Consider the compounds Cl2, HCl, F2, NaF, and HF. Which compound has a boiling point closest to that of argon? Explain how you came up with your answer.

Answers

Answer 1

Answer:

Cl2, Chlorine molecule has a boiling point closest to that of argon.

This is because Chlorine is made up of discrete and simple molecules making up a simple molecular structure. The molecules associate through weak van der waal's forces of attraction hence low boiling point.

HCl has strong hydrogen bonds.

F2 is very small hence strong forces of attraction.

HF has strong hydrogen bonds


Related Questions

Please help!! I'll mark brainliest! (see the picture below)

Answers

Explanation:

Why brunojg driftwood makes colored fire... Burning driftwood, especially from the ocean gets a fire with blue and lavender flames. The colored fire comes from excitation of the metal salts that have soaked I to the wood. While the flames arepretty, the smoke give off of the fire is toxic

1 Na2CO3(aq) + 1 CaCl2(aq) → 1 CaCO3(s) + 2 NaCl(aq) 4. Use the balanced chemical equation from the last question to solve this situation: You combine 0.5 grams of Na2CO3 with excess CaCl2. How many grams of NaCl would you expect this reaction to produce? Show all work below.

Answers

Answer:

0.6 g NaCl

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Chemistry

Atomic Structure

Reading a Periodic Table

Stoichiometry

Using Dimensional AnalysisExplanation:

Step 1: Define

[RxN - Balanced] Na₂CO₃ (aq) + CaCl₂ (aq) → CaCO₃ (s) + 2NaCl (aq)

[Given] 0.5 g Na₂CO₃ reacted with excess CaCl₂

Step 2: Identify Conversions

[RxN] Na₂CO₃ → 2NaCl

Molar Mass of Na - 22.99 g/mol

Molar Mass of C - 12.01 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of Cl - 35.45 g/mol

Molar Mass of Na₂CO₃ - 2(22.99) + 12.01 + 3(16.00) = 105.99 g/mol

Molar Mass of NaCl - 22.99 + 35.45 = 58.44 g/mol

Step 3: Stoichiometry

Set up:                    [tex]\displaystyle 0.5 \ g \ Na_2CO_3(\frac{1 \ mol \ Na_2CO_3}{105.99 \ g \ Na_2CO_3})(\frac{2 \ mol \ NaCl}{1 \ mol \ Na_2CO_3})(\frac{58.44 \ g \ NaCl}{1 \ mol \ NaCl})[/tex]Multiply/Divide:                                                                                               [tex]\displaystyle 0.551373 \ g \ NaCl[/tex]

Step 4: Check

Follow sig fig rules and round. We are given 1 sig fig.

0.551373 g NaCl ≈ 0.6 g NaCl

What is the system of communication that involves an alphabet in which letters are represented by combinations of long and short
signals of light or sound?
A
Email
B)
Morse code
Binary code
D
Digital Signal Reception
Wireless intern

Answers

Answer:

B)

Morse code

Explanation:

Morse code is a communication system developed by Samuel Morse, an American inventor, in the late 1830s. The code uses a combination of short and long pulses – dots and dashes, respectively – that correspond to letters of the alphabet.

Answer:

b

Explanation:

I got it right on the exam. Morse code is your answer.

Need Help On this one two anybody !! pls

Answers

Answer:

26. Single Displacement

27. Synthesis

28. Decomposition

29. Combustion

30. Double Displacement

31. Combustion

32. Double Displacement

33. Decomposition

Explanation:

Hope it helped!

One way to determine if a rock sample is metamorphic is by:
a.
finding fossil evidence
c.
noting a crystalline structure in its particles
b.
noticing light and dark color bands
d.
all of the above

Answers

One way to determine if a rock sample is metamorphic is by "noticing light and dark color bands."

The amount of kinetic energy something has depends on its...
A) mass and speed
B) mass and height
C) mass and weight

Answers

Answer:

it depends on mass and speed

PLEASE HELP ME WILL DO ANYTHING ‼️‼️


A fluorine atom has 9 electrons. Draw the Bohr model for fluorine using the pattern you observe for the Bohr models for hydrogen helium, oxygen and neon

Answers

Answer:

In first shell 2 electrons are present and 7 electrons are present in last shell

Explanation:

How many moles are in 0.532g Ca(OH)2?

Answers

Answer:

0.0072mole

Explanation:

Given parameters:

Mass of the compound given  = 0.532g

Unknown:

Number of moles  = ?

Solution:

To solve this problem, we need to use the expression below:

       Number of moles  = [tex]\frac{mass}{molar mass}[/tex]

Molar mass of Ca(OH)₂   = 40 + 2(16 + 1)  = 74g/mol

   Number of moles  = [tex]\frac{0.532}{74}[/tex]   = 0.0072mole

What is the definition chemical property of matter?

Answers

Answer:

Describes its potential to undergo some chemical change or reaction by virtue of its composition

Which of the following is included in the study of Geology?

a : the composition of the sun
b : the composition of air
c : the composition of water
d : the composition of the materials that make up the planet

Answers

D: the composition of the materials that make up the planet
d : the composition of the materials that make up the planet

The balanced equation for the combustion of ethanol (ethyl alcohol) is: C2H5OH(l) + 3O2(g) ---> 2CO2(g) + 3H2O(g) How many mol of O2 will react with 7 mol of ethanol?

Answers

Answer:

21 mol of O₂ will react

Explanation:

Based on the combustion of ethanol:

C₂H₅OH(l) + 3O₂(g) → 2CO₂(g) + 3H₂O(g)

1 mole of ethanol, C₂H₅OH reacts with 3 moles of O₂

With this ratio of 1 mol C₂H₅OH / 3 moles O₂ we can solve the moles of O₂ that react with 7mol of ethanol:

7 mol C₂H₅OH * (3mol O₂ / 1 mol C₂H₅OH) =

21 mol of O₂ will react

Which reagent is the limiting reagent in a reaction?
A. The one with the largest molar mass
B. The one with the largest coefficient
C. The one with the smallest coefficient D. The one that runs out first in the reaction​

Answers

Answer:

D. The one that runs out first in the reaction

Explanation:

Limiting reagent is the one that limit the yield of product because of its lower amount and run out first. Lets take an example,

Mass of calcium carbonate = 25 g

Mass of hydrochloric acid = 13.0 g

Mass of calcium chloride produced = ?

Chemical equation:

CaCO₃ + 2HCl  → CaCl₂  + H₂O + CO₂

Number of moles of CaCO₃:

Number of moles of CaCO₃ = Mass /molar mass

Number of moles of CaCO₃= 25.0 g / 100.1 g/mol

Number of moles of CaCO₃ = 0.25 mol

Number of moles of HCl:

Number of moles of HCl = Mass /molar mass

Number of moles of HCl = 13.0 g / 36.5 g/mol

Number of moles of HCl = 0.36 mol

Now we will compare the moles of CaCl₂ with HCl and CaCO₃ .

                  CaCO₃      :               CaCl₂

                  1               :               1

                 0.25           :            0.25

                HCl              :                CaCl₂

                 2                :                 1

                 0.36            :               1/2 × 0.36 = 0.18 mol

The number of moles of CaCl₂ produced by HCl are less it will be limiting reactant.

Answer:

D. The one that runs out first in the reaction​

Explanation:

it was right

Magnetism is always present when electric charges ___________.

Answers

Answer:

begin to move

Explanation:

When electric charges begin to move, this is when magnetism takes place.

Hope this helped!

how is copper sulphate different to copper sulphide in terms of the elments it contains

Answers

Answer:

An Element is a substance made up of only one type of atom as like gold, copper, oxygen, etc.

Copper sulphate with molecular formula [tex](CuSO_4)[/tex], the elements are copper, sulphur and oxygen. It is formed by combination of [tex]Cu^{2+}[/tex] cation and [tex]SO_4^{2-}[/tex] anion.

Copper sulphide with molecular formula [tex](CuS)[/tex], the elements are copper and sulphur. It is formed by combination of [tex]Cu^{2+}[/tex] cation and [tex]S^{2-}[/tex] anion.

Look at the activity series and select which two of the following reactions
would happen on their own. (Remember, if the lone element is more active
than the metal in the compound, the lone element will react and replace the
metal in the compound.)
The Activity Series
Most Active
Lithium (Li)
Potassium (K)
Calcium (Ca)
Sodium (Na)
Aluminum (AI)
Zinc (Zn)
Iron (Fe)
Tin (Sn)
Lead (Pb)
(Hydrogen) (H)
Copper (Cu)
Silver (Ag)
Gold (Au)
Least Active
O A. 2Li + ZnBr2 + 2LiBr + Zn
B. 3Ca+ Al2O3 + 2Al + 3Cao
C. Al +3LICI - AlCl3 + 3Li
D. Sn + ZnSe → SnSe + Zn

Answers

Answer:

b

Explanation:

because the correct answer

1- The element sodium has an atomic number of 11 and a
mass number of 12.
How many protons does sodium have?

Answers

Answer and Explanation:

Sodium has 11 protons.

To know how many protons are in an element on the periodic table, all you have to do is look at the atomic number. The atomic number is the same as the amount of protons.

The amount of protons defines the element, which is why it appears on the element description as the atomic number.

Hope this helps!

#teamtrees #WAP (Water And Plant)

You have 50 L of CO2 gas at standard temperature and pressure (STP). What would need to be done to the pressure to cut the volume of gas in half?

Answers

The pressure is doubled(2 atm)

Further explanation

Given

50 L of CO₂ gas at STP

Required

The pressure

Solution

Changing pressure, constant temperature⇒Boyle's Law

At a fixed temperature, the gas volume is inversely proportional to the pressure applied  

[tex]\tt \rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}[/tex]

STP⇒1 atm, T=273 K

The (new) volume of gas in half, so V₂=0.5 V₁ = 0.5 x 50 = 25 L

Because the gas volume is inversely proportional to the pressure than the pressure doubled = 2 atm

Or we can use the formula :

P₂=(P₁V₁)/V₂

P₂=(1 atm x 50 L)/25 L

P₂= 2 atm

*CHEMISTRY*
An atom was determined to have an electron configuration of 2-5. This atom should have a Lewis dot diagram with....
O 7 dots
O 5 dots
O 2 dots
O 1 dot

Answers

5 dots since the lewis dot diagram only shows the valence electrons (please give me brainliest)

If F1 = 500 N, what does F equal? PLEASE HELP​

Answers

500 because F1 is 500 x 1. Tell me if I’m right. Good luck!

*The diagram has to do with the question*
Pls help

Answers

It’s b






Wgsystststsgdhdb

An isotope becomes more stable by changing the number of what?

Answers

a isotope is atoms of the same element with different amount of neutrons to change the mass. They can become more stable by sharing or giving away electrons to have a stable electron shell

Which feature forms as a result of conduction between magma and water?

Answers

a hot spring is formed as a result of conduction between magma and water.

Answer:

h

Explanation:

get into

Which ecological level has the most organisms
individual, population, or community?

Answers

a community.

individual organisms is just a single organism. a population is the total amount of an organism in a place (ex. the population of foxes in a forest). a community is every organism in a place (ex. the foxes, birds, plants, beetles, and so on in a forest).

1. When a liquid becomes vapor, its gas particles begin to exert...
a. air pressure.
c. vapor pressure.
b. equilibrium pressure.
d. no pressure​

Answers

Answer:

vapor pressure.

Explanation:

Answer:

I think it is vapor pressure or air pressure

state the difference between isotopes and isobars​

Answers

Answer:

Isotopes:- these are those elements in which atoms are same but mass number is different. for eg:- 12^C 6.

____________________________________________________________________________

Isobars:- these are those elements in which mass number is same but atoms are different. for example:- 2^Ca 18.

96.0 g. of a gas occupies 48.0 L at 700.0 mm Hg and 20.0 °C. What is its molecular weight?

Answers

Answer:

I hope this helps 52.2 g/mol

Explanation:

1) Solve for the moles using PV = nRT:

n = PV / RT

n = [(700.0 mmHg / 760.0 mmHg atm¯1) (48.0 L)] / [(0.08206 L atm mol¯1 K¯1) (293.0 K)]

n = 1.8388 mol

2) Divide the grams given (96.0) by the moles just calculated above:

96.0 g / 1.8388 mol = 52.2 g/mol

Molecular weight of the gas is 52.2 g/mol.

What is ideal gas equation?

Ideal gas equation is a hypothetical equation which tells about the behavior of the gas under standard condition and it ca be described as:

PV = nRT, where

P = pressure = 700.0 mm Hg (given)

V = volume = 48.0 L (given)

R = universal gas constant = 0.08206 L atm mol¯¹ K¯¹

T = temperature = 20.0 °C = 293 K

On putting theses values in the above equation we get for moles is as:

n = (700 × 48) / (0.08206 × 293) = 1.8 moles

We know that moles can be represented as:

n = W / M, where

W = given weight = 96g

M = molecular weight = to find?

Putting values in the mole equation, we get

M = 96 / 1.8 = 52.2 g/mol

Hence, molecular weight of gas is 52.2 g/mol.

To know more about ideal gas equation, visit the below link:

https://brainly.com/question/1056445

A coiled spring with coils that are closely spaced then widely then closely then widely then closely, ending with a yellow line labeled 1 second. What is the frequency of this wave?

Answers

Answer:

The frequency of the wave is 2Hz.

Explanation:

The frequency of a wave is the number of waves that pass a fixed point in a given amount of time. It can be measured by counting the number of crests that pass the point in a given time period. The higher the number is, the greater is the frequency of the wave.

So, by counting the number of times the coils in the spring are widely spaced, which is 2 times in 1 second, we get the frequency of the wave.

Answer:

The answer is 2.

Explanation:

Hope this helps ;)

How much heat is required to melt 20 g of gold at 1064.18 °C with a heat of fusion of 64 J/g *

Answers

Answer:

1280J are required.

Explanation:

Heat of fusion is defined as the amount of heat required to change its state from liquid to solid at its melting point at constant pressure.

As heat of fusion of gold is 64J/g, there are required 64J to melt 1g of gold at its melting point. The energy required to melt 20g is:

20g * (64J/g) =

1280J are required

QUICKKKK How much of the protein consumed by humans around the world is fish? 5 percent 20 percent 40 percent 50 percent

Answers

Answer:

20%

Explanation:

I HOPE THIS HELPS YOUUUU

Answer:

20%

Explanation:

How do you separate a mixture of sodium chloride and potassium trioxonitrateV

Answers

Answer:

See explanation

Explanation:

We separate substances based on their important properties such as reaction to heat, solubility in water, magnetic properties, etc.

To separate sodium chloride and potassium trioxonitrateV, we need to heat the solution. KNO3 dissolves at a high temperature and crystallizes out as the solution is cooled.

Hence when we heat the solution, KNO3 dissolves, as we cool the solution, solid KNO3 crystals are obtained while NaCl remains in solution.  We have now separated the two salts in the solution.

Note that the solubility of NaCl is almost independent of temperature.

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