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
MAXImum [283]
3 years ago
10

What elements make up water?

Chemistry
2 answers:
Brut [27]3 years ago
8 0

Answer:

1 oxygen and 2 hydrogen

Sveta_85 [38]3 years ago
5 0
Water molecules are made of hydrogen atoms and one oxygen atom.

Hope this helped!
You might be interested in
How does the density of a gas affect the speed of sound
ZanzabumX [31]

Increased density decreases the speed of sound in a medium. While increased density can mean increased rigidity, or stiffness, it is not always the case. Greater density can be due to each molecule or atom having more momentum, and being slower to respond to the vibration of its neighbor.

4 0
3 years ago
What is altered by a catalyst?
JulsSmile [24]

Answer:Effect of Catalysts on the Activation Energy. Catalysts provide a new reaction pathway in which a lower Activation energy is offered. A catalyst increases the rate of a reaction by lowering the activation energy so that more reactant molecules collide with enough energy to surmount the smaller energy barrier.

Explanation:

Your answer is in this

7 0
3 years ago
Read 2 more answers
Read the sentence.
ExtremeBDS [4]

Answer:

The correct answer is "reveal the structures".

Explanation:

The predicate is the part of the prayer that tells us what the subject is doing. In this prayer "The Fossils" is the subject, so we must seek the action that develops from the subject. That action is that the fossils "reveal the structures". In this way, we can find the simple predicate of this sentence.

Have a nice day!

3 0
3 years ago
Place the following transitions of the hydrogen atom in order from longest to shortest wavelength of the photon emitted. Rank fr
gizmo_the_mogwai [7]

Answer:

7 to 4     (higher  \lambda)

5 to 3

3 to 2

4 to 2   (lower  \lambda)

Explanation:

We can use the Rydberg formula which relates the wavelength of the photon emissions to the principle quantum numbers involved in the transition:

\frac{1}{\lambda}=R((\frac{1}{n_1^2})-(\frac{1}{n_2^2}))

with n_1 final n, and n_2 initial n

evaluating for each transition:

7 to 4 \frac{1}{\lambda} = R((\frac{1}{4^2})-(\frac{1}{7^2}))= R(1/16-1/49)=R(0.042)

5 to 3 \frac{1}{\lambda}= R(1/9-1/25)=R(0.071)

4 to 2 \frac{1}{\lambda}= R(1/4-1/16)=R(0.1875)

3 to 2 \frac{1}{\lambda}= R(1/4-1/9)=R(0.139)

Note that the above formula is written for \frac{1}{\lambda}, so lower \frac{1}{\lambda} value obtained involves higher \lambda.

So we should order from lower to higher \frac{1}{\lambda}

7 to 4     (higher  \lambda)

5 to 3

3 to 2

4 to 2   (lower  \lambda)

Note: Take into account that longer wavelength involves lower energy (E=\frac{hc}{\lambda}).

3 0
3 years ago
Which words describe an air mass likely to be over the northern parts of the Pacific Ocean? wet and cold, warm and dry, cold and
liubo4ka [24]

Over the northern parts of the Pacific Ocean, the Maritime Polar air mass exists. This means that the air mass likely to be over the northern parts of the Pacific Ocean would be wet and cold.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Draw a structure for the product of nucleophilic substitution obtained on solvolysis of tert−butyl bromide in methanol, and arra
    11·2 answers
  • How is condensation explained by the Kinetic Molecular Theory? Cooling reduces particle motion, resulting in coalescence by attr
    11·2 answers
  • How many more valence electrons does oxygen need to have a full outer valence shell?
    12·1 answer
  • The solubility product of PbI2 is 7.9x10^-9. What is the molar solubility of PbI2 in distilled water?
    5·1 answer
  • Nitric acid can be produced by the reaction of gaseous nitrogen dioxide with water. 3 no2(g) + h2o(ℓ) −→ 2 hno3(ℓ) + no(g) if 85
    6·1 answer
  • Do viruses have locomotion
    5·2 answers
  • A mass spectrometer has determined the mass and abundances of all isotopes of an unknown element. The first isotope has a mass o
    5·1 answer
  • Which of the following correctly describes what happens to the kinetic energy of water when it changes from steam to a liquid? T
    11·1 answer
  • Hello! I need a bit of help and Im kinda in a bit of a hurry so please help! Thank you :D
    15·2 answers
  • In nature, one common strategy to make thermodynamically unfavorable reactions proceed is to couple them chemically to reactions
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!