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ira [324]
4 years ago
6

Which is a example of a solution

Chemistry
1 answer:
Diano4ka-milaya [45]4 years ago
3 0

Answer:

Salt water

Explanation:

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Benzaldehyde, C6H5CHO, has a normal boiling point of 179.0 ∘C and a critical point at 422 ∘C and 45.9 atm.
Naya [18.7K]
Ln(P2/P1) = (L/R).(1/T1 - 1/T2) 

<span>with P1 = 1 atm, P2 = 45.9 atm, R = 8.314 J/mol.K, T1 = 452.15 K, T2 = 695.15 K. This gave the latent heat L as 41.2 kJ/mol.K. </span>

<span>Using this value, and calculating the vapour pressure at 120°C = 393.15 K </span>

<span>ln(P2) = (41.2 x 10^3/8.314).(1/452.15 - 1/393.15) </span>

<span>which gives the vapour pressure P2 as 0.1931 atm = 146.7 torr. </span>
5 0
3 years ago
How many neutrons are in the radioactive isotope 40/19? A. 40 B. 19 C. 21 D. 20
Olin [163]
The answer is B. 19 <span>✔

Its 19 because h</span><span> (atomic mass is4.02643(11) u) contains one proton and three </span>neutrons<span> in its nucleus. It is a highly unstable </span>isotope<span> of hydrogen. It has been synthesised in the laboratory by bombarding tritium with fast-moving deuterium nuclei.</span>
5 0
3 years ago
Read 2 more answers
Select all the correct answers.
OlgaM077 [116]

Answer:

It's The amount of matter within the system remains the same and The cycle has a well-defined starting and stopping point.

Explanation:

7 0
3 years ago
Ethanoic acid and 1-butanol can react to produce water and a compound classified as an 1) aldehyde 2) amine 3) ester 4) halide
kvv77 [185]

Answer:

3) ester

Explanation:

Esterification is the process in which alkanol and alkanoic acids reacts in the presence of a catalyst and heat. The product is usually an ester(alkanoate) and water.

For the reaction between ethanoic acid and 1-butanol, the product is butylethanoate and water as shown below:

               CH₃COOH + C₄H₈OH → CH₃COOC₄H₈ + H₂O

4 0
3 years ago
MULTIPLE CHOICE: For a combustion system, incorrect statement is?
GrogVix [38]

Answer:

I THINK it's D, I could be incorrect, however.

Explanation:

C3H8O, as it is flammable, and thus I wouldn't imagine it being a product of combustion. I could be incorrect, so take my answer with a grain of salt.

6 0
3 years ago
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