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
Nataly_w [17]
2 years ago
6

How many atoms are in TWO water (H20) molecules?

Chemistry
2 answers:
Kobotan [32]2 years ago
7 0

4 hydrogen atoms and 2 oxygen atoms

if you want to make 2 water molecules, you will need 4 hydrogen atoms and 2 oxygen atoms

WINSTONCH [101]2 years ago
6 0

Answer:

6

Explanation:

There are two atoms of hydrogen and one atom of oxygen in each water molecule, making the formula H 2 O.  So in two there would be 4 hydrogen and 2 oxygen

You might be interested in
When 0.5141 g of biphenyl (C12H10) undergoes combustion in a bomb calorimeter, the temperature rises from 25.823 °C to 29.419 °C
natka813 [3]

Answer:

\Delta_{r}U of the reaction is -6313 kJ/mol

\Delta_{r}H of the reaction is -6312 kJ/mol

Explanation:

Temperature\,\,change= \Delta U = 29.419-25.823 =3.506^{o}C

q_{cal}= C \times \Delta T

=5.861 \times 3.596 = 21.076\,kJ

q_{rxn}= -q_{cal}= -21.076\,kJ

\Delta_{r}U= -21.076 \times \frac{154}{0.5141}= -6313\, kJ/mol

Therefore, \Delta_{r}U of the reaction is -6313 kJ/mol.

The chemical reaction in bomb calorimeter  is as follows.

C_{12}H_{10}(s)+\frac{27}{2}O_{2}(g)\rightarrow 12CO_{2}(g)+5H_{2}O(g)

Number\,of\,moles\Delta n=(12+5)-\frac{27}{2}=3.5

\Delta_{r}H=\Delta E+ \Delta n. RT

=-6313+3.5\times 8.314\times 10^{-3} \times 3.596=-6312\,kJ/mol

Therefore, \Delta_{r}H of the reaction is -6312 kJ/mol.

3 0
3 years ago
NO2+H4➡2 H2O+N What are the elements
Firdavs [7]
They are nitrogen, oxygen, hydrogen
6 0
3 years ago
Read 2 more answers
What element has the smallest atomic radius
Mariulka [41]
Helium has the smallest atomic radius® Α⇒Ω
4 0
3 years ago
Which of the following symbols represents a chlorine ion with a stable arrangement of eight valence electrons?
frozen [14]

A stable arrangement of eight valence electrons : ³⁵Cl⁻¹

<h3>Further explanation</h3>

Chlorine is a halogen gas, located in group 17, p block

Chlorine has an atomic number of 17 and an atomic mass of 35

Electron configuration: [Ne] 3s²3p⁵

If we look at the electron configuration, then Cl will bind 1 more electron so that the configuration is stable like Argon (atomic number 18)

So by binding this one electron, chlorine forms negative ions (anions)

³⁵Cl⁻¹

B. Cl⁻² binds 2 electrons, exceeding the octet rule

C. Cl⁺¹, releases 1 electron, remains unstable

D. Cl, the neutral form of Cl, is still unstable with a 7-electron valence configuration

3 0
3 years ago
Select the ion.<br><br>1)Cu<br>2)PO4-3<br>3)SO2
Lilit [14]
I believe the answer is B. PO4-3
6 0
3 years ago
Read 2 more answers
Other questions:
  • SPACE SCIENCE If the Milky Way galaxy were a pizza, would the Earth be in the cheese or on the crust? Justify your answer.
    6·1 answer
  • Compare the wavelength and frequency of a radio wave to the wavelength and frequency of a gamma ray?
    9·1 answer
  • How many C atoms are there in 5.25 grams of a compound containing 92.26% C and 7.74% H?
    9·1 answer
  • What families do you have in your chart
    13·1 answer
  • Calculate the final temperature of 12.0 g of Argon (considered as an ideal gas) that is expanded reversibly and adiabatically fr
    12·1 answer
  • Why the ph of glycine increases when 0.1 M NaOH is added dropwise​
    6·1 answer
  • Which of the following can be represented by a single chemical symbol?
    11·1 answer
  • How many valence electrons do the elements in column 4 have? Are these elements very reactive?
    7·1 answer
  • How many moles of LiOH are needed to react completely with 25.5 g of CO2
    12·1 answer
  • Consider the following reversible reaction.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!