1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nevsk [136]
3 years ago
12

If 180 grams of potassium iodide is dissolved in 100 cm3 of water at 30oC, a(n) _______________ solution is formed. A) saturated

B) unsaturated C) oversaturated D) supersaturated Eliminate
Chemistry
2 answers:
dem82 [27]3 years ago
3 0
The answer is A) saturated
Murrr4er [49]3 years ago
3 0

Answer:

A) saturated

Explanation:

In an unsaturated solution, the solute is lower than the solvent in the chemical solution. When this occur, there is higher rate of dissolution of the solute in the solvent

A saturated solution is said to be a chemical solution in which the concentration of solute that is dissolving in the solvent is of equal proportion and at maximum  amount,

In a supersatured solution, there exists more solute than the solvent in the chemical solution. When this occur, there is higher rate of crystallization of the solute in the solvent

A solubility curve helps to show a diagrammatic graphical based representation of the amount of solute that is required to dissolve in a given amount of solvent at different temperatures.

Thus, potassium iodide is indeed soluble in water. At 20°C, it is said that the solubility of potassium iodide is 140 grams per 100 cm³ of water. This is similar to the 180 grams of potassium iodide which dissolves in 100 cm³ of water at 30°C because increase in temperature also increases the solubility of a solute in a solvent.

You might be interested in
A long chain of hydrocarbon bonded to cooh is a ________ acid.
vodomira [7]
A long chain of hydrocarbon bonded to COOH is a FATTY acid.
6 0
3 years ago
Read 2 more answers
What most likely led to a change in the widely accepted theory of evolution? new experiments involving genes and evolution exper
ss7ja [257]

Incomplete question. Full question reads;

Darwin developed the theory of evolution to explain why there are so many different kinds of living things. He could easily observe that offspring of any animals were slightly different from their parents and that this could allow for big changes over thousands of years. He did not know that genes caused the differences. Genes are now very important in the modern theory of evolution.

What most likely led to a change in the widely accepted theory of evolution?

Answer:

<u>new experiments involving genes and evolution </u>

<u>Explanation:</u>

Indeed, the original theory of evolution has experienced several changes in its acceptance because of its imperfect and wrong assumptions not based on generally acceptable scientific facts,

Hence, new experiments involving genes and evolution has led to a change (disagreements and few agreements) in the widely accepted theory of evolution.

3 0
3 years ago
Read 2 more answers
What elements make up duralumin( an alloy)?​
Bogdan [553]

Answer:

In addition to aluminium, the main materials in duralumin are copper, manganese and magnesium.

4 0
3 years ago
Read 2 more answers
4 Al + 3 O2 --&gt; 2 Al2O3
SIZIF [17.4K]

Answer:

The answer to your question is 7.4 moles of Aluminum

Explanation:

Data

moles of Al = ?

moles of Al₂O₃ = 3.7

Balanced chemical reaction

                4 Al  +  3 O₂  ⇒  2 Al₂O₃

To solve this problem use proportions and cross multiplication. Use the coefficients of the balanced chemical equation.

                4 moles of Aluminum ----------------- 2 moles of Al₂O₃

                 x                                  ----------------- 3.7 moles of Al₂O₃

                            x = (3.7 x 4) / 2

                            x = 14.8 / 2

                            x = 7.4 moles of Aluminum

5 0
3 years ago
2.91 moles of aluminum are how many grams(with work)
pentagon [3]
2.91 mol Al * ( 26.982 g Al / 1 mol Al) = 78.518 grams
3 0
3 years ago
Read 2 more answers
Other questions:
  • At atmospheric pressure a balloon contains 2.00 l of nitrogen gas how would the volume change \
    7·1 answer
  • There is a old phrase digging a hole through the earth's center would bring you out in china if you could drill a hole from long
    7·1 answer
  • Help! Will mark brainliest! Explain why a mechanical wave does not exist in a vacuum.
    7·1 answer
  • Explain three path ways of respiration​
    15·1 answer
  • Which choice is not a property of an acid?
    5·1 answer
  • What is the concentration of bromide, in ppm, if 115.91 g MgBr2 is dissolved in 1.31 L water.
    12·1 answer
  • Which term describes a consumer that eats both plants and animals? A. carnivore B. herbivore C. omnivore D. producer
    7·2 answers
  • Phosphorus-32 has a half life of 14.3 days. How many days will it take for a
    8·1 answer
  • Imagine that you are in chemistry lab and need to make 1.00 L of a solution with a pH of 2.60.
    7·1 answer
  • Can tissue samples be deproteinized for measurement of NAPD/NADPH with 4%w/v sulfosalycilic acid?​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!