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
aleksandr82 [10.1K]
3 years ago
15

Why is the Earth's hydrosphere (oceans) made up of mostly hydrogen and oxygen? *

Chemistry
1 answer:
Umnica [9.8K]3 years ago
4 0

Answer:

Because ocean water contains salt, there is also sodium and chlorine in the oceans.

Explanation:

You might be interested in
What is a siesmograph
erastova [34]

Answer:

measures earth or ground movement such as earthquake

4 0
3 years ago
In the equation CH4 + 2O2 --> 2H2O + CO2 What is the mass of CO2 produced when 35g of O2 reacts?
Anestetic [448]

Answer:

24.06 g of CO₂

Explanation:

The balanced equation for the reaction is given below:

CH₄ + 2O₂ —> 2H₂O + CO₂

Next, we shall determine the mass of O₂ that reacted and the mass of CO₂ produced from the balanced equation. This can be obtained as follow:

Molar mass of O₂ = 2 × 16 = 32 g/mol

Mass of O₂ from the balanced equation = 2 × 32 = 64 g

Molar mass of CO₂ = 12 + (2×16)

= 12 + 32

= 44 g/mol

Mass of CO₂ from the balanced equation = 1 × 44 = 44 g

SUMMARY:

From the balanced equation above,

64 g of O₂ reacted to produce 44 g of CO₂.

Finally, we shall determine the mass of CO₂ produced by the reaction of 35 g of O₂. This can be obtained as follow:

From the balanced equation above,

64 g of O₂ reacted to produce 44 g of CO₂.

Therefore, 35 g of O₂ will react to produce = (35 × 44)/64 = 24.06 g of CO₂.

Thus, 24.06 g of CO₂ were produced from the reaction.

8 0
2 years ago
The lithosphere, hydrosphere, and ______________ are the abiotic parts of the planet.
VladimirAG [237]
The lithosphere, hydrosphere, and atmosphere are the abiotic parts of the planet.
8 0
3 years ago
30 POINTS!!! Please Help With this!!!!
Goshia [24]
X is dependent Y is independent.... number of students is Y flavor is X
6 0
3 years ago
Consider the following reaction: 2{\rm{ N}}_2 {\rm{O(}}g)\; \rightarrow \;2{\rm{ N}}_2 (g)\; + \;{\rm{O}}_2 (g)
fredd [130]

Answer:

a. 5.9 × 10⁻³ M/s

b. 0.012 M/s

Explanation:

Let's consider the following reaction.

2 N₂O(g) → 2 N₂(g) + O₂(g)

a.

Time (t): 12.0 s

Δn(O₂): 1.7 × 10⁻² mol

Volume (V): 0.240 L

We can find the average rate of the reaction over this time interval using the following expression.

r = Δn(O₂) / V × t

r = 1.7 × 10⁻² mol / 0.240 L × 12.0 s

r = 5.9 × 10⁻³ M/s

b. The molar ratio of N₂O to O₂ is 2:1. The rate of change of N₂O is:

5.9 × 10⁻³ mol O₂/L.s × (2 mol N₂O/1 mol O₂) = 0.012 M/s

4 0
3 years ago
Other questions:
  • When a solid mixture of mgco3 and caco3 is heated strongly, carbon dioxide gas is given off and a solid mixture of mgo and cao i
    6·1 answer
  • The total number of valence electrons in a molecule of sof2 is ________.
    15·1 answer
  • When a clean iron nail is placed in an aqueous solution of copper(ii) sulfate, the nail becomes coated with a brownish black mat
    5·1 answer
  • What's the name of the process that occurs as the dry ice undergoes a phase change in the flask
    8·1 answer
  • 15. A food sample contains 25 g carbohydrate, 8 g fat and 5 g protein. The energy content is:
    8·1 answer
  • 3 factors which not affect the rate of ratioactive decay
    7·1 answer
  • Draw the best lewis structure for the free radical, no2. what is the formal charge on the n?
    8·2 answers
  • READING CHECK
    9·1 answer
  • Are all elements created equal? Provide evidence for why or why not.​
    8·1 answer
  • Which is a characteristic of nuclear fission?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!