Chemistry High School

I need the circle question to be answered please help me this.
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I Need The Circle Question To Be Answered Please Help Me This.

Answers

Answer 1

Answer:

(iii):

Reaction 1: Addition

[ We added chlorine to 2-propene ]

Reaction 2: Substitution

[ We substituted hydroxyl ion with chloride ion ]

Reaction 3: Oxidation

[ Acidified permanganate solution is a strong oxidizing agent. So we oxidized propanol to propanoic acid ]

Reaction 4: Acid - base

[ A base (Sodium hydroxide) is added to an acid (propanoic acid) to form a neutral salt ( Sodium propanoate ) ]

Related Questions

chemistry A Gases unit test

Answers

Answer:

gas is composed to particles and has a mass.

What is responsible for the unusual chemical properties of water?

Answers

Answer:

hydrogen bonds

Explanation:

pls choose it as brianliest

The unusual chemical properties of water is due to its polar covalent bond.

What is polar covalent bond ?

When atoms with differing electronegativities are shared between two atoms in such a covalent link, the result would be a polar covalent bond.

What is water ?

Water is a kind of mixture of hydrogen and oxygen . Its chemical formula will be [tex]H_{2}O[/tex].

Along with its polar covalent connections, water displays a variety of interesting features. Because oxygen has a higher electronegativity than hydrogen, electron pairs were drawn closer to the oxygen atom, causing it to be partially negatively charged. As a result, both hydrogen atoms acquire a slightly positive charge.

Therefore, polar covalent bond will be responsible for unusual chemical properties of water.

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what are colloids ? ​

Answers

A solution in which the size of solute particles is intermediate between those in true solution and suspension is called as Colloids.

Answer: A colloid is a mixture in which one substance consisting of microscopically dispersed insoluble particles is suspended throughout another substance.

Hope it helps , have a nice day :>

calculate the number of moles of ethanol acid in 30 cm³of 1 mol dm-³ solution ​

Answers

Answer:

May I assume "ethanol acid is just ethanol (it has one slightly acidic H atom).  If so, the molar mass is 46.02 g/mole.

Explanation:

We have 30 cm^3 [30 ml] of 1.0 M (1 mole/liter)  [1 dm³ = 1 liter].

That is 1 mole/liter.  30 ml would contain (0.030 liter)*(1 mole/1 liter) = 0.03 moles.

20. At STP, an element that is a solid and a
good conductor of heat and electricity
could have an electron configuration of
(1) 2-7
(2) 2-8-8
(3) 2-8-5
(4) 2-8-18-2
20

Answers

Answer:

4

Explanation:

Zinc

When glucose is broken down in an atmosphere where oxygen supply is limited, a 3-carbon compound known as ________ accumulates in the muscle.

Answers

Answer: Lactate!

Explanation:Hope this helps!!!

How many grams of sodium hydroxide are present in 250.0 mL of a 0.300 M NaOH solution?

Answers

4g of NaOH
………………………………….

Explain The element lithium has two common isotopes: Li–6 and Li–7 If the average atomic mass of lithium is 6.94004 u, determine its percent isotopic step by step please urgently

Answers

Answer:

%Li-6 = 5.996% & %Li-7 = 94.004%

Explanation:

let X₁ = Li-6 & X₂ = Li-7 where Xₙ = mole fraction

X₁ + X₂ = 1 => X₁ = 1 - X₂

6·X₁ + 7·X₂ = 6.94004

=> 6(1 - X₂) + 7·X₂ = 6.94004

=> 6 - 6·X₂ + 7·X₂ = 6.94004

=> 6 + X₂ = 6.94004

X₂ = 6.94004 - 6 = 0.94004 => %X₂ = %Li-7 = 94.004%

X₁ = 1.00000 - 0.94004 = 0.05996 => %X₁ = %Li-6 = 5.996%

Question 1 (4 points)
Using the 4 pictures below, write a lab safety rule that could go with EACH of the pictures. You should have 4 rules in total (one for each picture)

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[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Blank # 1 - keep safe distance from the burner

Blank # 2 - Place the equipments on the right place after use

Blank # 3 - perform experiments with proper lab equipment and safety tools

Blank # 4 - Don't break any test tube or lab equipment

(maybe it can be hazardous)

Someone pls help I have no clue what I’m doing
How many atoms of each element are in the compound AgNO3? (Hint: Ag is the
symbol for silver, N is the symbol for nitrogen, and O is the symbol for oxygen.)

Answers

1 silver, 1 nitrogen and 3 oxygen

Subscripts show the number of atoms of each element in a compound

There is no subscript after Ag which shows there is only one silver atom. There is no subscript after N which shows there is only one nitrogen atom. However, there is a 3 in the subscript after O which shows there are 3 oxygen atoms

I WILL MARK BRAINLY-EST Do you think the way we perceive food in our culture supports the guidelines in MyPlate? Explain your

answer

Answers

Yes, some cultures eat healthier due to restrictions on some foods they won’t eat due to their culture. So eating healthier because of that endorses the guidelines on my plate since they push us to eat healthier. One prime example is Japanese culture they believe in a balanced meal and balanced presentation.

What are chemicals that speed up the rate of chemical change?

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Catalysts speed up chemical reactions / changes.

Hope this helps!

What are the features that allow you to identify an ionic compound based on its chemical formula

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Answer:

first identify the cation and write down its symbol and charge. Then, identify the anion and write down its symbol and charge.

Explanation:

Which of the following statements about absolute zero is correct?

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it is a 0 degrees on the Kelvin scale

it is also the lowest on the thermometer

also the particles stop moving and all disorder disappears.

Which of the following requires the most input of energy?



Ovaporizing a substance

O melting a substance

O decreasing the temperature of the substance by 1°C

O raising the temperature of the substance by 1°C​

Answers

Answer:

D ✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔

Why is fluorine more reactive than and bromine

Answers

Answer:

- The Valence/Bonding Electrons (whatever name you address them as) in Flourine are closer to the nucleus than the Valence/Bonding Electrons are in an atom of Bromine.

Explanation:

Hopefully this was helpful!

Which of the following best describes the relationship between a
mutation and a resulting change in the coat color of a mouse?

Answers

Answer:

A I think

Explanation:

How does One determine number of electron domains in molecul or ion

Answers

Answer:

The number of electron domains in a molecule or ion is the number of bonds (double and triple bonds count as one domain) plus the number of nonbonding (lone) electron pairs.

Explanation:

Students in class argue about whether salt (NaCl) or water (H2O) has stronger intramolecular forces. Which argument is BEST?

Question 3 options:

Water because it is a common material and will have stronger intramolecular force.


Water is attracted to salt and salt dissociates, so water has stronger intramolecular forces.


Salt never melted and water has a lower boiling point, so salt has stronger intramolecular forces.


Salt is a solid and water is a liquid, so water has stronger intramolecular forces.

Answers

Since intermolecular forces is stronger in a solid than a liquid, then NaCl has stronger intermolecular forces than H2O.

Intermolecular forces exists between molecules of the same or different kinds. Water has a dipole moment hence it can interact effectively with the ions in NaCl. This leads to an ion dipole interaction that results in the dissolution of NaCl in H2O.

NaCl is a solid and water is a liquid. Since intermolecular forces is stronger in a solid than a liquid, then NaCl has stronger intermolecular forces than H2O.

Hence, the best argument that compares the intermolecular interactions in water and NaCl is; salt is a solid and water is a liquid, so water has stronger intramolecular forces.

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what is the function of the lungs​

Answers

Answer:

the lungs are part of the respiratory system

Explanation:

Allows you to talk and to smell

Oxygen to the cells in your body

and helps you breathe

Answer:

Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe. The respiratory system's main job is to move fresh air into your body while removing waste gases.

Explanation:

Main functions of the lungs : -

Inhalation and Exhalation Are Pulmonary Ventilation - That’s Breathing External Respiration Exchanges Gases Between the Lungs and the Bloodstream.Internal Respiration Exchanges Gases Between the Bloodstream and Body TissuesAir Vibrating the Vocal Cords Creates SoundOlfaction, or Smelling, Is a Chemical Sensation

A species acts as a(n) _____ agent if it gains electrons in a half-reaction. Conversely, it could potentially act as a(n) _____ agent if it loses electrons in a half-reaction.

Answers

A species acts as an oxidizing agent if it gains electrons in a half-reaction. Conversely, it could potentially act as a reducing agent if it loses electrons in a half-reaction.

REDOX REACTION:

Redox (oxidation-reduction) reaction is a type of reaction that involves the loss and gain of electrons by substances involved.

Redox reaction involves a reducing agent and an oxidizing agent. Oxidizing agent gains electrons in a redox reaction while reducing agent loses electrons.

Oxidizing agent gets reduced in the process while reducing agent gets oxidized.

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What is a chemical bond?
A. An intramolecular force holding 2 atoms together
B. An attractive force between 2 molecules
C. A gravitational force holding electrons in their orbits
D. An electrostatic force between a proton and an electron

Answers

A chemical bond is an electrostatic force between a proton and an electron. Hence, option D is correct.

What is a bond?

A chemical bond is what holds atoms together in molecules.

A chemical bond is what holds atoms together in molecules.

Bonds arise from the electrostatic forces between positively charged atomic nuclei and negatively charged electrons (the positions of which in space are determined by quantum mechanics).

Hence, option D is correct.

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___is a measure of the change in velocity of a

moving object.

THIS IS URGENT ! Please fill in the blank

Answers

Acceleration is a measure of the change in velocity of a moving object. :)

what year did ernest rutherford make his discovery

Answers

Answer:

May, 1911: Rutherford and the Discovery of the Atomic Nucleus.

Explanation:

Mark me brainly please.

Which processes could the heating curve be describing? Check all that apply.
boiling
condensation
endothermic reaction
exothermic reaction
freezing

Answers

Answer: condensation, exothermic reaction, freezing

Explanation: Edge

The heating curve could describe processes such as boiling, condensation and freezing.

What is a heating curve?

A heating curve is a plot or graph wherein a substance is subjected to increasing temperature against time to measure the amount of energy it absorbs and changes state with increasing temperature.

Which processes could the heating curve be describing?

boiling. Yes, since matter goes from liquid to gas.condensation. Yes, since matter goes from gas to liquid.endothermic reaction. No, since phase changes are physical changes.exothermic reaction. No, since phase changes are physical changes.freezing. Yes, since matter goes from liquid to solid.

The heating curve could describe processes such as boiling, condensation and freezing.

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mixture requires constant shaking to keep its constituents combined. It is best described as a _____.

homogenous mixture
colloid
suspension
solution

Answers

Answer:

[tex] \tiny \tt \: [/tex]

Suspension

if the column of water in the water barometer rose to a height of 39 feet, what would the atmospheric pressure be in mm hg?

Answers

The atmospheric pressure for a column of water barometer that rose to 39 feet is 874 mmHg

From the given information, to determine the atmospheric pressure at which the column of the water barometer rose, we will need to convert the height of the water column to mmHg.

From the dimensional analysis of standard rate conversion, we know that:

1 feet  = 12 inches

1 inch = 25.4 mm

1 mmHg = 13.6 mm of water.

∴

[tex]\mathbf{\implies 39 \ feet \ of \ H_2O \times \dfrac{12 \ in ch \ H_2O}{1 \ feet \ H_2O} \times \dfrac{25.4 \ mm \ H_2O}{1 \ inch \ H_2O} \times \dfrac{1 mmHg}{13.6 \ mm \ H_2O}}[/tex]

= 874.058 mmHg

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Antoine Lavoisier was able to show that mass wasn't lost or destroyed during chemical reactions by weighing all of the matter in the system before and after reactions occurred. What questions would you ask Lavoisier about how he conducted his investigations?​

Answers

Answer: we can ask simple qs like was it a fair experiment and what he was actually looking for. Other qs include his variables use and that how he has maintained the experiment. Finally we could ask him for his outcome and what it would ahve changed in the near future

Explanation:

what are sources of error for a simple distillation lab? ​

Answers

Answer:

the fractions obtained are not of acceptable purity

Explanation:

anyone have any ideas on what i should draw for my art project please let me know

Answers

Answer:

A pumpkin or a deer cus it's hunting season

Birds, Scenerys, Fish, Planets, Seas, Trees, Butterflys, BTS, Fruits, Cactus! Drawing Ideas: Imagination

Draw an object and give it a face.

Create an alternate cover to your favorite book or album.

Illustrate a scene from your favorite song.

Draw a scene or character from your favorite book.

Illustrate your favorite fairy-tale.

Invent your own insects.

Draw an intricate made up flower.

Hope this helps!

Other Questions
Can somebody give me few things of what women went through in the Progressive Era? Please! A piece of potato had an original mass of 3.2g and after being left in a sugar solution for 24 hours it then had a mass of 2.8g. Calculate the percentage mass decrease of the potato. Bob eats 1/3 of a watermelon one day and 3/8 of it the next day. a) which day did bob ate more watermelon, first or second?b) Find the fraction of the watermelon that remains. I NEED AN ANSWER ASAPRead the sentence from the speech.In this way, any potential opponent would be intimidated, and security, so ardently desired by all of us, brought to us and all of humanity. *A. DespairinglyB. NonchalantlyC. PassionatelyD. Inadvertentl During the 2005 football season,team tackle beat team sack by 10 points. If their combinded scores totaled 36 find the individual team scores [tex] {i}^{3} find \:value \: in \: complex \: number \: [/tex]help me please reply with quickly fefefefdfffgdfedfefefeef1 Question 1 of 10Which action will not protect your credit?A. Disputing errorsB. Considering a credit freezeC. Reviewing credit reports yearlyD. Applying for multiple loans No links please! Which expression has the same value as Look below Which of these is NOT a precedent of George Washington? Question 11 options: serving only two terms neutrality in foreign affairs creating a cabinet abolishing slavery. I need the answer and how you done it please Would anyone be able to help with this? Which equation has the same solution as x^2+16x+13 = 0A) (x+8) ^2 = -77B) (x-8) ^2 = 51C) (x-8) ^2 = -77D) (x+8) ^2 = 51 water has damaged part of this text about an announcement why does gram come down to max's room Several common barometers are built using a variety of fluids. For which fluid will the column of fluid in the barometer be the highest A 5 kg box is sitting on a rough wooden surface. The coefficient of static friction between the box and surface is 0.6. If the normal force on the box is 50 N, calculate the force of friction which must be overcome to move the box. Round your answer to the nearest whole number. every summand of an expression is called a??? PLZ HELP ASAP I WILL GIVE BRAINIEST 5 STARS AND ALL THAT STUFFNO LINKS OR ILL REPORT YOUthank you A publisher needs to send many books to a local book retailer and will send the books in a combination of small and large boxes. Each small box can hold 30 books and each large box can hold 45 books. There were twice as many large boxes sent as small boxes, which altogether can hold 360 books. Graphically solve a system of equations in order to determine the number of small boxes sent, x, and the number of large boxes sent, y.