6g of calcium chloride must be heated in

order to dissolve it in a test tube of water.

After an experiment, as a test tube of salt

solution cools, salt forms at the bottom of

the test tube

As soda is heated, the amount of Carbon

dioxide dissolved in it decreases.

Calcium Chloride is more soluble when it

is heated

It take more time stirring to dissolve salt

in 100ml than it does in 200mL of water.

More salt can be dissolved in a 250ml

beaker of water than in a 100ml beaker of

water

More sugar can be dissolved in Hot tea

than iced tea

The solubility of Sodium Chloride is

almost identical at 15, 20, 25 and 30°C

Supports conclusion

Brings into question this conclusion

Neutral observation

Answers

Answer 1

Answer:

See explanation

Explanation:

I will try to explain each point mentioned to the best of my ability.

The dissolution of calcium chloride in water is endothermic hence more solute dissolves as the temperature increases. When the solution cools, the solubility of the solid also decreases with decreasing temperature hence the solid reappears.

When soda is heated, carbon dioxide gas is evolved thereby decreasing the amount of dissolved carbon dioxide.

Let me state that increase in volume of solvent increases the amount of solute that can dissolve in it. This is why 250ml volume of solvent can dissolve more solute than 100ml of solvent.

Also, temperature is an important factor when discussing the solubility of a solute. This is why the temperature at which a certain value of solubility is quoted must be indicated. For solids, solubility increases with increase in temperature.

Lastly, the solubility of sodium chloride is independent of temperature. This is clearly seen by plotting a solubility curve.


Related Questions

what do you think is a way for geologist to locate ore bodies? justify your answer​

Answers

Answer:

Explanation:

what do you think is a way for geologist to locate ore bodies? justify your answer​

From my research, there is lots of information on how to extract ore, but I can't find any information on how these ore deposits are found in the first place, apart from 'looking for surface formations'. So, what kind of formations would exist for different types of ore? Are there any other ways of finding ore?

BEST ANSWER WILL GET BRAINLIEST!

Skin cells,

A: Have terminally differentiated

B: Become quiescent quickly

C: Become senescent quickly

D: Continually replicate


Which type of cell undergoes terminal differentiation?,

A: Stem cells

B: Epithelial cells

C: Hair cells

D: Heart cells


DNA replicates in the,

A: Cytoplasm

B: Cell membrane

C: Endoplasmic Reticulum

D: Nucleus


Which of the following might affect gene expression in a complex organism?,

A: The cells adjacency to other kinds of cells

B: The number of chromosomes being copied

C: The amount of time a cell takes to replicate

D: The ability to reverse terminal differentiation


What replicates during mitosis?,

A: Cytoplasm

B: Proteins

C: Organelles

D: DNA

Answers

Answer:1B 2.D 3.D 4.C 5.D not sure about 4 and 5 but the rest are right

Explanation:

Answer:

(Not using letters as they vary)

1. Skin cells...

become senescent quickly.

2. Which type of cell undergoes terminal differentiation?

Heart cells

3. DNA replicates in the...

Nucleus

4. Which of the following might affect gene expression in a complex organism?

The types of cells near the site

5.  What replicates during mitosis?

cells

Explanation:

Hope this helps :D

How will help preserve kitchen
tools to avoid rusting?​

Answers

do not let it stay wet for long periods of time and dry if off after wash

what is the basic of the cell membrane

Answers

Answer:

Cell membranes are composed primarily of fatty-acid-based lipids and proteins.

Explanation:

How many people have you sacrificed to floor gang?

Answers

Answer:

85

Explanation:

I lost count after 738

I'm pretty sure it's well over a thousand but I can't be sure

What is the purpose of Mitosis? *
A. To produce an egg and a sperm cell.
B. To produce a new organism (like bacteria).
C. To produce a new cell (NOT a new organism).
D. To differentiate.

Answers

Answer:

C.

Explanation: Mitosis is a process where a single cell divides into two identical daughter cells (cell division). During mitosis one cell? divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.

Hope this helps! Have a nice day!

Answer:

C. to produce a new cell

Explanation:

Mitosis consists in replicating the genetic material of a mother cell in order to make two identical daughter cells; this is a diploid process. In order to make an egg or sperm cell and eventually a new organism, the correct process would be meiosis, since it combines the DNA between two cells and it is an haploid process.

A. Is the suspect guilty of the crime? B. How do you know?
WILL MARK BRAINLIEST FOR COMPLETE AND CORRECT ANSWER!

Answers

Answer:

A: yes

Explanation:

B: Sample three is a mixture of the suspect and victims. Putting it simply, if you line up the victims DNA and remove it from sample 2 you are left with a sample of DNA that is identical to the suspects.

What are the disadvantages of polygamous in animals

Answers

Answer:

The principal disadvantage of monogamy is a lack of variety. Monogamy has the potential to lead to routine, and possibly boredom. People often equate excitement in a relationship with the ability to be with a number of individuals, potentially as part of an open or sometimes polyamorous relationship.

Explanation:

What type of cell is shown in the diagram above? Explain your answer.

Answers

Answer:

Plant Cell

Explanation:

It is shaped like a rectangle and has a huge vacuole which is the biggest thing in a plant cell. Your welcome :)

Describe the relationship between photosynthesis and cellular respiration.

Answers

Answer:

Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.

Explanation:

Rainforests around the world are being cleared at an alarming rate to make room for new communities, agriculture, mining, and roads, and to provide lumber for construction and furniture. How might the destruction of rainforests affect the balance of gases in Earth's atmosphere?

Answers

This question is incomplete because the options are missing; here is the missing section:

How might the destruction of rainforests affect the balance of gases in Earth's atmosphere?

by increasing carbon dioxide and decreasing oxygen

by increasing carbon dioxide and increasing oxygen

by decreasing carbon dioxide and increasing oxygen

by decreasing carbon dioxide and decreasing oxygen

The answer to this question is by increasing carbon dioxide and decreasing oxygen.

Explanation:

Rainforests have a vital role on Earth because these regulate the levels of oxygen vs carbon dioxide. This is because plants including trees, grasses, shrubs, etc. require carbon dioxide as part of the photosynthesis process, and they release oxygen at the end of the process. In this way, rainforests reduce the amount of carbon dioxide and increase oxygen.

In this context, deforestation or the destruction of rainforest for mining, roads, etc. implies there are fewer plants, and therefore, less carbon dioxide is being used and less oxygen is released. This causes an increase in carbon dioxide and a decrease in oxygen.

by increasing carbon dioxide and decreasing oxygen

Describe the steps of Meiosis I and Meiosis II.​

Answers

Answer:

Hello

Explanation:

Overview of the Stages of Meiosis  

Interphase. There are two stages or phases of meiosis: meiosis I and meiosis II. Before a dividing cell enters meiosis,...

Prophase I. Chromosomes condense and attach to the nuclear envelope. Synapsis occurs (a pair of homologous chromosomes...

Metaphase I. Tetrads align at the metaphase plate. Note that the centromeres of homologous...

Hope This Helps!!

Many people try to eliminate fat from their diets. Which is one reason it is
necessary for humans to eat fat?

Answers

Answer:

the internal organs of the body is cushioned by fat. fat is adipose tissue stored in the body. fat is as important as such other micro molecules such as protein carbohydrates. they serve the body in many ways out of those one of the important function is protection of internal organs.

Need answer ASAP!!

Which describes a species?

A. organisms that live in the same area

B. organisms that breed and produce fertile offspring

C. organisms that look similar

Answers

Answer:

B

Explanation:

organisms that breed and produce fertile offspring

Answer:

B. organisms that breed and produce fertile offspring

Explanation:

Verified correct with test results.

what is the average human body temperature?

Answers

Answer: average oral temperature is  97.5˚ or stated as 36.5–37.5 °C

Explanation:

Answer:

98.6 degrees Fahrenheit.

Explanation:

What is located outside of the center of the atom?​

Answers

Answer:

Nucleus

Explanation:

Protons and neutrons are found in the nucleus.

Which of the following does NOT describe an acute injury?

over-stretching a muscle

popping a joint out of place

breaking an arm or leg bone

developing lung cancer

Answers

Answer:

developing lung cancer

Explanation:

i got it right on the assignment

Answer:

Developing lung cancer

Explanation: Edge 2021

3. Which of the following is a defining characteristic of a prokaryotic cell?

a. The method of cellular Respiration
b. The composition of the cell membrane
C. Absence of a membrane-bound nucleus
d. The method of movement

Answers

Answer:

C

Explanation:

Prokaryotic cells do not have any membrane-bound organelles, only eukaryotes do.

The prokaryotic cell is a simple primitive cell, unlike the complex eukaryotic cells. The absence of a membrane-bound nucleus is a characteristic of prokaryotes. Thus, option C is correct.

What is a prokaryotic cell?

Prokaryotes have been the cells that have lived on earth for millions of years ago. They are made of single cells and hence are unicellular. Unlike the eukaryotic cell, they have simple mechanisms of living and reproduction.

They lack a centrally located defined nucleus that is not covered in any membrane and lies simply in the cytoplasmic material. Also, they lack organelles that make them different.

The genetic material is located in a concentrated form in a structure called the nucleoid that lacks a nuclear membrane.

Therefore, option C. the prokaryote lacks a membrane-bound nucleus.

Learn more about prokaryotes, here:

https://brainly.com/question/16394495

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If a person combat the disease without a vaccine introduced to his body,such immunity is known as

natural active immunity

natural passive immunity

Artificial active immunity

artificial passive immunity​

Answers

Answer:natural active immunity

Explanation:lol it took too long

Which of the following would not be considered an observation in terms of the scientific method? A. tasting a pasta sauce after adding a new ingredient B. looking at a blood sample through a microscope C. a dog buries a bone in the backyard D.listening to bats of different materials hitting a baseball

Answers

Answer:

C. a dog buries a bone in the backyard

Explanation:

A dog burying a bone in the backyard is not an observation in terms of scientific methods.

Observation is the process of acquiring data about a phenomenon under study.

Most times, senses are used in making observations. Our sense of taste, hearing, sight etc. comes handy when making observation.

Also, we can use some specialized equipment to make observations.

A dog burying a bone in the backyard is not an observation. None of the senses nor instruments are used to gather any relevant information.

Enter the correct 4 digit code (no spaces)

Answers

Answer:1243

Explanation:

Answer:

4123

Explanation:

I'm working on the same except mine says level two

What is the approximate diameter of the Zika virus?

Answers

I don't know I'm sorry I need point please forgive me

Why are plants in the alpine biome typically low growing?
a

Answers

Answer:

They have limited access to nutrients

Explanation:

I guess you forgot to but the answer choices, but that's okay!!!

Answer: Because  The soil in the alpine biome is rocky and nutrient poor. Plants that live in the alpine biome must be suited to the nutrient poor soil.

Explanation: They take longer to grow because of there environment


I am terrible at biology help me out here !!!

Answers

Answer: Nile Blue

Explanation: Nile Blue is used in conjunction with fluorescence microscopy to stain for the presence of polyhydroxybutyrate granules in prokaryotic and/or eukaryotic cells.

How would you describe the difference in the motion of the sled from when the people first start pushing to when the sled is halfway down the hill?

Answers

The difference in the motion of the sled from when the people first start pushing to when the sled is halfway down the hill will be described as after starting off much more slowly, it picks up speed significantly by the bottom of the slope.

At the top of the hill, a sled has pushed itself. If we then apply a tiny push, the sled's initial speed will be 0, indicating that the sled's only starting energy is gravitational potential energy. Therefore, assuming there is no friction, the sled's greatest height will be equal to its initial brightness. So the slides will never make up for a bump that is higher than its starting point. The sled's highest point is equal to its initial height because of the rule of conservation of mechanical energy. The sled will never make it up if they restrict it if the friction is seated.

To learn more about Friction visit: https://brainly.com/question/28356847

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What does it represent?

Answers

Answer:

3

Explanation:

The arrows show the transfer of energy through prey and predator. When the deer eats the leaves, energy from the plant is transferred to the deer.

The correct answer is 3, the flow of energy
When they eat one another, the energy transfers

what characteristics are affected by genetics?

Answers

Answer:

Well.

Explanation:

1. Weight

2. Height

3. Chronic Diseases

4. Skin color

5. Eye color

6. Race

7. Hair color

8. And the overall shape of your whole body (ie, head shape)

Answer:

The characteristics that are impacted by genetics are :

-The eye color

-The nose shape

-Hair color

-Face shape

-Skin color

-And any type of beauty mark someone has

What will happen to plants that are kept in the dark?

Answers

Answer:

they die

Explanation:

They won’t get sunlight so they won’t grow they will end out dying because plants need sunlight to survive.

All of the following are nitrogenous bases of DNA, EXCEPT -
guanine.
adenine.
uracil.
thymine.

Answers

Answer:

adenine

Explanation:

Answer:

uracil

Explanation:

The 4 bases of DNA are adenine, guanine, thymine and cytosine.

Pls help me for brainliest

Answers

Answer:

b new experiments will be conducted until evidence supporting the accepted theories is obtained

Answer:

C. The accepted theory will be revised or replaced

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