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Virty [35]
2 years ago
6

What would be the products for the reaction Br2 + KI →? (Just identify the correct products for the reaction. You do not need to

balance the equation.) 1. BrI + K+ 2. I2 + KBr 3. I 1− + K+ 4. No reaction would occur.
Chemistry
1 answer:
Savatey [412]2 years ago
5 0

<u>Answer:</u> The products of the reaction will be I_2\text{ and }KBr

<u>Explanation:</u>

Single displacement reaction is defined as the reaction in which more reactive element displaces a less reactive element from its chemical reaction.

The general chemical equation for the single displacement reaction follows:

A+BC\rightarrow AC+B

The given chemical equation follows:

Br_2+2KI\rightarrow I_2+2KBr

Bromine element is more reactive than iodine element. Thus, can easily replace iodine from its chemical reaction.

Hence, the products of the reaction will be I_2\text{ and }KBr

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The other three, preventing excessive rain, the schedule of cyclones, and the frequency of severe weather conditions, are not under human control.
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In looking at the bolded atoms in the answer choices, which pair consists of molecules having the same geometry? view available
Molodets [167]
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2 years ago
A flask of fixed volume contains 1.0 mole of gaseous carbon dioxide and 88 g of solid carbon dioxide. The original pressure and
lianna [129]

Answer:

The correct option is: C. 250 K

Explanation:

Given: <em><u>Before Sublimation-</u></em>

Initial Temperature: T₁ = 300 K, Initial Pressure: P₁ = 1 atm, Initial number of moles of gas: n₁ = 1 mol, given mass of solid Carbon dioxide: w = 88 g    

<u><em>After Sublimation- </em></u>      

Final Pressure: P₂ = 2.5 atm, Final number of moles of gas: n₂ = ? mol

Final Temperature: T₂ = ? K,            

Also, Volume is constant, Molar mass of Carbon dioxide: m = 44 g/mol

As we know,

<em>The number of moles:</em>

n = \frac {given\: mass\: (w)} {Molar\: mass\: (m)}

<em>So the number of moles of carbon dioxide sublimed:</em>

n = \frac {w}{m} = \frac {88\: g} {44\: g/mol} = 2 mol

<em><u>Therefore, the final number of moles of gas after sublimation:</u></em>

n_{2} = n_{1} + n = 1\: mol + 2\: mol = 3\: mol

<u><em>According to the </em></u><u><em>Ideal gas equation</em></u><u><em>:</em></u>

P.V = n.R.T

or, \frac {P_{1}.V_{1}}{n_{1}.T_{1}} = \frac {P_{2}.V_{2}}{n_{2}.T_{2}} \: \: \: \: \: \: ....equation\: (1)

<em>Since the volume is constant, so the equation (1) can be written as:</em>

\frac {P_{1}}{n_{1}.T_{1}} = \frac {P_{2}}{n_{2}.T_{2}}

\Rightarrow \frac {1\:atm}{1\:mol \times 300\:K} = \frac {2.5\:atm}{3\:mol \times T_{2}}

\therefore T_{2} = \frac {2.5\:atm \times 300\:K \times 1\:mol}{3\:mol \times 1\:atm}

\Rightarrow T_{2} = 250\:K

<u>Therefore, the final temperature: T₂ = 250 K</u>

6 0
2 years ago
What is the best description of what has happened to flowers when they change color as they mature?
SVEN [57.7K]

Answer:

The answer is (A)

Explanation:

When the weather changes, nature also changes because most plants rely on photosynthesis and if they don't get as much light then they can't support as much as they used causing them to shut down parts of the plant.

6 0
2 years ago
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