Write the chemical formula for iridium(III) nitride?

We are given:

The force applied on the poor hamster (F) = 12 N

Acceleration of the poor Hamster (a) = 8 m/s²

Solving for the mass of the Poor Hamster:

From newton's second equation of motion, we know that:

F = ma

replacing the given values

12 = 8 * m

m = 12/8 kg

m = 3/2 kg

The poor Hamster weighs 3/2 kg

Answer:

Cl, C, K

Explanation:

Decreasing of electro negativity across a period is by going right to left

Considering the definition of molar mass, the correct answer is option c): the mass of 1.85 moles H₂O₂ is 62.9 grams.

The molar mass of substance is a property defined as the amount of mass that a substance contains in one mole.

The molar mass of a compound is the sum of the molar mass of the elements that form it (whose value is found in the periodic table) multiplied by the number of times they appear in the compound.

In this case, you know the molar mass of the elements is:

So, the molar mass of the compound H₂O₂ is calculated as:

H₂O₂= 2× 1 g/mole + 2× 16 g/mole

Solving:

H₂O₂= 34 g/mole

You can apply the following rule of three: If by definition of molar mass 1 mole of the compound contains 34 grams, 1.85 moles of the compound contains how much mass?

mass= (1.85 moles× 34 grams)÷ 1 mole

mass= 62.9 grams

Finally, the mass of 1.85 moles H₂O₂ is 62.9 grams.

Learn more about molar mass:

brainly.com/question/5216907

#SPJ1

Answer:

correct will be from back to the start:

grass-grasshopper-toad-snake-hawk

Explanation

ood chain begin with plant-life and end with animal-life.

Based on the given bright-line spectra and the observed wavelengths in the mixture's spectrum, the elements G and J are the ones present in the mixture.

From the given bright-line spectra and the spectrum of the mixture, we can determine the elements present in the mixture by comparing the specific wavelengths observed. Examining the bright-line spectra, we can identify that G has a distinct wavelength at 650 nm, J at 600 nm, L at 550 nm, and M at 500 nm.

Looking at the spectrum of the mixture, we can observe two prominent wavelengths, 650 nm and 600 nm. These correspond to the wavelengths of G and J, respectively. Since the spectrum of the mixture does not exhibit the wavelengths specific to L (550 nm) or M (500 nm), we can conclude that only G and J are present in the mixture.

Therefore, based on the given bright-line spectra and the observed wavelengths in the mixture's spectrum, the elements G and J are the ones present in the mixture.

This analysis relies on the principle that each element has characteristic wavelengths at which they emit light. By comparing the observed wavelengths in the mixture's spectrum with those of the individual elements, we can determine the elements present in the mixture.

Know more about wavelengths here:

https://brainly.com/question/10750459

#SPJ8

Answer:

C-O: polar covalent

Mg-F: ionic

Cl-Cl: nonpolar covalent

Explanation:

Ionic bonds are formed between an atom of a metallic element and another atom of a non-metallic element. Thus, Mg-F is an ionic bond, in which Mg is the metal and F is the nonmetal.

Covalent bonds are formed between two non-metallic elements. So, C-O and Cl-Cl are covalent bonds, because C, O, and Cl are nonmetals.

In C-O, the atom of oxygen (O) has more electronegativity than the atom of carbon (C). Thus, O will attract the electrons with more strength and a difference in charge will be established between the two bonded atoms. So, this covalent bond is polar.

In Cl-Cl, both atoms have the same electronegativity because they are from the same chemical element (Cl). Thus, this bond is nonpolar.

Binary compound is a substance that is made up of precisely two separate components and cannot be further simplified chemically. Binary compounds include, for instance, H₂O, H₂S, and NH₃.

1. NH₄Cl - It is not a binary compound because it contains more than two elements that is Nitrogen, hydrogen and chlorine.

2. CaS - It is a binary compound because it contains two elements Calcium and sulfur.

3. P₂O₅ - It is a binary compound because it contains two elements Phosphorus and Oxygen.

3. CaSO₄ - It is not a binary compound because it contains more than two elements that is calcium, sulfur and oxygen.

4.  N₂O - It is a binary compound because it contains two elements that is Nitrogen and Oxygen.

5. Cl₂- It is not a binary compound because it does not contain two different elements rather it is a diatomic molecule.

Diatomic molecules- Two atoms are chemically linked together to form diatomic molecules. A homonuclear diatomic molecule is created when two identical atoms combine, such as in the oxygen molecule (O₂). A heteronuclear diatomic molecule is created when two unidentical atoms combine, such as in the CO₂ .

To learn more about compounds refer- https://brainly.com/question/26487468

#SPJ9

Answer:

D - Thermodynamics

Explanation:  I just took the quiz

To calculate the molarity of a solution, we need to determine the number of moles of the solute (Bal2) and then divide it by the volume of the solution in liters.

Given:

Mass of Bal2 = 413 g

Volume of solution = 750 ml = 0.75 L

1. Calculate the number of moles of Bal2:

First, we need to convert the mass of Bal2 to moles using its molar mass. The molar mass of Bal2 can be calculated by summing the atomic masses of boron (B) and iodine (I):

Molar mass of Bal2 = (atomic mass of B × 1) + (atomic mass of I × 2)

Molar mass of Bal2 = (10.81 g/mol × 1) + (126.90 g/mol × 2)

Molar mass of Bal2 = 10.81 g/mol + 253.80 g/mol

Molar mass of Bal2 = 264.61 g/mol

Now we can calculate the number of moles of Bal2:

Moles of Bal2 = Mass of Bal2 / Molar mass of Bal2

Moles of Bal2 = 413 g / 264.61 g/mol

Moles of Bal2 ≈ 1.561 mol

2. Calculate the molarity of the solution:

Molarity (M) = Moles of solute / Volume of solution (in liters)

Molarity (M) = 1.561 mol / 0.75 L

Molarity (M) ≈ 2.081 M

Therefore, the molarity of the solution is approximately 2.081 M.

The molarity of the solution is approximately 1.408 M as to calculate the molarity of a solution, one must need to know the number of moles of the solute and the volume of the solution in liters.

The molar mass of BaI₂ is:

Ba (barium) atomic mass = 137.33 g/mol

I (iodine) atomic mass = 126.90 g/mol

Molar mass of  BaI₂ = (Ba atomic mass) + 2 × (I atomic mass)

= 137.33 + 2 × 126.90

= 137.33 + 253.80

= 391.13 g/mol

Given that the mass of BaI₂ is 413 g,

Number of moles = Mass / Molar mass

= 413 g / 391.13 g/mol

= 1.056 moles

Volume of solution = 750 ml = 750/1000 = 0.75 L

Finally, one can calculate the molarity of the solution using the formula:

Molarity = Number of moles / Volume of solution

= 1.056 moles / 0.75 L

= 1.408 M

Learn more about molarity here.

https://brainly.com/question/13386686

#SPJ1

Answer: A homogeneous mixture has the same uniform appearance and composition throughout. Many homogeneous mixtures are commonly referred to as solutions. A heterogeneous mixture consists of visibly different substances or phases. ... Solutions have particles which are the size of atoms or molecules - too small to be seen.

The bulk density of the soil is 1.696 g/cm³.

The grams and volumetric water content of the soil are 27.328 g and 6.832%.

At field capacity and saturation are 217.088 g and 54.272%.

Mass of the sample at the PWP is 637.352 g.

To solve this problem, use the following equations:

Bulk density = mass of dry soil / total volume of soil

Particle density = mass of soil particles / total volume of soil particles

Total porosity = (total volume of soil - total volume of soil particles) / total volume of soil

Gravitational water = (gravitational water weight / bulk density) / total volume of soil

Capillary water = (capillary water weight / bulk density) / total volume of soil

Hygroscopic water = (hygroscopic water weight / bulk density) / total volume of soil

Volumetric water content = (weight of water / total volume of soil) x 100%

First, calculate the mass of dry soil:

mass of water = 400 cm³ x (4% + 32%)/100 = 144 cm³

mass of dry soil = 400 cm³ - 144 cm³ = 256 cm³

mass of dry soil = 256 cm³ x (2.65 g/cm³) = 678.4 g

Next, calculate the bulk density:

bulk density = 678.4 g / 400 cm³ = 1.696 g/cm³

Also calculate the particle density:

particle density = 2.65 g/cm³

The total porosity can be found using the equation:

total porosity = (400 cm³ - 256 cm³) / 400 cm3 = 0.36

Now, calculate the grams of water and volumetric water content at saturation:

grams of water = 400 cm³ x 4% / 100 x 1.696 g/cm³ = 27.328 g

volumetric water content = (27.328 g / 400 cm3) x 100% = 6.832%

To calculate the grams of water and volumetric water content at field capacity, subtract the hygroscopic water from the total available water:

total available water = 36% - 4% = 32%

grams of water = 400 cm³ x 32% / 100 x 1.696 g/cm³ = 217.088 g

volumetric water content = (217.088 g / 400 cm³) x 100% = 54.272%

Finally, calculate the mass of the sample at the PWP:

mass of water at PWP = 256 cm³ x 9.5% / 100 x 1.696 g/cm³ = 41.048 g

mass of dry soil at PWP = 678.4 g - 41.048 g = 637.352 g

Find out more on bulk density here: https://brainly.com/question/25986876

#SPJ1

0.677 moles of gold (Au) will be produced when 210.39 g of lead (Pb) reacts with excess gold sulfate, using the stoichiometric ratio of 3:2 between Pb and Au.

We can use stoichiometry to determine the number of moles of gold produced from the given mass of lead.

First, we need to find the molar mass of lead (Pb), which is 207.2 g/mol.

Next, we can use the given mass of lead to find the number of moles:

n(Pb) = m(Pb) / M(Pb)

n(Pb) = 210.39 g / 207.2 g/mol

n(Pb) = 1.015 mol

According to the balanced chemical equation, the stoichiometric ratio of lead to gold is 3:2. This means that for every 3 moles of lead that react, 2 moles of gold are produced.

Therefore, the number of moles of gold produced can be calculated as:

n(Au) = (2/3) × n(Pb)

n(Au) = (2/3) × 1.015 mol

n(Au) = 0.677 mol

So, 0.677 moles of gold (Au) will be produced when 210.39 g of lead (Pb) reacts with excess gold sulfate.

To know more about lead please refer: https://brainly.com/question/30906996

#SPJ1

The potential across this cell membrane with only potassium channels open is -0.082 V, which means that the inside of the cell is negatively charged relative to the outside.

The potential across a cell membrane can be calculated using the Nernst equation:

E = (RT/zF) ln([ion]out/[ion]in)

 E = potential in volts, R= gas constant (8.314 J/mol*K), T= temperature in Kelvin, z = charge on the ion, F= Faraday constant (96,485 C/mol), and [ion]out and [ion]in are the concentrations of the ion outside and inside the cell, respectively.

K+ (intracellular) ⇌ K+ (extracellular)

The charge on potassium ions is +1, so z = 1.

The temperature is 37°C or 310 K.

The concentrations of potassium ions are [K+]in = 150 mM and [K+]out = 4.0 mM.

Substituting these values into the Nernst equation,

E = (RT/zF) ln([K+]out/[K+]in)

E = (8.314 J/mol.K × 310 K)/(1 × 96,485 C/mol) ln(4.0 mM/150 mM)

E = -0.082 V

Learn more about the nerst equation here.

https://brainly.com/question/31703564

#SPJ1

Answer:

Energy is never lost, it just changes from one form to another

Answer:

40 g

Explanation:b

Answer:

Volume of solution is 0.88 L.

Explanation:

Given data:

Molarity of solution = 0.750 M

Mass of KNO₃ = 67.0 g

Volume of solution = ?

Solution:

Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.

Formula:

Molarity = number of moles of solute / L of solution

Now we will calculate the number of moles.

Number of moles = mass/molar mass

Number of moles = 67.0 g/ 101.1 g/mol

Number of moles = 0.66 mol

Now we will put the values in molarity formula.

0.750 M = 0.66 mol / L of solution

L of solution  = 0.66 mol / 0.750 M

L of solution  = 0.88 L

Volume of solution is 0.88 L.

When fossil fuels burn, several forms of energy are produced, including:

Heat energy: The primary form of energy released during fossil fuel combustion is heat. Fossil fuels contain chemical energy stored for millions of years, and when they burn, this energy is released in the form of heat. The heat energy can be harnessed for various purposes, such as heating buildings or generating steam to drive turbines.

Light energy: Burning fossil fuels can also produce light energy in the form of flames or glowing embers. This light energy is a byproduct of combustion.

Mechanical energy: Heat generated by burning fossil fuels can be converted into mechanical energy. This is typically achieved by using heat to produce steam, which drives a turbine connected to a generator. The rotating turbine converts the heat energy into mechanical energy, which is further transformed into electrical energy.

Electrical energy: Through the process described above, burning fossil fuels can ultimately generate electrical energy. The mechanical energy produced by the turbine is converted into electrical energy by the generator. Electrical energy can power various devices, appliances, industries, and infrastructure.

It's critical to note that while burning fossil fuels can produce useful forms of energy, it also results in the release of carbon dioxide and other greenhouse gases. This contributes to climate change and environmental concerns. As a result, there is a global shift towards cleaner and renewable energy sources to mitigate these negative impacts.

After the reaction is complete, no nitrogen and no hydrogen molecules remain, and 8.00 x 1014 molecules of NH3 are produced.

In the equation, nitrogen and hydrogen react at a high temperature, in the presence of a catalyst, to produce ammonia, according to the balanced chemical equation:N2(g)+3H2(g)⟶2NH3(g)The coefficients of each molecule suggest that one molecule of nitrogen reacts with three molecules of hydrogen to create two molecules of ammonia.

So, to determine how many molecules of ammonia are produced when four nitrogen and nine hydrogen molecules are present, we must first determine which of the two reactants is the limiting reactant.

To find the limiting reactant, the number of moles of each reactant present in the equation must be determined.

Calculations:
Nitrogen (N2) molecules = 4Hence, the number of moles of N2 = 4/6.02 x 1023 mol-1 = 6.64 x 10-24 mol
Hydrogen (H2) molecules = 9Hence, the number of moles of H2 = 9/6.02 x 1023 mol-1 = 1.50 x 10-23 mol

Now we have to calculate the number of moles of NH3 produced when the number of moles of nitrogen and hydrogen are known, i.e., mole ratio of N2 and H2 is 1:3.

The mole ratio of N2 to NH3 is 1:2; thus, for every 1 mole of N2 consumed, 2 moles of NH3 are produced.
The mole ratio of H2 to NH3 is 3:2; thus, for every 3 moles of H2 consumed, 2 moles of NH3 are produced.
From these mole ratios, it can be observed that the limiting reactant is nitrogen.

Calculation for NH3 production:
Nitrogen (N2) moles = 6.64 x 10-24 moles
The mole ratio of N2 to NH3 is 1:2; therefore, moles of NH3 produced is 2 × 6.64 × 10−24 = 1.33 × 10−23 moles.

Now, to determine how many molecules of NH3 are produced, we need to convert moles to molecules.
1 mole = 6.02 x 1023 molecules
Thus, 1.33 x 10-23 moles of NH3 = 8.00 x 1014 molecules of NH3 produced.

To find the amount of each reactant remaining after the reaction is complete, we must first determine how many moles of nitrogen are consumed, then how many moles of hydrogen are consumed, and then subtract these from the initial number of moles of each reactant.

The moles of nitrogen consumed = 4 moles × 1 mole/1 mole N2 × 2 mole NH3/1 mole N2 = 8 moles NH3
The moles of hydrogen consumed = 9 moles × 2 mole NH3/3 mole H2 × 2 mole NH3/1 mole N2 = 4 moles NH3
Thus, the moles of nitrogen remaining = 6.64 × 10−24 mol – 8 × 2/3 × 6.02 × 10^23 mol-1 = 5.06 × 10−24 mol
The moles of hydrogen remaining = 1.50 × 10−23 mol – 4 × 2/3 × 6.02 × 10^23 mol-1 = 8.77 × 10−24 mol

Finally, the number of molecules of each reactant remaining can be calculated as follows:
Number of N2 molecules remaining = 5.06 × 10−24 mol × 6.02 × 10^23 molecules/mol = 3.05 × 10−1 molecules ≈ 0 molecules
Number of H2 molecules remaining = 8.77 × 10−24 mol × 6.02 × 10^23 molecules/mol = 5.28 × 10−1 molecules ≈ 0 molecules.

For more such questions on molecules

https://brainly.com/question/24191825

#SPJ8

Answer:

"At the top of the first and tallest hill, your potential energy is at its highest it will ever be on this ride. As you begin to descend, your potential energy decreases until it's all gone at the bottom of the hill." The shorter the hill the roller coaster climbs, the greater its kinetic energy.

Total, 0.0137 moles of carbon dioxide gas is produced when 2.3 g of sodium bicarbonate decomposes to produce carbon dioxide and sodium hydroxide.

To determine the number of moles of carbon dioxide gas produced, we first need to find the balanced chemical equation for the reaction;

2NaHCO₃ → Na₂CO₃ + CO₂ + H₂O

From this equation, we can see that for every 2 moles of sodium bicarbonate, 1 mole of carbon dioxide is produced.

Next, we need to calculate the number of moles of sodium bicarbonate in 2.3 g using its molar mass;

molar mass of NaHCO₃ = 84.0066 g/mol

moles of NaHCO₃ = mass/molar mass

= 2.3 g / 84.0066 g/mol = 0.0274 mol

Finally, we can use the mole ratio from the balanced equation to find the number of moles of carbon dioxide produced;

moles of CO₂ = (0.0274 mol NaHCO₃) x (1 mol CO₂ / 2 mol NaHCO₃)

= 0.0137 mol CO₂

Therefore, 0.0137 moles of carbon dioxide gas is produced.

To know more about moles here

https://brainly.com/question/26416088

#SPJ1

Answer:

Idek sorry

Explanation:

So sorry i think its 1.00

Answer:

The correct answer would be 40 m/s

Explanation:

The reason 40 m/s is the correct answer is because m/s stands for meters per second.

Hope this helps you with what you're working on! :D

Answer:

40 m/s north

Explanation:

Velocity is a vector quantity, so it have both direction and magnitude.

Answer:

Covalent bonds share their valence electrons.

Explanation:

Taking into account definition of percent yield, the amount of water produced is 32.4 grams.  

In first place, the balanced reaction is:

2 C₂H₂ + 5 O₂ → 4 CO₂ + H₂O

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

The limiting reagent is one that is consumed first in its entirety, determining the amount of product in the reaction. When the limiting reagent is finished, the chemical reaction will stop.

To determine the limiting reagent, it is possible to use a simple rule of three as follows: if by stoichiometry 5 moles of O₂ reacts with 2 moles of C₂H₂, 14.8 moles of O₂ reacts with how many moles of C₂H₂?

\(moles of C_{2} H_{2} =\frac{14.8 moles of O_{2}x 2 moles of C_{2} H_{2}}{5 moles of O_{2}}\)

moles of C₂H₂= 5.92 moles

But 5.92 moles of C₂H₂ are not available, 4.8 moles are available. Since you have less moles than you need to react with 14.8 moles of O₂, C₂H₂ will be the limiting reagent.

The percent yield is the ratio of the actual return to the theoretical return expressed as a percentage and it is calculated as the experimental yield divided by the theoretical yield multiplied by 100%:

percent yield= (actual yield÷ theorical yield)× 100%

where the theoretical yield is the amount of product acquired through the complete conversion of all reagents in the final product, that is, it is the maximum amount of product that could be formed from the given amounts of reagents.

Considering the limiting reagent, the following rule of three can be applied: if by reaction stoichiometry 2 moles of C₂H₂ form 1 mole of H₂O, 4.8 moles of C₂H₂ form how many moles of H₂O?

\(moles of H_{2} O=\frac{4.8 moles of C_{2} H_{2} x1 mole ofH_{2} O }{2moles of C_{2} H_{2}}\)

moles of H₂O= 2.4 moles

The molar mass of water is 18 g/mole. Then, the theorical mass of water formed can be calculated as: 2.4 moles ×18 g/mole= 43.2 grams

In this case, you know:

Replacing in the definition of percent yields:

75%= (actual yield÷ 43.2 g)× 100%

Solving:

75%÷100%= actual yield÷ 43.2 g

0.75= actual yield÷ 43.2 g

0.75× 43.2 g= actual yield

32.4 g= actual yield

In summary, the amount of water produced is 32.4 grams.  

Learn more about

the reaction stoichiometry:

brainly.com/question/24741074

brainly.com/question/24653699

percent yield:

brainly.com/question/14408642

#SPJ1

Answer: 7.52*10^23 molecules.

Explanation: This is a classic Stoichiometry problem.

In one mole of any substance, there are 6.02*10^23 molecules. This number is called Avogadro's number. We are given 55 grams of Co2 so to convert that to moles, we divided by the molar mass of Co2. We find the molar mass by adding the molar masses of the elements that make up the compound.

There is one molecule of Carbon and two molecules of Oxygen in one molecule of Co2. From the periodic table, the molar mass of Carbon is 12.01 and 16.00 for Oxygen. 1(12.01)+2(16.00) gives us the molar mass. We then divided 55 grams by that mass to find the number of moles. We then multiply the number of moles by Avogadro's number (6.02*10^23) to find the total number of molecules.

You can use this method for solving any problem that asks you to find the number of atoms or molecules of some number of grams of a substance.

These substances have dispersed particles that are large enough to scatter light, making the beam visible. Therefore, out of the options provided, a mixture that scatters light is an example of a colloid. Option B)

A colloid is a type of mixture in which particles are dispersed throughout a medium, creating a homogeneous appearance. Unlike solutions, where the particles are completely dissolved, and suspensions, where the particles settle out, colloids have particles that are larger than those in solutions but smaller than those in suspensions. One characteristic of colloids is that they can scatter light due to the size of the particles. This scattering of light is known as the Tyndall effect. Examples of colloids include milk, fog, and aerosol sprays. These substances have dispersed particles that are large enough to scatter light, making the beam visible. Therefore, out of the options provided, a mixture that scatters light is an example of a colloid. Therefore option B) is correct

For more question on mixture

https://brainly.com/question/24647756

#SPJ8

Note Complete Question

which is an example of a colloid?

a mixture that settles out,

b mixture that scatters light,

c mixture that is separated by filtration,  

d salt and water mixture?

Answer:

pH = 0.35

Explanation:

For a strong acid, all of the acid dissociates into H3O+, and pH = -log[H3O+], where [H3O+] = [HClO3] = 0.45 M.