Determine all possible mole ratios for the following balanced chemical equations

4Al(s) + 3O2(g) = 2Al2O3(s)
3Fe(s) + 4H20(l) = Fe3O4(s) + 4H2(g)
2HgO(s) = 2Hg(l) + O2(g)​

Answer: well there is a lot of examples that can be used but i feel like a good answer will be a flower peddle once broken its still a peddle but its either larger or smaller than what it originated. another example can be a tree. you can have many trees that are huge in size or you can have small ones. once snapped in half it will still be a tree but the size of the tree will not remane the same but it will still be a tree through and through

Explanation:

Answer:

Explanation:

Density of a substance can be found by using the formula

From the question

Density = 11.35 g/cm³

mass of iron = 1.1 g

To find the volume substitute the values into the above formula and solve for the volume

That's

Making volume the subject we have

So we have

= 0.096916

We have the final answer as

Hope this helps you

The heat energy teaspoon of boiling water and a swimming pool full of room temperature water then swimming pool have more heat energy than the teaspoon of boiling water

Heat energy is the result of movement of tiny particles called as atom, molecule, or ion in solid liquid and gases and heat energy is the transfer from one object to the another and in Celsius scale water freezes at 0°C and boil at 100°C to 90°C however the swimming pool contains a lot more water therefore the pool has more thermal energy than the cup of tea even though the tea is hotter than the water in the pool that's why heat energy is more in the swimming pool then in teaspoon of boiling water

Know more about heat energy

https://brainly.com/question/29210982

#SPJ1

Scientists believe that most of the outgassed water vapor on Venus was broken down into hydrogen and oxygen by ultraviolet (UV) radiation from the Sun.

The hydrogen would then have escaped to space, leaving behind the oxygen to react with other elements in the planet's atmosphere. This process is known as photodissociation. Venus has a weak magnetic field and lacks a protective ozone layer, making it vulnerable to the ionizing effects of UV radiation.

As a result, the water vapor in its upper atmosphere is subjected to this process of photodissociation, which breaks it down into its constituent elements.

Learn more about Venus here:- brainly.com/question/30391233

#SPJ11

Answer:

The Dog

Explanation:

The more mass something has the more kinetic energy it has in it.

Answer:

Number 3

Explanation:

Answer:

1. Carbon Dioxide

2. Carbon Monoxide

3. Carbonic Acid

Explanation:

a) The melting point of mercury at 10 bar is -118.8°C.

b) The melting point of mercury at 3540 bar is -49.5°C

The melting point of mercury at different pressures can be calculated using the Clausius-Clapeyron equation:

ln(P2/P1) = -ΔHfus/R (1/T2 - 1/T1)

where P1 and T1 are the pressure and temperature at which the heat of fusion is known (1 bar and -38.87°C, respectively), P2 is the new pressure, T2 is the new melting point temperature, ΔHfus is the heat of fusion, R is the gas constant, and ln is the natural logarithm.

We can rearrange this equation to solve for T2:

T2 = (ΔHfus/R) * (ln(P2/P1)/(-1/T1)) + 1/T1

Substituting the given values, we get:

(a) For P2 = 10 bar:

T2 = (9.75 J/g / (8.314 J/(mol*K))) * (ln(10 bar/1 bar) / (-1 / ( -38.87°C + 273.15))) + (1 / (-38.87°C + 273.15))

T2 = 155.3 K = -118.8°C

Therefore, the melting point of mercury at 10 bar is -118.8°C.

(b) For P2 = 3540 bar:

T2 = (9.75 J/g / (8.314 J/(mol*K))) * (ln(3540 bar/1 bar) / (-1 / ( -38.87°C + 273.15))) + (1 / (-38.87°C + 273.15))

T2 = 223.6 K = -49.5°C

Learn more about The Clausius-Clapeyron: https://brainly.com/question/13162576

#SPJ11

Answer:

P.E = 3.675  J

Explanation:

Given data:

Height of table = 0.75 m

Mass of book = 0.5 kg

Potential energy = ?

Solution:

Formula:

P.E = mgh

g =acceleration due to gravity =  9.8 m/s²

by putting values,

P.E = 0.5 kg× 9.8 m/s² ×0.75 m

P.E  = 3.675 kgm²/s²

J = kgm²/s²

P.E = 3.675  J

Answer:

\(\boxed {\boxed {\sf 3.675 \ Joules}}\)

Explanation:

Gravitational potential energy can be found using the following formula.

\(E_p=m*g*h\)

Where m is the mass, g is the gravitational acceleration, and h is the height.

The mass of the book is 0.5 kilograms. The acceleration due to gravity on Earth is 9.8 m/s². The height of the book is 0.75 meters.

\(m= 0.5 \ kg \\g= 9.8 \ m/s^2 \\h= 0.75 \ m\)

Substitute the values into the formula.

\(E_p=(0.5 \ kg)(9.8 \ m/s^2)(0.75 \ m)\)

Multiply.

\(E_p=(4.9 \ kg*m/s^2)(0.75 \ m)\)

\(E_p=(4.9 \ N)(0.75 \ m)\)

\(E_p=3.675 \ N*m\)

\(E_p=3.675 \ J\)

The book has 3.675 Joules of gravitational potential energy.

Answer:

There are legal and ethical restrictions regarding human cloning.

Explanation:

Answer:

Scientists clone banana plants and not humans because there are legal and ethical restrictions regarding human cloning.

\(hope \: this \: helped \: you \: \)

Answer:

V = L × w × h

V = 5 × 7 × 9

V = 315 cm³

Everyday, save water. Reduce the length of your showers, patch any leaks, and switch off the flow when you're not using it. Instead of disposing of hazardous household chemicals into the drain, transport them to the a hazardous waste facility. Use resilient plants in your yard that require little to no watering, fertilizer, or pesticides.

Arthropods, including insects, are killed by insecticides. Mites can feed on both plants and animals are eliminated with miticides, also known as acaricides. Microorganisms known as microbial pesticides can kill, prevent, or outcompete pests like insects or even other microorganism pests.

Pesticides can have both acute, or short-term, negative health impacts, and chronic, or long-term, consequences, which can develop years or months after exposure. Examples of immediate health consequences include eye stinging, blisters, rashes, blindness, nausea, lightheadedness, diarrhea, and even death.

To know more about pesticides visit:

https://brainly.com/question/29461682

#SPJ1

Answer: The answer is : using a broom, and picking up litter  and pet waste.

Explanation: I just took the test and got a 100%,! that was my answer.

According to the bohr model of the atom, the single electron of a hydrogen atom circles the nucleus is specific allowed orbits.

To learn more about Gravitational refer to:

https://brainly.com/question/27943482

#SPJ4

At the \(AgNO_3\) electrode, silver is deposited at the anode, and hydrogen gas is evolved at the cathode, while the solution becomes basic due to the formation of hydroxide ions. At the \(CuSO_4\) electrode, copper is deposited at the anode, and hydrogen gas is evolved at the cathode.

1 - \(AgNO_3\):

\(AgNO_3\) is an electrolyte that dissociates into ions when dissolved in water. The dissociation reaction for \(AgNO_3\) is:

\($\text{AgNO}_3 (\text{aq}) \rightarrow \text{Ag}^+ (\text{aq}) + \text{NO}_3^- (\text{aq})$\)

At the anode (positive electrode), oxidation occurs, which means electrons are lost. In this case, the silver ions (Ag+) from the solution are attracted to the anode, where they receive electrons to become neutral silver atoms (Ag). The oxidation half-reaction is:

Ag+ (aq) + e- → Ag (s)

At the cathode (negative electrode), reduction occurs, which means electrons are gained. In this case, the nitrate ions (\($\text{NO}_3^-$\)) from the solution are attracted to the cathode, where they give up electrons to become neutral nitrogen and oxygen atoms. The reduction half-reaction is:

\($2\text{H}_2\text{O} (\text{l}) + 2\text{e}^- \rightarrow \text{H}_2 (\text{g}) + 2\text{OH}^- (\text{aq})$\)

The overall reaction is the sum of the oxidation and reduction half-reactions:

\($2\text{Ag}^+ (\text{aq}) + 2\text{H}_2\text{O} (\text{l}) + 2\text{e}^- \rightarrow 2\text{Ag} (\text{s}) + \text{H}_2 (\text{g}) + 2\text{NO}_3^- (\text{aq}) + 2\text{OH}^- (\text{aq})$\)

Thus, at the anode, silver is deposited onto the electrode, while at the cathode, hydrogen gas is evolved and the solution becomes basic due to the formation of hydroxide ions (OH-).

2 - \(CuSO_4\):

\(CuSO_4\) is an electrolyte that dissociates into ions when dissolved in water. The dissociation reaction for \(CuSO_4\) is:

\($\text{CuSO}_4 (\text{aq}) \rightarrow \text{Cu}^{2+} (\text{aq}) + \text{SO}_4^{2-} (\text{aq})$\)

At the anode (positive electrode), oxidation occurs, which means electrons are lost. In this case, the copper ions (Cu2+) from the solution are attracted to the anode, where they receive electrons to become neutral copper atoms (Cu). The oxidation half-reaction is:

\($\text{Cu}^{2+} (\text{aq}) + 2\text{e}^- \rightarrow \text{Cu} (\text{s})$\)

At the cathode (negative electrode), reduction occurs, which means electrons are gained. In this case, the water molecules (\(H_2O\)) from the solution are attracted to the cathode, where they give up electrons to become hydroxide ions (OH-). The reduction half-reaction is:

\($2\text{H}_2\text{O} (\text{l}) + 2\text{e}^- \rightarrow \text{H}_2 (\text{g}) + 2\text{OH}^- (\text{aq})$\)

The overall reaction is the sum of the oxidation and reduction half-reactions:

\($\text{Cu}^{2+} (\text{aq}) + 2\text{H}_2\text{O} (\text{l}) + 2\text{e}^- \rightarrow \text{Cu} (\text{s}) + \text{H}_2 (\text{g}) + \text{SO}_4^{2-} (\text{aq}) + 2\text{OH}^- (\text{aq})$\)

Thus, at the anode, copper is deposited onto the electrode, while at the cathode, hydrogen gas is evolved and the solution becomes basic due to the formation of hydroxide ions (OH-).

To learn more about electrodes

https://brainly.com/question/17060277

#SPJ4

Complete question:

Using equations explain each of the observations made at each electrode

1 - \(AgNO_3\)

2 - \(CuSO_4\)

When dissolved in a solvent, an electrolyte separates into ions and has the ability to conduct electricity, whereas a nonelectrolyte does not separate into ions and has neither of these properties.

The descriptions and classifications for the substances are as follows NaOH(s) - Nonelectrolyte HCl(aq) - Electrolyte C6H12O6(aq) - Nonelectrolyte (since it is not dissolved in a solvent) Electrolyte KNO3(aq), nonelectrolyte CH3OH(aq), and electrolyte NH3(aq) (to a limited extent due to its weak base nature) Water is an electrolyte and MgCl2(aq) is an electrolyte. It should be noted that a material's behavior in a solution determines whether it is an electrolyte or a nonelectrolyte, and the same chemical can act in a variety of ways depending on the solvent employed.

learn more about  electrolyte here:

https://brainly.com/question/29771118

#SPJ4

Chemoautotrophs use inorganic chemicals as an energy source and carbon dioxide as a carbon source.

Chemoautotrophs are autotrophs that obtain their energy from chemical compounds rather than from sunlight. They generate their own food by using energy from inorganic substances like sulfur, ammonia, or ferrous iron in a process called chemosynthesis.

They are mainly found in harsh environments such as volcanic vents or deep-sea vents, where photosynthesis is not possible because there is no sunlight to drive the reaction.

Energy sources are substances or processes that provide energy for a given system. Chemical, thermal, and electromagnetic energy sources are the most common forms of energy sources.

Carbon is an element that is essential to all life forms. Carbon is a building block of most organic molecules, including carbohydrates, lipids, proteins, and nucleic acids, which are the essential components of life.

A carbon source is an essential element for the growth of living organisms. It is a nutrient that is necessary for the synthesis of organic molecules that make up living organisms, such as carbohydrates, lipids, proteins, and nucleic acids.

Chemoautotrophs use inorganic compounds such as ammonia, sulfur, or ferrous iron as an energy source to produce organic molecules from carbon dioxide and water. As a result, chemoautotrophs are the primary producers of food in ecosystems where photosynthesis is not feasible, and their existence is critical to the survival of other living organisms.

To know more about chemoautotrophs refer here:

https://brainly.com/question/28515929#

#SPJ11

Answer:

\(volume = \frac{mass}{density} \\ \)

Answer: Its a weak base

Explanation: Clicked on that and got the answer right. :)

The image that has been shown has helped us to know that the particles are weak bases. Option A

A chemical species or substance that has a restricted capacity to receive or interact with protons (H+ ions) in a solution is said to be a weak base. Weak bases only partially ionize or interact with water, in contrast to strong bases, which totally breakdown into ions in water and quickly take protons.

Compared to strong bases, weak bases have a lesser affinity for protons and fewer alkaline characteristics. They are frequently identified by the considerably lower concentration of hydroxide ions (OH-) in a solution and their imperfect dissociation equilibrium.

Learn more about weak base:https://brainly.com/question/28246086

#SPJ1

Hence, in order to create 87.5 g of water, we require 77.5 g of oxygen gas.

Exothermic means that the reaction between hydrogen and oxygen releases energy into the environment. water is produced when hydrogen and oxygen are combined. 2hydrogen + oxygen → water Fuel cells generate electricity through the reaction of a fuel and oxygen.

The equation must be balanced by adding a 2 coefficient to the left-hand side:  2hydrogen + oxygen → water

We can see from the equation that it is balanced that 1 mole of O2 reacts with 2 moles of water. The amount of moles of water created can be determined using the molar mass of water:

87.5 g water / (18.02 g/mol water) = 4.858 mol water

Hence, for the water to react, we just need half as many moles of oxygen:

4.858 mol water x (1 mol oxygen/2 mol water) = 2.429 mol oxygen

Finally, we may get the required mass of oxygen by using its molar mass:

2.429 mol oxygen x (32.00 g/mol oxygen) = 77.5 g O₂

To know more about oxygen visit:-

https://brainly.com/question/14386958

#SPJ1

It measure the number of elementary entities of a given substance that are present in a given sample. 1.99 moles of glucose are present in 1.2 x 10²⁴  molecules.

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity of amount of substance. The stoichiometry represents the number of moles. Mole is directly proportional to the number of given molecules.

Given number of atoms= 3.01x10²³atoms

we know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number.

mole of glucose =given number of molecules of glucose ÷ 6.022×10²³(Avogadro number)

Substituting the values, we get

mole of glucose= 1.2 x 10²⁴÷6.02 x 10²³

mole of glucose= 1.99 moles

Therefore, 1.99 moles of glucose are present in 1.2 x 10²⁴  molecules.

To know more about mole, here:

https://brainly.com/question/15209553

#SPJ2

Answer:

Explanation:

A symbolic way to show a chemical reaction is a chemical equation.

A chemical equation is a symbolic representation of all of the substances involved in a chemical reaction.

Answer:

\(\boxed {\boxed {\sf 56 \ Joules}}\)

Explanation:

We are given the mass, specific heat, and temperature, so we must use this formula for heat energy.

\(q=mc \Delta T\)

The mass is 5 grams, the specific heat capacity is 0.14 Joules per gram degree Celsius. Let's find the change in temperature.

We know the variables and can substitute them into the formula.

\(m= 5 \ g \\c= 0.14 \ J/ g \ \textdegree C \\\Delta T= 80 \ \textdegree C\)

\(q= (5 \ g )( 0.14 \ J/ g \ \textdegree C ) ( 80 \ \textdegree C)\)

Multiply the first numbers. The grams will cancel.

\(q= 0.7 \ J/ \textdegree C(80 \ \textdegree C )\)

Multiply again. This time the degrees Celsius cancel.

\(q= 56 \ J\)

56 Joules of heat are needed.

Acetylsalicylic acid, is the active ingredient in aspirin. 68 is the number of valence electrons are present in the lewis structure for this molecule.

A valence electron is an electron that is part of an atom's outer shell in chemistry and physics. If the outer shell is open, the valence electron can take part in the formation of a chemical bond. Each atom in the bond contributes one valence electron, forming a shared pair in a single covalent bond. The chemical properties of an element, such as its valence—whether it can connect with other elements and, if so, how quickly and with how many—may be affected by the existence of valence electrons.

C =4 valence electrons.

H = 1 valence electron.

O=6 valence electrons.

9 C x 4 valence electrons = 36 valence electrons

8 H x 1 valence electron = 8 valence electrons

4 O x 6 valence electrons = 24 valence electrons

Total valence electrons = 36 + 8 + 24 = 68

To know more about valence electron, here:

https://brainly.com/question/31264554

#SPJ12

Williams Field experiences short, chilly summers, lengthy, chilly, snowy, windy winters, with seasonal partial cloudiness. The average annual temperature ranges from -20°F to 32°F, with occasional exceptions when it falls below -32°F or rises beyond 37°F.

Climatic conditions at Williams Field

From November 23 to February 7 is the warm season, which lasts 2.5 months and has an average daily high temperature of more than 24°F. Williams Field experiences its warmest weather in January, with an average high temperature of 31°F and low temperature of 23°F.

The average daily high temperature during the 5.3-month cold season, which runs from April 19 to September 28, is below -2°F. With an average low of -20°F and a high of -10°F, August is the coldest month of the year at Williams Field.

To learn more about Williams Field

https://brainly.com/question/29511192

#SPJ1

Answer: See explanation

Explanation:

1. Separation of charges in an object without touching it is (charging by induction).

2. The work done moving a positive test charge between two points in an electric field divided by the magnitude of the test charge is the electric (potential difference).

3. An electric (conductor) is a material through which charges move about easily. (Charging by conduction) is giving a neutral object a charge by touching it with a charged object.

4. A material through which electrical charges does not move easily is an electrical (insulator).

5. The lines providing a picture of the size and strength of the field around a charged object are called the (electric field lines).

6. The property of the space around a charged object that exerts a force on other charged objects is the (electric field).

7. A device that helps determine charge using pieces of metal foil is an (electroscope).

8. The magnitude of the charge of an electron is the (elementary charge)

The partial pressure of nitrogen in the gas mixture is 0.875 atm.

We can use Dalton's Law of partial pressures to find the partial pressure of nitrogen. Here's a step-by-step explanation:
1. Calculate the fraction of nitrogen in the gas mixture:
Fraction of nitrogen = 78% (nitrogen) / 100% (total)
Fraction of nitrogen = 0.78
2. Multiply the fraction of nitrogen by the total pressure to find the partial pressure of nitrogen:
Partial pressure of nitrogen = Fraction of nitrogen × Total pressure
Partial pressure of nitrogen = 0.78 × 1.12 atm
3. Calculate the partial pressure of nitrogen:
Partial pressure of nitrogen ≈ 0.87 atm
So, the partial pressure of nitrogen in the gas mixture is approximately 0.87 atm (rounded to two significant figures).

learn more about nitrogen Refer: https://brainly.com/question/10260456

#SPJ11

complete question:

gas mixture contains 78% nitrogen and 22% oxygen. if the total pressure is 1.12 atm, what is the partial pressure of nitrogen?Express your answers in atmospheres to two significant figures.

The atomic number of this atom is 3.

Atomic Number =Number of Protons .

Here protons=3, Neutrons=4 and Electrons=3. So, The atomic number of this atom is 3.

The charge number of an atomic nucleus is the chemical element's atomic number, also known as nuclear charge number (symbol Z). This is equivalent to the proton number (np), or the number of protons present in the nucleus of each atom of that element, for conventional nuclei.

Ordinary chemical elements can be uniquely identified by their atomic number. The atomic number and the number of electrons are both equal in a regular, uncharged atom.

The atomic mass number A of a regular atom is calculated by adding its neutron number N and neutron number Z. Since the mass of electrons is negligible for many uses, protons and neutrons have roughly equal masses, thus the mass defect of a nucleon.

To learn more about Atomic Number refer to:

brainly.com/question/1805828

#SPJ1

Answer: things that dissolve in water is Salt, Sugar, Vinegar, Coffee, and Lemon Juice.

Explanation: