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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.

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Two species of frog mate in the same pond. One breeds in early summer and one in late summer. This is an example of what kind of
MatroZZZ [7]

Answer:

Pre-zygotic, temporal separation

Explanation:

Reproductive isolation mechanism is of two types:

  • Prezygotic mechanism
  • Postzygotic mechanism

Prezygotic mechanism isolation occurs before fertilization and helpful in preventing formation of fertile offspring.

In frog external fertilization occurs. In the external fertilization, eggs and sperms are released in water and fertilization occur outside the water.

Prezygotic isolating mechanisms may include behavioral isolation, temporal isolation, mechanical isolation, gametic isolation and habitat isolation.

Temporal separation in reproduction is the sexual activity in the same geographical range but in different periods.

Therefore, the given reproductive isolation is pre-zygotic, temporal separation.

4 0
3 years ago
The center on your school’s basketball team is 6 ft 10 in tall. How tall is the player in millimeters (mm)?
svp [43]

The answer is 6 ft 10 inches in millimeters (mm) is 0.833 ft.

Given,

The center of the school's basketball team is 6 ft 10 inches tall.

We have to convert the height of the player from feet and inches to feet.

Using the conversion factor,

1 ft = 12 inches

or, 12inches/ 1 ft

Converting 6ft 10 inches to ft, we get;

10 inches × 1 ft/ 12inches

= 0.833 ft

Therefore 6 ft 10 inches in millimeters (mm) is 0.833 ft.

Unit conversion is a method in which we multiply or divide with a particular numerical factor and then finally round off to the nearest significant digits.

To learn more about Millimeter and Unit conversions, visit: brainly.com/question/26371870

#SPJ4

5 0
1 year ago
What is the action force and the reaction force when you sit down on the chair
NISA [10]
The action force is you sitting on the chair and the reaction force is the gravity on the chair that is caused by you sitting on the chair
8 0
2 years ago
C9H20 +<br> 02 - &gt; CO2 +<br> H2O<br><br> what is the balanced equation of this
san4es73 [151]

Hey there!

C₉H₂O + O₂ → CO₂ + H₂O

First let's balance the C.

There's 9 on the left and 1 on the right. So, let's add a coefficient of 9 in front of CO₂.

C₉H₂O + O₂ → 9CO₂ + H₂O

Next let's balance the H.

There's 2 on the left and 2 on the right. This means it's already balanced.

C₉H₂O + O₂ → 9CO₂ + H₂O

Lastly, let's balance the O.

There's 3 on the left and 19 on the right. So, let's add a coefficient of 9 in front of O₂.

C₉H₂O + 9O₂ → 9CO₂ + H₂O

This is our final balanced equation.

Hope this helps!

8 0
2 years ago
Which of the following identifies the initial type of energy needed to power a hydro plant?
MAXImum [283]

Answer:

kinetic

Explanation:

kinetic energy starts the motion of water which in turn converts electricity

7 0
2 years ago
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