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Answer:

reduces

Explanation:

According to Boyle's law, when the pressure of a gas increases at constant temperature the volume reduces.

Boyle's law states that "the volume of fixed mass of a gas is inversely proportional to the change in pressure if the temperature is constant".

Mathematically, it is expressed as;

     P1 V1  = P2 V2

P and V are pressures

1 and 2 are initial and finals state.

Boyle's law is stated for the ideal gas at a constant temperature. According to Boyle's law, with an increase in pressure, the volume of the gas decreases.

The ideal gas is given as the gas in which the interatomic collisions are zero, and the changes are produced with the collisions to the walls.

Boyle's law is stated as the gas is at a constant temperature. According to the ideal gas, the pressure and volume are inversely related.

With the increase in pressure, the volume of the gas decreases and vice versa.

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Answer:

At high temperatures or in the presence of catalysts, sulfur dioxide reacts with hydrogen sulfide to form elemental sulfur and water. This reaction is exploited in the Claus process, an important industrial method to dispose of hydrogen sulfide.

Answer:

[tex]p_f=0.5atm[/tex]

Explanation:

Hello!

In this case, since the reaction between nitrogen and hydrogen produces ammonia:

[tex]N_2+3H_2\rightarrow 2NH_3[/tex]

We can compute the volume of the container by using the ideal gas law at STP (1 atm and 273.15 K):

[tex]V=\frac{4.0mol*0.08206\frac{atm*L}{mol*K}*273.15K}{1atm}=89.7L[/tex]

Next, since nitrogen and hydrogen are in a 1:3 mole ratio, we understand all the nitrogen and hydrogen are consumed and only ammonia remains at the end of the reaction in the following amount:

[tex]n_{NH_3}=1.0molN_2*\frac{2molNH_3}{1molN_2} =2.0molNH_3[/tex]

Thus, the final pressure turns out:

[tex]p_f=\frac{2.0mol*0.08206\frac{atm*L}{mol*K}*273.15K}{89.7L}\\\\p_f=0.5atm[/tex]

Best regards!

Answer:

sipi

Explanation:

Answer:

I hope your having a good day, here is the answer to your following question:

C is the most highest energy...i just looked at a Periodic Trends — Ionization Energy

If i get it Right give brainlest

Explanation:

Answer:

1.70×6.02=6.4414

Explanation:

it would be times

10.2234 kJ of heat is needed to completely melt 1.70 moles of H2O, given that the water is at its melting point and the heat of fusion for water is 6.02 kJ/mole.

The term "latent heat" refers to the heat energy that a substance retains when its phase changes during a specific process. The latent heat of evaporation, which occurs when a liquid absorbs heat from an external source at its boiling point, is one of many types of latent heat.

Similarly, the latent heat of fusion is used when any substance melt at its melting point to change the liquid phase of that substance.

As given in the problem, The heat of fusion for water is 6.02 kJ/mole. This means 6.02 kJ heat is needed to melt 1 mole of ice into water

Then the heat are needed to completely melt 1.70 moles of H2O,

Heat  = 1.70 moles ×6.02 kJ/mole

Heat = 10.2234 kJ

Thus, the heat needed to completely melt 1.70 moles of H2O is 10.2234 kJ

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Answer: organelles

Explanation:

Similar to the way your stomach, lungs, and heart have different functions in your body, each organelle has a different function within the cell.

When determining a body's mass, the most popular units to employ are pounds (lb) and kilograms (kg). For correct trade, engineering, and scientific study, accurate conversion between these two is therefore crucial. Here 2/5 tons is 881.84 pounds.

Scales are used in numerous ways to determine a body's weight or mass. To measure various items of various sizes, various sorts of scales are utilized. As the measure of an object's weight, pounds are used. In Britain, this style of weighing in pounds is typical. Additionally, it can be written as Lb or Lbs.

Here 1 tons = 2204.62 pounds

Thus 2/5 tons = 2/5 × 2204.62

2/5 tons = 881.84 pounds

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Answer: d.) x= -7.5 x= -0.5

Explanation: correct on edge 2021

Answer:

NH4+ will be ammonium, NH3 is ammonia which is the conjugate base of ammonium.

Explanation:

Answer:

C. Colloids

Explanation:

Because these two mixtures don't mix

Answer:

D. suspension

Explanation:

I took this assignment the other day and made a 100

Answer:

Tetrahedral

Trigonal pyramidal

less than 109.5°

Explanation:

If a molecule has a hybridization of sp3 it must have four electron domains which corresponds to a tetrahedral geometry.

Now we were told that the molecule also has one lone pair. It means that one out of the four electron domains is composed of a lone pair. Thus the molecular geometry will be trigonal pyramidal (e.g NH3).

Recall that lone pairs usually decrease the bond angle to a value less than the expected value for that particular electron domain geometry.

The expected bond angle for a tetrahedral geometry is 109.5° but that of the trigonal planar geometry is less than this.

Answer:

Explanation:

I would ask him why would he want to add the blue stripe?

why would he want to add the blue stripe in tooth paste? I would ask

A toothpaste is composed of many ingredients like surfactants, abrasive agent, thickening agent, flavors, humectants, solvent, buffer, color, fluoride etc.

Surfactant provide foam, helps to spread the toothpaste throughout the mouth, have detergent action, example is sodium lauryl sulphate.

Abrasive agents have cleaning action like calcium carbonate, calcium phosphate etc.

Thickening agents act as a binder which prevent ingredients from spreading include natural gum, seaweed colloids etc.

Humectants helps to retain water which helps the paste to drying out such as glycerol, sorbitol etc.

Solvents act as a carrier of other ingredients of the toothpaste which makes it flowable and provide hydration.

Buffer is added to stop the toothpaste from being acidic such as trisodium phosphate, sodium citrate etc.

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Answer:

KOH  molar mass = 39 + 16 + 1 = 56g

To make 1 L of 1M soln needs 56g KOH

To make 500mL 1M needs 56/2 = 28g

To make 500mL 0.2M needs 28 x 0.2gn:

Explanation:

The weight of KOH are required to prepare 500. mL of 0.450 KOH solution is 12.6 gm

Molar concentration is a measure of the concentration of a chemical species, in particular of a solute in a solution, in terms of amount of substance per unit volume of solution.

In chemistry, the most commonly used unit for molarity is the number of moles per liter, having the unit symbol mol/L or mol/dm³ in SI unit.

Molar mass of KOH  = 39 + 16 + 1 = 56g

To make 1 L of 1M soln needs =  56g KOH

To make 500mL 1M needs 56/2 = 28g

To make 500mL 0.450 M needs =  28 x 0.450

                                                      =  12.6 gm

Therefore, The weight of KOH are required to prepare 500. mL of 0.450 KOH solution is 12.6 gm.

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Answer:

where is the table..............

Answer:

B

Explanation:

I just took the test.

Answer:

I dont know about the yield but I think mno2 is the limiting reactant

Answer:

Um uhhhh um 4d

Explanation:

Explanation:

I have a dog in my dog is a girl

Answer:

me

Explanation:

I'm a girl and I have a RIDE skele-rex and a ride cerberus and a n f r GRIFFIN and a f r gold rat and a normal unicorn a RIDE kitsune

Answer:

a) Molarity = 0.199M

b) 21.6L of solution

c) 0.199 moles of sucrose in 1L

Explanation:

a) Molarity is the ratio of moles of solute (sucrose) in volume of solution (3.30L):

Moles sucrose -Molar mass: 342,3g/mol-:

225.0g * (1mol / 342,2965g) = 0.6573 moles

Molarity = 0.6573 moles / 3.30L

b) 0.199M means 0.199 moles in 1L. 4.30 moles are in:

4.30 mol * (1L / 0.199mol) = 21.6L of solution

c) By definition, there are 0.199 moles of sucrose in 1L. This is the meaning of 0.199M

HOW TO CALCULATE MOLARITY:

QUESTION A:

QUESTION B:

QUESTION C:

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Answer:

im pretty sure the electron configuration of the barium ion Ba+2 is [Kr]5s24d105p6

Explanation:

Answer:

The answer is 24 miles.

Explanation:

Every hour he rides 8 hours. If he rides for three hours you can take 8 miles x 3 hours which is 24 miles.

The speed of the  riding is 8 miles/hours . Within a time of 3 hours Andy will go for a distance of 24 miles.

Speed is a physical quantity which measures the distance covered per unit time. The rate of speed is called velocity both having the units m/s, km/hr, miles/hr etc.

Speed is directly related to the distance covered. As the speed increases, distance covered by the object also increases. Whereas as the time increases, distance covered will decreases.

Given the speed of ride = 8 miles/s

time  = 3 hours.

Distance = speed × time.

               = 8 miles/ hr × 3 hours

               = 24 miles.

Therefore, Andy will reach out a distance of 24 miles within 3 hours when ride with a speed of 8 miles/s.

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Answer:

Reactants or Factors

Explanation:

make the product

Answer:

mole ratio = Fe:O2 = 2 : 3

36 grams of iron = how many moles?

well, 36/56 = 0.64 moles

multiply this by 1.5 =0.96 moles

this * 16 =15.43 grams

According to stoichiometry and balanced chemical equation of iron and oxygen 17.15 g of rust is produced when 12 g iron reacts with oxygen.

Stoichiometry is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.

Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.

The balanced chemical equation for formation of rust when iron reacts with oxygen  is,

4 Fe + 3 O₂[tex]\rightarrow[/tex] 2 Fe₂O₃

223.36 g of iron produces 319.38 g of rust

∴ 12 g iron will produce 12×319.38/223.36= 17.15 g of rust.

Therefore, 17.15 g rust is produced from 12 g iron when it reacts with oxygen.

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Answer:

Organs of the male productive system are the scrotum, spermatic ducts, sex glands, and penis. They coinside to produce sperm, gametes, and semen.

Explanation:

I payed attention in health <3 nah jk I am an expert of all things man

Answer:

Fossils of the same animals have been found on South America and on Africa.

Africa and South America look as if they could be fit together perfectly (they almost can!)

Explanation:

Basically, the idea is that South Africa and Africa were once the same landmass. The same animals lived in that landmass, but when they broke off, then the animals were on different continent, yet they came from the same place.

Answer:

Pure substance

Explanation:

A material that consists of only one type of element or compound is regarded as a pure substance.

A pure substance has the following properties;

Compounds and elements are pure substances too.

There is 40 g of sugar in a 500 ml bottle of lemon juice

The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight/volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent.

the concentration of sugar in lemon juice :

[tex]\tt \dfrac{20~g}{250~ml}=0.08~g/ml[/tex]

So for 500 ml juice :

[tex]\tt 500\times 0.08=40~g~sugar[/tex]

Answer:

you need to know what you're finding the mass of.

Explanation:

This is just one example. There are probably more out there, but this is one thing my parents taught me. Hope this helps, and tell me if I'm wrong!

Answer:

The one above me is correct! I used it. But of course I had to write a little different to the person's sentences and draw a little differently in my own way.

Explanation:

If somehow you can't open the PDF (the comment on top of my comment) here I took a screenshot of it, if you need it! Good luck everyone :D