i) Explain why chlorine(1) oxide has a low melting point.

Answers

Answer 1

Answer:

Being a covalent compound, the intermolecular forces between the Cl2O molecules are weak and easily overcome. Therefore little heat energy, in terms of low boiling point is involved.


Related Questions

A piece of copper has a mass of 290 g. How many atoms does the sample contain?

Answers

A piece of copper that has a mass of 290 g has 2.748 *10²⁴ molecules.

What is a mole ?

A mole is a unit of measurement which relates the molar mass to the amount of the number of atoms and molecules .

1 mole = 6.022 *10²³ molecules or atoms

Molecular weight of copper = 63.55

290 g of Copper = 290/63.55 = 4.56 moles

1 mole has 6.022 *10²³ molecules or atoms

4.56  mole has 4.56 *6.022*10²³ molecules or atoms

= 2.748 *10²⁴ molecules.

A piece of copper that has a mass of 290 g has 2.748 *10²⁴ molecules.

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What is the conjugate base of CH3COOH in the reaction below?
CH₂COOH(aq) + H₂O(/) — H₂O¹(aq) + CH₂COO¯(aq)

O A. H₂0
OB. CH3COO
О с. он-
OD. H30+

Answers

Answer: B. [tex]\text{CH}_{3}\text{COO}^{+}[/tex]

Explanation:

To find the conjugate base, you add a hydrogen ion and add 1 to the overall charge.

CH[tex]_3[/tex]COO⁻ is the conjugate base of  CH[tex]_3[/tex]COOH in the given reaction. Therefore, the correct option is option B.

What is conjugate base?

Conjugate acids and bases are ideas included in the Bronsted-Lowry acid-base theory. An acid losses a hydrogen ion as it splits into its electrons in water. The conjugate base of the acid is the species that results.

A conjugate base comprises the base participant, X-, of two compounds that convert into one another by acquiring or losing a proton, according to a more comprehensive definition. In a chemical process, the conjugate base has the capacity to either gain and absorb a proton. The proton and hydrogen is given away in the process by the conjugate acid. CH[tex]_3[/tex]COO⁻ is the conjugate base of  CH[tex]_3[/tex]COOH in the given reaction.

Therefore, the correct option is option B.

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The number of neutrons in Aluminum is​

Answers

the number of neutrons in aluminium is 14

Answer:

14

Explanation:

number of neutrons in an atom is difference between mass number and atomic number

atomic number of Al is 13 and mass number of Al is 27

number of neutrons = 27 - 13 = 14

If the half life of Krypton is 3.16 minutes, what is the time needed for a sample of Krypton to decay so that 1/8th of its original amount remains

Answers

Answer:

.......................................

The diagram shows the potential energy changes for a reaction pathway. (10 points)

A curved lined graph is shown. The y axis of the graph has the title Potential Energy. The x axis of the graph has the title Reaction Pathway. The graph curve begins at a higher level and ends at a slightly lower level. A vertical line labeled A, starting from the x axis till the beginning of the graph line is shown. A vertical line labeled B, starting from the x axis till the uppermost hump in the graph curve is shown. Another vertical line labeled C is shown from starting from the x axis till the point where the graph curve ends.

Part 1: Does the diagram illustrate an endothermic or an exothermic reaction? Give reasons in support of your answer.

Part 2: Describe how you can determine the total change in enthalpy and activation energy from the diagram and if each is positive or negative.

Answers

1) The diagram shows an exothermic reaction since the potential energy of the products is less than that of the reactants, meaning energy was released.

2) To find the change in enthalpy, determine the difference between the potential energy of the products and the potential energy of the reactants. (on this diagram, C-A) To find the activation energy, find the difference between the potential energy of the reactants and the "peak" of the curve (on this diagram, B-A). For this diagram, both the enthalpy and activation energy are positive.

Answer:

Part 1 and Part 2 Answer

Explanation:

Part 1:

The reactions have higher potential energy than the products, this means it is an exothermic reaction.

Part 2:

Change in enthalpy is determined by the difference between potential energy of the reactants (A) and potential energy of the products (C). Because the reactants is higher than the products' and we know the reaction is exothermic, the change in enthalpy will be negative (-∆H).

The activation energy can be determined by the difference between the peak of the graph (B) and the potential energy of reactants (A). The activation energy would be positive.

Where does most of our heat come from?

Answers

Answer:

the cells in your body

Explanation:

Most people that i have asked this similar question to, have said the sun. It's not the sun because the sun disappears at night. Your body produces heat because your cells are burning up energy.

Fill in the blanks
1. Soil is an important - _______resource
2. For soil formation to take place, bare rocks initially need to breakup as a result of -________- process
3 The uppermost layer of earth's crust in which plant grow is called________​

Answers

Answer:

1.natural 2.weathering 3.soil

A student prepares a solution of Potassium Nitrate (KNO3) containing 95g at 40 C. This solution is -


A.) Saturated

B.) Unsaturated

C.) Supersaturated

D.) None of the Above

Answers

From the solubility curve as shown, the solution of 95g at 40 C can be said to be unsaturated.

What is a saturated solution?

The term saturated solution has to  do with a solution which contains just as much solute as it can normally hold at a particular temperature.

Looking at the solubility curve as shown, the solution of 95g at 40 C can be said to be unsaturated.

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What forms white light?

Combination of all the wavelengths of ultraviolet light
Combination of all the wavelengths of visible light
Absorption of electromagnetic rays
Absorption of infrared rays

Answers

Answer:

Combination of all the wavelengths of visible light.

Explanation:

Hope it helps you :))))

Have a good day

Which of the following is the name given to a carbohydrate containing one monomer?
O Decasaccharide
O Polysaccharide
Disaccharide
Monosaccharide
NEXT QUESTION
ASK FOR HELP

Answers

Answer:

Monosaccharides

A monosaccharide is the monomer of a carbohydrate. Carbohydrates, such as sugars and starches, store energy. Others, such as cellulose and chitin, are structural in nature.

Answer:

monosaccharide

Explanation:

a monosaccharide is the monomer of carbohydrates.

Predict the products and write the balanced Equation for the following:
“Aqueous Copper (II)Chloride reacts with aqueous Tin (IV) Nitrite."

Answers

Answer:

2 CuCl₂ (aq) + Sn(NO₂)₄ (aq) ---> 2 Cu(NO₂)₂ (aq) + SnCl₄ (aq)

Explanation:

You can safely assume that this is a double-displacement reaction. In these reactions, the cation of one molecule is substituted for the cation of another molecule, and vice versa. Once the reaction occurs, you are left with the products:

copper (II) chloride + tin (IV) nitrite ---> copper (II) nitrite + tin (IV) chloride

The balanced equation is:

2 CuCl₂ (aq) + Sn(NO₂)₄ (aq) ---> 2 Cu(NO₂)₂ (aq) + SnCl₄ (aq)


The theory of relativity is stated as the equation E=mc² where:
E-energy
m = mass
c=speed of light
A scientist has data for the speed of light and energy variables. What form of the equation should the scientist use to determine the mass of an
object?

Answers

Answer:

don't know mass? or energy just search

What type of reaction is the transformation of oxalacetic acid into malic acid?

Answers

[tex]NADP{{H}_{2}}[/tex] is required for the transformation of oxaloacetic acid into malic acid.

What is malic acid?

Malic acid is sour and acidic. This helps to clear away dead skin cells when applied to the skin.

The conversion of oxaloacetic acid into malic acid takes place in [tex]C_4[/tex]plants through the [tex]C_4[/tex] cycle by the process of photosynthesis.

Carboxylation of pyruvate produces oxaloacetate (OAA). This is an energy-requiring reaction that uses adenosine triphosphate (ATP).

Hence, [tex]NADP{{H}_{2}}[/tex] is required for the transformation of oxaloacetic acid into malic acid.

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If you dissolve 1.78 g of MgSO4 (Mm = 120.4 g) in 1.10 L of water, what is the molarity of the solution? (Report your answer to four places past the decimal point)​

Answers

The molarity of the solution given the data from the question is 0.0135 M

What is molarity?

Molarity is simply defined as the mole of solute per unit litre of solution. Mathematically, it can be expressed as:

Molarity = mole / Volume

How to determine the mole of MgSO₄ Mass of MgSO₄ = 1.78 gMolar mass of MgSO₄ = 120.4 g/mol Mole of MgSO₄ =?

Mole = mass / molar mass

Mole of MgSO₄ = 1.78 / 120.4

Mole of MgSO₄ = 0.0148 mole

How to determine the molarity Mole of MgSO₄ = 0.0148 mole Volume = 1.1 L Molarity =?

Molarity = mole / Volume

Molarity = 0.0148 / 1.1

Molarity = 0.0135 M

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A gallon of paint covers 350 square feet.

How many gallons must be bought to cover a room with two 16’ by 10’ walls and two 14’ by 10’ walls?

Can somebody who know how to do this solve this for me?

Answers

Answer:

2,137... gallons

Explanation:

(160+140+14x16x2)/350=2,137...

does a displacement reaction take place in iron + sodium chloride? and if so why?

Answers

Answer:

No.

A more reactive metal displaces or pushes out a less reactive metal from its compound. In the reactivity series, sodium is more reactive than iron hence no displacement reaction will occur.

100
Cut a 7-inch-diameter circle out of cardstock. Draw a spiral on the circle as shown. Next, use the scissors to cut along the lines you drew starting on the outside and ending in the center. Use the hole punch or scissors to make a hole at the middle of the spiral and attach the thread with a knot. Tie the other end of the thread loosely around the center of the stick so you can suspend the spiral in the air. Fill the pot with 2 inches of water. Heat the water until it boils, and then turn off the heat source. Let the pot sit for 4 minutes. Holding the ends of the stick with the spiral attached, position the bottom of the spiral right above the top of the pot so it’s not touching the water. Describe what happens.
Enter your answer to Part A here:

Answers

The heat will go up right above the top of the pot and then will go through the hole in the centre.

What is heat?

Heat is the transfer of kinetic energy from one medium or object to another, or from an energy source to a medium or object.

Conduction is probably the most basic and intuitive way of achieving heat transfer. Something hot touches something cool and the cool thing heats up. For instance, the water in a pot boils when the flame from the stovetop heats the pan, and the heat from the pan is transferred to the water via conduction.

Thus, the heat will go up right above the top of the pot and then will go through the hole in the centre.

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1. Related to the number of particles in a gram of
substance and to possible motions of the
particles (2 words)

Answers

Answer:

Avogadro's number or Avogardro’s constant

Explanation:

I’m pretty sure this is correct if it’s not I’m sorry lol.

Substrate: N-benzoyl-L-tyrosine ethyl ester (BTEE) 0.001M in 50% aqueous
her
methanol.
Buffer:0.1M tris-HCl, pH 7.8, containing 0.1M CaCl₂.
Enzyme:1mg/ml chymotrypsin A in 0.001M HCI.
N.B. The enzyme provided is a stock solution which should be diluted 50-fold with
0.001M HCl immediately before use.

How do I do this calculation abs the final volume should be 5ml

Answers

0.1 mL of the stock solution of the enzyme is taken and made up to 5.0 mL with 0.001M HCl in order to prepare a 50-fold diluted enzyme.

What is dilution?

Dilution is a process of making a solution of lower concentration from a solution of higher concentration by the addition of solvent to a given volume of the solution of higher concentration.

Dilution of solutions is done using the dilution formula in order to determine the given volume of diluent or stock solution required. The dilution formula is given below:

C1V1 = C2V2

where:

C1 = Initial concentration of enzymeC2 = Final concentration of enzymeV1 = Initial volume V2 = Final volume

For the enzyme dilution;

C1 = 1 mg/mL

C2 = 1/50 mg/ml = 0.02 mg/ml

V= ?

V2 = 5 ml

V1 = C2V2/C1

V1 =  0.02 * 5/1 = 0.1 mL

Therefore, 0.1 mL of the stock solution of the enzyme is taken and made up to 5.0 mL with 0.001M HCl in order to prepare a 50-fold diluted enzyme.

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Which of the following is true about population and resources?
A.
There is no relationship between population and the use of natural resources.
B.
People in the US use more resources per person than people in less developed countries.
C.
People in underdeveloped countries use more resources per person than people in the US.
D.
Each person in the world uses an equal amount of natural resources.

Answers

Answer:

B.

People in the US use more resources per person than people in less developed countries

Explanation:

Use the ideal gas law to calculate the pressure inside of a 1L compressed gas tank, with a temperature of 273.15K filled with 13moles of CO2

Question options:
A. 567.74 kPa
B. 21.01 kPa
C. 3550.95 kPa
D. 0.05 kPa

Answers

Answer:

P = 29,523 kPa

Explanation:

The formula of the Ideal Gas Law is:

PV = nRT

In this formula,

P = pressure (kPa)

V = volume (L)

n = number of moles

R = 8.314 (L*pKa/mol*K)

T = temperature (K)

You have been given values for all of the variables but pressure. Therefore, you can plug the given values into the equation and simplify to find pressure.

PV = nRT

P(1 L) = (13 moles)(8.314 L*kPa/mol*K)(273.15 K)

P(1 L) = 29523

P = 29,523 kPa

**I am pretty certain my math is correct. I also checked with an ideal gas law calculator and got this same answer. Either I am missing something or some of the values are wrong. Hopefully this explanation helps clear something up though.**



If you want to prepare 80.0 mL of 4.00M acid ,How many mL of 12.4 M HCl are required ?

Answers

[tex]M_{A}V_{A}=M_{B}V_{B}\\(80.0)(4.00)=V_{B}(12.4)\\V_{B}=\frac{(80.0)(4.00)}{12.4} \approx \boxed{25.8 \text{ mL}}[/tex]

Question
Which of the following factors can affect the strength of electric or magnetic fields? (YOU MAY SELECT MORE THAN ONE ANSWER

Answers

The factors that affect the strength of electric or magnetic fields are loop count, the current, the wire size, and the presence of an iron core.

What is an electromagnetic field?

Electromagnetic field is defined as the field that is made up of both the electric and magnetic field that can help in conduction of electricity.

The factors that affect the strength of electric or magnetic fields include the following:

loop count,

the current,

the wire size, and

the presence of an iron core.

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It took 55 days for a radioactivity of 1.75 x 1012 Bq to remain 0.135 Ci. What is the half-life of this radioactivity?

Answers

From the calculations, we can see that the half life of the material is 11.4 days

What is radioactivity?

The term radioactivity refers to the spontaneous disintegration of a radioactive nucleus. The time taken for half of the radioactive material to remain.

Given that;

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

N = amount that remained

No = amount that remained in the beginning

t = time taken

t1/2 = half life of the substance

N =Noe^-kt

4.995 ×10^9 = 1.75 x 10^12e^-55k

3.5* 10-2=e^-55k

k = ln3.5* 10-2/-55

k =0.06095

t1/2 = 0.693/0.06095

t1/2 = 11.4 days

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Consider 2.00 moles of Argon, an ideal gas, at a density of 5.00 g/L and a pressure of 2.00 atm. What is the closest value to the temperature (in K) of this gas?

Answers

Answer:

194.73 K

Explanation:

Use the Ideal Gas Law:    PV = n RT

   R = .082057366  L Atm / k-mole

2 moles Argon weigh in at 79.896 gm

  79.896 gm / 5 gm/L = 15.9792 Liters

Ideal Gas Law:

(2)(15.9792) = 2 (.082057366) ( K)

194.73 K

Considering 2.00 moles of Argon, an ideal gas, at a density of 5.00 g/L and a pressure of 2.00 atm, the closest value to the temperature of the gas is approximately 39.01 K.

To find the temperature of the gas, we can use the ideal gas law equation:

PV = nRT

In this formula:

P = pressure (in atm)

V = volume (in L)

n = number of moles

R = ideal gas constant (0.0821 L·atm/mol·K)

T = temperature (in K)

Here it is given that:

P = 2.00 atm

V = 1 L

n = 2.00 moles

R = 0.0821 L·atm/mol·K

Now we can rearrange the equation to solve for T:

T = PV / (nR)

Substitute the given values:

T = (2.00 atm) x (16.00 L) ÷ (2.00 moles x 0.0821 L·atm/mol·K)

Calculate:

T ≈ 39.01 K

Thus, the closest value to the temperature of the gas is approximately 39.01 K.

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Explain how the period and group trends in atomic radii are related to electron configuration

Answers

Atomic radii decreases in a Period, but increase down a Group.

What is atomic radii?

Atomic Radii is the total distance from the nucleus of an atom to the outermost shell of its electron. Atomic radii decreases when we move from left to right in a Period due to addition of nuclear charge inside the nucleus but increase down a Group because of the addition of new shells

So we can conclude that Atomic radii decreases in a Period, but increase down a Group.

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Helium occupies 293 mL at 788 Torr and 25C. If the sample is condensed into a 0.115 liter flask, what will the new pressure be, assuming constant temperature?

Answers

Answer:

=2007.69 Torr

Explanation:

The new pressure of helium gas assuming constant temperature is equal to 2007.69

Torr.

Given the following data:

Initial volume = 293 mL

Final volume = 0.115 L

Initial pressure = 788 Torr

Temperature = 25°C.

Conversion:

Initial volume = 293 mL to L = 293/1000=0.293L

To determine the new pressure assuming constant temperature, we would apply Boyle's law:

Mathematically, Boyle's law is given by the formula;

PV=K

P1V1=P2V2

Where;

P1 is the original (initial) pressure.

P2 is the final pressure.

V1 is the original (initial) volume.

V2 is the final volume.

Substituting the given parameters into the formula, we have;

788×0.293 = P2 × 0.115

230.884 = 0.115P2

P2 = 230.884/0.115

P2 =2007.69

a 40 g sample of water absorbs 500 calories of energy, how much did the water temp changed?​

Answers

2.99 °C is the change in temperature if a 40 g sample of water absorbs 500 calories of energy.

What is specific heat capacity?

The specific heat capacity is defined as the quantity of heat (J) absorbed per unit mass (kg) of the material when its temperature increases 1 K (or 1 °C), and its units are J/(kg K) or J/(kg °C).

Given data:

m = 40 g

Q = 500 J

Specific heat capacity of water = 4.18 J/g°C

Change in Temperature =?

The formula for Heat Energy is given by:

Q = mcp∆T

where: Q - Heat Energy

m - mass

cp - specific heat

∆T = change in temperature, [tex]T_2 - T_1[/tex]

Solution:

Substituting the value of m, specific heat capacity of water and Q in the formula,

500 J = (40 g)(4.18 J/g°C)(∆T)

∆T = 2.99 °C

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A flask with a volume of 250.0 mL contains air with a density of 1.164 g/L. What is the mass of the air contained in the flask?

Answers

Answer:

convert 250.0 mL in Liters :250. 0 / 1000 = 0,25 LDensity = 1.240 g/LMass

Explanation:

What is the Percentage abundance of an isotope

Answers

Answer:

It is the proportion of atoms of an isotope in a sample of an element taken from the natural world.

Explanation:

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The emotional connotation of the underlined word helps king emphasize the documents history. significance. timing. creativity. Define 1 volt. Express it in terms of SI unit of work and charge calculate the amount of energy consumed in carrying a charge of 1 coulomb through a battery of 3 V. Answer ASAP-please thank for the help no links Women make up 46% of this class qualitative or quantitative? The length of a rectangle is four times the width. The perimeter of the rectangle is 45 inches. Write a system of equations that represents this problem. What is the area of the rectangle Iran, an oil nation, remains under control of muslim clerics, who enforce strict obedience to A new pizza restaurant uses paid advertisement to increase pizza sales on Mondays. The table below is a record of the restaurants sales each Monday for the first quarter (13 weeks) of the paid advertisement.Part A: Create a scatter plot to represent the data in the table. Then, draw the line of best fit, going through the points representing weeks 5 and 13. Be sure to label each axis, as well as to include the proper titles for the scatter plot.Part B: Use the total sales for weeks 5 and 13 to write an equation for the line of best fit. In your final answer, include all of your calculations.Part C: In terms of the slope of the equation for the lines of best, fit explain whether or not you think the paid advertisement is responsible for the restaurant's increase or decrease in pizza sales during the first quarter. Use complete senteneces in your answer.Part D: Assuming that the pizza restaurant wishes to continue the paid advertisement for an additional quater, use the equation for the line of best fit to predict the restaurant's sales for the Monday of the 20th week. PLEASE HELP SOON! Please answer the question and explain step by step how you got your answer. Julian is using a biking app that compares his position to a simulated biker traveling Julian's target speed. When Julian is behind the simulated biker, he has a negative position. Julian sets the simulated biker to a speed of 20 km/h. After he rides his bike for 15 minutes, Julian's app reports a position of -2 1/4 km. What has Julian's average speed been so far? 14 What are the solutions to the equation 3(x 4) = 27?(1) 1 and 7(3) 4 24(2) 1 and -7(4) 4 24 The lengths of the diagonals of a parallelogram are 10 feet and 16 feet. If one side of the parallelogram measures 4 feet, to the nearest hundredth of a degree, find the measure of the acute angle formed by the intersection of the diagonals. Which factor best accounts for the affordability for ford model t automobiles in the 1920s What is the standard deviation of the data? Round to the nearest whole number.6575100130 PLEASE HELP ASAP CANT MOVE ONWhat is the scale factor of LaTeX: \triangle ABC\:to\:\triangle DEC? Be sure to simplify your answer!answers: 2/7 10/21 3/14 5/14 People who lived in eastern bloc countries after world war ii could not hold jobs. participate in government. travel on street cars. send children to school. Wyatt is handling the urban design of an area. He ensures that there are speed bumps and traffic lights on roads. Which activity in urban design is Wyatt ensuring?A. suburban sprawlB. excavationC. traffic calmingD. landscapeE. expansion Please help me for a treat lol HELP!!!! THIS IS A MATRIX PROBLEM (WILL GIVE BRAINLIEST)If T= 23 -38 17 -6What is -10(T) PLACE:it is better to be educated thanto be rich. A 20.00 kg lead sphere is hanging from a hook by a thin, massless wire 2.80 m long and is free to swing in a complete circle. Treat the sphere as a point mass. Suddenly it is struck horizontally by a 5.00 kg steel dart that embeds itself in the lead sphere. What must be the minimum initial speed of the dart so that the combination makes a complete circular loop after the collision Can I pass 6th grade with these grades:ELA: 50.8%History: 25.6%Math: 60%Science: 91.3%