two different substance can have the same properties ​

Answers

Answer 1

Yes, you're absolutely correct


Related Questions

The molecular structure of water has an asymmetrical arrangement of hydrogen atoms causing.

Answers

Answer:

the asymmetrical arrangement of hydrogen atoms in a molecule of water causes the molecule to be polar, with the hydrogen atoms having a slightly positive charge, and the oxygen atom having a slightly negative charge.

Arrange these elements into a table showing metals and non-metals: phosphorus, P, barium, Ba, vanadium, V. mercury, Hg, krypton, Kr, potassium, K, and uranium, U.​

Answers

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Does this equation show that transmutation has taken place during decay? why or why not?

61/28 ni=61/28 ni + y

a. yes, because the numbers of nucleons and atoms are conserved

b. no, because high-energy electromagnetic waves are emitted

c. no, because there is conservation of the number of atoms as well as the number of nucleons

d. yes, because nickel atoms remain nickel atoms with the same number of neutrons

Answers

The equation is not a transmutation because there is conservation of the number of atoms as well as the number of nucleons; option C.

What is transmutation?

Transmutation refers to the artificial synthesis of new elements by a nuclear reaction of the original element and nuclear particles.

In transmutation, a new element is formed and the atomic number changes.

Based on the above, it can be concluded that the given equation is not a transmutation because there is no change in atomic and nucleon number.

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can see all wavelengths/photons of light emitted from excited electrons.

Answers

No, all wavelengths/photons of light are emitted from excited electrons.

What is wavelength?

Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire.

When an atom's electrons move to a lower energy state, the atom releases energy in the form of a photon. Depending on the energy involved in the emission process, this photon may or may not occur in the visible range of the electromagnetic spectrum.

Hence, no, all wavelengths/photons of light are emitted from excited electrons.

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A+gas+at+250k+and+15atm+has+a+molar+volume+12%+less+than+the+perfect+gas+law+character. +calculate+the+compressibility+factor

Answers

The compression factor based on the information given is 0.083.

How to calculate the compression factor?

The way to calculate the compression factor goes this:

V(ideal) = RT/P

= (0.0821 × 250)/15

= 1.368

V(real) will be:

= V(ideal)/12

= 1.368/12 = 0.114

The compression factor will be:

= 1.368/(12 × 1.368)

= 0.083

Therefore, the compression factor is 0.083.

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deduce the molecular formula of hydrogen 18.2%, carbon 81.8%, relative molecular mass is 44​

Answers

Answer:

let number of carbon is an

Explanation:

hence 12 and + 2n is equal to 126

14 and is equal to 126

n is equal to 9

Help!!!!!!!!!!!!!!!!

Answers

Answer:

the mixture two is the Heterogeneous solution and the mixture 1 (sugar solution) is true solution

Explanation:

Heterogeneous solutions are solutions with non-uniform composition and properties throughout the solution. A solution of oil and water, water and chalk powder and solution of water and sand, etc.

True solution

The sugar solution is a mixture of sugar and water which is a true solution. True Solution is a homogeneous mixture of two or more materials with a particle size of less than 10-9 m or 1 nm dissolved in the solvent.

A solute is a substance to be dissolved.

The solvent is the one in which solute is dissolving.

In the sugar solution sugar is the solute and water is the solvent.

Answer:

Explanation:

your cool

Which would be a good use for an organic substance? Check all that apply. A. Electrical conductors B. Waterproof coatings C. Fuels such as gasoline D. Microchips E. Plastic storage containers

Answers

Answer:

B. waterproof coating

Explanation:

please mark me brainlist

Write the half reaction equations at the cathode and anode

Answers

A redox reaction is one in which oxidation and reduction occurs.

What is a redox reaction?

A redox reaction is one in which oxidation and reduction occurs. Oxidation involves electron loss while reduction involves electron gain.

For the compound NaI;

The oxidation half equation is - 2Na(s)  --->2Na^+(aq) + 2e

The reduction half equation is - I2 + 2e ---->2 I^-(aq)

Missing parts:

Write the anode half-reaction and cathode half-reaction for NaI.

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Which of the following is a double replacement reaction?
K2S + CoCI2 -> 2KCI + CoS
Ca + 2H2O -> Ca (OH)2 + H2
CaO + H2O -> Ca(OH)2
2KCIO3 -> 2KCI + 3O2

Answers

The reaction that exemplifies a double replacement reaction is as follows: K2S + CoCI2 -> 2KCI + CoS, which is option 1.

What is a double replacement reaction?

A double replacement reaction is a type of reaction in which two elements are substituted in the reacting compounds.

In the reaction given as follows:

K2S + CoCI2 -> 2KCI + CoS

Pottasium replaces cobalt in Cobalt chlorideSulfur replaces chlorine in Cobalt chloride

Therefore, the reaction is a type of double replacement reaction.

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Which is not a characteristic of a compound?

has different properties from its component elements
different samples have different properties
can be represented by a chemical formula
a pure substance made of two or more elements

Answers

The second answer is not a characteristic because compounds don’t vary from sample to sample. For example NaCl (table salt) is indistinguishable from sample to sample.

eggs do not contain sugar. Explain why they have such high energy values.​

Answers

Answer:

becuz they have protien inside them dumy its easy

Answer:

because they have protein inside them dummy its easy therefore they did not have sugar

Explanation:

Scientists are trying to find out why bees are dying in large numbers. Which best describes how the scientists will try to solve the problem?
A. They will do the same experiments to obtain similar evidence.
B. They will only work with scientists who share the same opinions.
C.
They will observe the same patterns and draw the same conclusions
D.
They will approach the problem in different ways but share ideas. ​

Answers

Answer: D. They will approach the problem in different ways but share ideas.

which of these changes are endothermic and which are exothermic

baking a cake
bending a plastic ruler
cutting paper
melting ice cream
ripening of fruit
souring of milk

Answers

Answer:

exothermic - bending a plastic ruler , cutting paper, melting ice cream, ripening of fruit, souring of milk.

Explanation:

endothermic- baking of cake .

Exothermic is all of them besides baking a cake that’s endothermic

An ice freezer behind a restaurant has a freon leak, releasing 31.68 g of C2H2F3Cl into the air every week. If the leak is not fixed, how many kilograms of fluorine will be released into the air over 6 months

Answers

The weight of fluorine released in to the air over 6 month will be 0.365 kg

What is Freon ?

Freon is a non-combustible gas that is used as a refrigerant in air conditioning applications.

This freon undergoes an evaporation process over and over again to help produce cool air that can be circulated throughout your AC system

Total number of weeks = 6 x 4 = 24

Mass leak rate of freon = 31.68 g/week

Mass leak rate of flourine = fluorine mass in freon / molecular mass of freon x leak rate

                                          = 19 x 3 / 118.5 x  31.68

           

                                          =  15.23 gm/week

Total fluorine leak in 6 month = 15.23 x 24 = 365.72 gm = 0.365 kg

Hence, The weight of fluorine released in to the air over 6 month will be 0.365 kg

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Discuss how varying ph of water affects the soil ph which in turn would affect the durability properties of reinforced concrete as a constituent material?

Answers

Although soils are capable of resisting pH changes, there are some circumstances where the pH of the water can result in alterations.

Will Soil pH Be Affected by Water pH?

The texture of soil affects how susceptible it is to the pH of the surrounding water. Smaller soil particles, such as clays and clay loams, have a greater impact than larger, sandier soils. There are more colloids, which are extremely minute particles, in fine-textured soils. Positively charged ions are maintained at these colloids. The cation exchange capacity of a soil refers to its capacity to hold onto these ions. Ions on the colloidal particles trade places with ions in the soil solution. The pH of the soil is less affected by negative ions in the soil solution.

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work out the size of resistance.​

Answers

Answer:

Step 1: Identify the resistivity (ρ) , length (L), and radius (r) of the wire. Step 2: Calculate the cross-sectional area of the wire using the formula for the area of a circle: A=πr2 A = π r 2 . Step 3: Calculate the resistance (R) of the wire using the formula for resistance: R=ρLA R = ρ L A

According to Le Châtelier's principle, an increase in temperature will shift the equilibrium position toward the products in an endothermic reaction.

True

False

Answers

The statement "According to Le Châtelier's principle, an increase in temperature will shift the equilibrium position toward the products in an endothermic reaction" is definitely true.

What is Le Châtelier's principle?

Le Châtelier's principle may be defined as transformations in the temperature, pressure, volume, or concentration of a system that will lead to observable and conflicting changes in the strategy in order to accomplish a refreshed equilibrium state.

According to Le Châtelier's principle, an increase in temperature generates the equilibrium to move in the direction of the product of the endothermic reaction, and the decrease in the temperature rationales the equilibrium to move in the direction of the product of the exothermic reaction.

Therefore, it is well described above.

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Which word equation best describes the following formula equation:

4Al+3O2→2Al2O3?

A. Four molecules of aluminum and three molecules of diatomic oxygen react to form two molecules of aluminum oxide.
B. Four molecules of aluminum react with six molecules of oxide to form twelve molecules of aluminum oxide.
C. Two molecules of aluminum oxide reacts to form three molecules of oxygen and four molecules of aluminum.
D. Aluminum reacts with oxide to form aluminum oxide.

Answers

Option A is the correct answer that describes the equation best as compared to other statement.

Which statement best describes the equation?

Four molecules of aluminum and three molecules of diatomic oxygen react to form two molecules of aluminum oxide is the statement best describes the equation because this statement have same number of molecules that reacted in the equation. We considered an equation correct that have wrong numbers in front of atoms.

4Al+3O2------------>2Al2O3

So we can conclude that option A is the correct answer that describes the equation best as compared to other statement.

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Use the periodic table to answer the questions below.
Which diagram shows the correct electron
configuration for nitrogen (N)?
N N N1
1s
2s
2p
NN ILL
1s 2s
2p
N N
1s
2s
DONE✔
2p

Answers

The diagram that show the correct electron configuration is the second option. ⬆⬇1s,  ⬆⬇2s, ⬆⬆⬆2p.

What is electronic configuration?

The electronic configuration is the representation of electron present indifferent energy levels is an atom. The different type of orbitals are s, p, d, and f.

Thus, the correct option is 2, ⬆⬇1s,  ⬆⬇2s, ⬆⬆⬆2p.

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A 2. 75-l container filled with co2 gas at 25°c and 225 kpa pressure springs a leak. When the container is re-sealed, the pressure is 185 kpa and the temperature is 10°c. How many moles of gas were lost?.

Answers

Answer:

Moles Lost = 0.0335 moles

Explanation:

This type of question requires the Ideal Gas Law equation. The equation looks like this:

PV = nRT

In this formula,

-----> P = pressure (kPa)

-----> V = volume (L)

-----> n = number of moles

-----> R = constant (8.314 L*kPa/mol*K)

-----> T = temperature (K)

(Step 1)

To find how many moles were lost, you first need to find how many moles you had to begin with. This can be done by plugging the starting values into the equation and solving for "n". But first, you need to convert Celsius to Kelvin (by adding 273.15).

P = 225 kPa                  R = 8.314 L*kPa/mol*K

V = 2.75 L                     T = 25°C + 273.15 = 298.15 K

n = ?

PV = nRT

(225 kPa)(2.75 L) = n(8.314 L*kPa/mol*K)(298.15 K)

618.75 = n(2478.8191)

0.250 = n

(Step 2)

Next, you need to find the number of moles in the container after it has been re-sealed. The volume is the same because the container did not change. The process should be the same as above.

P = 185 kPa                   R = 8.314 L*kPa/mol*K

V = 2.75 L                     T = 10°C + 273.15 = 283.15 K

n = ?

PV = nRT

(185 kPa)(2.75 L) = n(8.314 L*kPa/mol*K)(283.15 K)

508.75 = n(2354.1091)

0.216 = n

(Step 3)

Finally, you can find the number of moles lost by subtracting the final amount of moles from the original amount. When doing this calculation, I used the value of the moles saved in my calculator (with more decimal places) to get a more accurate number.

Moles Lost = Initial Moles - Final Moles

Moles Lost = 0.250 moles - 0.216 moles

Moles Lost = 0.0335 moles

Calculate the root mean square velocity of I2(g) at 373 K.

Answers

From the calculations, the root mean square speed is 6.1 m/s.

What is the root mean square speed?

The root mean square speed of a gas is obtained by the use of the formula;

V rms = √3RT/M

Where;

R = gas constant

T = temperature

M = molar mass

V rms =√3 * 8.314 * 373/254

V rms =6.1 m/s

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How many moles of CF4 can be produced when 8.95 mol C reacts with 7.88 mol F2?
How many moles of each reactant are left over? (Note that at least one of the reactants must disappear.)
C remaining
mol
F2 remaining
mol

Answers

The remaining moles of C is 5.01 moles while the remaining moles of F₂ is 0.

Reaction between Carbon and Fluorine

The reaction between carbon and Fluorine is given as;

C + 2F₂  -------> CF₄

1  :    2                1

from the reaction above,

2 moles of F₂ requires 1 mole of C

7.88 mole of  F₂ will require:    7.88/2 = 3.94 moles of C and 3.94 moles of CF₄.

The remaining moles of C = 8.95 - 3.94 = 5.01 moles while the remaining moles of F₂ is 0.

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Which statement best describes how the scientific community analyzes data?
OA. A scientist must always keep his or her data hidden from other
scientists.
B. There is only one possible conclusion to be drawn from a set of
data.
OC. Each scientist must use his or her own, unique data.
OD. Scientists can come to different conclusions based on the same
data.
SUBMIT

Answers

Answer: D. Scientists can come to different conclusions based on the same data.

scientists can come to different conclusions based on the same data

A box has dimensions of 2.5 cm by 3.0 cm by 4.0 cm. The volume of the box in milliliters and liters is Group of answer choices 3,000 mL and 3.0 L 30 mL and 30,000 L 7.5 mL and 7,500 L 30 mL and 0.030 L 7.5 mL and 0.0075 L

Answers

Considering the definition of volume, the volume of the box is 30 mL or 0.03 L.

What is volume

Volume is a metric magnitude that is defined as the extension in three dimensions of a region of space. In other words, it is defined as the amount of space occupied by the object or figure in three-dimensional space. Volume is measured in cubic units.

Volume can be considered as the capacity of a container to hold a quantity of fluid (gas or liquid).

Volume of a box

A box is a rectangular prism, which is defined as a prism with rectangular bases and rectangular lateral faces.

The volume of this prism depends on its three dimensions and is calculated as the multiplication of these dimensions:

Volume= Dimension 1× Dimension 2× Dimension 3

Volume of the box in this case

In this case, you know that a box has dimensions of 2.5 cm by 3.0 cm by 4.0 cm. So, the volume can be calculated as:

Volume= 2.5 cm× 3 cm× 4 cm

Solving:

Volume= 30 cm³

Being 1 cm³=  1 mL and 1 L= 1,000 mL then:

Volume= 30 cm³= 30 mL= 0.03 L

Finally, the volume of the box is 30 mL or 0.03 L.

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For the function F(x) = 1, which of these could be a value of F(x) when x is
close to zero?

Answers

Answer:

A.  -10,000

Explanation:

When x approaches zero, the graph tells us that F(x) either becomes extremely large or extremely small.  The best answer is therefore A:  -10,000.  Best, because we aren't given the exact value of x, but clearly the other results require that x be greater than 1 or less than -1, which is far from zero.

Which statement best describes how changing the temperature of a solution
affects the rate of reaction?
A. Increasing the temperature of a solution increases the
concentration of the reactants.
B. Decreasing the temperature of a solution increases the rate of
reaction.
C. Increasing the temperature of a solution increases the rate of
reaction.
D. Decreasing the temperature of a solution increases the
concentration of the reactants.

Answers

C. increasing the temperature of a solution increases the rate of reaction.

This is because increasing the temperature gives particles more kinetic energy, thus resulting in more effective collisions.

write the transitional metals and their electronic configuration​

Answers

Answer:

yo no se nada

Explanation:

solo se que no se nada xd

Scientists used alpha particles to investigate models of the atom. Figure 4 shows an alpha particle scattering experiment.

Explain how scientists used the results from the experiment to :

disprove the plum pudding model
give evidence for the new nuclear model​

Answers

Answer:

See attached image.

Explanation:

What does viscosity describe

Answers

The Answer Is The Third Option
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(15%) This question was confusing 15 for whoever answers Which of the following Byzantine contributions formed the basis for much of medieval European law?O Separation of church and stateO The Justinian CodeO The Hagia SophiaO Polemon To determine customer satisfaction with their service department, an automobile dealer randomly selects 20 hybrid-vehicle owners, 20 suv owners, and 20 sedan owners and sends them a survey. What type of sampling is used?. Find the measure of angle 1.5)AB is a straight line.A152B Select two that are true Towering bulwarks are popular rides at amusement parks.True or False Which statement about 2h2 15h 7 is true?One of the factors is (h + 2).One of the factors is (3h 2).One of the factors is (2h + 1).One of the factors is (h 7). Be a Responsible Pet Owner Many people are unaware of the effect that spaying and neutering has on their pets. By talking to a veterinarian, a pet owner can make an informed decision that will make quite an impact on their pet's life. Some people think that their pet will be healthier if they do not spay or neuter them. However, studies show that animals who are spayed and neutered avoid becoming sick with certain kinds of cancer, infection from breeding with strays, and physical stress of birthing while either too young or too old. Also, it has been shown that pets who are spayed and neutered can live 30% longer than those who have not. Other people worry that spaying or neutering their pet will affect their personality. Male pets are affected, becoming friendlier and better behaved instead fighting other pets or spraying their territory. Female pets seem less affected, but also prove to be less territorial and better behaved. Vets have said that the personality of a pet is more affected by the care and attention they receive from their owner than a spay or neuter. Spaying and neutering is so effective and healthy for pets that it should be a law that all pet owners must follow. Experienced breeders and veterinarians are well-informed, but the average pet owner is not. If pet owners were better informed or even forced by law to spay and neuter their pets, there wouldn't be as many homeless animals on the streets.What is one way that the author supports his argument? A. The author presents facts about pets who have and have not been spayed or neutered. B. The author shares a story about a friend whose pets were not neutered or spayed. C. The author presents facts and shares stories of his own experiences with pets. D. The author does not give any evidence to support his argument or the opposing side. 22. (05.07 MC) The table shows the values of y for different values of x:x 7 8 9 10 11 12 13y 13 10 7 6 5 3 0The correlation coefficient for the data is 0.9847. Which statement is true about the data in the table? (1 point)There is no relationship between x and y.There is a weak negative relationship between x and y.There is a strong positive relationship between x and y.There 22. (05.07 MC) The table shows the values of y for different values of x:x 7 8 9 10 11 12 13y 13 10 7 6 5 3 0The correlation coefficient for the data is 0.9847. Which statement is true about the data in the table? (1 point)There is no relationship between x and y.There is a weak negative relationship between x and y.There is a strong positive relationship between x and y.There is a strong negative relationship between x and y. A group of historians are researching the Great Depression in the United States and the events that led to the stock market crash drop in the nations wealth. based on this description, which school of thought do these historians likely belong to ? In the IS-LM model when government spending rises, in the short-run equilibrium, in the usual case the interest rate __________ and output ___________ What resulted from the mughal empire's trade relationship with european powers? o a. the mughal military became substantially more powerful. b. mughal leaders abandoned policies of religious tolerance. c. great britain took control of the mughal economy. d. hindus launched protests against the mughal government. Somebody help me please..Ill appreciate it alot thank you MAT 1711. The polynomial of degree 5, P(x) has leading coefficient 1, has roots of multiplicity 2 at x=1 and x=0, and a root of multiplicity 1 at x=-4 Find a possible formula for P(x)2. The polynomial of degree 4, P(x) has a root of multiplicity 2 at x=4 and roots of multiplicity 1 at x=0 and x=-4. It goes through the point (5, 36).Find a formula for P(x).3. The polynomial of degree 3. P(x), has a root of multiplicity 2 at x=3 and a root of multiplicity 1 at x=-2. 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