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
kati45 [8]
3 years ago
10

How is a mixture different from a compound? 1. Particles of a mixture are combined chem2. Components of a mixture can be sepa- r

ated by physical means. 3. Composition of a mixture may be con- stant. 4. Components of a mixture can only be separated chemically.
Chemistry
1 answer:
wariber [46]3 years ago
3 0

Answer:

2. Components of a mixture can be separated by physical means

Explanation:

The Compound is defined as the substances that are chemically combined while mixtures are the substances in which two or more compounds are physically combined together.

The difference between compound and mixture from the given options is that mixture can be separated physically unlike compounds.

In a mixture, two or more compounds can be mixed in any proportion that can be separated by physical means. For example: salt from seawater (mixture) can be separated evaporation and nails from the mixture of sand and iron can be separated through magnetic separation.

Hence, the correct answer is "Components of a mixture can be separated by physical means".

You might be interested in
The vapour pressure of pure benzene at 20 °C is 75 Torr and that of pure methylbenzene is 25 Torr at the same tempera-ture. In a
ss7ja [257]

Answer:

Benzene: 37.5 Torr

Methylbenzene: 12.5 Torr

Explanation:

By Raoult's Law, each substance in a gas mixture contributes to the total pressure of the mixture proportionally to their respective mole fraction. So,

Ppartial = x*P°

Where x is the mole fraction (0.5 for each one because it's equimolar), and P° is the vapor pressure.

Benzene: Ppartial = 0.5 * 75 = 37.5 Torr

Methylbenzene: Ppartial = 0.5 * 25 = 12.5 Torr

3 0
3 years ago
Which statement describes where oxidation and reduction half-reactions occur in an operating electrochemical cell?(1) Oxidation
emmainna [20.7K]
The answer is (3), oxidation occurs at the anode and reduction occurs at the cathode. That's because the oxidation reaction can lose electrons and reduction can gain electrons.
3 0
4 years ago
Read 2 more answers
Why is the boiling point of 2 nitrophenol different from that of 4 nitrophenol
Ivanshal [37]

Answer:

See explanation

Explanation:

The nature of hydrogen bonding in 2- nitrophenol and 4- nitrophenol is quite different.

In 2- nitrophenol, there is intramolecular hydrogen bonding.  As a result of this, the compound has a low boiling point.

Then in 4- nitrophenol, there is intermolecular hydrogen bonding. This accounts for molecular association and higher boiling point in 4- nitrophenol.

5 0
3 years ago
Who is Scavenger and how does it work ​
kolezko [41]
Scavengers are animals that consume dead organisms that have died from causes other than predation. While scavenging generally refers to carnivores feeding on carrion, it is also a herbivorous feeding behavior. Scavengers play an important role in the ecosystem by consuming dead animal and plant material.
6 0
3 years ago
Draw the major addition product of the acid-catalyzed hydration of 4-ethyl-3,3-dimethyl-1-hexene.
kipiarov [429]

Here we have to draw the major product in the acid catalysed hydration reaction of 4-ethyl-3,3-dimethyl-1-hexene.

The 4-ethyl-3,3-dimethyl-1-hexene converts to 2-hydroxy-4-ethyl-3,3-dimethyl-1-hexane as a major product by acid catalyzed hydration reaction.  

The acid catalyzed hydration of an alkene is the Sn¹ reaction. Where in the first step a carbocation is generated. The stability of the carbocation depends upon the position of the neighboring group having +I inductive effect.

In the next step the water molecule attack the carbocation and the corresponding alcohol is produced.

In 4-ethyl-3,3-dimethyl-1-hexene the carbocation formed in the C₂ position which is more stable than the C₁ position due to presence of the dimethyl and ethyl group in the neighboring position which have strong +I inductive effect. This is absence in C₁ position.

In the next step the water molecule attack the C₂ position to form the alcohol.

4-ethyl-3,3-dimethyl-1-hexene converts to 2-hydroxy-4-ethyl-3,3-dimethyl-1-hexane by acid catalyzed hydration reaction which is the major product along with 1-hydroxy-4-ethyl-3,3-dimethyl-1-hexane as a minor product.

The reaction mechanism is shown in the image.          

7 0
3 years ago
Other questions:
  • The beaker shown below contains a 0.58 M solution of dye in water. How many moles of dye are there in the beaker?
    6·2 answers
  • True or False? In a C++ floating-point constant, a decimal point is not required if exponential (E) notation is used.
    11·1 answer
  • Which element, under normal circumstances, does not combine chemically with other elements to form compounds?
    13·2 answers
  • In what way is DNA a code
    6·1 answer
  • What is the balance of this chemical equation Ca+N2→Ca3N2?
    9·2 answers
  • Hurricanes can be very destructive, bringing tornadoes, flooding, strong winds, and storm surges to the land areas they come in
    5·2 answers
  • The three states of matter are solid, liquid, and gas. true or false
    6·1 answer
  • A student has two solid blocks that have different masses. The student knows that each block is composed of a pure substance, bu
    14·2 answers
  • What do the numbers in a formulae show?
    12·1 answer
  • Differentiate between ideal and non - ideal solutions.<br><img src="https://tex.z-dn.net/?f=%20%5C%5C%20" id="TexFormula1" title
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!