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
velikii [3]
3 years ago
15

Numbers 15-21 HELP PLEASE!!

Chemistry
2 answers:
Bas_tet [7]3 years ago
5 0
Re upload the pic I can’t see it ://
bagirrra123 [75]3 years ago
4 0
I wish I could help you, but I cannot see your paper. Please re-upload so I can help you : )
You might be interested in
Strong acids are assumed 100% dissociated in water. True As a solution becomes more basic, the pOH of the solution increases. Fa
Kruka [31]

Answer:

Strong acids are assumed 100% dissociated in water- True

As a solution becomes more basic, the pOH of the solution increases- false

The conjugate base of a weak acid is a strong base- true

The Ka equilibrium constant always refers to the reaction of an acid with water to produce the conjugate base of the acid and the hydronium ion- True

As the Kb value for a base increases, base strength increases- true

The weaker the acid, the stronger the conjugate base- true

Explanation:

An acid is regarded as a strong acid if it attains 100% or complete dissociation in water.

The pOH decreases as a solution becomes more basic (as OH^- concentration increases).

Ka refers to the dissociation of an acid HA into H3O^+ and A^-.

The greater the base dissociation constant, the greater the base strength.

The weaker an acid is, the stronger , its conjugate base will be.

7 0
3 years ago
Do plasmids have an importance beyond the practice of genetic engineering?
kozerog [31]
Answer: Yes

Explanation: Plasmids offer a number of unique characteristics that make genetic engineering much more efficient. Plasmids are a type of non-chromosomal DNA. Integrating DNA into a bacterial or other chromosome is far more complex than simply putting DNA into a cell; plasmids make it easier to transport DNA into a cell by eliminating this step.

4 0
2 years ago
Why is the process of nuclear fusion important to life on Earth?
GrogVix [38]
Nearly all life on Earth gets its energy from the sun, and the sun gets its energy through the process of nuclear fusion, which is why these type of energy is important to life on Earth.
6 0
3 years ago
a student determined that 8.2 milligrams of oxygen is dissolved in a 1000 gram sample of water at 15 degrees Celsius and 1 atm w
melamori03 [73]

Answer: We do not know. We have not been given the solubility of oxygen in water at a given temperature nor have we been given the Henry's laws constant. We also do not know whether you mean 1 atmosphere of air, or 1 atmosphere of oxygen.

8 0
3 years ago
Which part of an atom has most of its mass? electrons neutrons nucleus protons NextReset
sergey [27]
C) Nucleus...... Hope it helps, Have a nice day :)
3 0
3 years ago
Other questions:
  • How many moles are in 2.0 grams of FeO
    14·2 answers
  • How many moles are in 175.9 grams of Pb3(PO4)2?
    10·1 answer
  • An atom with one valence electron combines with an atom with seven valence electrons.
    15·1 answer
  • HELP!!!!!!! BEST ANSWER WILL BE MARK AS BRAINLIEST!
    12·2 answers
  • When the owners of some wells in Pallerla started using high-powered motors to
    9·1 answer
  • Which observation illustrates the law of conservation of mass?
    12·1 answer
  • Suppose that 100 grams of water at 50.0°C is placed in contact with 200 grams of iron at 30.0°C. The final
    8·1 answer
  • What is the percent by mass of Ca in calcium chloride, CaCI2 (show your work)
    12·1 answer
  • Van der Waals forces hold molecules together by: A. moving electrons from one molecule to another. B. attracting a lone pair of
    10·1 answer
  • Atoms are bonded together due to the mixing of atomic orbitals to create mixed or hybrid orbitals. This is an example of a(n)?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!