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GalinKa [24]
3 years ago
8

Which list of formulas represents compounds, only?

Chemistry
2 answers:
goldfiish [28.3K]3 years ago
8 0
A compound has to have at least two different elements in
(1) is the only list in which each of the three symbols representations show at least two different elements
Ann [662]3 years ago
3 0
The best formula that represents compounds only is <span>CO2, H2O, NH3.</span>
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Given that the boiling points of ethanol and diethyl ether are 78.1°C and 34.6°C, respectively, which should have the higher vap
anyanavicka [17]
Diethyl ether, since 20 is closer to 34.6 it should start boiling faster than the other which is no where near it
7 0
3 years ago
Read 2 more answers
Which element is correctly classified
saul85 [17]

Answer:

Air is a qualified element

4 0
3 years ago
Write a balanced equation for the oxidation-reduction reaction that occurs when hydrogen peroxide reacts with ferrous ion
Alex17521 [72]
H₂O₂ + 2FeSO₄ + H₂SO₄ → Fe₂(SO₄)₃ + 2H₂O

H₂O₂ + 2H⁺ + 2e⁻ → 2H₂O  k=1
Fe²⁺ → Fe³⁺ + e⁻                 k=2

H₂O₂ + 2H⁺ + 2Fe²⁺ → 2H₂O + 2Fe³⁺


7 0
3 years ago
What is formed when water chemically combines with carbon dioxide
solong [7]

When water chemically combines with carbon dioxide, a Carbonic acid is formed.

<u>Explanation</u>:

  • Carbon dioxide responds with water in a solution to form a weak acid, carbonic acid. Carbonic acid disassociates into hydrogen particles and bicarbonate particles. The hydrogen particles and water respond with the most basic minerals modifying the minerals.  
  • Carbon dioxide and the other atmospheric gases disintegrate in surface waters. Dissolved gases are in equilibrium with the gas in the atmosphere. Carbon dioxide responds with water in a solution to form the weak acid, carbonic acid. Carbonic acid disassociates into hydrogen particles and bicarbonate particles.  
  • The hydrogen particles and water respond with the most basic minerals altering the minerals. The results of enduring are prevalently clays and soluble particles, for example, calcium, iron, sodium, and potassium. Bicarbonate particles additionally remain in solution; a remnant of the carbonic acid that was utilized to weather the rocks.

5 0
3 years ago
Find the density of Liquid A: Liquid A: Mass-138g Volume – 100 mL.
nlexa [21]

Answer:

The answer is

<h2>1.38 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question

mass of liquid = 138 g

volume = 100 mL

The density of the liquid is

density =  \frac{138}{100}  = \frac{69}{5 0}

We have the final answer as

<h3>1.38 g/mL</h3>

Hope this helps you

7 0
3 years ago
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