Explain why the melting temperature of boron trichloride is much lower than that of sodium chloride​

Answers

Answer 1
Boron trichloride has a simple molecular structure,
whereas sodium chloride has a giant ionic lattice
structure. The ionic bonding between oppositely
charged ions in NaCl is stronger than the covalent
intramolecular bonding in BCl3. Therefore, less energy
is required to break the intramolecular covalent bonds in
BCl3, hence a lower melting temperature.

Related Questions

True or false pls sue tmrps

Answers

Answer:

5. False

Explanation:

Drinking contaminated water causes jaundice

It accounts for the differences in the behavior of particles in different states. *

Answers

Answer:

Matter

Explanation:

Solids, liquids, and gases are the three types of matter that can be found in the world around us today. In solids, all of the particles are close together. They move more in liquids, but they are spread out in gas.

Which of the following liquids has the highest viscosity
A water
B oil
C milk
D honey

Answers

Answer:

honey has the highest viscosity

According to the given option, honey is the liquid that has the highest viscosity. So, the correct option is D.

What do you mean by Viscosity?

Viscosity may be defined as the effects of a liquid by probity of which an internal resistance comes into play when the liquid is in movement and resists the comparable motion between its distinct layers.

Among all the given options, honey possesses more strong intermolecular attractive forces that result in the high compaction of particles in the honey.

After honey, Oil is more viscous followed by milk, and then water.

Therefore, the correct option for this question is D.

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Which statement does not identify a characteristic of antibodies?
A They are produced by the body in response to the presence
of foreign substances.
B They may be produced in response to an antigen.
© They are nonspecific, acting against any foreign substance in
the body.
D They may be produced by white blood cells.

Answers

Answer:

they are produced by the body in response to the presence of foreign substance

BRAINLIEST TO FIRST RIGHT ANSWER

Use the key above to interpret the following incomplete chemical reaction.

Select the statements at apply in order to complete the model. (Choose 3)

A) The number of atoms in the products must be equal to the reactants.

B) One diatomic oxygen should be removed from the reactant side.

C) One unbonded carbon atom should be added to the product side of the equation

D) One carbon atom and two oxygen atoms are needed to balance the equation.

E) One carbon dioxide molecule should be added to the product side of the equation.​

Answers

Answer:

Carbon dioxide molecule

Answer:a , d ,e

Explanation:

jusy took quiz

9.
a
What is the energy of a wave having a frequency of 5.71 x 1013 Hz?

Answers

Answer:

[tex] \huge{3.783 \times {10}^{ - 19} \: J}[/tex]

Explanation:

The energy of the wave can be found by using the formula

E = hf

where

E is the energy

f is the frequency

h is the Planck's constant which is

6.626 × 10-³⁴ Js

From the question we have

E = 6.626 × 10-³⁴ × 5.71 × 10¹³

We have the final answer as

[tex]3.783 \times {10}^{ - 19} \: J[/tex]

Hope this helps you

Draw a table with two columns labelled physical change and chemical change .Write the following changes in the correct column .

water boiling
a car rusting
petrol burning
beer fermenting
ice cream melting
wind blowing
milk turning sour
seawater evaporating
sugar dissolving in tea
food being digested
bleach cleaning a dirty cloth


Answers

Answer:

Explanation:

P = Physical Change

C = Chemical Change

water boiling                         P

a car rusting                           C

petrol burning                          C

beer fermenting                        C

ice cream melting                   P

wind blowing                               P

milk turning sour                             C

seawater evaporating                 P

sugar dissolving in tea                 P

food being digested                         C

bleach cleaning a dirty cloth                

what is the mass of 3.0 x x times 10^23 atoms of neon?

Answers

Answer:

10.09 grams

Explanation:

First you need to know the number of moles you are dealing with.

If you know that each mole has 6.022x10²³ of something (in this case of atoms), you can divide 3x10²³ atoms of neons by 6.022x10²³ to obtain the number of moles.

You have 0.5 moles of Neon, so then by the periodic table, you see that the molar mass of neon is 20.18g/mol, so by each mole you have 20.18 grams of neon. Multiply 20.18 grams by 0.5 moles and you got 10.09 grams of Neon

people tint their car windows to stop what

Answers

Answer:

Reflection

Explanation:

Answer:

b

Explanation:

A teacher places a cup of coffee onto an electronic balance at the front of the science laboratory. The teacher then adds three large teaspoons of sugar to the coffee. The volume of the coffee does not appear to increase. What happens to the mass displayed on the front of the balance?

Answers

Answer:

it will be same as before

Answer:

The mass on the balance stays the same

Explanation:

.

Which chemical reaction occurs between steps 1 and 5?

Answers

The answer is hydrolysis, as water is added to the molecule to break the bond between the parts of the molecule.

Explain why some substances travel further than others.

Answers

Larger molecules take longer to move up the chromatography paper or TLC plate, whereas smaller molecules are more mobile. Likewise, the polarity of the molecules can affect how far the spots travel, depending on the type of solvent used.

[tex]\large\sf\red{♡♡}[/tex]

The ribosomes of plant cells are sites for the synthesis of
(a) ATP (b) nucleic acids (c) sugars (d) proteins

Answers

Answer:

Proteins

Explanation:

Their Function Formation Encoded in mRNA into polypeptide chains of amino acids that produces protein

The ribosome of plant cells are sites for the synthesis of proteins. The correct option is (d).

What are ribosomes?

Ribosomes are organelles that take part in the synthesis of proteins. The prokaryotic cell's ribosomes are smaller than the eukaryotic cell's ribosomes.

Currently, ribosomal RNA is a component of the cell's ribosome or protein-building machinery. The process of making proteins, or translation, is carried out by ribosomes.

The ribosome, which translates the genetic code generated in mRNA into an amino acid sequence, is universally responsible for protein synthesis. The two ribosomal subunits, small and big, come together to form the full ribosome, which is used to produce proteins.

Therefore, the correct option is (d) proteins.

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What is the correct formula
for tin(II) chloride dihydrate?

Answers

the answer is A. SnCl2 . 2H2O

which acids are found In lemon and milk​

Answers

Answer:

lemon- citric acid

milk- lactic acid

Answer:

lemon=citric and malic acids.

milk=Lactic Acid

Explanation:

Write the shape of s and p-orbials.

Answers

s-orbitals are spherical, while p-orbitals are similar to a 3-D infinity symbol. I have attached an image of the comparison.

If the energy of the H–H bond is 452 kJ/mol. The energy of the O=O bond is 598 kJ/mol. The energy of the O–H bond is 367 kJ/mol, which bond would be the strongest? Which bond would be the weakest?

Answers

Taking into account the bond energy, the O=O bond is the strongest and the O–H bond is the weakest.

The bond energy is the average total energy that would be released by the formation of a mole of chemical bonds, from their constituent fragments (all in the gaseous state).

In other words, the normal or standard bond enthalpy is defined as the change in enthalpy or heat released, under standard conditions of 1 atmosphere and 25ºC, that accompanies the reaction of formation of one mole of bonds from the isolated atoms in gaseous state.

The higher the bond energy, the stronger and more stable the bond will be.

So, taking into account all the previous, the O=O bond is the strongest and the O–H bond is the weakest.

Learn more about bond energy:

https://brainly.com/question/14769257?referrer=searchResultshttps://brainly.com/question/18724136?referrer=searchResultshttps://brainly.com/question/14175443?referrer=searchResultshttps://brainly.com/question/13765299?referrer=searchResults

magnesium carbonate and sulphuric acid react to form​

Answers

Answer:

magnesium sulfate + water + carbon dioxide

Explanation:

The Statue of Liberty is composed of copper. The smallest particle of any amount of copper is A) an atom. B) an element. C) a compound. Eliminate D) a molecule.

Answers

an atom because its the smallest thing in the entire world and in all orgnaisms

What does the electron configuration for the noble gases tell us about the elements in the
group

Answers

Answer:That all noble gases will have 8 valence electrons which makes a atom stable

Explanation:

significance of symbol Mg​

Answers

Answer:

Magnesium

Magnesium is used in products that benefit from being lightweight, such as car seats, luggage, laptops, cameras and power tools. It is also added to molten iron and steel to remove sulfur. As magnesium ignites easily in air and burns with a bright light, it's used in flares, fireworks and sparklers.

I hope this helps you !!
It’s magnesium and magnesium is magnetic

Definition for starch in science ?

Answers

Answer:

Starch is a polysaccharide comprising glucose monomers joined in α 1,4 linkages. orStarch is a long-chain polymer of glucose molecules joined together. orA starch is a complex polysaccharide made up of a large number of glucose units joined together by glycosidic bonds.

Explanation:

starch, a white, granular, organic chemical that is produced by all green plants. Starch is a soft, white, tasteless powder that is insoluble in cold water, alcohol, or other solvents.

Starch is amongst the most abundant plant products and is a mixture of two polymers, amylose and amylopectin. During food processing starch is transformed by hydrothermal treatments. ... The structure of starch is also influenced by specific and non-specific interactions with other food constituents and ingredients.

How is the polarity of a bond different from the polarity of a molecule?

Answers

Answer:

A polar bond is one where the charge distribution between the two atoms in the bond is unequal. A polar molecule is one where the charge distribution around the molecule is not symmetric. It results from having polar bonds and also a molecular structure where the bond polarities do not cancel.

Explanation:

How many molecules are present in a sample that is 89 g of H2O?

Answers

Mass of H₂O (water) is 89 g and we are asked to find number of molecules present in 89 g of H₂O.

Explanation :-

[tex]\qquad[/tex][tex] \pink{\bf\longrightarrow { Molar \:mass \:of \:H₂O:-} }[/tex]

[tex]\qquad[/tex][tex] \sf \longrightarrow 1\times +16[/tex]

[tex]\qquad[/tex][tex] \sf \longrightarrow 18g[/tex]

[tex]\qquad[/tex]____________________

Let's calculate the number of moles present in 89g of H₂O.

[tex]\qquad[/tex][tex] \purple{\bf\longrightarrow { No \:of \:moles = \dfrac{Given \:mass}{Molar\: mass}}}[/tex]

[tex]\qquad[/tex][tex] \sf \longrightarrow \dfrac{89}{18}[/tex]

[tex]\qquad[/tex][tex] \sf \longrightarrow 4.94\: moles[/tex]

We know

Avogadro number = 6.022×10²³

Number of molecules:-

[tex]\qquad[/tex][tex] \purple{\bf \longrightarrow No \: of \: moles \times Avogadro \: number}[/tex]

[tex]\qquad[/tex][tex] \sf \longrightarrow 4.94×6.022×10²³[/tex]

[tex]\qquad[/tex][tex] \sf \longrightarrow 2.98 ×10²⁴[/tex]

[tex]\qquad[/tex][tex]\purple{ \bf \longrightarrow 2.98×10²⁴ molecules}[/tex]

Thus, 2.98×10²⁴ molecules are there in 89g of H₂O.

[tex]\qquad[/tex]____________________

hydrofluoric acid
What’s the formula

Answers

Hydrofluoric acid/Formula

______________________

HF

______________________

o0o0o0o0o0o0o0o0o0o0o0

Why do trees not yet colonize the island?

Answers

Because we humans keep taking them down

cellus
A student measures the acidity of a solution and
concludes that it has a pH of 2.70. However, the
seller claims that its pH is 3.20. What is the
percent error in the student's measurement?

Answers

Answer:

15.63%

Explanation:

The formula of error percentage is:

([experimental value-real value]/real value)100%

You divide the subtraction of the absolute value of experimental value (the one you got during a experiment) and the one that's "proven" to be right by again, the proven value. You got a decimal and all you have to do is multiply it by 100%

Answer:

on acellus the answer is 16%

I hate acellus

Explanation:






please please answer this question!!!!!!​

Answers

cell membrane - phospholipd bilayer

pigmented - chloroplasts

chloroplasts - oval shaped with two membranes

rectangular or cubed - plant cell

nucleus - control centre

hope that's what you are looking for

Part A
What question is being asked through this scientific investigation?
(I didn’t know what subject so sorry, also only answer if u have an answer.)

Answers

pretty sure it’s to see whether carbon dioxide is formed in each bottle so if it does form then the balloon would expand

Answer:

How will the ingredients effect the fermentation of each bottle? What will happen to the bottles and balloons when fermentation occurs?

Explanation:

the method of mass production that developed during the nineteenth century was a process that

Answers

Answer:

Relied on the use of power driven machinery

Explanation:

Its because the machines would increase the mass productivity of goods

Other Questions
During 2011, Gum Co. introduced a new product carrying a two- year warranty against defects.The estimated warranty costs related to dollar sales are 2% within 12 months following the sale and 4% in the second 12 months of the sale.The sale and actual warranty expenditures for the years ended December 31, 2011, and 2012 are as follows:SalesActual warranty expenditures2011150,0002,2502012250,0007,500Total400,0009,750What amount should Gum report as warranty expense on its 12/31/2012 Income Statement? URGENT simplify (5^3 x 5^5)^5 I don't know the answer to y=48,000(1-13.2)6 Please due today by 10:00 Question # 10Multiple ChoiceA team member that can serve as a point of contact for the team can _____.facilitate patient information flowimprove patient satisfactionresult in better patient complianceall of the above USE THE DIATRIBUTIVE PROPERTY TO WRITE 6(W+5) AS AN EQUIVALENT EXPRESSION What is (f g)(x)f(x)= -3x^2-5xg(x)=5x AMIGOS AND AMIGAS PLS HELP MY POOR BRAIN ILY FAM:1) 8+ 9p = 9p - 72) 2(3x + 6) = 3(2x - 6) The camp cook needed 2172 ounces of juice each day each carton of juice contains 64 ounces the Cook estimated that he needed 30 cartons of juice each day which expression proves that his estimate is incorrect Maximum s-character is observed ina) Triple bonded carbon atom b) Double bonded carbon atomc) Single bonded carbon atom d) Carbon atom of benzene 11. A bank teller has a total of 124 bills in five-dollar bills and ten-dollar bills. The total value of themoney is $840. How many ten-dollar bills does she have? x+y=15- 2x+5y=-2solve the system of equations please answer ill name you brainliest What are the terms in this expression: x + 7 - 3x + 6y (Check all that apply)A is x B is -4C is -3xD is 6yE is +7 a player pays $15 to play a game in which a chip is randomly selected from a bag of chips. the bag contains 10 red chips, 4 blue chips, and 6 yellow chips. the player wins $5 if a red chip is selected, $10 if a blue chip is selected, and $20 if a yellow chip is selected. let the random variable x represent the amount won from the selection of the chip, and let the random variable w represent the total amount won, where w=x15. what is the mean of w ? 6 Rewrite the following sentences using adverbs instead of adjectives to describe the action.A) her shouts were desperate B)the collision of the two objects was violent C)her grip on the controls was tight D)his speech was quite PLEASE HELP!!Gastric secretion would include all of these exceptA. pepsinogenD. mucousE. gastrinC. CCKB. HCl The original goals of a social movement are sometimes swept aside during the a. Bureaucratization stage. C. Institutionalization stage. B. Legitimation stage. D. Agitation stage. Please select the best answer from the choices provided A B C D. what virus cycle causes immediate infection I need help can someone help which integer represents 8c below 0?immersive reader (1 point)