12.39 g sample of phosphorus (30.97 g/mol) reacts with 52.54 g of chlorine gas, Cl2
(70.91 g/mol) to form only phosphorus trichloride, PC13 (137.33 g/mol). Which is the
limiting reactant?

Answer:

b and c

Explanation:

b nuclear energy and d is radiology dating if I am correct

Answer:

See Explanation

Explanation:

Both oxygen and dinitrogen (1) oxide are known to rekindle a glowing splint. However, oxygen is an odorless gas while dinitrogen (1) oxide has a faint smell and has an effect on the central nervous system.

Also, the combustion of dinitrogen (1) oxide produces brown fumes of nitrogen IV oxide.

Finally, when dinitrogen (1) oxide and oxgen are both heated with copper, residual nitrogen gas is left with dinitrogen (1) oxide while no residual gas is left with oxygen.

Answer: 151 ft = 46.02 meters

Explanation:

The correct option for the catalyzed decomposition for given dinitrogen monoxide are- A. 1, 2, and 4

Nitrous oxide, also referred to as laughing gas, nitrous, simply nos, is a chemical substance that has the formula N2O and is also known as dinitrogen oxide as well as dinitrogen monoxide.

The fundamental procedures for dinitrogen monoxide's catalyzed breakdown are:

N2O (g) + NO (g) → N2 (g) + NO2 (g)

2 NO2 (g) → 2 NO (g) + O2 (g)

Thus, the correct statements are-

1. The overall balanced reaction is 2 N2O (g) → 2 N2 (g) + O2 (g).

2. NO (g) is a catalyst for the reaction.

4. NO2 (g) is a reaction intermediate.

Therefore, A. 1, 2, and 4 is the correct option.

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Answer:

12000j

mass=1500kg

velocity=4m/s

Kinetic Energy (K E) = 1/2 mv^2

=1/2*1500(4^2)

=1*750*16

=12000j

Answer:

No matter how many times you cut it, its chemical properties won't change and it'll still be paper.

Explanation:

One structural difference between oligosaccharides and polysaccharides is their respective chain lengths. Oligosaccharides are composed of a relatively small number of monosaccharide units (typically 3 to 10), whereas polysaccharides consist of a larger number of monosaccharide units, often hundreds or thousands. This difference in chain length gives rise to variations in their properties and functions.

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The chemical formula of aspartame is C₁₄H₁₈N₂O₅ and it's relative molecular mass is 294.30 g/mol which is calculated as (12×14)+(1×18)+(14×2)+(16×5).

Molecular  mass of a compound or a molecule is defined as the mass of the elements which are present in it.The molecular mass is considered to be a bulk quantity not a molecular quantity. It is often an average of the of the masses at many instances.

The molar mass and formula mass are used as synonym for the molecular mass.It does not depend on the amount of substance which is present in the sample.It has units of gram/mole.

Molecular masses of an element are given as relative atomic masses while that of compounds is the sum of relative atomic masses which are present in the compound.In case of aspartame it is calculated as,(12×14)+(1×18)+(14×2)+(16×5)=294.30 g/mol.

Thus , relative molecular mass or molecular mass of aspartame is 294.30 g/mol.

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Answer:

Explanation:

Comment

1 mole of KClO3 has 3 moles of oxygen

9.9 moles of KClO3 has x moles of oxygen

Formula

1/9.9 = 3/x                                    Cross Multiply

Solution

1 / 9.9 = 3 / x

1*x = 9.9 * 3

x = 29.7 moles of oxygen

1 mole of oxygen has 6.02 * 10^23 atoms making up that 1 mole

29.7 moles of oxygen has 6.02*10^23 atoms making them up.

Answer

29.7 * 6.02 * 10^23 atoms

1.78 * 10^25 atoms

Calculate atoms in KClO_3

1 mol KCl contains 3mol O_2

9.9 mol contains

Answer:

We need more? What else is in the question? This is unanswerable.

Explanation:

The temperature changes for the water and the metal can be calculated by subtracting their initial temperatures from the final temperature.

AT (water) = √°C - °℃

AT (metal) = √°C - °℃

The above equations give the temperature changes for the water and the metal, respectively. The specific values of the temperatures and the final temperature are not provided, so the actual temperature changes cannot be determined without knowing these values.

In general, the temperature change of a substance is given by the difference between the final and initial temperatures. When a warmer object comes into contact with a cooler one, heat energy is transferred from the warmer object to the cooler one until they reach thermal equilibrium, where their temperatures become equal.

The magnitude of the temperature change depends on factors such as the specific heat capacity of the substances involved and the amount of heat exchanged between them.

To accurately calculate the temperature changes, the specific heat capacities of water and the metal would be needed. Additionally, the masses or quantities of the substances would be necessary to determine the amount of heat exchanged. Without these specific values, it is not possible to provide a precise numerical answer.

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Answer:

in the water, plants and small organisms like plankton take up mercury through passive surface absorption or through food intake. ... Methylmercury biomagnifies through the food chain as predators eat other organisms and absorb the contaminants that their food sources contained.

Explanation:n the water, plants and small organisms like plankton take up mercury through passive surface absorption or through food intake. ... Methylmercury biomagnifies through the food chain as predators eat other organisms and absorb the contaminants that their food sources contained.

Plants and small organisms like plankton absorb mercury in the water via passive surface absorption or food intake. Methylmercury biomagnifies through the food chain as predators consume other organisms and absorb contaminants from their prey.

Biomagnification is the condition in which the chemical concentration in an organism exceeds the concentration of its food when the organism's diet is the primary exposure route.

Any concentration of a toxin, such as pesticides, in the tissues of tolerant species at increasingly higher levels in a food chain is referred to as biomagnification. One example of biomagnification in action is the accumulation of the insecticide DDT in zooplankton.

Mercury is taken up by water, plants, and small organisms such as plankton via passive surface absorption or food intake. Methylmercury biomagnifies through the food chain as predators consume other organisms and absorb contaminants from their prey.

Thus,  Methylmercury biomagnifies through the food chain as predators consume other organisms and absorb contaminants from their prey.

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We can see here that the best fuel is the one that produces the most heat per unit mass. In this case, the fuel that produces the most heat per unit mass is methanol.

Fuel is a substance that is used to produce energy through combustion or other chemical reactions. It is commonly utilized to power various forms of transportation, generate heat or electricity, and operate machinery and appliances.

The results of the experiment are shown below:

Fuel            Mass (g)      Heat produced (J)       Heat per gram (J/g)

Methanol 1.0                          350                   350

Ethanol         1.0                          250                   250

Propane         1.0                          200                   200

Butane         1.0                          150                            150

Pentane         1.0                          100                            100

It is important to note that the results of this experiment are only a measure of the heat produced by the fuels.

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Liquid butane C4H10 is likely to be miscible with D.) pentane.

Liquid butane, C4H10 is a nonpolar molecule, and it is likely to be miscible with other nonpolar substances. Among the given options, substance that is nonpolar and has similar polarity to butane is (d) CH3CH2CH2CH2CH3, which is pentane. Therefore, liquid butane is likely to be miscible with pentane.

On the other hand, options (a) CH3NH2 and (b) H2O are polar substances and are unlikely to be miscible with butane. Option (c) CH3OH is polar, but it has a lower molecular weight than that of butane and has some polar character, so it is also unlikely to be miscible with butane.

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There are 6 sigma bonds in 1-chloro-1,3-pentadiene.

In 1-chloro-1,3-pentadiene, let's break down the structure to count the number of sigma bonds

The compound 1-chloro-1,3-pentadiene has the following structure:

Cl

H2C=C=CH-CH2-CH3

To count the sigma bonds, we examine each carbon atom and its attached atoms or groups.

Starting from the left side:

The first carbon (C1) is bonded to one hydrogen (H) atom and two other carbon atoms (C2 and C3) by sigma bonds.

The second carbon (C2) forms a double bond with the third carbon (C3), so they share one sigma bond and one pi bond.

The third carbon (C3) is also bonded to the second carbon (C2) and the fourth carbon (C4) by sigma bonds.

The fourth carbon (C4) is bonded to the third carbon (C3) and the fifth carbon (C5) by sigma bonds.

The fifth carbon (C5) is bonded to one hydrogen (H) atom and one methyl (CH3) group by sigma bonds.

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Yes, s = u+v/2+t, where s is the displacement, u is the beginning velocity, v is the end velocity, and t is the time required, is the equation of motion for a body travelling with uniform acceleration.

The basic law of motion, which states that a body's rate of change in displacement is directly proportional to its velocity, provides the basis for this equation. The equation of motion for a body travelling with constant acceleration, s = ut + 1/2at2, may be used to derive it.

The equation of motion for a body travelling with uniform acceleration is given by replacing the value of an as (v-u)/t and getting s = u+v/2+t. This formula is only accurate when the body's acceleration is constant and uniform.

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The rate law is; Rate = k[X] [Y]

The rate law is an equation that describes how the rate of a chemical reaction is dependent on the concentrations of the reactants. The rate law provides information about the rate of a reaction and the effect of changing the concentrations of reactants on the reaction rate.

The rate law can be expressed as:

rate = k [A]^m [B]^n

We have to note that for X;

1.4 * 10^-3/7.0 * 10^-4 = 0.4/0.2

2= 2^n

n = 1

For Y;

2.8 * 10^-3/1.4 * 10^-3 = 0.4/0.2

2 = 2^n

n = 1

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Answer:

Two of them are solids, one is liquid. Two of them are edible, one is not. One is a mixture, and two are not.

Explanation:

The Pacific Ocean is the largest ocean in the world based on water volume, totaling some 660 million cubic kilometers and is almost equally divided into the North and South Pacific waters.

Answer: D. baking muffins

Explanation:

A chemical change occurs once some reactants/ingredients are mixed together to create a new product.

In the case of cutting a banana = you still get a banana;

pouring milk = you still have milk;

tossing a salad = cut up veggies = just cut up veggies next to each other;

whereas baking muffins: you begin with flour, sugar, butter, etc. (individual ingredients), and then you bake them (add energy to the system), which in turn gives you a new product = muffins.

Answer:

Explanation:

Dispersion force is caused by weak Van der Waals attraction between molecules.

Because chloroamine and water are both polar solvents, dipole-dipole force of attraction exists between them. There is also hydrogen bonding present from the water molecules.

Answer: The forces present include;

1. Hydrogen bonding

2. Dispersion bonding

3. Dipole to Dipole bonding.

Explanation:

1. Hydrogen bonding is an electrostatic force that occur between atoms of hydrogen which is covalently bonded to electronegative atoms.

2. Dispersion force is type of force that occur between molecules which is caused by weak Van der Waals attraction between molecules.

3. Dipole -Dipole force occur when atoms with partial charges within a molecule attract themselves with another opposite opposite partial charge that is around the molecule.

Therefore,

Because chloroamine and water are both polar solvents, hydrogen bond, dispersion force and dipole-dipole force of attration occur between them. The hydrogen bonding occur between the water molecules.

Answer:

Step 1: Use the kn*fe to cut the rubber tubing into two pieces.

Step 2: Use one plastic bag to filter the pond's murky water. Place the bag over the plastic cup and pour the water into it.

Step 3: Place the filtered water from the plastic bag into the 5-L glass bottle.

Step 4: Add a few drops of the liquid bleach to the water in the glass bottle.

Step 5: Place the nylon jacket over the top of the glass bottle and secure it with the rubber tubing.

Step 6: Place the glass bottle in direct sunlight and let it sit for at least an hour.

Step 7: Remove the nylon jacket and rubber tubing from the glass bottle.

Step 8: Use the second plastic bag to filter the water from the glass bottle.

Step 9: Enjoy the drinkable water!

Explanation:

Answer:

diamond is the ans

Explanation:

hope it helped!!!

Answer: 1) \(RCOO^-\)

2) \(H_2PO_4^-\)

3) \(RNH_2\)

4) \(HCO_3^-\)

Explanation:

According to the Bronsted-Lowry conjugate acid-base theory, an acid is defined as a substance which looses donates protons and thus forming conjugate base and a base is defined as a substance which accepts protons and thus forming conjugate acid.

1) \(RCOOH\rightarrow RCOO^-+H^+\)

Here, \(RCOOH\) is loosing a proton, thus it is considered as an acid and after losing a proton, it forms \(RCOO^-\) which is a conjugate base.

2) \(H_3PO_4\rightarrow H_2PO_4^-+H^+\)

Here, \(H_3PO_4\) is loosing a proton, thus it is considered as an acid and after losing a proton, it forms \(H_2PO_4^-\) which is a conjugate base.

3) \(RNH_3^+\rightarrow RNH_2+H^+\)

Here, \(RNH_3^+\) is loosing a proton, thus it is considered as an acid and after losing a proton, it forms \(RNH_2\) which is a conjugate base.

4) \(H_2CO_3\rightarrow HCO_3^-+H^+\)

Here, \(H_2CO_3\) is loosing a proton, thus it is considered as an acid and after losing a proton, it forms \(HCO_3^-\) which is a conjugate base.

There will be 0.4589 mL of ethyl acetate left in the space after evaporation.

The conversion of a liquid substance into a gas is known as evaporation. As a result of the liquid absorbing energy from its surroundings, molecules begin to travel faster and faster until they finally become a vapour and escape into the environment. Usually, the energy is absorbed as heat, but it can also be in the form of light or electricity.

No, the ethyl acetate won't all evaporate. The amount of ethyl acetate that will stay in the space after evaporation can be determined using the ideal gas law. As per the ideal gas law, PV = nRT

P is the overall system pressure, V is the room's volume, n is the amount of ethyl acetate in moles, R is the ideal gas constant, and T is the temperature.

To solve for n, the quantity of moles of ethyl acetate, we can rearrange the equation as follows: n = PV/RT

When the values are plugged in, we get:

n = (94.9 torr)(7.25 m x 2.75 m x 2.75 m)/(8.314 J/K mol)(298 K)

\(n = 4.666 \times 10^{-3} mol\)

The molar mass of ethyl acetate (88.11 g/mol) can then be used to compute the mass of ethyl acetate:

Mass = \(n \times M = (4.666 x 10^{-3} mol)(88.11 g/mol)\) = 0.4125 g

Using the density of ethyl acetate (0.901 g/mL), it is possible to determine the volume of the liquid that is still present:

Volume = mass/density = (0.4125 g)/(0.901 g/mL) = 0.4589 mL

As a result, there will be 0.4589 mL of ethyl acetate left in the space after evaporation.

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Answer:

Water has a chemical formula of H2O . In here, there are two hydrogen atoms and one oxygen atom, and so its mass will be 2+16=18 amu . There are two water molecules formed, and that means the total mass of the products is 18⋅2=36 amu .

Answer:

C

Explanation:

Answer:

ganyan din ang alam ko

Explanation:

letter c

we would need 2625.13 grams (or 2.62513 kilograms) of NaCl.

To calculate the mass of NaCl required to produce a 26.4 mol/L solution with a 1.7 L volume, we need to use the formula that relates the mass of solute, moles of solute, and molarity:Molarity (M) = moles of solute / liters of solution Rearranging this formula, we get:moles of solute = Molarity (M) x liters of solutionWe can use this formula to find the moles of NaCl needed:moles of NaCl = 26.4 mol/L x 1.7 L = 44.88 molNow, we can use the molar mass of NaCl to convert from moles to grams. The molar mass of NaCl is 58.44 g/mol:mass of NaCl = moles of NaCl x molar mass of NaClmass of NaCl = 44.88 mol x 58.44 g/mol = 2625.13 gTo produce a 26.4 mol/L solution with a 1.7 L volume.

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