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
Delvig [45]
3 years ago
9

What is a base?

Chemistry
2 answers:
Ipatiy [6.2K]3 years ago
7 0

Answer:   A. a substance that is alkaline

Explanation: Base is defined as the substance which is alkaline in nature.

It is the species which can accept a proton because of the lone pair of electrons or vacant orbitals present on them.

It is that species which donates its OH- ions to the solution (Arrhenius Base)

It is a substance which has a high pH value as low pH values belongs the the acidic species.

A species which can donate its H+ ion is known as Acidic species.

aliya0001 [1]3 years ago
5 0
The correct answer is A
its not D because a low pH is a acid
its not C because a base releases OH- ions
its not B because it donates and releases OH- ions

hope this helps
You might be interested in
What is the answer of number 3
Butoxors [25]

Answer:

TRUE!!!

Explanation:

The transfer of thermal energy is called heat. Therefore, a heating system is a system for the transfer of thermal energy. Regardless of the type of heating system in a home, the basic function is the same: to produce thermal energy and transfer it to air throughout the house.

5 0
2 years ago
Read 2 more answers
9. Write a balanced nuclear equation for the following: The isotope Strontium-90 decays by Q-
Sergio039 [100]

Answer: _{38}^{90}\textrm{Sr}\rightarrow _{36}^{86}\textrm{Kr}+_2^4\textrm{He}

Explanation:

Alpha Decay: In this process, a heavier nuclei decays into lighter nuclei by releasing alpha particle. The mass number is reduced by 4 units and atomic number is reduced by 2 units.

General representation of an element is given as:   _Z^A\textrm{X}

where,

Z represents Atomic number

A represents Mass number

X represents the symbol of an element

General representation of alpha decay :

_Z^A\textrm{Sr}\rightarrow _{Z-2}^{A-4}Y+_2^4\alpha

The  balanced nuclear equation when the isotope Strontium-90 decays by Q-  decay is :

_{38}^{90}\textrm{Sr}\rightarrow _{36}^{86}\textrm{Kr}+_2^4\textrm{He}

4 0
3 years ago
Will mark Brainly us if you help me
ohaa [14]

Answer: ok, its C

Explanation: I used D=26.4* 3 to calculat it

5 0
3 years ago
Determine the [h3o+] of a 0.210 m solution of formic acid.
Nataly [62]
When the Pka for formic acid = 3.77
and Pka = -㏒ Ka 
   3.77 = -㏒ Ka
∴Ka = 1.7x10^-4 

when Ka = [H+][HCOO-}/[HCOOH]

when we have Ka = 1.7x10^-4 &[HCOOH] = 0.21 m
so by substitution: by using ICE table value
1.7x10^-4 = X*X / (0.21-X)
(1.7x10^-4)*(0.21-X) = X^2      by solving this equation for X

∴X = 0.0059
∴[H+] = 0.0059
∴PH= -㏒ [H+]
       = -㏒ 0.0059
       = 2.23 

3 0
3 years ago
Can you identify a chemical only by knowing its physical properties?
amid [387]

Answer:

Any characteristic that can be determined without changing the substance's chemical identity. chemical property: Any characteristic that can be determined only by changing a substance's molecular structure

Explanation:

4 0
2 years ago
Other questions:
  • During a solar flare, it is most likely that
    12·2 answers
  • A sample of oxygen gas was collected via water displacement. since the oxygen was collected via water displacement, the sample i
    7·1 answer
  • A mineral must be_______ rather than organic. Organic materials are formed from_______ things. Minerals must be made from materi
    9·1 answer
  • The second step to the scientific method is to state the "problem", the scientific question to be solved. What is one requiremen
    10·2 answers
  • The rate at which a reaction is proceeding at a specific point in time is called the:______
    12·2 answers
  • What is the mass of 5 moles of Nitrogen gas
    6·1 answer
  • How does adding a lone pair affect the position of existing atoms and lone pairs
    9·2 answers
  • PLEASE HELP WORTH 100 POINTS !!!!!
    14·2 answers
  • 5. Write the two resonance hybrids for the carbocation that would be formed by protonation at C-1 of 2-methyl-1,3-pentadiene. Wi
    13·1 answer
  • Halppp can anyone come up with a slogan for anti smoking
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!