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
Aleks04 [339]
3 years ago
8

How many elements are in oxygen

Chemistry
2 answers:
Zolol [24]3 years ago
7 0

Answer:

Oxygen is made up of one element but it contains two atoms

Explanation:

kogti [31]3 years ago
5 0

Answer:

1

Explanation:

Oxygen is a pure substance therefore it is only made up of one kind of atom

You might be interested in
Using the brønsted theory, classify the compounds as either an acid or a base
Natali5045456 [20]

Answer:

all the below are ACIDS

Explanation:

1.HCOO- Formate

  HCOO- is a conjugate base.

2.HNO3- Nitric Acid

  Acid

3.CH3COOCH3: Methyl acetate

   Acid

4. HCOOH: Formic Acid

   Acid

Hope  it helps..pls mark as brainliest!

8 0
3 years ago
HELP ASAP PLEASE!!!! 15 PTS!!
Bond [772]
ADD THEM all, and then divide by four. Thats what I would do! 
5 0
3 years ago
Read 2 more answers
Describe three different scenarios where a chemical process or reaction shows an increase in entropy.
Jet001 [13]
The request is characterized as knowing where things are and having the capacity to discover and utilize the things. 
In a compound procedure, there is more issue, more entropy when the particles 
1. warm up, increment in temperature. The atoms are more disorganized 
2. get stirred up and must be isolated with exertion. Bedlam. 
3. state changes, dissolves, vaporizes. The atoms are more turbulent 
4. respond to frame a pack of various particles. More disorder
4 0
3 years ago
An acetylide anion is more stable than either a vinylic or alkyl anion due to Group of answer choices the greater stability of a
sashaice [31]

Answer:

the stabilization of the negative charge in orbitals with higher s character

Explanation:

Acetylide anion is a carbon anion compound or popularly called carbanion. Now Acetylide anion is sp hybridized. However acetylide anion tends to be more acidic as we move from sp³ to sp, hence acidicity increases, which makes sp to have the highest acidity and become the most  stable.

So, we can conclude that the acetylide anion is more acidic due to the stabilization of the negative charge in orbitals with higher s character and  as the s character increases, acidic nature of acetylide anion also increases.

5 0
3 years ago
Classify each of the observed changes according to whether or not they are likely to represent evidence that a chemical reaction
Mama L [17]

Answer:

a solution color becoming less intense  due to dilution- is not an evidence of a chemical reaction

bubbles (gas formation) - evidence of a chemical reaction

explosion or fire - evidence of a chemical reaction

changes in color- evidence of a chemical reaction

precipitation- evidence of a chemical reaction

changes in temperature - evidence of a chemical reaction

a solid liquifying - is not an evidence of a chemical reaction

solution colors mixing - is not an evidence of a chemical reaction

Explanation:

A chemical change is not easily reversible and yields new substances. It is often accompanied by a loss or gain of heat.

In the answer section, i have shown some evidences that lead us to conclude that a chemical reaction has taken place. The occurrence of a chemical change often goes with the formation of new substances as earlier stated and any of these signs may accompany the process.

For instance, when a metal is dropped in dilute acid solution, bubble of hydrogen gas indicates that a chemical reaction has taken place.

8 0
3 years ago
Other questions:
  • Elements with the valence-shell electron configuration ns2np5
    5·1 answer
  • What is the name of the process in which the nucleus of an atom of one element is changed into the nucleus of an atom of a diffe
    11·1 answer
  • What doe the elements in these groups have in common? a)alkali metals b) halogens c) noble gases
    8·1 answer
  • Calculate the pressure in atmospheres of 0.5 mol of Helium ( He) at 20°C & occupying 2.50 L.
    11·1 answer
  • A 3.88 mol sample of gas has a temperature of 28°C and a pressure of 885 torr. What is its volume?
    13·2 answers
  • Im really tired and csant think plz help
    12·1 answer
  • Write the electronic configuration of calcium and potassium.​
    5·2 answers
  • Question 6: Energy Use (8 points)
    6·1 answer
  • Using proper units is important when recording data. In this lab, you determined three properties of the objects: mass,
    8·2 answers
  • Gasoline has a density of 0.749 g/mL . There are 454 grams in a pound and 3.7854 L in a gallon. How many Pounds does 19.2 gallon
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!