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
arlik [135]
3 years ago
13

Could someone help with this? Much appreciated!

Chemistry
1 answer:
alekssr [168]3 years ago
6 0

Answer:

The 3rd answer down.

Na²O (sodium oxide) will be a base when exposed to water H²O

Explanation:

Sodium Oxide Na²O, will become Sodium Hydroxide after being exposed to water (at 80% I believe).

The oxygen ion in Na²O has 2 extra electrons which makes it highly charged and very attractive to hydrogen ions. The attraction is so strong that when Na²O comes in contact with H²O, the O(-2) strips off a hydrogen from water, forming 2 x OH ions which of course are still strongly basic.

You might be interested in
How many neutrons are in calcium nitride
xxTIMURxx [149]

Answer:

20

Explanation:

8 0
3 years ago
why do you think that sodium chloride has to be heated to 800c before melting, but candle wax will start to melt at 50c?
RideAnS [48]

Answer:

Sodium chloride is an ionic compound which makes it stronger and have a higher melting and boiling point. Candle wax is a covalent compound so it has a low melting point.

Explanation:

<h2><u><em>PLEASE MARK AS BRAINLIEST!!!!!</em></u></h2>
5 0
2 years ago
How many elements are found in the following chemical equation? K + Cl → KCl
KengaRu [80]
There are 2 elements in the equation that form a product
8 0
3 years ago
Read 2 more answers
Cobalt III hydroxide and nitric acid react according to the following balanced equation:
kati45 [8]
The mass of cobalt (III) needed is
m = 5.2 L (0.42 mol/L) ( 93 g/mol)
m = 97.65 g

The volume of nitric acid needed is
V = 5.2 L (0.42 mol/L) (3 mol / 1 mol) (1000 mL/1.6 mol)
V = 1968.75 mL

The moles of water produced is
n = 5.2 L (0.42 mol/L) (3 mol / 1 mol)
n = 3.15 moles
6 0
3 years ago
Polonium crystallizes in a simple cubic unit cell with an edge length of 3.36 Å.
Diano4ka-milaya [45]

a. The unit cell is the smallest group of atom which have overall symmetry of a crystal, and from which is the entire letters can be buled built up by repetition in 3 dimensions.

b. The volume(v) of the unit cell is equal to the cell edge length (a)cubed.

c. density of polonium is 9.32g/cm3.

8 0
2 years ago
Other questions:
  • Ide ores, such es ? ​
    9·1 answer
  • Which excerpt from "Bone Detective" best shows that Diane France is recognized as an expert in her line of work?
    14·2 answers
  • Your classmate Manuel missed class yesterday. To help him catch up, explain in at least one complete sentence the effect of free
    12·1 answer
  • Terry heats two different masses of substance A to different temperatures, and measures the amounts of both carbon dioxide and w
    7·2 answers
  • The main building block of a silicate mineral is _____.
    10·2 answers
  • How can you find the amount of valence electrons an atom of an element contains?
    5·1 answer
  • Calculate the Mass of 3 Gram atom of Nitrogen ​
    11·1 answer
  • What is consciousness? ...​
    7·2 answers
  • How much DNA can be extracted from an onion
    11·1 answer
  • A student delivered 17.06 mL (V1) of 7.16 % stock solution (M1) using a graduated pipette into a 50.00 mL (V2) volumetric flask.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!