an inexperienced student adds a solution of catalytic h2so4 and water to the alkene shown below, expecting to produce 1-cyclobutylethan-1-ol.

The rearrangement produces a more stable tertiary carbocation and the unexpected product.

In the image shown, the substrate is 1-cyclobutylethene. The attack of H2SO4 and water will lead to the conversion of the alkene to an alkanol. Two possible products may be obtained with one being greater than the other.

The unexpected product (Shown in the image attached) is obtained due to rearrangement of the carbocation intermediate. The rearrangement produces a more stable tertiary carbocation and the unexpected product.

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what is the answer to this:magnesium+oxygen

Which objects are scratched?

An atom, X, contains 16 protons.
Which statement about Z is correct?Explain why.
A) It cannot form an ion.
B) It contains 6 electrons in the outer shell.
C) It contains 6 neutrons.
D) It had relative atomic mass of 16.

What is the energy of a photon emitted when an electron in a hydrogen atom relaxes from an orbital in ni

JWhat type of evidence is gathering information through your senses or using scientific tools?

Predictions
Results
Scientific research
Observations

can someone plaexplain to me what is 'first ionisation energy' in simple words coz my small brain can't understand it​

A model for a potential chemical reaction is shown here. Evaluate the model and the reaction shown. Which statements are correct about this model. Select ALL that apply.

A) The law of conservation of matter is followed in this model.

B) Conversation of matter is not observed because of some of the atoms are converted into energy in the reaction.

C) Conservation of matter is observed because there are the same number of each atom on both sides of the reaction.

D) Conservation of matter is not observed because there are different numbers of molecules in the reactants and the products. ​

liquid bromine easily evaporates. explain what happens to the particles when a liquid evaporates​

The
( )state is the lowest possible energy level that an electron can occupy.
When the electron gains energy, it may move to a higher energy level. This is called the( )
state

Why does in the golf stream warm and provide it’s Rhode Island or Bangor Maine

if 15 grams of carbon is present at the beginning of a reaction,how many grams of carbon will be present in the products?

which is a better conductor of eclectic current: a solid ionic compound or a melted ionic compound

what are colloids ? ​

An ion of iron has an 26 protons, 30 neutrons, and 23 electrons. What are its atomic number, atomic mass, and net charge?

Four substances at the same temperature absorb equal

amounts of energy. The specific heat of the four

substances are listed below.

Substance

A. 1.45 J/g °C

B. 2.32 J/g °C

C. 0.98 J/g °C

D. 1.95 J/g °C

Which substance would show the GREATEST increase in

temperature?

A

B

C

D

What is friction? A _______ between an object and the _______ it's moving over.

what happens when ice changes to water the link up of the atoms

What is mechanical energy?

The energy that is associated with the motion or position of an object
The energy that travels in waves from the moon
Any energy that travels through a medium like water
The stored energy in a substance like oil or gasoline

Question 1 (2 points)
Which option can be classified as a pure substance?

Question 1 options:

heterogenous mixture


solution


homogenous mixture


compound

Question 2 (2 points)
Law of conservation of mass states that:

Question 2 options:

matter is destroyed


matter does not change


matter is neither created nor destroyed


matter is created

Question 3 (2 points)
What is a property of bases?

Question 3 options:

all of the above


Sour taste


Slippery touch


Ability to form hydronium ions+

Question 4 (2 points)
Which property do solutions with low pH values have?


What does it mean to have a neutral pH? - Aseptic Health

Question 4 options:

have a -OH group


feels slippery


turns litmus paper blue


tastes sour

Question 5 (2 points)
How do the products of chemical reactions compare to their reactants?

Question 5 options:

The products often have completely different properties than the reactants.


The products are usually more toxic than the reactants.


The products usuallyhave more mass than the reactants.


The products usually have more atoms than the reactants.

Question 6 (2 points)
Which of the following is an example of a physical change?

Question 6 options:

Water freezing into ice.


A piece of wood burning.


A toy car rusting.


Zinc producing hydrogen gas when mixed with water.

Question 7 (2 points)
What might happen if you mixed a strong acid with an equally strong base?

Question 7 options:

You would see an explosive chemical reaction.


The base would destroy the acid.


You'd wind up with a pH-neutral salt and water.


The acid would destroy the base.

Question 8 (2 points)
In the equation shown, what are the reactants?

2H2+O2àH2O

Question 8 options:

Hydrogen and oxygen molecules (2H2 and O2 )


Ice crystals


Hydrogen atoms (H)


Water molecules (H2O)

Question 9 (2 points)
Which phrase most accurately describes a chemical change?

Question 9 options:

A change in form


A change in taste


A change on the molecular level


A change in appearance

Question 10 (2 points)
What does it mean when there is a physical change?

Question 10 options:

A new substance has been formed.


Matter has changed from one substance into a new substance.


Matter has changed size, shape or form


Matter has changed on the molecular level.

help pls ill give 20 points!

please help me with this

Explain why silver iodide, Agl, a compound used in
photography, has a much higher melting point than
vanillin, C,H,O3, a sweet-smelling compound used
in flavorings.

A solid magnesium flare has a mass of 1300 g and a volume of 743 cm3. What is the density of the magnesium?

Please help I’ll give brainlist who ever answers I just want the answer so please help!!

Having studied the data for patterns and trends, you should now be able to draw
some conclusions about how knowing the half-life of the element Lokium would
help you determine the absolute age of rock in which this element is found. In a
paragraph, create an imaginary example of finding a given amount of Lokium and
DOL in a rock, and then determining the absolute age of that rock. Assume that
each trial represents 1,000 years

What is the mass of 2.49 moles of sucrose?

as liquid or gases heat up, they ___________. Then as they___________ they fall, thus As liquid or gases heat up, they driving the motion the of convection.


A: Fall, Heat
B: Bubble, Overflow
C: Create Heat, Burn
D: Rise, Cool



Help please its okay if not <3 ​

How does the microscopic arrangement of particles affect the microscopic behavior of the solution?

Solve the following problems to determine the empirical formula. Show the complete
factors to calculate number of moles, then the molar ration and finally the empirical formula.
1. Calcium bromide is a compound used in photography and the manufactur of fire extinguishing
materials. Analysis of a 20.00 gram sample of calcium bromide yields 4,02 grams of calcium and
15.95 grams of bromine. Calculate the number of moles of both calcium and bromide, then
determine the mole ratio to write an empirical formula for calcium bromide,

Which solution has the greatest number of hydrogen ions? blood, pH = 7. 2 lemon juice, pH = 2 soda, pH = 3. 5 bleach, pH = 13. 5.

I need uses of acid-base indicators