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arsen [322]
3 years ago
7

What does wave velocity mean?

Chemistry
2 answers:
lidiya [134]3 years ago
5 0
Wave velocity refers to speed, but can also be speed and direction.
Trava [24]3 years ago
3 0
When a pulse travles though a medium

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Which is the correct net ionic equation for the reaction of aqueous ammonia with nitric acid? Which is the correct net ionic equ
rewona [7]

Answer:

The correct answer is

e. NH3(aq) + H+(aq) --> NH4+(aq)

Explanation:

To solve this, we write out the indidual ionization reation for aqueous ammonia and nitric acid thus

For aqueous ammonia we have

NH₃(aq) + H₂O(l) ↔ NH₄⁺(aq) + OH⁻(aq)

Aqueous ammonia is a weak base and therefore undergoes partial ionization hence the reversible reaction sign

As the level of ionization will not be more than 5% OH⁻ cannot represebt the weak base

For nitric acid we have

HNO₃(aq) → H⁺(aq) + NO₃⁻(aq)

a strong acid like nitric acid undergoes conplete ionization in the solution

The total equation is NH₃(aq) + HNO₃(aq) → NH₄NO₃(aq)

The sum of the ionic equation is

NH₃(aq) + H⁺(aq) + NO₃⁻(aq) → NH₄⁺(aq) + NO₃⁻(aq)

The ionic equation is

NH₃(aq) + H⁺(aq) →  NH₄⁺(aq)

5 0
4 years ago
Read 2 more answers
Elaborate on the role of activation energy in chemical reactions. A) Decreasing the activation energy leads to higher randomness
Zina [86]

<em>B</em><em> </em><em>i</em><em>s</em><em> </em><em>r</em><em>i</em><em>g</em><em>h</em><em>t</em><em> </em><em>a</em><em>n</em><em>s</em><em>w</em><em>e</em><em>r</em><em> </em><em>i</em><em>t</em><em>h</em><em>i</em><em>n</em><em>k</em><em> </em><em>b</em><em>r</em><em>o</em><em>/</em><em>s</em><em>i</em><em>s</em>

4 0
3 years ago
Read 2 more answers
Proteins are the basics of DNA. They are what make up who we are at the smallest levels. Different proteins have different jobs.
Marysya12 [62]

Answer:

Hemoglobin

Explanation:

Hemoglobin is a protein in your body, it carries oxygen to your body and transports carbon dioxide from your organs to your lungs. This is just what i know

5 0
2 years ago
Which of the following factors would reduce the yield of a reaction?
Olenka [21]

Answer:

B. The reactants form additional unexpected products.

Explanation:

7 0
3 years ago
Aluminum hydroxide + nitric acid ➡ aluminum nitrate + water
m_a_m_a [10]

Answer:

Chemical equation:

HNO₃ + Al(OH)₃   →  Al(NO₃)₃ + H₂O

Explanation:

Chemical equation:

HNO₃ + Al(OH)₃   →  Al(NO₃)₃ + H₂O

Balanced chemical equation:

3HNO₃ + Al(OH)₃   →  Al(NO₃)₃ + 3H₂O

Ionic equation:

3H⁺ + 3NO⁻₃(aq) + Al(OH)₃(s)   →  Al³⁺(aq) + 3NO₃⁻¹(aq) + 3H₂O(l)

Net ionic equation:

Al(OH)₃(s)  +  3H⁺(aq)     →  Al³⁺(aq) +  3H₂O(l)

The NO⁻₃ are spectator ions that's why these are not written in net ionic equation. The water can not be splitted into ions because it is present in liquid form.

Spectator ions:

These ions are same in both side of chemical reaction. These ions are cancel out. Their presence can not effect the equilibrium of reaction that's why these ions are omitted in net ionic equation.  

4 0
3 years ago
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