1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
harina [27]
3 years ago
11

PLEASE HELP ME !

Chemistry
2 answers:
tekilochka [14]3 years ago
4 0

Answer:

False

Explanation:

Emectromagnetic waves are slowed down by even the most transparent of mediums.

Anna11 [10]3 years ago
3 0

Answer:

False

Explanation:

You might be interested in
Why is not used at nuclear plant as a soverce for electrical energy
nikitadnepr [17]
The biggest reason is radioactive wastes. Nuclear power generated radioactive wastes like Uranimum, plutonium and amercium that inhibits gene expression and causes cancer to the environment. Nuclear plants use to release these wastes into the oceans, and it causes fishes to exhibit gender change, 3 eyes, 2 tails etc. The impact on human shows signs of serious blood, liver and lung cancers. 

There are currently no way to get rid of these wastes as they take hundred thousands of years to decompose. 

Another reason is they cause a small amount of green gas emission. Releases CO2 to the sky. They exhibit radioactive gas emission as well (causes cancer) .
7 0
3 years ago
Draw the major organic product for the reaction of 1-phenylpropan-1-one with the provided phosphonium ylide.
prohojiy [21]

Answer:

2-methylene propylbenzene

Explanation:

The Wittig Reaction is a reaction that converts aldehydes and ketones into alkenes through reaction with a phosphorus ylide.

The ketone in this case is 1-phenylpropan-1-one. The provided phosphonium ylide is shown in the image attached. The reaction involves;

i) alkylation  

ii) addition

The product of the major organic product of the reaction is 2-methylene propylbenzene.

4 0
3 years ago
There are two main types of covalent bond breakage. In homolytic breakage (as in Table 9.2, p. 371), each atom in the bond gets
hjlf

The C¬C bond in H₃C¬CF₃ (423 kJ/mol) stronger than that in H₃C¬CH₃ (376 kJ/mol) because of the strong negative inductive effect of fluorine atom

<h3>What is Inductive effect?</h3>

When an electron- withdrawing or an electron- releasing species is allow to introduce to a chain of atoms (generally a carbon chain), according to the species corresponding negative or positive charge is start relayed through the carbon chain by the atoms through which it attached. This makes a permanent dipole to arise in the molecule and is referred to as the inductive effect.

<h3>Types of Inductive effect</h3>

+ inductive effect

- inductive effect

<h3>What is negative inductive effect?</h3>

Whenever an electronegative atom, like halogen, is introduced to a chain of carbon atoms (generally carbon atoms), this results in unequal sharing of electrons which generates a positive charge which is transmitted through the chain.

This make a permanent dipole to arise in the molecule whereas the electronegative atom get a negative charge and the effect is known as the electron-withdrawing inductive effect, or the -I effect.

Thus, we concluded that the C¬C bond in H₃C¬CF₃ (423 kJ/mol) stronger than that in H₃C¬CH₃ (376 kJ/mol) because of the strong negative inductive effect of fluorine atom.

learn more about inductive effect:

brainly.com/question/10817601

#SPJ4

7 0
1 year ago
Wally fluoride is an imaginary gaseous
mihalych1998 [28]

Answer:

\rho =1.96\frac{g}{L}

Explanation:

Hello there!

In this case, since this imaginary gas can be modelled as an ideal gas, we can write:

PV=nRT

Which can be written in terms of density and molar mass as shown below:

\frac{P}{RT} =\frac{n}{V} \\\\\frac{P}{RT} =\frac{m}{MM*V}\\\\\frac{P*MM}{RT} =\frac{m}{V}=\rho

Thus, by computing the pressure in atmospheres, the resulting density would be:

\rho = \frac{165/760 atm * 314.2 g/mol}{0.08206\frac{atm*L}{mol*K}*425K} \\\\\rho =1.96\frac{g}{L}

Best regards!

7 0
3 years ago
What are five signs of chemical change
zlopas [31]

Answer:color change, formation of a precipitate, formation of a gas, odor change, temperature change.

Explanation:

7 0
3 years ago
Other questions:
  • Which type of battery will last longer- Duracell or energizer
    15·1 answer
  • The process by which complex compounds are broken down by enzymes and by which many organic alcohols are formed is called fermen
    10·2 answers
  • Which application of hydrates best relies on the anhydrous compound’s ability to both absorb water and retain water?
    6·2 answers
  • Magnesium has three naturally occurring isotopes with masses of 23.99, 24.99, and 25.98 amu and natural abundances of 78.99%, 10
    5·1 answer
  • How many electrons does one neutrally charged atom of argon have?
    15·2 answers
  • Can everyone help me :)
    8·2 answers
  • Help me please, first one to answer gets a brainliest!​
    12·2 answers
  • You can tell if an object is in motion if ___.
    12·1 answer
  • A cylinder with a mass of 98 grams is made of copper (density 8.94 g/cm³). If the radius of the cylinder is 2.0 cm, what is the
    5·1 answer
  • What is entropy?<br><br><br>Answer this and Have a good day ​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!