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
marysya [2.9K]
3 years ago
12

A compound differs from a mixture in that a compound always has a?

Chemistry
2 answers:
Rus_ich [418]3 years ago
6 0

Answer : Option 1) Homogeneous composition.

Explanation : A compound that differs from a mixture in that a compound is always has a homogeneous composition.

As separation of mixture can be done by any of the physical methods,, but a compound needs a chemical methods to be separated as it is homogeneous in composition. The components of a compound are formed by reacting chemically with each other, whereas in mixture they are just mixed together.


MissTica3 years ago
3 0
1 is the answer because I studied science it's right number 1 is the correct one homogeneous composition
You might be interested in
A beaker contains 100.0 mL of pure water. A second beaker contains 100.0 mL of seawater. The two beakers are left side by side o
shusha [124]

Answer: The beaker in which water level has decreased more is the one that contains pure water.

Explanation: Even when water is not heated it can evaporate, that is because molecules move at different speed and those that are closer to surface can break the gass pressure and scape as water vapor.

The movement of molecules of water can be affected by the presence of solutes (salts or other soluble compounds) and increase the evaporation temperature. For this particular case, molecules of salt atract the water molecules (remember salt has ions and water is a dipole with partial charges) and do not let the water move freely which avoid them to scape to the surface.

3 0
3 years ago
How many moles of carbon are in 7.00 x 1023 atoms of carbon?
Andru [333]

Answer:

<h2>1.16 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{7 \times  {10}^{23} }{6.02 \times  {10}^{23} }  =  \frac{7}{6.02}  \\  = 1.162790....

We have the final answer as

<h3>1.16 moles</h3>

Hope this helps you

8 0
3 years ago
How many moles are there in 814.504 g of H2O?
earnstyle [38]
First you need to calculate the molar mass of H2O. To do that, look at the periodic table and add up the AMUs (atomic mass units) 

H = 1.01
O = 16.0 

1.01 • 2 + 16.0 = 18.02 

Next, use stoichiometry to convert grams into moles. To do that, divide 814.504g by the number of grams in one mole of H2O.

814.504 ÷ 18.02 = 45.2 moles 

There are 45.2 moles in 814.504 grams of H2O.
6 0
4 years ago
Can anyone help me in my chemistry homework?​
sdas [7]

Answer:

what is in your chemistry home work I can try for...

7 0
3 years ago
Read 2 more answers
Find the density of a substance whose volume is 10.0 mL and whose mass is 5.000 g
scoray [572]

Answer:

.5 gm / ml

Explanation:

Density is defined as   mass/ volume

  so   density of this substance is   5 gm / 10 ml =  .5  gm/ ml

5 0
2 years ago
Other questions:
  • Jonathan claims that since only humans can read, it must be an inherited trait, passed from human parents to their children. Is
    5·1 answer
  • Acids will corrode most _____.<br> bases<br> liquids<br> metals<br> gases
    15·2 answers
  • What is the law of reciprocal proportion​
    14·1 answer
  • Van der Waals forces can best be describes as attrctive or repulsive forces that are formed
    10·1 answer
  • In a neutralization reaction, 24.6 mL of 0.300 M H2SO4(aq) reacts completely with 20.0 mL of NaOH(aq). The products are Na2SO4(a
    7·1 answer
  • Is vinegar in water a true solution, suspension or colloid
    8·1 answer
  • Which of the following characteristics indicates that an atom is unstable?
    14·2 answers
  • What do you understand by valency electron and valency shell?​
    8·1 answer
  • Please help!!
    9·1 answer
  • Classify each of the following as a homogeneous or heterogeneous substance.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!