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QveST [7]
3 years ago
8

When dissolving a solid, what happens to the rate of dissolution while stirring the solution

Chemistry
1 answer:
emmasim [6.3K]3 years ago
6 0

The rate of dissolution simply tells us how fast or slow a given solute will dissolve in a particular solvent. There are four main factors that affect this rate: temperature, stirring, area of contact, and saturation. 

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Find the volume of 20g of H₂ at STP<br><br>​
ANEK [815]

Answer:224

Explanation:

We should answer it with Stoichiometry

We say: 20 g H2× (1 mol/ 2g)× ( 22.4 lit/ 1 mol) = 224

Means: we have 20 grams and every 2g H2, equals to 1 mol of it and every 1 mol of H2, equals to 22.4 lit( because of STP)

hope you got this:)

6 0
3 years ago
Draw the lewis structure for the molecule ch3ch2cch. how many sigma and pi bonds does it contain?
babunello [35]
Answer:
             The structure of 1-Butyne is shown below and it contains;

                                         Nine Sigma Bonds

                                             Two Pi Bonds

Explanation:
                     
In given structure the sigma bonds are highlighted with blue colour and pi bonds are highlighted by Black colour and indicated by red arrows.
                     Remember the very first covalent bond between two atoms is always the sigma bond. After formation of sigma bond if further p orbitals with unpaired electrons are available they will form pi bond, or two pi bonds as in given scenario.

7 0
3 years ago
The density of an object is
uysha [10]

Answer:

Density is a measure of mass per unit of volume. Density is a measure of mass per volume. The average density of an object equals its total mass divided by its total volume.

I hope it helps.

Have a great day.

5 0
3 years ago
How are periods and groups different from each other?.
Bingel [31]

Answer:

Period and groups are different because

PERIODS are the number of shells

I.e in lame man words the no of circles when drawn an element

GROUPS : these are the number of electrons in the outermost shell

Groups determine the valency*

4 0
2 years ago
How are minute and seconds are related to degrees
jekas [21]

These minutes are further divided into sixty parts called seconds. The words minute and second used in this context have no immediate connection to how those words are usually used as amounts of time. In a full circle there are 360 degrees. Each degree is split up into 60 parts, each part being 1/60 of a degree.

No then contact me about that

5 0
3 years ago
Read 2 more answers
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