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nata0808 [166]
3 years ago
11

Frank and Lisa are analyzing the chart, which shows the speed at which light travels through different media.

Chemistry
2 answers:
Olin [163]3 years ago
6 0
It will be C. neither
S_A_V [24]3 years ago
6 0

Answer: The correct answer is "Neither person is correct because light does not change frequency when it travels through different media".

Explanation:

The speed of the wave depends on the medium through which it is travelling. The speed of the light is more in the rarer medium than the denser medium.

Frank says that light travels through diamond with the greatest frequency.  Lisa says that light travels through air with the greatest frequency. Both are wrong as the frequency remains constant when the light is travelling from one medium to another. The speed of light is lowest in diamond.

Therefore, the correct option is (c).

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Without doing any calculations, determine which of the following solutions would be most acidic.
Murljashka [212]

Answer:

In the first combination neutralization takes place to give a salt. So, solution 'a' is neutral in nature.

In the solution 'c', both salts are resulted by the combination of weak base and strong acid. The combination of these salts suppresses the acidity.

In last combination basic nature is observed due to the presence of CN⁻ ions. Thus, the solution 'd' is basic in nature.

Out of the five given solutions, 0.0100 M in HF and 0.0100 M in KBr is most acidic.  Therefore, solution 'b' is most acidic in nature.

Explanation:

5 0
3 years ago
Please help! I really don’t understand it
chubhunter [2.5K]

Answer:

C. It makes sure there is a balance inside the body

Explanation:

Hope this helps

7 0
2 years ago
Read 2 more answers
Water is amphoteric. If it reacts with a compound that is a stronger acid than itself, water acts as a
kirza4 [7]

Answer:

Water acts as a base in the presence of a strong acid

Explanation:

Water,being an amphoteric compound, can act both as an acid and as a base.

In the presence of an acid , water acts as a base but in the presence of a base, water acts as an acid.

5 0
2 years ago
6.
GuDViN [60]

Answer:

A phosphorus atom forms a P3- ion by gaining three electrons.

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4 0
2 years ago
How many grams of sodium chloride are contained in 250.0 g of a 15% NaCl solution?
kramer

Given concentration of NaCl=15%

Means ,

In every 100g of Solution 15g of NaCl is present .

Now

  • Given mass=250g

So ,

\\ \Large\sf\longmapsto 250\times 15\%

\\ \Large\sf\longmapsto 250\times \dfrac{15}{100}

\\ \Large\sf\longmapsto 37.5g

<u>37.5g of NaCl present in 250g of solution.</u>

8 0
3 years ago
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