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3 years ago

Why doesn't the reaction Pb+Zn(C2H3O2)2--> Zn + Pb(C2H3O2)2 occur?

1 answer:

5 0

Because zinc is above lead on the activity series. This means that in a single displacement reaction such as this one, Pb will not easily displace Zn.

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Ethyl ethanoate undergoes following reaction [on the picture]

vichka [17]

<u>Answer:</u> The concentration of ethyl ethanoate at equilibrium is $0.653mol/dm^3$

<u>Explanation:</u>

Given values:

Equilibrium concentration of ethanol = $0.42mol/dm^3$

Equilibrium concentration of ethanoic acid = $0.42mol/dm^3$

$K_c=0.27$

The given chemical equation follows:

$CH_3COOC_2H_5+H_2O\rightleftharpoons C_2H_5OH+CH_3COOH$

The expression of $K_c$ for above equation follows:

$K_c=\frac{[C_2H_5OH][CH_3COOH]}{[CH_3COOC_2H_5]}$

Putting values in above expression, we get:

$0.27=\frac{0.42\times 0.42}{[CH_3COOC_2H_5]}$

$[CH_3COOC_2H_5]=\frac{0.42\times 0.42}{0.27}=0.653mol/dm^3$

Hence, the concentration of ethyl ethanoate at equilibrium is $0.653mol/dm^3$

5 0

3 years ago

HeLP PLZ!!!!!!!Determine whether each of the following is a covalent or ionic compound? im not sure if im right. Covalent: OF2,P

Svetradugi [14.3K]

Ionic compounds are composed of a non-metal as the anion and a metal as the cation. Covalent compounds on the other hand are composed of both non-metals from both charges. In this case, OF2 is covalent, PBr3 is covalent, SeO2 is ionic, C5H12 is covalent, and CBr4 is covalent.

5 0

3 years ago

Select the correct answer. Which scientist performed the cathode ray experiment leading to the discovery of electrons? A. Dalton

MrRa [10]

Hi,
The answer should be letter E, Thomson.

4 0

3 years ago

Read 2 more answers

Casey remembers that molecular motion increases as temperature increases. Identify what effect increased molecular motion.

Anastaziya [24]

Molecular motion increases as temperature increases and therefore increasing the molecular motion increases collision frequency.

Explanation:

When a substance is heated, its molecules gain increased kinetic energy even as the substance increases in temperatures. With higher kinetic energy, this means the molecules are moving more rapidly and hence collision between the molecules will be more frequent and of higher energy. It is these high energy collisions that cause the molecules to move further away from each other with increased temperatures (why substances expand).

Learn More:

For more on relationship between temperatures and molecular motion check out;

brainly.com/question/11659700

brainly.com/question/874953

brainly.com/question/2731193

brainly.com/question/2257506

#LearnWithBrainly

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3 years ago

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The attractive force that holds atoms or ions together is called mixture . True or false

Masteriza [31]