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
user100 [1]
2 years ago
5

Which statement describe molecules?

Chemistry
2 answers:
antoniya [11.8K]2 years ago
6 0

Answer:

A group of atoms bonded together by different chemical reactions. It is the smallest fundamental unit of a chemical compound.

Explanation:

castortr0y [4]2 years ago
5 0

Answer:Molecules are made of 2 or more atoms, molecules range in size, and molecules are made of atoms of the same element or different elements

Explanation:

You might be interested in
The incomplete table below shows selected properties of compounds that have ionic, covalent, or metallic bonds.
pogonyaev

Answer:

is there an option for silver? if so, silver is the answer.

8 0
1 year ago
Water a combination of the elements hydrogen and oxygen, is an example of an
marin [14]

Answer:

Explanation:

Common Examples of the Law of Definite Proportions

Water, written as the chemical compound H20, is made up of atoms of hydrogen and oxygen. If one oxygen atom is combined with two hydrogen atoms, water is created.

3 0
2 years ago
SOMEONE, PLEASE HELP!!
scZoUnD [109]

Part 1:  

The process that arrow C signifies is the burning of fossil fuels in order to present carbon dioxide into the atmosphere. The mentioned procedure in the carbon cycle is comparatively new as humans were not able to generate huge concentrations of carbon dioxide by burning fossil fuels until the emergence of the Industrial revolution.  

Part 2:  

The phenomenon, which could discharge the compound into the air is the burning of fuels. It is an oxidation reaction in which the carbon present in the hydrocarbons in the fuel is oxidized to carbon dioxide by the presence of oxygen in the air. The carbon dioxide discharged into the atmosphere contributes to the greenhouse effect.  

Part 3:  

The elements, which produce it are conserved at the time of the carbon cycle by the Law of Conservation of Matter. According to this law, the matter is neither consumed nor produced, it only gets transformed. So, at the time of chemical procedures in the carbon cycle, the atoms of carbon are never destructed, however, they get rearrange and modify into distinct molecules. The mentioned cycle is essential for maintaining life on Earth.  

5 0
3 years ago
What is the equilibrium expression for the reaction below?
Mariana [72]

Answer:

A. K=\frac{[N_2O]^2}{[N_2]^2[O_2]}

Explanation:

Hello there!

In this case, for us to figure out the appropriate equilibrium expression, it will be firstly necessary for us to recall the law of conservation of mass which states that the equilibrium constant of an equilibrium chemical reaction is written by dividing the products and reactants and including the stoichiometric coefficients as exponents. In such a way, for the given reaction, we will have:

K=\frac{[N_2O]^2}{[N_2]^2[O_2]}

As N2O is the product whereas N2 and O2 are reactants; thus, the equilibrium expression will be A.

Regards!

6 0
2 years ago
The mass of a quantity of NiCl2
Gennadij [26K]
Not sure, is it <span>:
</span>B.
<span> 1.9 3 1027 NiCl2
formula units</span>
3 0
3 years ago
Read 2 more answers
Other questions:
  • How many σ and π bonds are present in a molecule of cumulene?
    13·2 answers
  • a student has a sample of a mystery element and knows that it belongs to one of the region marked on the Periodic table shown be
    13·1 answer
  • What is the atomic number of xenon, the fifith element in group 18?
    11·1 answer
  • The pressure of nitrogen gast at 35°C is changed from 0.89 atm to 4.3 atm. What will be its final temperature in Kelvin?
    5·2 answers
  • Which of these is a chemical property of a substance?
    15·1 answer
  • A scientist plants two rows of corn for experimentation. She puts fertilizer on row 1 but does not put fertilizer on row 2. Both
    10·2 answers
  • Why does the moon appear to move across the sky
    6·1 answer
  • If a liquid dissolves in a gas, in what state will the solution be? Explain your answer.
    11·1 answer
  • Which shared derived characteristic do reptiles, marsupials, and dogs have?
    8·2 answers
  • Chemistry mixes 108 g of O2, with 232 L of C3Hg at STP. How many grams of H2O will be produced? The balanced equation for this r
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!