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scoray [572]
3 years ago
7

When dilute HCL is added to zinc pieces taken in a test tube​

Chemistry
1 answer:
Romashka-Z-Leto [24]3 years ago
6 0

Answer:

zince chloride will be formed and hydrogen gas will be librated.

Explanation:

When dilute HCl is added to zinc pieces, a rection will takes place as follows :

Zn+HCl\rightarrow ZnCl_2+H_2

It means that zinc chloride will form when zinc reacts with dilute HCL. Also hydrogen gas will produced.

As zinc is more reactive than hydrogen, it displaces hydrogen from its solution and forms zinc chloride. The form product is white in color and H₂ is an odorless gas.

Hence, zince chloride will be formed and hydrogen gas will be librated.

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a substance that changes the rate of the reaction and is not consumed in the reaction 1 catalyst 2. a uniform mixture of molecul
umka21 [38]

Answer by YourHope:


Hi! :)


Answers:


A catalyst is a substance that changes the rate of the reaction, and is not consumed in the reaction!


A solution is a uniform mixture of molecules or ions of one substance in another!


A solute is the substance dissolved in a solution!


A solution is the substance that does the dissolving in a solution!


Have a BEAUTIFUL day~

4 0
3 years ago
Read 2 more answers
Use the formula for pressure to determine the weight of a box that creates a pressure of 1,065 N/cm2 when resting on a 17.0-cm2
Sloan [31]

Force /Area = Pressure
Force = Pressure * Area
Force = 1065 * 17 = 18105 N

weight  = 18105 N

I hope this helps!
8 0
3 years ago
Read 2 more answers
The ph of 0.010 m aqueous aniline is 8.32. What is the percentage protonated?
LekaFEV [45]

Answer : The percentage aniline protonated is, 0.0209 %

Explanation :

First we have to calculate the pOH.

pH+pOH=14\\\\pOH=14-pH\\\\pOH=14-8.32\\\\pOH=5.68

Now we have to calculate the hydroxide ion concentration.

pOH=-\log [OH^-]

5.68=-\log [OH^-]

[OH^-]=2.09\times 10^{-6}M

The equilibrium chemical reaction will be:

NH_3+H_2O\rightleftharpoons NH_4^++OH^-

From the reaction we conclude that,

Concentration of OH^- ion = Concentration of NH_4^+ ion = 2.09\times 10^{-6}M

Now we have to calculate the percentage aniline protonated.

\text{percentage aniline protonated}=\frac{2.09\times 10^{-6}M}{0.010M}\times 100

\text{percentage aniline protonated}=0.0209\%

Thus, the percentage aniline protonated is, 0.0209 %

7 0
3 years ago
Which one of the following characteristics indicates the presence of weak intermolecular forces in a liquid?A) none of the above
grin007 [14]

Answer:

C) a low heat of vaporization.

Explanation:

It is C) a low heat of vaporization.

Low heat of vaporization means less amount of energy is required to vaporize a liquid. This further means the liquid has weaker intermolecular force of attraction that is why on provide lesser heat only it vaporizes.

Low vapor pressure, high boiling point and high critical temp. all contribute to strong intermolecular forces in a liquid

6 0
3 years ago
The fragrant organic compounds found in many flowers that contain a carbonyl group bonded to a carbon atom and a hydrogen atom a
Mandarinka [93]
The fragrant organic compounds found in many flowers that contain a carbonyl group bonded to a carbon atom and a hydrogen atom are called aldehydes.
4 0
3 years ago
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