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chubhunter [2.5K]
3 years ago
9

i really need help with the rest of this assignment. theres 10 pages of multiple choice questions, i can mark brainliest and pay

money if you help me :)
Chemistry
1 answer:
Zina [86]3 years ago
3 0

Answer:

What's the assignment?

Explanation:

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A sound wave traveling through a certain freshwater lake has a frequency of 349.2 Hz and a wavelength of 4.25 m. What is the spe
dmitriy555 [2]

Answer:

The speed of a spound wave in this water is 1484.1 m/s

Explanation:

Step 1: Data given

Frequency = 349.2 Hz

Wavelength = 4.25 m

Step 2: Calculate the speed

v = f*λ

⇒ with v= the speed of a sound wave in this water

⇒ with f = the frequency = 349.2 Hz

⇒ with λ = the wavelength = 4.25 m

v = 349.2 Hz * 4.25 m = 1484.1 m/s

The speed of a spound wave in this water is 1484.1 m/s

7 0
3 years ago
Read 2 more answers
If earth was a hard boiled egg,which part of earth would the egg white represent?
romanna [79]

Answer:

The egg white will represent the outer layer which is the we are located on!

Explanation:

6 0
3 years ago
2Cu + O2 + 315kj - 2CuO. Is what kind of chemical reaction?
Naddika [18.5K]

There are <em>three</em> possibilities:

synthesis

redox (reduction/oxidation)

endothermic

3 0
4 years ago
Could someone please help me with number 2 I am really confused
murzikaleks [220]
Physicam because the size or form is changing not what its composed of
7 0
3 years ago
Draw the alcohol that is the product of the reduction of 3-methylpentanal.
natali 33 [55]

Answer: The product from the reduction reaction is

CH3-CH2-CH(CH3)-CH2-CH2OH

IUPAC name; 3- Methylpentan-1-ol

Explanation:

Since oxidation is simply the addition of oxygen to a compound and reduction is likewise the addition of hydrogen to a compound.

Therefore, hydrogen is added onto the carbon atom adjacent to oxygen in 3- methyl pentanal

CH3 CH2 CHCH3 CH2 CHO thereby -CHO( aldehyde functional group) are reduced to CH2OH ( Primary alcohol) which gives;

3-methylpenta-1-ol .

The structure of the product is:

CH3-CH2-CH(CH3)-CH2-CH2OH

7 0
4 years ago
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