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
harina [27]
3 years ago
13

Which is an element? ... air ...carbon dioxide ...hydrogen ...water Description

Chemistry
2 answers:
d1i1m1o1n [39]3 years ago
7 0
The answer is Hydrogen.

Hydrogen can be found in the periodic table. There other choices are not element but compounds, which is a molecule made of more than ONE element.

Air is a mixture of gas molecules
Carbon dioxide is CO2
Water is H2O

So as you can see, they se al made of different elements
Natalka [10]3 years ago
5 0
All Elements are obtained in the periodic table & water is Not an element it is a compound.
You might be interested in
Why does the total volume of water and alcohol decrease when the liquids were mixed together?
WARRIOR [948]

Answer: I think the alcohol molecules slip between the water molecules and take up that space, so you have less that you started with.

Explanation:

6 0
3 years ago
Read 2 more answers
What geopolitical process returns carbon to the atmosphere in the from of carbon dioxide
musickatia [10]

Answer:

Explanation:

Recall that plants use water, atmospheric carbon dioxide, and energy from the sun to build their organic framework through photosynthesis. Therefore, plants draw down atmospheric carbon dioxide as part of their life habit. When plants die, the organic matter is oxidized and carbon dioxide is returned to the atmosphere.

3 0
3 years ago
What does the word distal mean?
erica [24]

There are two meanings to the word "Distal"

   Anatomy

  1.    situated away from the center of the body or from the point of attachment.

 

      Geology

    2.   relating to or denoting the outer part of an area affected by geological activity.

       

5 0
3 years ago
what object experiences a frequency equal to its natural frequency _______ is said to have occurred. 1. resonance 2. frequency 3
Talja [164]
Amplitude is the awnser glad I could help you
8 0
3 years ago
What kind of thermochemical equation is represented below?
ryzh [129]
The  kind  of  thermochemical  equation  represented  below 

that  is
CaO(s)  + H2O (l)  =  Ca(OH)2 (s)  +65.2  kj

is exothermic  (  answer  B)
  This  is  because  its  heat  energy  has  a  +  sign  meaning  that  heat  is  released  by  the  reaction  above.
6 0
4 years ago
Other questions:
  • Explain how the following changes would affect the rate of the reaction of 2-bromo-3-methylbutane with methanol: Part A The alky
    7·1 answer
  • A solution has a [H+] = 0.00025. What is the pH of this solution?
    12·1 answer
  • Question: A boy swimming in a lake smacks the surface of the water with his hand, creating sound waves that travel through the w
    15·1 answer
  • Silver sulfate dissolves in water according to the reaction: Ag2SO4(s) ∆ 2 Ag+(aq) + SO42-(aq) Kc = 1.1 * 10-5 at 298 K A 1.5-L
    12·1 answer
  • What is nitrogen's melting point?
    15·1 answer
  • It is a large body of air that has the same properties as the Earth's surface over which it develops.what is it?
    15·1 answer
  • How many molecules are present in 78.9 g of silver nitrate (AGNO3)?
    6·1 answer
  • A student is participating in the school science fair. She wants to investigate household cleaners.
    7·2 answers
  • The chemical equation, Cr + Fe(NO3)2 → Fe + Cr(NO3)3, is an example of which type of reaction?
    13·1 answer
  • 7. Explain how excitatory and inhibitory actions of neurotransmitters are different.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!