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
wolverine [178]
3 years ago
14

Which one of the following statements about mixtures is correct [2] [3] The different substances in a mixture are always in a de

finite proportion to cacho A mixture is made up of elements that are chemically combined It is extremely difficult to separate a mixture into different substances A mixture must contain at least two different substances A mixture is always homogeneous.
Chemistry
1 answer:
aivan3 [116]3 years ago
4 0

Answer: Option (4) is the correct answer.

Explanation:

A mixture is defined as a substance that contains two or more different substance that are physically mixed with each other.

If solute particles are evenly distributed in a solvent then it is known as a homogeneous mixture.

For example, salt dissolved in water is a homogeneous mixture.

If solute particles are unevenly distributed into the solvent then it is known as a heterogeneous mixture.

For example, sand in water is a heterogeneous mixture.

Thus, we can conclude that the statement a mixture must contain at least two different substances, is correct about mixtures.

You might be interested in
What is neutralization ?
blagie [28]

Answer:

"a chemical reaction in which acid and a base react quantitatively with each other"

Explanation:

5 0
3 years ago
1 3.1.2
Pachacha [2.7K]

Answer: (Kr) 5s2

Explanation:

Apex

7 0
3 years ago
How many atoms, ions, or molecules are in a 1 molar solution?
Nezavi [6.7K]

Molarity refers to moles/ L. This indicates the concentration of a solution containing solute and solvent.

1 molar solution contains 1 mole of solute in 1 L of solvent.

According to Avogadro's number, 1 mole of a substance contains 6.023 x 10^23 molecules, atoms, or ions.

For this reason, 6.023 x 10^23 atoms, ions, or molecules are in a molar solution.

7 0
3 years ago
An isotope with a mass number of 193 has 116 neutrons. What is the atomic number of this
Zinaida [17]

Answer:

Atomic number of this  isotope = 77

Explanation:

Given that,

Mass number = 193

No of neutrons = 116

We need to find the atomic no of this isotope.

We know that,

Atomic mass = No of protons + No. of neutrons

Also, atomic no = no of protons

So,

Atomic mass = atomic no + No. of neutrons

⇒ Atomic no = Atomic mass - no of neutrons

Atomic no = 193 - 116

Atomic no = 77

Hence, 77 is the atomic no of the isotope.

6 0
3 years ago
Need help, please help
expeople1 [14]

Answer:

D

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • *WILL GIVE BRAINLIEST IF SOMEONE ANSWERS THIS CORRECTLY ASAP!!!!*
    7·1 answer
  • Mass is the ________(1)________, where as depth is the ________(2)________
    8·1 answer
  • Nickel has chemical symbol Ni and the atomic 28. How many protons,neutrons,and electronic would be found in an atom of nickel-78
    5·2 answers
  • Microwave ovens work by irradiating food with microwaves, which are absorbed by the water molecules in the food and converted to
    13·1 answer
  • Assume that the potential energy of the products in a chemical reaction is 60 kilojoules. this reaction would be exothermic if t
    5·1 answer
  • What is the theoretical yield of ammonia that can be obtained from the reaction of 10.0 g of H2 and excess N2?
    6·1 answer
  • . ¿Qué cantidad de HNO3 concentrado y de solvente se utilizará en la preparación de 500 mLal 5% (v/v)?
    13·1 answer
  • Send help thank u asap
    9·2 answers
  • Earthquakes are common at ocean-continent convergence zones but not ocean-ocean convergence zones. TRUE FALSE Check it​
    5·1 answer
  • how many equivalent resonance structures can you draw for sulfate where the formal charges a minimized (like in the previous que
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!