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
Anton [14]
3 years ago
12

Which of these processes occur when water changes to ice?

Chemistry
2 answers:
maxonik [38]3 years ago
6 0
A Physical reaction occurs as we freeze the water into ice, and physical changes are changes that can be undone.
kramer3 years ago
6 0
Waht are the options
You might be interested in
How are fossils formed
creativ13 [48]
I am sure the answer is D
7 0
3 years ago
What is the name of this compound?<br><br> C6H6-<br> C=O-<br> H
ipn [44]

Answer: Benzaldahyde

Explanation: the C₆H₅- represents the substituted benzene ring and the

CHO should represent the functional group of aldehyde

8 0
3 years ago
Read 2 more answers
Hurry!! Please
Vanyuwa [196]

c

Explanation:

pay attention in class next time bye hope it helps THE ANSWER IS C bye

7 0
2 years ago
When a aqueous solution of a certain acid is prepared, the acid is dissociated. Calculate the acid dissociation constant of the
stepan [7]
<h2>K_a = \dfrac{[H^{+}] [A^{-}]}{[HA]}</h2>

Explanation:

  • When an aqueous solution of a certain acid is prepared it is dissociated is as follows-

        {\displaystyle {\ce {HA  ⇄  {H^+}+{A^{-}}}  }}

Here HA is a protonic acid such as acetic acid, CH_3COOH

  • The double arrow signifies that it is an equilibrium process, which means the dissociation and recombination of the acid occur simultaneously.
  • The acid dissociation constant can be given by -

        K_a = \dfrac{[H^{+}] [A^{-}]}{[HA]}

  • The reaction is can also be represented by Bronsted and lowry -

         \\{\displaystyle {\ce {{HA}+ H_2O} ⇄  [H_3O^+] [A^-]

  • Then the dissociation constant will be

        K_a = \dfrac{[H_3O^{+}] [A^{-}]}{[HA]}

Here, K_a is the dissociation constant of an acid.

6 0
3 years ago
What things typically are counted in multiples or fractions of moles
ololo11 [35]

Answer:

Individually well, defined identical chemically units such as molecules, ions, atoms, or electrons

Explanation:

The mole is used as the unit of measurement for substance such as molecules, ions, atoms, or electrons. One mole of a substance is equivalent to 6.02×10²³ particles of the substance. The number, 6.02 × 10²³ is known as Avogadro's number.

The particles quantified as moles are individually well, defined identical chemically units such that the mole can be used to describe a part of a substance or the whole substance consisting of several moles of the substance combined.

7 0
3 years ago
Other questions:
  • Acid-Base Reactions Custom Learning Goal: To learn to classify acids and bases and to predict the products of neutralization rea
    10·1 answer
  • Many antacids contain solid calcium carbonate. Explain how antacids with calcium carbonate function.
    13·2 answers
  • Homeostasis subheading<br> The maintenance of stable internal conditions is called
    6·1 answer
  • What type of atoms will end up with a negative charge?
    6·2 answers
  • The hydrogen ion concentration of a vinegar solution is 0.00010 m. how is this concentration written in scientific notation?
    10·2 answers
  • 1. Coal gasification consists of the chemical transformation of solid coal into gas. The heating values of coal differ, but the
    9·1 answer
  • What is the concentration of lithium ions in 0.400 M Li₂HPO₄?
    7·1 answer
  • Organize the following list of atoms from lowest to highest Electronegativity:
    14·1 answer
  • What happens to a 8 L volume of gas as you love a pressure of 3 atm to 4 atm? Use the correct gas law to determine the new volum
    13·1 answer
  • Write the general electron configuration of a transition element(b) in Period 6.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!