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zhuklara [117]
3 years ago
13

Which of the following involves only a physical change *

Chemistry
2 answers:
notsponge [240]3 years ago
8 0

Answer:

A.

Explanation:

All the rest is Chemical Change

Anika [276]3 years ago
7 0

Answer:

A

Explanation:

Ur welcome hope it helps :)

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The symbol for hydronium ion concentration is
Likurg_2 [28]
<span>The symbol for hydronium ion concentration is H+. </span><span>There are quite a few relationships between [H+] and [OH−] ions. And because there is a large range of number between 10 to 10</span><span>-15</span><span> M, the pH is used. pH = -log[H+] and pOH = -log[OH−]. In aqueous solutions, </span><span>[H+ ][OH- ] = 10-14. From here we can derive the values of each concentration.</span>
3 0
3 years ago
So its not A so its B C or D plz help
Rainbow [258]

Answer:

the answer is B

hope this helped!

3 0
3 years ago
Match each term with its definition.
padilas [110]

Answer:

The position of an equilibrium always shifts in such a direction as to relieve a stress applied to the system -Le Chåtelier's principle

A molecule that donates a proton when it encounters a proton acceptor.- Bronsted-Lowry acid

Occurs when a reaction involving an acid and its conjugate base is combined with a second reaction involving a base and its conjugate acid.- Neutralization

It ionizes completely when dissolved in water.- Strong acid

The shift in the position of equilibrium caused by the addition of a participating ion.- Common ion effect

It only partially ionizes when dissolved in water.- Weak electrolyte

It is capable of acting as either an acid or a base depending upon the solute- Amphoteric solvent

The act of self-ionization of a solvent to produce both a conjugate acid and a conjugate base.- Auto-protolysis

A chemical species that bears both positive and negative charges.- Zwitterion

Explanation:

In the answer box we have various chemical terminologies and their definitions. In answering the question, you must carefully read through each definition, then check what option best matches that definition from the options provided.

Each definition applies only to one terminology as you can see in the answer above.

4 0
3 years ago
The structure of a water molecule (H20) can be written as H-O-H, with each dash representing a chemical bond.
svet-max [94.6K]

Answer:

oxygen shows 2 bonds with hydrogen

8 0
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why is the term "ionic" used when describing compounds formed from a metal element and a nonmetal element?
nordsb [41]
Ionic compounds form when metals transfer valence electrons to nonmetals. Ionic compounds exist as crystals rather than molecules.
8 0
3 years ago
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