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
Annette [7]
3 years ago
9

5. Which of the following methods should be used to determine whether a

Chemistry
1 answer:
Marina CMI [18]3 years ago
6 0

Answer:

Physical separation

Explanation:

  • Titration is a process in which we use a titrant, a solution of known concentration, and adding it to our analyte, a solution of unknown concentration. Using an indicator within the analyte solution lets us find the equivalence point, as indicator changes the color when all of the solute in the unknown solution reacted. We can then apply stoichiometry and find the molarity of the analyte. Hence, this is a process of determining molarity.
  • Combustion is a process in which we burn a substance in excess of oxygen, it produces new products.
  • Physical separation is a process to separate a mixture of several compounds into its individual components, usually based on different solubility, different boiling point or different density/polarity.
  • Chemical decomposition is a process in which we heat an insoluble substance to a high temperature and decompose it into separate new substances.
You might be interested in
a lab is performed to do the study of pH and heat on the function of the catalase enzyme found in carrot plants. what would be c
ad-work [718]
It would be the ph and heat
3 0
3 years ago
What do climatologist study about fossil seashells in rock sediments to learn about climate
ludmilkaskok [199]

Answer:

What information can climatologists learn from fossils? Fossils of plants and animals can show adaptations that organisms had for a particular type of climate that existed millions of years ago. Climatologists look at many pieces of evidence to study climate change. These pieces of evidence can support each other.

Explanation:

,.,

5 0
2 years ago
Read 2 more answers
A gas cylinder initially contains 463 L of gas at a pressure of 159 atm. If the final volume of gas is 817 L, what is the final
Agata [3.3K]

Answer:

The final pressure is 90.1 atm.

Explanation:

Assuming constant temperature, we can solve this problem by using <em>Boyle's Law</em>, which states:

  • P₁V₁=P₂V₂

Where in this case:

  • P₁ = 159 atm
  • V₁ = 463 L
  • P₂ = ?
  • V₂ = 817 L

We <u>input the given data</u>:

  • 159 atm * 463 L = P₂ * 817 L

And <u>solve for P₂</u>:

  • P₂ = 90.1 atm

The final pressure is 90.1 atm.

6 0
2 years ago
Which pair of elements are the most similar? A. Ca and F B. Na and Cl C. Ne and Ar D. K and Ca
Vinil7 [7]

Answer:

c

Explanation:

8 0
2 years ago
calculate the number of coulombs of positive charge in 250cm 3 of (neutral) water. (hint: a hydrogen atom contains one proton; a
Sidana [21]

Number of coulombs of positive charge in 250cm^3 water is 1.3×10^7 C

The volume of 250 cm^3 corresponds to a mass of 250 g since the density of water is 1.0 g/cm^3

This mass corresponds to 250/18 = 14 moles since the molar mass of water is 18. There are ten proton (each with charge q = +e) in each molecule of H_{2}O So,

Q = 14NA  q =14(6.02×10^23)(10)(1.60×10^−19C) = 1.3×10^7 C.

Mass is the quantity of matter in a physical body. It is also a measure of the body's inertia, the resistance to acceleration when a net force is applied. An object's mass also determines the strength of its gravitational attraction to other bodies.

Learn more about mass here:

brainly.com/question/17067547

#SPJ4

​

3 0
1 year ago
Other questions:
  • Is tantalum radioactive?
    14·1 answer
  • M&amp;M balance equations
    13·1 answer
  • Phosphorus pentafluoride, PF5, acts as a __________ during the formation of the anion PF−6. Select the correct answer below: A.
    6·1 answer
  • Please hurry Which of the following statements is true?
    14·1 answer
  • 13 moles of water to molecules
    10·1 answer
  • Van dar waals are the dominant molecular force in the sodium chloride. ​
    11·1 answer
  • E is solution of HCI of unk concentration f contain 4.8g of NaOH in 25cm point of salution​
    12·1 answer
  • If your sweat glands suddenly got clogged or blocked, what function of the Integumentary system might not work anymore?
    14·1 answer
  • Compared to rodents, rabbits have an extra pair of incisors and other skeletal structures that are different. They also have som
    8·1 answer
  • If a 500 ml sample of water contains 2.6 x 10-6 g of iron, what is the concentration of iron in ppb?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!