Baking soda (sodium bicarbonate) dissolved in the water, releasing carbon dioxide. Why was it important to add the baking soda?

Answers

Answer 1
The reaction of sodium bicarbonate (baking soda) and acetic acid (vinegar) produces carbon dioxide gas, water and sodium acetate (soluble in water). The carbon dioxide gas can originally be seen as bubbles in the solution, but will quickly be released from the solution.

Related Questions

Over half of the people in the United States rely on groundwater for drinking water.


Please select the best answer from the choices provided

T
F

Answers

Over half of the people in the United States rely on groundwater for drinking water. This is true.
I believe This is true

Which of these is not a function of connective tissue in the body?
a. make blood cells
b. connects parts of the body
c. support softer organs of the body
d. store fat
e. line internal body cavities?

Answers

the correct answer is E

Complex networks of interconnected food chains are ____.

Answers

complex networks of interconnected food chains are called a food web

Answer:

food webs

Explanation:

third sentence of paragraph under that photo of curriculum and food web says "A food web is a group of connected food chains."

heres a picture of another version of a food web with all the lines and arrows

and a correct test grade

In selective-breeding procedures, members of a species that display a particular attribute are bred to each other. if the particular attribute is inherited, it is expected that subsequent generations of offspring will

Answers

... increase their chances of displaying this said attribute in higher incidence and frequency

One kingdom contains only eukaryotes but includes a wide variety of organisms. It includes both unicellular and multicellular organisms. Some organisms eat others, while some can make their own food.

Which domain is described by these statements?

Bacteria
Archaea
Fungi
Protists

Answers

Answer:

Protists

Explanation:

There are different number of kingdoms (varying from 2 to 6) recognized by different classification systems.

According to five kingdom classification system, the organisms can be divided into

1- Kingdom Monera

2- Kingdom Protista

3- Kingdom Plantae

4- Kingdom Fungi

5- Kingdom Animalia

KINGDOM MONERA (PROKARYOTAE):

They consist of organisms with prokaryotic cells.It contains unicellular organisms. Some organisms can synthesize their own food while others can't.

EXAMPLES:

Bacteria Archae

KINGDOM PROTISTA (PROTOCTISTA):

Organisms belonging to this classification are called protists. Protists have eukaryotic cells.Some are unicellular organisms while others are multiceullular.Some organisms of this kingdom can synthesize their own food while some consume other organisms.

EXAMPLES:

Amoeba Plasmodium

KINGDOM FUNGI

They consist of eukaryotic cells.They range from unicellular to multicellular organisms.They cannot synthesize their own food. They absorb the organism after digesting it outside the body and thus can't directly consume other organisms.

EXAMPLES:

YeastClub fungi

Some organisms eat others, while some can make their own food are Protists, is eukaryotic organism that is not an animal, plant, or fungus.

What are 3 examples of protists?

Protists is eukaryotic organism that is not an animal, plant, or fungus.

Examples of protists have algae, amoebas, euglena, plasmodium, and slime moulds.

Protists that are have of photosynthesis include various types of algae, diatoms, dinoflagellates, and euglena.

Thus, correct option is "4"  Protists, is eukaryotic organism that is not an animal, plant, or fungus.

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Scandium through zinc,to what general class of elements do they belong

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Scandium through zinc belong to the general class of elements called TRANSITION METALS.
Transition metals refers to those elements in the D block of the periodic table; these include group three to twelve of the periodic table. From group 3 to 12, the elements are 38 in number and all of them are malleable, ductile and they can conduct heat.

ur data for diffusion of water across a differentially permeable membrane in response to a sucrose gradient could be graphed with Change in Weight on the vertical axis rather than Total Weight. How would you interpret the slope of the curves produced when you do this?

Answers

The slopes show that sucrose gradient affects change in weight.

The slopes will be different because higher gradient concentration of sucrose will result in the higher amount of water moved. This means the higher sucrose gradient concentration, the more change in weight of the water. 

A nurse has provided education to a client with hypothyroidism who has a new prescription for levothyroxine. what statements by the client would indicate they understand the instructions?

Answers

Levothyroxine medicine is taking on an empty stomach, 30 minutes before eating. Levothyroxine is usually taken in the morning. Follow your doctor's dosing instructions and try to take the medicine at the same time each day. It may take several weeks before your body starts to respond to this medication.

Final answer:

A client with hypothyroidism understands the instructions for levothyroxine if they acknowledge the importance of taking the prescribed dosage consistently, the necessity for regular monitoring and adjustments, and that medication needs may change over time.

Explanation:

Statements by the client that would indicate they understand the instructions for taking levothyroxine, a medication for hypothyroidism, might include recognizing the importance of taking the prescribed dosage at the same time each day to maintain consistent hormone levels. The client should also acknowledge the need for regular monitoring of thyroid hormone levels and potential dose adjustments by their healthcare provider to avoid side effects and ensure optimal treatment. Additionally, the client would understand that depending on the underlying cause of hypothyroidism, they might not need to take this medication for life, as certain conditions such as hypothyroidism during pregnancy may be temporary.

The function of yellow bone marrow is __________.
a. acid-base homeostasis
b. hematopoiesis
c. triglyceride storage
d. mineral storage

Answers

c. triglyceride storage

Yellow bone marrow obtains it's color from the carotenoids inside the fat droplets in the high number of fat cells.

As we age, the red bone marrow starts to lose hematopoietic tissue which is replaced by fat, turning in yellow bone marrow.

Two-month-old roderick lives in a home with parents who both smoke cigarettes. he has a mild respiratory infection and sleeps on a soft crib mattress. roderick is at high risk for

Answers

He is at an increased risk for sudden infant death. Since he is sleeping on a mattress that might inhibit his breathing, as well as having respiratory issues that might do the same (along with parents who are smoking, which will only inhibit proper respiration further), he will need to be constantly checked to make sure he is sleeping properly.

If a plant does not receive enough sunlight, which event will happen first?
A. An increase in the production of ATP
B. Decrease in the rate of the Calvin cycle
C. A decrease in the production of ATP
D. An increase in the rate of the Calvin cycle

Answers

Answer: The correct answer is-

C. A decrease in the production of ATP.

Photosynthesis is a process of formation of food by green plants and algae using CO2 and water in the presence of sunlight. It is primarily divided into two phases that is -

1) light dependent phase ( Hill's reaction) and 2) light independent phase ( calvin cycle).

Light dependent phase is the first phase in which chlorophyll first absorbs energy from sunlight and convert it into chemical energy in the form of ATP and NADPH.

ATP and NADPH is further utilized in the calvin cycle ( light independent phase, which is the next phase of photosynthesis) in order to synthesize food ( glucose, which is a carbohydrate).

If a plant does not receive enough sunlight, there will be decrease in the production of ATP  because it is associated with the first phase of photosynthesis that is the light dependent phase.

Thus, option C) is the right answer.

Answer:

c

Explanation:

your welcome ;)

The human body can absorb some of the _____ that is synthesized by intestinal bacteria.

Answers

The answer to this question would be: vitamin

Some bacteria can produce vitamin K2 in the intestine. Other bacteria also able to change vitamin K1 into vitamin K2. But the amount produced is not much, so human still need to fulfill it from the diet. Vitamin K has a role in calcium regulation and in blood clotting pathway.

Which is the producer? Grass? Grasshopper? Mouse? Fox?

Answers

grass because without it none of those species would be living 

The producer are grass because without it none of those species would be living.

What is an ecosystem?

A single ecosystem which contains all the food chains is called a food web.

In a food web each living thing present in a food web is a part of multiple food chains.

Hence, food webs tend to represent the overlapping of food chains in that ecosystem.

Thus, the producer are grass.

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Identify the word that best describes the word in parentheses.


The lawyers advised(the client) to stay silent while in court.

A. Direct object
B. Indirect object
C. Predicate nominative
D. Predicate adjective

Answers

The correct answer is B. indirect object.
When there are two objects in a sentence, an indirect and a direct one, the first one will usually be the indirect object, followed by the direct object. In this sentence, you can say that the direct object is the infinitive phrase 'to stay silent while in court,' which means that 'the client' is the indirect object.

What's the scientific name for mendarine?

Answers

I would think it would be Citrus Reticulata.

A nurse is explaining the use of acyclovir therapy to a 72-year-old man. nephrotoxicity is discussed as a major adverse effect in older patients. to minimize the risk of the patient developing this adverse effect, the nurse will advise him to

Answers

To limit the hazard of creating nephrotoxicity, the patient should remain all around hydrated by drinking no less than eight 8-oz glasses of water day by day. Eating light dinners or taking the medication on an unfilled stomach would not diminish the hazard of creating nephrotoxicity. A medical attendant ought to never change the medication measurement without counseling the prescriber.

(a). the reaction, to produce soap can be completed by cooking animal fat with a very strong solution of

Answers

The reaction to produce soap can be completed by cooking animal fat with a very strong solution of SODIUM HYDROXIDE.
This process is called saponification. Chemically, animal fat and strong solution of sodium hydroxide or potassium hydroxide mixed together to produce soap and glycerol.

A nurse completes an afternoon assessment of a client who is a nurse and who is visiting the area on vacation. the client states that the nurse must be having a busy shift and asks about the maximum number of clients that the nurse is allowed to care for. what is the nurse's best response?

Answers

The nurses best response would be "Some jurisdictions have staffing laws which allows for nurses to be involved in staffing ratios".

Final answer:

The nurse's best response to a question about patient workload limits is that it depends on patient acuity and facility policy, but should always allow for safe and effective patient care. Nurses often collaborate to manage workloads, especially in the face of challenging scenarios like staff shortages. Maintaining professional boundaries and being personable and honest are essential for effective nurse-patient relationships.

Explanation:

When a client inquires about the maximum number of clients a nurse can care for, the nurse's best response would be to explain that the number can vary based on the acuity of patients and the specific policies of the healthcare facility. However, the overarching principle is that the nurse should only take on a workload that allows for the safe and effective care of all patients. In situations of high demand or challenging circumstances, such as dealing with difficult patients, staff shortages, especially following the COVID-19 pandemic, nurses often collaborate, sharing tasks to manage workload and maintain the quality of patient care. It is also essential for nurses to communicate with other members of the healthcare team, like social workers, to address a patient's needs, whether for alternative living arrangements or community resources.

Nurses strive to balance professional demeanor with authenticity, engaging patients in honest, casual conversations to build trust and facilitate effective care. In cases where a nurse doesn't have an answer to a patient's question, it is critical to be honest, seek the correct answer, and follow through on that commitment. Maintaining professional boundaries while being personable is key to successful nurse-patient relationships, as is providing education about disease processes and treatments within the scope of nursing practice.

If a patient had 12% of their body covered with a psoriasis rash what would be the severity

Answers

Severe

Several methods to assess the severity of psoriasis are available including Psoriasis Area and Severity Index (PASI), Physician Global Assessment (PGA) for psoriasis, and the National Psoriasis Foundation Psoriasis Score (NPF-PS). In terms of body surface area, psoriasis is generally classified as mild when it affects less than 5% of the body, moderate when it affects 5-10%, and severe for >10%. Based on PASI, which includes a rating or score for the surface area of the body affected by psoriasis, the "Area Score" would be 2.

PASI Area Score rating for Psoriasis: 
0: 0 (clear)
1: <10%
2: 10–<30%
3: 30–<50%
4: 50–<70%
5: 70–<90%
6: 90-<100%
Final answer:

If a patient has psoriasis affecting 12% of their body, this would be classified as moderate severity. The severity of psoriasis is determined based on the percentage of the body surface affected, patient comfort and mobility, and the effect on quality of life.

Explanation:

Psoriasis is a skin disease that presents as itchy or sore patches of thick, red skin with silvery scales and can affect various areas of the body. The percentage of the body that is covered by a psoriasis rash is a key indication of the disease's severity. If a patient had 12% of their body covered with a psoriasis rash, the condition would be considered moderate. Generally, psoriasis affecting up to 3% of the body is considered mild, 3-10% is moderate, and over 10% is considered severe, as it significantly impacts the patient's quality of life. In addition to the skin's appearance, the patient's comfort and mobility, and the condition's impact on the patient's daily life are also considered when determining psoriasis severity.

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Where are the cell bodies of postganglionic neurons that are very active when a person is crying located?

Answers

The answer to this question would be: B. the sphenopalatine ganglion
If you tring to imagine what happens when you cry, the answer will become clearer. When someone crying, lacrimal glands of the eye secrete tear and your nose will produce secretion too, then become congested. The postganglionic neuron that located in that place is the sphenopalatine ganglion. 

Environmental scientists are unconcerned with methods to preserve natural resources. Please select the best answer from the choices provided (true or false)

Answers

The given statement is false.

The natural resources are very important for the survival of the living organisms. All the natural resources can be exploited by the human being for their own economic or personal benefits. It is very important to conserve these resources, so, it cannot be overlooked by the environmentalists. Hence, the environmental scientists are concerned for the preservation of the natural resources.

The atmosphere is composed of...
Select one:
a. The oceans
b. The air within 500 feet of the Earth's surface
c. All the gases that surround the Earth
d. All the plants and animals that breathe the gases that surround the Earth

Answers

D is the answer hope that helps

Why does grass have more chlorophyll than pines?

Answers

In pine trees photosynthesis takes place in the pines, where the chlorophyll is concentrated. As the tree ages it loses foliage and relies more on concentrated stores of energy. For both of these reasons photosynthesis gradually declines as each tree ages. In contrast, the life-cycle of most grasses, which are either annuals or short-lived perennials, is much shorter and accordingly they have high concentrations of chlorophyll to facilitate high energy capture and rapid growth.

Which best describes why all plants need some sort of leaf or other green, leaf-like surface?

A) to perform photosynthesis
B) to stand upright
C) to be eukaryotic
D) to transport food

Answers

Answer:

A.

Explanation:

the leaves take in sunlight so they can produce food (photosynthesis)

Answer:

A: photosynthesis

Explanation:

Leaves are what perform photosynthesis

Cartilage, fat, tendons, ligaments: these are all examples of _______ tissue that ________. A) integumentary; bind the body together B) connective; bind and support the body C) skeletal; support and protect the body. D) muscular; support the body and help it move.

Answers

B) connective; bind and support the body

Answer: B). connective; bind and support the body.

Connective tissues are tissues which connect, support, binds other tissues and organs of the body. They play a role of external lining of the body cavity. They have typically few cells embedded in an amorphous matrix along with collagen and other fibers.

Cartilage is a type of fibrous connective tissue that is made up of closely packed collagen fibers. It provides flexibility to structures like nose, trachea and ears in humans.  

Fat or adipose tissue is a loose connective tissue that provides lining to the body organs and cavities hence, maintains the connectivity and prevents heat loss.

Tendon is a type of fibrous connective tissue which connects muscles to bone.

Ligament is a type of fibrous connective tissue which connects bone to bone.

All these connective tissue make a binding link between muscles, bones, organs and cavity which is necessary for providing support to the body.  


8. What was a result of the bank failures that followed the stock market crash in 1929?

Answers

A major result of the bank failures that followed the stock market crash in 1929 was that "There wasn't enough money in circulation to support a healthy economy," since people had completely lost faith in the banking system.

Answer:

8. What was a result of the bank failures that followed the stock market crash in 1929?

Explanation:

The result of the fall of the Stock Exchange in 1929 were: The Great Depression, and an economic crisis worldwide.

The cause of the Great Depression was due to the crisis that originated in the United States, from the fall of the Wall Street stock market of 1929.

But the problem was not only in New York, this moved to almost every country in the world as a domino effect.

______ immune system helps defend against disease, while _____ immune system leaves the body susceptible to a number of diseases.

Answers

Answer: Innate; Adaptive Explanation: The innate immune system is a nonspecific immune system which provides a general defense against pathogens and mostly fight against bacterial infections. The adaptive immune system are also called specific immune response where particular agents like the so-called antibodies target very specific pathogens that the body has already had contact with. But both the innate and adaptive immune systems complement each other in any reaction to a pathogen or harmful substance, and are closely connected with each other.

What types of molecules are the major structural components of the cell membrane?

Answers

The principal components of the plasma membrane are lipids (phospholipids and cholesterol), proteins, and carbohydrate groups that are attached to some of the lipids and proteins

Explain in complete sentences why lettuce or spinach in water becomes firm and crisp by cell membranes?

Answers

lettuce and spinach has a semi permeable membrane
since it's put into water, which water has a higher water potential than the leaf cells, water molecules will pass from the water to the cells through the membrane by osmosis . this leads the cells to be turgid and therefore the lettuce and spinach becomes firm

An enzyme may become inactive when:
a. body temperature rises excessively
b. the pH of body fluids becomes too acidic
c. homeostasis is being maintained
:d. all of the above
e. a and b only
f. b and c only

Answers

the correct answer is E
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