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Alex_Xolod [135]
3 years ago
7

How are waves reflected, absorbed, and transmitted through various materials​

Chemistry
1 answer:
EastWind [94]3 years ago
7 0

Answer:

Electromagnetic Radiation

Explanation:

When light shines on an object, it is reflected, absorbed, or transmitted through the object, depending on the object's material and the frequency (color) of the light. However, because light can travel through space, it cannot be a matter wave, like sound or water waves.

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Choose the statement below that is TRUE.
Leni [432]

Answer: Option (a) is the correct answer.

Explanation:

A weak acid is defined as an acid that dissociates partially when dissolve in water or a polar solvent.

For example, acetic acid is a weak acid and when dissolved in water it dissociates partly into ions as follows.

         CH_{3}COOH(aq) \rightleftharpoons CH_{3}COO^{-}(aq) + H^{+}(aq)

And, a strong acid is defined as an acid which when dissolved in water dissociates completely into ions.

For example, HCl is a strong acid and when dissolved in water it dissociates completely.

       HCl \rightarrow H^{+} + Cl^{-}

Thus, we can conclude that the statement a weak acid solution consists of mostly non-ionized acid molecules, is true.

7 0
3 years ago
The molecular mass of octane is 114.22 g/mol. What is the mass of 22.05 mol of octane?
strojnjashka [21]
<span>In this item, we are asked to calculate for the mass of 22.05 mole of octane given that its molecular mass is equal to 114.22 g/mol. To answer this item, we simply have to multiply the number of moles with the molecular mass. That is, (114.22 g/mol)(22.05 mol) which is equal to 2518.221 grams. </span>
3 0
3 years ago
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10. Copper(i) bromide reacts with magnesium metal: 2 CuBr + Mg → 2 Cu + MgBrz
velikii [3]

Answer:

72.6 grams

Explanation:

I got this answer through stoichiometry.  For every 1 mole of Mg, 2 moles of CuBr are consumed.  Because of this, multiply the moles of Mg by 2.  Then, convert moles to grams.

5 0
3 years ago
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During ________________________, a new nuclear membrane forms around eachgroup of chromosomes.
Gre4nikov [31]

Answer:

Telophase

Explanation:

I looked up the ending lol!hope  this helps

8 0
3 years ago
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Sav [38]
Dark is just absence of light like if the re container a and container b u nee to pour hcl from a to so a has hcl while b has absence of hcl

tell me if u need more examples.hope it helps

5 0
4 years ago
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