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
notsponge [240]
3 years ago
6

Which is the best pure substance gold or air?

Chemistry
2 answers:
Elena L [17]3 years ago
7 0
Gold is the best pure substance. The answer is gold
ehidna [41]3 years ago
7 0
It is gold!!!!!!!!!!!!!!!!!!
You might be interested in
Write the net ionic reaction for the following double replacement reaction:
Schach [20]

Net ionic equation

Cu²⁺(aq)+S²⁻(aq)⇒CuS(s)

<h3>Further explanation</h3>

Double-Replacement reactions. Happens if there is an ion exchange between two ion compounds in the reactant to form two new ion compounds in the product

In the ion equation, there is a spectator ion that is the ion which does not react because it is present before and after the reaction  

When these ions are removed, the ionic equation is called the net ionic equation  

For gases and solids including water (H₂O) can be written as an ionized molecule  

Reaction

CuSO₄(aq)+Na₂S(aq)⇒CuS(s)+Na₂SO₄

ionic equation

Cu²⁺(aq)+SO₄²⁻(aq)+2Na⁺(aq)+S²⁻(aq)⇒CuS(s)+2Na⁺(aq+SO₄²⁻(aq)

spectator ions : 2Na⁺ and SO₄²⁻

Net ionic equation

Cu²⁺(aq)+S²⁻(aq)⇒CuS(s)

6 0
3 years ago
A ________ is an electric circuit that produces a magnetic field
aksik [14]
I believe it would be D. Electromagnet. It's been a while since I've done this stuff, tho. Hope this helps!!!! :)
5 0
3 years ago
Watch the following videos on molecule mixing encapsulators:
qwelly [4]

Answer:

here you go

Explanation:

                                                                     

6 0
2 years ago
An automobile is driving uphill. Which form of energy is not involved in this process?
Lapatulllka [165]
The answer is D) Electromagnetic energy. This is not a type of energy that occurs when a vehicle is moving.
7 0
3 years ago
Can someone please help me on #2
Colt1911 [192]
To much letters and numbers
8 0
2 years ago
Other questions:
  • Round the following numbers to 3 significant figures.
    10·1 answer
  • How to find valence electrons?
    9·2 answers
  • Suppose you have an atom composed of 19 protons, 20 neutrons and 19 electrons. what is the mass of this atom?
    13·1 answer
  • Name the following ionic compound KBr
    6·1 answer
  • How is the sun the major source of energy in the water cycle?
    10·1 answer
  • Is the final answer oxidation or reduction?
    14·1 answer
  • I'm sad to announce that this will most likely be my last day on brainly until next year, and to all the friends I've made on he
    9·1 answer
  • Please show proof for brainliest, i will rate you 5 stars if your answer is great!
    7·1 answer
  • Order these by size/complexity in descending order. (largest/most complex on top) Reorder answers
    12·1 answer
  • Consider the following reaction: Solid zinc was added to 1.0 M HC1.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!