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Yuri [45]
3 years ago
7

Can any one plz solve and send this question who ever solve this right I will make you brainliest ​this is physic

Chemistry
1 answer:
dybincka [34]3 years ago
4 0

Answer: Energy = 10000J - 2000J = 8000J

Therefore, the energy is dissipated the skier moves down to the slope is 8000J

Explanation:

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Which of the following solutions contains the largest number of moles of dissolved particles? a.) 25 ml of sodium chloride b.) 2
kirza4 [7]

Answer:

b.) 25 ml of aluminum hydroxide

Explanation:

For this question, we have to assume that we have the <u>same concentration</u> for all the solutions, for example, <u>1 M</u>. Additionally, we have to take into account the <u>ionization reaction</u> for each species:

a) NaCl~->~Na^+~+~Cl^- <u>we have to ions</u>

b) Al(OH)_3~->~Al^+^3~+~3OH^- <u>we have fourth ions</u>

c) CH_3COOH~->~CH_3COO^-~+~H^+ <u>we have two ions</u>

d) C_6H_1_2O_6~->~C_6H_1_2O_6  <u>we have one ion</u>

If we have the same volume and the same concentration the variables that will help us to answer the question would be the n<u>umber of ions.</u> If we have <u>more ions we will have more particles dissolved</u>. Therefore the answer would be b) (<u>due to the fourth ions</u>).

I hope it helps

5 0
3 years ago
Read 2 more answers
Provide a series of synthetic steps by which 2-bromo-4-nitrobenzoic acid can be prepared from toluene.
Lilit [14]
The strategy adopted for for the synthesis of <span>2-bromo-4-nitrobenzoic acid is as follow,

1) First Nitration of Toluene was done because the product formed (4-Nitrotoluene) will direct the next incoming electrophile (i.e. -Br) to ortho position with respect to -CH</span>₃ (ortho para directing) and at meta position with respect to -NO₂ (meta directing).

2) Bromination gave the exact desired product as discussed in point 1.

3) At last oxidation of toluene yield benzoic acid. No other substituent is oxidized other than -CH₃ group.

4 0
3 years ago
Science chemistry Question:<br>​
shutvik [7]

Are you doing a quiz?

6 0
3 years ago
7. Calculate the amount of energy required heat 100.g to <br> H2O(s) changes to H2O(l) at 0°C
Brrunno [24]

Answer:

33300J

Explanation:

Given parameters:

Mass of ice  = 100g

Unknown:

Amount of energy = ?

Solution:

This is a phase change process from solid to liquid. In this case, the latent heat of melting of ice is 3.33 x 10⁵ J/kg.

 So;

            H  = mL

m is the mass

L is the latent heat of melting ice

  Now, insert the parameters and solve;

            H = mL

 mass from gram to kilogram;

            100g gives 0.1kg

  H = 0.1 x 3.33 x 10⁵ = 33300J

8 0
3 years ago
What scientist determined that atomic mass did not determine the pattern of the periodic table? A. James Watson B. Henry Moseley
marta [7]
The answer is B. Henry Moseley
5 0
3 years ago
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