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
zzz [600]
3 years ago
14

The element oxygen, represented by the symbol O, is classified as

Chemistry
2 answers:
nika2105 [10]3 years ago
7 0

Answer:

A.  

a pure substance.

Explanation:

Pure Substances are made of the same material throughout and have the same properties throughout. Pure substances cannot be separated into other substances. Some examples are carbon, iron, water, sugar, salt, nitrogen gas, and oxygen gas. Ur welcome.

Katarina [22]3 years ago
3 0
Oxygen<span> is a </span>chemical element<span> having a symbol </span>O<span> and having an </span>atomic number<span> 8.
Oxygen is a pure substance , and it is not a mixture or solution, Niether it is a compound ... Instead , it forms chemical compounds by reacting with other elements.
So , according to above explanation ,
A. A pure substance , is the correct answer.</span>
You might be interested in
GR 11 CHEM M3
galina1969 [7]

<em>A:  When burning Sulfur, Sulfur Dioxide is released. Having more Oxygen available provides more reactive potential for the burning Sulfur, making it burn much more fiercely. In water, the Sulfur Dioxide forms Sulfurous acid. Added: 12 years ago.</em>

<em />

<em>Explanation:</em>

<h3><em /></h3>
6 0
3 years ago
Please help me out i don’t get this. what is the answers to 1-4.
VLD [36.1K]

Answer:

1. A circuit is a path that electricity flows along. It starts at a power source, like a battery, and flows through a wire to a light bulb or other object and back to other side of the power source.

2. A series circuit is one that has more than one resistor, but only one path through which the electricity (electrons) flows. All the components in a series circuit are connected end-to-end. A resistor in a circuit is anything that uses some of the power from the cell.

3. A parallel circuit is a circuit in which the electric current passes through two or more branches or connected parts at the same time before it combines again. Compare.

4. BOTH - 1. lightbulb 2. battery 3. switch

   SERIES- 1. Ammeter 2. voltmeter

i'm not sure about the rest sorry :(

7 0
3 years ago
According to the rate law, how do concentrations affect rate?
IrinaK [193]
D, the rate increases as concentrations increase.

Typically, reaction rates decrease with time because reactant concentrations decrease as reactions are converted to products. Reaction rates generally increase when reactant concentrations are increased.
6 0
3 years ago
Read 2 more answers
As the [H+] in a solution decreases, what happens to the [OH–]? A. It increases and the pH increases. B. It increases and the pH
AleksAgata [21]
<h3><u>Answer;</u></h3>

D. It decreases and the pH increases.

<h3><u>Explanation;</u></h3>
  • pH is a measure of the hydorgen ion concentration of a solution. Solutions with a high concentration of hydrogen ions have a low pH and solutions with a low concentrations of H+ ions have a high pH.
  • <em><u>[H+] and [OH-] are inversely related. Therefore; As the concentration of H+ increases the pH decreases. Since the concentrations of H+ and OH- are inversely proportional, as one goes up, the other goes down. </u></em>
  • <em><u>Therefore, an increase in OH- concentration will correspond to an increase in pH and a decrease in the concentration of H+.</u></em>
5 0
3 years ago
Read 2 more answers
Based on the Lewis/electron dot representation
timama [110]

Answer:

B or C think so

4 0
2 years ago
Other questions:
  • 1. In any nuclear reaction, nuclei are transformed in some way.
    12·2 answers
  • what is the ratio of the rate of effusion of helium (atomic mass 4.00 amu) to that of oxygen gas (molecular mass 32.0 amu)?
    7·1 answer
  • PLEASE HELP!!! Summarize the steps needed to perform paper chromatography
    6·1 answer
  • Identify the arrows that show removal of thermal energy when matter changes state.
    5·1 answer
  • 7. Halfway through a cross country meet, a
    13·1 answer
  • What is DNA? What information does it carry? Where is DNA located?
    15·1 answer
  • The equilibrium constant for the reaction:
    9·1 answer
  • If 0.500 L of a 4.00-M solution of copper nitrate, Cu(NO3)2, is diluted to a volume of 1.50 L by the addition of water, what is
    11·1 answer
  • How many liters of 2.0 M HCl are required to exactly neutralize 1.5 L of 5.0 M NAOH?
    12·1 answer
  • Scientist classify orgasms into different groups based on what (science)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!