equation not general equation

So

We have to balance it accordingly

Answer:

Balanced equation(That should be NaClO_3)

\begin{gathered}\\ \rm\Rrightarrow Cl_2+2NaOH\longrightarrow NaCl+NaClO_3+H_2O\end{gathered}⇛Cl2+2NaOH⟶NaCl+NaClO3+H2O

Remember that it's a ionic equation not general equation

So

We have to balance it accordingly

Answer:

c.

Explanation:

The oldest insect fossil has been proposed to be Rhyniognatha hirsti, estimated to be 400 million years old, but the insect identity of the fossil has been contested. Global climate conditions changed several times during the history of Earth, and along with it the diversity of insects.

Answer:C

Explantion:This is The oldest insect fossil has been proposed to be Rhyniognatha hirsti, estimated to be 400 million years old

Answer:

C but read the limitation

Explanation:

Gold sample

Color wouldn't tell you much. In fact it may fool you. Fool's Gold is the same color as gold.

Gold is very malleable. That's what hitting gold with a hammer will do.  It tends to shape the gold without destroying it into lots of pieces. A lot of yellow things have that property.

If only it was that simply. Yes if you are sure there is gold in that location. You have to pick this answer, because the other 2 don't work. So this is possible, but not the best way. The best way is to subject the sample to chemical treatment. If you are left with a yellow sample, then you could make the case for it being gold.

Answer:

About 0.054 moles.

Explanation:

Apply the ideal gas law. Recall that:

[tex]\displaystyle PV = n RT[/tex]

Solve for n, the number of moles:

[tex]\displaystyle n = \frac{PV}{RT}[/tex]

Determine the pressure of the hydrogen gas. Recall that by Dalton's Law of Partial Pressures, the total pressure is equal to the sum of the partial pressures of each individual gas:

[tex]\displaystyle P_T = P_\ell + P_\text{H$_2$}[/tex]

Convert the vapor pressure of the liquid to atm (1.00 atm = 760. torr):

[tex]\displaystyle 18\text{ torr} \cdot \frac{1.00\text{ atm}}{760.\text{ torr}} = 0.024\text{ atm}[/tex]

Therefore, the partial pressure of the hydrogen gas is:

[tex]\displaystyle \begin{aligned} P_T & = P_\ell + P_\text{H$_2$} \\ \\ (0.788\text{ atm}) & = (0.024\text{ atm}) + P_\text{H$_2$} \\ \\ P_\text{H$_2$} & = 0.764\text{ atm}\end{aligned}[/tex]

Therefore, the number of moles of hydrogen gas present is (the temperature in kelvins is 273.15 + 20.0 = 293.2 K):

[tex]\displaystyle \begin{aligned} n & = \frac{PV}{RT} \\ \\ & = \frac{(0.764\text{ atm})(1.7\text{ L})}{\left(0.08206 \text{ }\dfrac{\text{L-atm}}{\text{mol-K}}\right)(293.2\text{ K})}\\ \\ & = 0.054\text{ mol H$_2$} \end{aligned}[/tex]

The total pressure of the mixture of the nobles gases in the container is determined as 9 atm.

The total pressure of the gasses is equal to the total pressure of the container.

Pt = P1 + P2 + P3

Pt = 1 atm (neon) + 2 atm (Argon) + 6 atm( xenon)

Pt = 9 atm

Thus, the total pressure of the mixture of the nobles gases in the container is determined as 9 atm.

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Answer:

A physical change is when something changes on the inside, but it does not change what it is made of.

Answer:

speed = wavelength × frequency

wavelength = Speed/frequency

wavelength = 2.998 x 10^8 m/s ÷ 6.1 x 10^9 Hz

wavelength = 0.049m

Answer:

cloths/sponges can harbor harmful pathogens and spread germs if not cleaned frequently. A damp, smelly dish cloth/sponge is telling you germs are multiplying!

Explanation:

hope this is able to help you :)

The option that would lead to the formation of precipitation, release of energy or change in color  is : Chemical change

Chemical changes leads to the formation of precipitate in the form of bubbles, release of energy or change in color for example :

Hence we can conclude that The option that would lead to the formation of precipitation, release of energy or change in color  is : Chemical change

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Answer:

increases the H + ion concentration in aqueous solution

Explanation:

An Arrhenius base is a compound that increases the OH − ion concentration in aqueous solution. Arrhenius theory, theory, introduced in 1887 by the Swedish scientist Svante Arrhenius, that acids are substances that dissociate in water to yield electrically charged atoms or molecules, called ions, one of which is a hydrogen ion (H+), and that bases ionize in water to yield hydroxide ions (OH−). Arrhenius Definition of acids. An acid is a substance that dissociates in water to produce H+ (hydrogen ions) Arrhenius Definition of strong acids. A strong acid is a substance that fully dissociates in water to give hydrogen ions. Arrhenius Definition of weak acids.

Answer:

The molarity of 2.0 liters of an aqueous solution that contains 0.50 mol of potassium iodide is 0.25M.HOW TO CALCULATE MOLARITY:The molarity of a solution can be calculated by dividing the number of moles by its volume. That is;Molarity = no. of moles ÷ volumeAccording to this question, 2.0 liters of an aqueous solution that contains 0.50 mol of potassium iodide. The molarity is calculated as follows:Molarity = 0.50mol ÷ 2LMolarity = 0.25MTherefore, the molarity of 2.0 liters of an aqueous solution that contains 0.50 mol of potassium iodide is 0.25M.Learn more about molarity at: brainly.com/question/2817451

Explanation:

Mark me brainliest please!!! I spent a lot of time on this!!

The structure that corresponds to the molecule name - 4-heptanol would be option A.

The name, 4-heptanol, indicates that there are 7 carbon atoms in the structure.

In addition, there is also an indication that there is a functional group on the 4th carbon - the alcohol functional group.

Option B has only 6 carbon atoms instead of 7. Option A, on the other hand, fulfills all the criteria.

Thus, A is the correct structure of 4-heptanol.

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Answer:

c) Sodium chloride

Let's see

[tex]\\ \rm\dashrightarrow k=\dfrac{Concentration\:of\: products}{Concentration\:of\: reactants}[/tex]

[tex]\\ \rm\dashrightarrow k=\dfrac{\left[A_2B_2\right]}{\left[A\right]^2\left[B\right]}[/tex]

Some applications of fission reactions are as a zero-waste energy source for generating large amounts of heat and as the energy source in nuclear weapons.

Nuclear fission reactions are reactions in which the nucleus of heavier atoms are split into two or more atoms of smaller nucleus with the release of energy and radiation.

Some of the applications of fission reactions are as a zero-waste energy source for generating large amounts of heat and as the energy source in nuclear weapons.

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