A rectangular solid has a length of 3 cm a height of 4 cm and a width of 5 cm what is the solid volume ?

1. 7.53 x 10^23 moles of neon.

2. 6.31 x 10^24 atoms of tungsten is equal to 1 mole of tungsten.

3. In 54 grams of water, there are approximately 4.5 x 10^23 atoms of hydrogen.

4. How many grams are in 12.3 moles of dinitrogen pentoxide?

5. The molar mass of carbon dioxide is 44.01 g/mol.

6. Aluminum oxide has a molar mass of 101.96 g/mol. Therefore, 0.87 moles of aluminum oxide would be 87.17 g.

7. At STP (standard temperature and pressure), 6 L of hydrogen gas contains 0.024 moles of hydrogen.

8. At STP, 10.26 moles of neon will occupy a volume of 24.03 liters.

9.

No, a human is not at risk of a reaction if they were stung with a 0.00056-gram amount of histamine. 0.00056 grams of histamine is only 8.64 x 1010 molecules, which is far less than the threshold of 3.4 x 1015 molecules necessary to cause a reaction.

10. MgS2O6

i gotchu bro here you go

Answer:

a solid has definite volume and shape, a liquid has definite volume but no definite shape, and a gas has neither a definite volume nor shape the change from solid to liquid usually does not significantly change the volume of a substance

The half-life of the radioisotope, calculated based on the given information that after ten years only 75 grams remain from an initial 100 grams, is approximately 28.97 years.

To find the half-life of the radioisotope, we can use the formula for exponential decay:

N(t) = N₀ × (1/2)^(t / T₁/₂)

T₁/₂ is the half-life of the substance.

In this case, we know that the initial amount N₀ is 100 grams, and after ten years (t = 10), 75 grams remain (N(t) = 75 grams).

We can plug these values into the equation and solve for T₁/₂:

75 = 100 × (1/2)^(10 / T₁/₂)

Dividing both sides of the equation by 100:

0.75 = (1/2)^(10 / T₁/₂)

Taking the logarithm (base 2) of both sides to isolate the exponent:

log₂(0.75) = (10 / T₁/₂) × log₂(1/2)

Using the property log₂(a^b) = b × log₂(a):

log₂(0.75) = -10 / T₁/₂

Rearranging the equation:

T₁/₂ = -10 / log₂(0.75)

Using a calculator to evaluate the logarithm and perform the division:

T₁/₂ ≈ 29.13 years

Therefore, the half-life of the radioisotope is approximately 28.97 years.

Read more on half-life period here: https://brainly.com/question/12341489

#SPJ11

A solution that has many ions in solution and turns pH paper orange is likely to be an acidic solution with a pH between 3 and 5.

The presence of many ions in solution indicates that the solution is likely to be a strong electrolyte, meaning that it contains a high concentration of ions that dissociate completely in water.

This could be due to the presence of a strong acid or a strong salt in the solution. The orange color on the pH paper indicates that the solution has a pH in the acidic range, which is consistent with the high concentration of H+ ions in an acidic solution.

Therefore, the solution can be classified as a strong acidic solution.

For more question on pH click on

https://brainly.com/question/172153

#SPJ11

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)

Answer:

C₂H6

Explanation:

Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). Option A

A hydrocarbon is a compound that consists of only carbon and hydrogen atoms. It is important to identify the formula that represents a hydrocarbon among the given options:

A) C₂H6: This formula represents ethane, which is a hydrocarbon. Ethane consists of two carbon atoms bonded together with single bonds and six hydrogen atoms.

B) C₂H5OH: This formula represents ethanol, which is not a hydrocarbon. Ethanol contains a hydroxyl group (-OH), indicating the presence of oxygen in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.

C) C₂H5Cl: This formula represents ethyl chloride, which is not a hydrocarbon. Ethyl chloride contains a chlorine atom (Cl) in addition to carbon and hydrogen atoms. It is a haloalkane, not a hydrocarbon.

D) C₂H6O: This formula represents ethanol, which, as mentioned before, is not a hydrocarbon. Ethanol contains an oxygen atom (O) in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.

Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). It consists only of carbon and hydrogen atoms, making it a suitable representation of a hydrocarbon.

In summary, the formula C₂H6 (option A) represents a hydrocarbon, while the other options contain additional elements (oxygen or chlorine) that make them non-hydrocarbon compounds. Option A

For more such questions on hydrocarbon visit:

https://brainly.com/question/21281906

#SPJ8

Answer:

here's the answer hope it helps

The slowest step in a reaction mechanism is known as the rate-determining step. The rate-determining step limits the overall rate and therefore determines the rate law for the overall reaction.

Overall reaction equation:

2NO (g) + O2(g) ---------> 2NO2(g)

Overall rate= k1 [NO]^2

Overall reaction equation:

2NO (g) + O2(g) ---------> 2NO2(g)

The overall reaction equation is obtained by adding the two equations. This now gives the actual overall equations when intermediates must have been cancelled out.

Since k1<<k2 which me as that the first step is much slower than the second step, then the first step is the rate determining step, being the slowest step in the non elementary reaction sequence.

Therefore overall rate;

Overall rate= k1 [NO]^2

Learn more about nitrogen dioxide

https://brainly.com/question/6840767

#SPJ4

Answer:Lithium atomic orbital and chemical bonding information. There are also tutorials on the first thirty-six elements of the periodic table includes: Li²O

The crash where the cone experience a stronger force is option D because: Crash 1: the force on the black hockey puck was stronger in this crash, so the force on the cone was also stronger.

The ball is drawn back to Earth by gravitational force. The ball returns to Earth as a result of friction. The ball is forced back toward Earth by magnetic force.

A puck's velocity changes when a player makes contact with it when it is still. He causes the puck to speed up, in other terms. The hockey stick's force, which causes the acceleration, is responsible. The velocity grows as long as this force is in motion.

Therefore, the force applied to an object must be larger than what is required for a progressive slowing down if the object must be slowed down quickly. For instance, a bicycle's brakes will slow or stop it more quickly the more force is given to it.

Learn more about Force from

https://brainly.com/question/12785175
#SPJ1

See full question below

After hockey practice, Carissa and Keenan were playing a game where they were pushing some objects to get them to crash. They were using a cone and two different pucks—a black one with more mass for Crash 1 and a blue one with less mass for Crash 2. They want to know what happened to the cone.

Use the information from the diagram to answer.

In which crash did the cone experience a stronger force? How do you know?

answer choices

There was no force on the cone. In both crashes, only the hockey puck experienced a force.

The diagram doesn’t tell you anything about the force on the cone. It only gives information about the force on the pucks.

It was the same force in both crashes; the hockey puck changed speed by the same amount in each crash, so the force on the cone was the same each time.

Crash 1; the force on the black hockey puck was stronger in this crash, so the force on the cone was also stronger.

0.85moles of O₂ will be produced, if 0.7784 moles of H₂O are produced for the given balanced equation.

A balanced equation is indeed a chemical reaction equation in which the overall charge and the amount of atoms for every element inside the reaction are the same for both the products and the reactants.

In these other terms, the mass as well as charge along both sides of both the reaction are balanced.

2C\(_4\)H\(_{10}\)O\(_2\)+ 11O\(_2\)→ 8CO\(_2\) + 10H₂O

moles of H₂O =0.7784 moles

the mole ratio between O\(_2\) and H₂O is 11:10

moles of O\(_2\) = (11/10)×0.7784 =0.85moles

Therefore, 0.85moles of O₂ will be produced, if 0.7784 moles of H₂O are produced.

To learn more about balanced equation, here:

https://brainly.com/question/29764227

#SPJ9

Answer:

E° = -1.66 V

Explanation:

The standard reduction potential is also known as the standard electrode potentials and it tries to find the probability that an element will be reduced or undergo reduction.

From activation series online showing the standard reduction potentials for half cells, the standard reduction potential of Al3+ (aq) + 3e- -> Al(s) is;

E° = -1.66 V

The correct way to write the thermochemical equation for the given exothermic reaction is: \(C_3H_8\)= 3C + 4H₂ + Energy Option A

In a thermochemical equation, the energy term is typically written on the product side of the equation. This is because in an exothermic reaction, energy is released as a product. The product side of the equation represents the lower-energy state of the system after the reaction has occurred.

In the given reaction, propane (\(C_3H_8\)) is the product, and energy is released during its formation. Therefore, the correct representation of the thermochemical equation is \(C_3H_8\) = 3C + 4H₂ + Energy.

Option B) 3C + 4H2 \(C_3H_8\) + Energy is incorrect because it incorrectly places the energy term on the reactant side of the equation. The energy term should always be placed on the product side to indicate the energy released during the exothermic reaction.

Option A) Energy + 3C + 4H₂ = \(C_3H_8\) is also incorrect because it places the energy term at the beginning of the equation. The energy term should be placed after the products to signify that it is released during the reaction, rather than being consumed.

Therefore, the correct way to write the thermochemical equation for the given exothermic reaction is \(C_3H_8\) = 3C + 4H₂ + Energy Option A

For more such questions on thermochemical equation visit:

https://brainly.com/question/27823881

#SPJ8

Answer:

204.8 K

Explanation:

We use the ideal gas equation:

PV = nRT

where R is the gas constant (0.082 L.atm/K.mol).

We have the following data:

n= 4 moles

P = 5.6 atm

V = 12 L

So, we introduce the data in the ideal gas equation to calculate the temperature (T):

T = PV/nR = (5.6 atm x 12 L)/(4 mol x 0.082 L.atm/K.mol) = 204.8 K ≅ -68 °C

Answer: 204.63 K

Explanation: Because it makes the most sense

Answer:

The distilled water solution would be hypotonic to your blood cells, so they would gain water, swell, and possibly burst.

Answer:

When a gaseous mixture of oxygen and nitrogen is maintained at a constant temperature, the following statements must be true regarding the two gases:

Each gas will have its own partial pressure: In a mixture of gases, each gas exerts a pressure known as its partial pressure. This means that oxygen and nitrogen will have their respective partial pressures in the mixture.

The total pressure of the mixture is the sum of the partial pressures: According to Dalton's law of partial pressures, the total pressure exerted by a mixture of gases is equal to the sum of the partial pressures of each gas in the mixture. Therefore, the total pressure of the oxygen-nitrogen mixture will be the sum of the partial pressures of oxygen and nitrogen.

The ratio of the partial pressures remains constant: At a constant temperature, the ratio of the partial pressures of oxygen and nitrogen will remain the same, provided the composition of the mixture remains unchanged. This is known as Dalton's law of partial pressures.

It's important to note that the specific properties and behaviors of oxygen and nitrogen can vary in different situations, but the above statements hold true for a gaseous mixture of oxygen and nitrogen at a constant temperature.

Answer:

a) 29.0 years

b) 0.89 g

Explanation:

Using the formula

t1/2= t×ln2/ln(No/Nt)

Where

Nt= mass of radioactive isotope at time= t =0.953g

No= initial mass of radioactive isotope present= 1.000g

t= time taken for N mass of radioactive isotope to remain = 2 years

t1/2 = half-life of radioactive isotope= ???

Substituting the values

t1/2= 2 × ln2/ln(1.000/0.953)

t1/2= 2× 0.693/0.048

t1/2= 29 hours

b)

N= No(1/2)^t/t1/2

Where t= 5 years

N= 1.000(1/2)^5/29

N= 1.000(1/2)^0.17

N= 0.89g

Answer:

SF6

Explanation:

Octet Rule

The central atom covalent bounds with 6 flourine atoms.

Answer:

Option 1, Soil erosion

The carbon cycle processes that control the annual rise and fall of carbon dioxide in the Mauna Loa (Keeling) curve are photosynthesis, respiration, and decomposition. The carbon cycle is the process by which carbon dioxide enters and exits the Earth's atmosphere.

Carbon dioxide is a gas that aids in the retention of heat in the Earth's atmosphere, contributing to global warming. Carbon dioxide is consumed by plants during photosynthesis and then released back into the atmosphere through respiration and decomposition.

The carbon cycle can be broken down into four main steps: photosynthesis, respiration, decomposition, and combustion. Photosynthesis is the process by which plants consume carbon dioxide and sunlight to generate glucose, which is used as food. Oxygen is released as a byproduct of photosynthesis.

know more about carbon cycle here

https://brainly.com/question/30633292#

#SPJ11

The power radiated by the radiator changes by a factor of 14.1573 when the temperature is increased from 27°C to 54°C.

The formula that relates the power radiated by an object with the fourth power of the temperature is known as the Stefan-Boltzmann Law. It is stated as follows: P = σA(T⁴), where P is the power radiated, σ is the Stefan-Boltzmann constant (5.67 × 10⁻⁸ W/m²K⁴), A is the surface area of the radiator, and T is the temperature in Kelvin.

We must first convert the temperature to Kelvin:

TK = T°C + 273.15

TK1 = 27°C + 273.15 = 300.15 K

TK2 = 54°C + 273.15 = 327.15 K

The factor by which the power radiated changes is the ratio of the power at the new temperature to the power at the original temperature. The equation is as follows:

P2/P1 = (T2/T1)⁴

Substituting the given values:

P2/P1 = (327.15/300.15)⁴

P2/P1 = 1.8856⁴

P2/P1 = 14.1573

You can learn more about the temperature at: brainly.com/question/7510619

#SPJ11

According to solubility rules, water insoluble  compound should not dissolve in water.

Solubility is defined as the ability of a substance which is basically solute to form a solution with another substance. There is an extent to which a substance is soluble in a particular solvent. This is generally measured as the concentration of a solute present in a saturated solution.

The solubility mainly depends on the composition of solute and solvent ,its pH and presence of other dissolved substance. It is also dependent on temperature and pressure which is maintained.

Learn more about solubility,here:

https://brainly.com/question/22185953

#SPJ1

Identifying the elements:

A chemical compound that cannot be converted into another chemical substance is known as an element. Atoms are the fundamental building blocks of chemical elements. Each chemical element is identified by the atomic number, or the quantity of protons in its atoms' nucleus. For instance, the atomic number 8 of oxygen indicates that each oxygen atom's nucleus has 8 protons. As opposed to chemical compounds and mixtures, which include atoms with multiple atomic numbers, this is not the case.

The majority of the universe's baryonic stuff is made up of chemical elements; neutron stars are one of the very few exceptions. Atoms are rearranged into new compounds linked together by chemical bonds when various elements undergo chemical reactions. A small number of relatively pure native element minerals, including silver and gold, are discovered uncombined. Nearly every other element that exists naturally on Earth is found in compounds or mixtures. Although it does contain other substances like carbon dioxide and water, the main constituents of air are the elements nitrogen, oxygen, and argon.

Learn more about Elements:

https://brainly.com/question/28424113

#SPJ4

The concentration of the H2SO4 solution is 0.1466 mol/L.

In this problem, we are given information about the titration of an H2SO4 solution with an unknown concentration using a 0.1222 M KOH solution. At the equivalence point, the moles of H2SO4 will be equal to the moles of KOH. We can use this fact to determine the concentration of the H2SO4 solution.

First, we need to determine the number of moles of KOH that reacted with the H2SO4 solution. We can do this using the concentration of the KOH solution and the volume of KOH used:

moles of KOH = concentration of KOH × volume of KOH used

moles of KOH = 0.1222 mol/L × 0.04222 L

moles of KOH = 0.00516 mol

At the equivalence point, the number of moles of KOH will be equal to the number of moles of H2SO4. Since we know the volume of the H2SO4 solution used (35.00 mL), we can calculate the concentration of the H2SO4 solution:

moles of H2SO4 = moles of KOH

concentration of H2SO4 × volume of H2SO4 = concentration of KOH × volume of KOH used

concentration of H2SO4 = (concentration of KOH × volume of KOH used) / volume of H2SO4

concentration of H2SO4 = (0.1222 mol/L × 0.04222 L) / 0.03500 L

concentration of H2SO4 = 0.1466 mol/L

For more question on concentration click on

https://brainly.com/question/26255204

#SPJ11

COMPLETE QUESTION

A 35.00 mL sample of an H2SO4 solution of unknown concentration is titrated with a 0.1222 M KOH solution. A volume of 42.22 mL of KOH was required to reach the equivalence point. Need to find concentration for H2SO4

Therefore, the final temperature of the gas is 311.7 K.

Given data:

Number of moles (n) = 1.04

Ideal monatomic gas

Transfer of heat (Q) = 208 J

Initial temperature (T1) = 294 K

To find:

(a) Work done by the gas

(b) Increase in internal energy of the gas

(c) Final temperature of the gas

(a) Work done by the gas

When a gas undergoes a constant-volume process, then the work done by the gas is given as:

W = 0

Here, since the volume of the gas remains constant, the work done on the gas is 0.

(b) Increase in internal energy of the gas

The increase in internal energy of the gas is given by the formula:

ΔU = Q

Since the heat energy is transferred to the gas, therefore ΔU = 208 J.

(c) Final temperature of the gas

To find the final temperature of the gas, we can use the following formula which relates the energy transferred, the number of moles and the change in temperature:

Q = nCvΔT

Here,Cv = Specific heat at constant volume of an ideal monatomic gas = 3/2 RΔT

= Change in temperature

Final temperature = T2

= T1 + ΔT

Putting all the values in the above formula we get:

ΔT = Q/nCvΔT

= (208 J)/(1.04 mol × 3/2 R)ΔT

= (208 J)/(1.04 mol × 3/2 × 8.31 J/mol K)ΔT

= 17.7 K

Now, T2 = T1 + ΔTT2

= 294 K + 17.7 KT2

= 311.7 K

To know more about ideal monatomic gas visit:

https://brainly.com/question/30616526

#SPJ11

The comparison of the potential energy of the cars if they are stopped at points A to point D is C. Potential energy is stored energy, point D is taller so it has more stored energy.

Potential energy is the energy held by an object as a result of its position relative to other objects, internal stresses, electric charge, or other factors. Because any object lifted from its resting position has stored energy, it is referred to as potential energy because it has the potential to do work when released.

Kinetic energy is the energy that an object has as a result of its movement. If we want to accelerate an object, we must apply force to it. Using force requires us to put in effort. After work is completed, energy is transferred to the object, and the object moves at a new constant speed.

Learn more about kinetic energy on:

https://brainly.com/question/14427111

#SPJ1

The roller coaster is your favorite ride! but the line is always long! having just studied potential and kinetic energy in physics, you evaluate the energy changes of the cars as they move on the tracks. Compare the potential energy of the cars if they are stopped at points A to point D.

A. Neither have potential energy.

B. The potential energy is the same.

C. Potential energy is greatest at point D.

D. Potential energy is greatest at point A.

Answer:

because he must be not healthy person

Answer:

people find that 5hey are self sabotaging them selves to move forward

Only possible with alkaline earth metals

Let's see an example

\(\\ \sf\longmapsto X(OH)_2\)

The elements are

Option C is correct

\(\rule{300pt}{1000000pt}\)