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Tju [1.3M]
2 years ago
12

Which type of wave cannot move without a medium in which to travel?

Chemistry
1 answer:
Zanzabum2 years ago
5 0

sound wave cannot travel without a medium.

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Describe un modelo matemático para representar lo que sucede en cada una de las reacciones químicas  (incluye toda la simbología
GuDViN [60]

Responder:

2H2 + O2 → 2H2O

CaO + H2O → Ca (OH) 2

Fe + S → FeS

H2SO3 → SO2 + H2O

CaCO3 → CaO + CO2

Explicación:

2H2 + O2 → 2H2O

2 moléculas de hidrógeno gaseoso reaccionan con oxigente para producir 2 moléculas de agua

CaO + H2O → Ca (OH) 2

El óxido de calcio reacciona con el agua para producir hidróxido de calcio.

Fe + S → FeS

El hierro reacciona con el azufre para producir sulfuro de hierro.

H2SO3 → SO2 + H2O

Por descomposición, el ácido sulfuroso se descompone para producir dióxido de azufre y agua.

CaCO3 → CaO + CO2

El carbonato de calcio se descompone para producir óxido de calcio y dióxido de carbono.

8 0
2 years ago
What is 0.045 rounded to the nearest hundredth?
deff fn [24]
0.05 is the answer to your question
5 0
3 years ago
Read 2 more answers
Here is a multiple choice I need help on:
Ivenika [448]
I'm pretty sure it's B because carbon atoms are in all living organisms. They can also be bonded in different varations.
3 0
3 years ago
2 H2O2(aq) ----> 2 H2O(l) + O2(g) in the presence of I-(aq) is proposed to be: Step 1 (slow): H2O2 + I- -----> H2O + OI- S
andrezito [222]

Answer:

Molecularity of the rate determining step = 2

Explanation:

Step 1 (slow): H₂O₂ + I⁻ -----> H₂O + OI⁻

Step 2 (fast): H₂O₂ + OI⁻ -----> H₂O + O₂ + I⁻

The rate determining step in a reaction mechanism is also considered as slowest step.

Slowest step is also considered its highest activation energy in energy profile diagram.

In this case intermediate  (IO⁻) is formed.

Step 1 considered as a slowest step.

So,  Rate = K [H₂O₂][I⁻]

  Molecularity = 2

6 0
3 years ago
The primary role of the nervous system is to:
Scrat [10]
Gather and respond to information
3 0
2 years ago
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