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3 years ago

Match the words to the appropriate blanks in the sentences.

Chemistry

1 answer:

Mariulka [41]3 years ago

7 0

Answer:

a. NO2

b. NH3

c. CO2

Explanation:

a. For the pair of compounds CO2 or NO2 the one with the highest boiling point is __________ .

The answer is NO2. It has a higher boiling point than CO2 because it exhibits dipole-dipole interactions.

b. For the pair of compounds NH3 or CH4 the one with the highest boiling point is _________

NH3 has a higher boiling point compared to CH4. This is due to the presence of the hydrogen bonds in NH3,

c. For the pair of compounds CS2 or CO2 the one with the highest boiling point is _________

CS2 has a higher boiling point than CO2. This is because of the high molecular mass of CS2.

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What is the answer plzzzzzz help ASAP

zhuklara [117]

The answer is C) reactants because a chemical reaction is the process in which atoms present in the starting substance rearrange to give new chemical combinations present in the substance formed by the reaction

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2 years ago

Read 2 more answers

7. Halfway through a cross country meet, a

kondor19780726 [428]

Answer:

3m/s

Explanation:

Data obtained from the question include:

Initial speed (s1) = 4 m/s

Final speed (S2) = 7m/s

Change in speed (ΔS)

ΔS = s2 — s1

ΔS = 7 — 4

ΔS = 3m/s

Therefore, the change in speed is 3m/s

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3 years ago

The following equilibrium is formed when copper and bromide ions are placed in a solution:

JulsSmile [24]

Answer:

1. Reaction will shift rightwards towards the products.

2. It will turn green.

3. The solution will be cooler..

B) It will turn green.

Explanation:

Hello,

In this case, for the stated equilibrium:

$heat + Cu(H_2O)_6 ^{+2} (blue) + 4Br^- \rightleftharpoons 6H_2O + CuBr_4^{-2} (green)$

In such a way, by thinking out the Le Chatelier's principle, we can answer to each question:

1. If potassium bromide, which adds bromide ions, is added more reactant is being added to the solution, therefore, the reaction will shift rightwards towards the products.

2. The formation of the green complex is favored, therefore, it will turn green.

3. The solution will be cooler as heat is converted into "cold" in order to reestablish equilibrium.

B) In this case, as the heat is a reactant, if more heat is added, more products will be formed, which implies that it will turn green.

Regards.

3 0

3 years ago

Two sealed flasks each have a volume of 2.0 liters. Flask A contains N, O gas and Flask B contains H, gas both at 1

barxatty [35]

Answer:

Each gas have same number of molecules.

Explanation:

According to Avogadro law,

Equal volume of all the gases at same temperature and pressure have equal number of molecules.

Mathematical expression:

V ∝ n

V = Kn

V/n = K

k = constant

V = volume of gas

n = number of moles of gas

when volume change is changed from v1 to v2 and number of moles from n1 to n2 this law can be written as,

V1 / n1 = V2 /n2

This state that by increasing the number of moles of gas volume also goes to increase.

4 0

3 years ago

Why are many chemical names so complex?

Setler [38]

Answer:

cause they like it that way

Explanation:

btw cant tell if this is legit or not

3 0

2 years ago