A student is given two mineral samples that appear very similar. They both are opaque, white, and shiny. He knows that they are either calcite or quartz. To determine the identity of each mineral, the student puts a couple of drops of hydrochloric acid (HCl) on each sample. When calcite reacts with hydrochloric acid, carbon dioxide gas is produced. When HCl is placed on quartz, no changes are observed. Based on the information above, what evidence indicates that a chemical reaction occurs when HCl is placed on calcite?

Answers

Answer 1

Answer:

Carbon dioxide is a new product formed from the reaction between calcite and HCl

Explanation:

Calcite is a mineral with the chemical formula CaCO₃. Hydrochloric acid reacts with calcite to liberate carbon dioxide and form calcium chloride and water. The equation of the reaction is given below:

CaCO₃ + HCl ----> CaCl₂ + H₂O + CO₂

In a chemical reaction or change, new products are formed which are different from the original elements or compounds reacting.

Since the carbon dioxide gas, calcium chloride and water are entirely new products formed from calcite and hydrochloric acid, the reaction between calcite and HCl is a chemical reaction.

Answer 2

Answer:A

Explanation:

Carbon dioxide is a new substance created from the calcite and hydrochloric acid


Related Questions

PLEASE HELP NOW!! ASAP!!

This source of stress is caused by changes in your life.

A. personal behavior

B. life situations

C. thinking stressors

D. environment stressors

Answers

Answer:

b

Explanation:

The source of stress which is caused by the changes in the life is the life situations. Thus, the correct option is B.

What is Stress?

Stress can be defined as the state of worry or mental tension which is caused by a difficult situation. Stress is a natural human response which prompts us to address the challenges and threats in our lives. Everyone experiences the stress to some or other degree in life.

Stress is a feeling of emotional or physical tension. Stress can come from any event in life or thought which makes a person feel frustrated, angry, or nervous. Stress is the body's reaction to a challenge or demand. In short bursts, the stress can be positive, such as when it helps a person to avoid the danger or meet a deadline.

Therefore, the correct option is B.

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Which is example of a neutral mutation

Answers

Answer:

Examples include silent point mutations. They are neutral because they do not change the amino acids in the proteins they encode.

Mark Me As Brainliest If u Found this answer helpful....

Examples include silent point mutations. They are neutral because they do not change the amino acids in the proteins they encode.

does a panda have a Endocrine system

Answers

Answer:

Yes

Explanation:

trust me i love pandas

Which is a source of water pollution?
A.
the noise from equipment on a construction site
B.
product packaging that remains in a landfill
C.
sediment from land erosion that clogs waterways

Answers

Answer:

C

Explanation:

Thw waterways would be clogged, which causes water pollution.

The source of water pollution is:

C. sediment from land erosion that clogs waterways

Causes of water pollution:

Sediments are the most notable kind of water defilement. Residue is pinches of soil or another solid residues that are washed or blown from land into the water.

Dregs in suspension can fundamentally affect the water nature of a stream since silt declines water, which lessens perceivability.

Thus, option C is correct.

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What system is responsible for bringing in starch and protein?

Answers

Pancreatic Amylase should be the correct answer

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The alarm stage of Hans Selye's general adaptation syndrome is very similar to
A. the flight-or-fight response
B. constructive coping
C. catharsis
D. appraisal

Answers

Answer:

the flight or fight response

Explanation:

got it correct on edg, 100%

The alarm stage of Hans Selye's general adaptation syndrome is very similar to the flight-or-fight response, hence option A is correct.

What is the flight-or-fight response?

The fight or flight response is a physiological response that occurs automatically in response to a stressful or frightful experience.

Threat perception engages the sympathetic nervous system, causing an acute stress reaction that primes the body for either fighting or running away.

Because your blood flow is being changed, you can feel chilled or notice that your hands and feet are damp and cold.

As your body's blood and hormones flow, your face could also seem flushed. The ability to feel sharp pain is impaired.

Therefore,  the flight-or-fight response and alarm stage of Hans Selye's general adaptation syndrome is similar.

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The nucleus is considered the "brain" of a cell. It directs reproduction and controls activity in the cell.
0 True
O False

Answers

Answer:

true

Explanation:

the nucleus is the control center of a cell which is also called the brain of a cell

The nucleus is the brain of the cell so it is true

Choose one of the following natural disasters. You may choose one that might occur in your community. Then, using the three parts of an emergency preparedness plan, describe what your family would do during that natural disaster. Wildfire Earthquake Blizzard Hurricane

Answers

Answer:

wildfire: 1.if you cant put out the fire try and barracade the fire to try and stop  it from spreading 2. step away from the fire about 5 feet away 3. call the fireman and tell your location

Explanation:

i have to get rid of my dog i was wondory if someone is instrasted
YORKIE MIXED WITH A CHIWAWA
YEAR OLD

Answers

Answer:

Explanation:

I have a chorkie too!!! Hes thought to be a pure bread chihuahua but we think there's a little yorkshire in him:) his name is bear!!

I'm interested, as long as he/she free

Which one of the following people has the most direct and most cost-effective opportunity to avoid developing disease or injury?

Answers

Answer:

The correct answer would be B. Juan

Juan is depressed because his father has passed away. This is an understandable reaction as he is grieving. This isn't something that is a daily or normal circumstance in his life though and he does have the opportunity and ability to recover and heal emotionally especially with the right support.

Cathy is addicted to cigarettes which already puts her at high risk of developing health problems. All her friends smoke which adds on additional peer pressure and negative environment making it difficult for her to quit. Smoking is also an expensive habit.

Meryl has diabetes which she seems to have inherited. She is at a high risk of developing complications resulting from her diabetes and medical treatment for her diabetes alone is expensive.

Paul is being exposed on a daily basis to polluted air. The only thing he could do about that would be to move but that is expensive. He can't do anything about the coal plant or the pollution and he is at high risk of developing respiratory problems.  

Explanation:

not my answer

Sorry im just tryna get points my bad

The UV rays of the sun reach the skin in two different forms? what are they? / (this is cosmetology)

Answers

Two types of UV rays reach the earth, UVA and UVB (the sun also emits UVC rays, but these are absorbed by the earth's atmosphere). UVA rays are the rays that cause tanning as well as wrinkles and other signs of premature aging, and UVB rays cause sunburns and skin cancer.

Question 12 pts
Half of your plate should be made up of:

Group of answer choices

Protein and Dairy

Fruits and Vegetables

Grains (Carbohydrates) and Dairy

Protein and Vegetables

Flag this Question
Question 22 pts
How many servings of fruits should you consume daily?

Group of answer choices

2-3

2-4

6-11

3-5

Flag this Question
Question 32 pts
Which of the 5 food groups does peanut butter belong to?

Group of answer choices

Dairy

Carbohydrates

Protein

Fats

Flag this Question
Question 42 pts
In terms of servings, which of the 5 food groups should your diet consist MOSTLY of?

Group of answer choices

Protein

Carbohydrates

Fats

Fruits

Flag this Question
Question 52 pts
As a general rule, your diet should consist LESS of:

Group of answer choices

Protein, Fat, and Carbohydrates

Saturated fat, added sugar, and sodium

Fiber, Calcium, and Fat

Iron, Calcium, and Zinc

Flag this Question
Question 62 pts
As a general rule, 100 calories per serving of an indivdual packaged food is considered low.

Group of answer choices

True

False

Flag this Question
Question 72 pts
As a general rule, the nutrients you want to get MORE of are (choose all that apply):

Group of answer choices

Iron

Sodium

Fiber

Calcium

Vitamin D

Flag this Question
Question 82 pts
Use the Nutrition Label below to answer the next 3 questions.

What is the serving size of this product?



Nutrition Label
Minimize File Preview


Group of answer choices

8 servings

5 1/3 cups

230 Calories

2/3 cup

Flag this Question
Question 92 pts
How many Calories are in the ENTIRE container? (Use the Nutrition Label above)

Group of answer choices

I can't calculate it with the information given

1840

230

920

Flag this Question
Question 102 pts
In terms of % of Daily Value, this product is considered to be (Use the Nutrition Label above):

Group of answer choices

High in calcium and iron, but low in potassium

Low in total fat, potassium, and vitamin D

Low in saturated fat, calcium, and cholesterol

High in calcium, iron, and potassium

Flag this Question
Question 112 pts
Calcium is considered to be the "building blocks" of our body.

Group of answer choices

True

False

Flag this Question
Question 123 pts
Consuming too much fat in your diet can cause conditions such as heart disease, high blood pressure, and high cholesterol. However, consuming the right type of fats can be beneficial to your body. Choose the benefits of consuming certain fats:

Group of answer choices

certain fats aid in the production of hormones

certain fats helps absorp other nutrients

certain fats play an important roll in cell building

certain fats improve muscle movement

Flag this Question
Question 132 pts
This mineral helps to increase one strength, improve transmission of nerve signals, and help muscle contraction and relaxation.

Group of answer choices

Zinc

Calcium

Iron

Potassium

Flag this Question
Question 142 pts
This mineral aids in the production of hormones and the creation of red blood cells.

Group of answer choices

Zinc

Iron

Potassium

Calcium

Flag this Question
Question 152 pts
This mineral increases your resistance to diseases, increases your immune system, and increases your metabolism.

Group of answer choices

Zinc

Calcium

Potassium

Iron

Flag this Question
Question 162 pts
Vitamins A, B6, C, and D are the MOST essential vitamins for your body?

Group of answer choices

True

False

Flag this Question
Question 171 pts
What is the MAIN purpose/function of vitamins?

Group of answer choices

fight disease

create red blood cells

increase bone strength

increase metabolism

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Question 182 pts
What is the ONE nutrient humans can absolutely not live without?

Group of answer choices

Fat

Carbohydrates

Protein

Water

Flag this Question
Question 192 pts
Which nutrient serves as food for the brain and central nervous system?

Group of answer choices

Vitamins

Minerals

Carbohydrates

Protein

Flag this Question
Question 202 pts
Which nutrient makes up approximately 16% of our body weight and is made up of different amino acids?

Group of answer choices

Fat

Vitamins

Protein

Carbohydrates

Answers

Answer:

Fruits and vegetables

Explanation:

Because you have to stay heath to have a good hygene

Which of the following smart weight loss strategies about snacking is FALSE?
A.
Avoid snacking just because you are bored.
B.
Snack on low-calories foods like vegetables.
C.
When you snack, dish out one portion instead of eating right out of the box or bag.
D.
You should never snack if you want to lose weight.

Answers

B.
Snack on low colories foods like vegetables

Answer:

A

Explanation:

because its good for you

What is the name of the kind of stretch that involves stretching as far as you can
and then holding for 10-30 seconds

Answers

Answer:

Ballistic

Explanation:

How are your relationships with family members similar to your relationships with friends and how are they different?

Answers

I don’t really have a connecting with a lot of them habit I do talk to them

The__________is a thick band of axon fibers that connects the two hemispheres of the brain

cerebrum
cerebral cortex
longitudinal fissure
corpus callosum

Answers

Answer:

D

Explanation:

Answer:

D) corpus callosum

Explanation:

edge 2023

Alcohol is a ___ to the central nervous system

Answers

Answer:

bad effect to the central nervous system

Explanation:

Which option identifies why Keenan has NOT lost any weight in the following scenario?
Keenan changed his diet in order to lose weight. He is following the dietary guidelines from 2008 that he
found on the Internet, and after three months he has not lost any weight.
A.The guidelines are not universal.
B.The guidelines have changed once since 2006.
C.The guidelines are reviewed and changed every year.
D.The guidelines are not meant for weight loss,

Answers

Answer:

D. The guidelines are not meant for weight loss

Explanation:

The guidelines are just set in place to help maintain a healthy lifestyle, however, it is possible you could lose weight using the guidelines.

Hope this helps!

Answer:

Explanation:

The guidelines have changed since 2006

The graph shows the diabetes and obesity trends in the United States.

A graph titled Diabetes and Obesity Growth Trend in the U.S shows years on the horizontal axis and percentage on the vertical axis. The graph shows an upward trend for both percentage of the population with obesity and percentage of the population with diabetes.

Which statement best describes the diabetes and obesity trends in the United States?

Both are increasing.
Both are decreasing.
Diabetes is increasing, while obesity is decreasing.
Obesity is increasing, while diabetes is decreasing

Answers

Answer:

both are increasing forsure

Answer:

a

Explanation:

because i said so brudda

How can a person demonstrate
empathy toward others?

Answers

Answer:

Hi! itz Zack! ^^

Explanation:

The first way involves the appearance of a feeling of stress in response to the fear or anxiety of another person. The second way to demonstrate affective empathy is to mirror the other person’s emotion back to them. From a less technical standpoint, empathy is simply the ability to understand another person’s point of view.

hope this helps!!

If you want to make healthy choices, you need to A. learn about your body B. discuss your health with a doctor C. have a medical examination​

Answers

Answer:

I am 99% sure the answer is A-learn about your body

Explanation:

I hope this helps, can i plz have brainliest

How dose someone acquire bipolar disorder/develop it ... what parts of the body are affected.

Answers

Answer:

the parts of body is so big big big agbibigbig

how should I feel about my dad having a massive heart attack and being rushed off to the hospital?

Answers

Answer:

Have hope

Explanation:

If you're a firm believer in a god, you'll know that everything happens for a reason

Helping others with their problems shows your family that you care.
Please select the best answer from the choices provided.
-true
or
-false

Answers

True






I hope my answer helped you!

What is the difference between prescription medicines, nonprescription medicines, and illegal substances. What is their abuse?

Answers

Answer:

Prescription drugs are prescribed by a doctor and intended to be used by a specific person that the prescription is for, while over-the-counter drugs are not. The FDA regulates the OTC drugs through monographs. Monographs cover acceptable ingredients, doses, formulations, and labeling.

100% on edge:)

Explanation:

Answer:

Prescription drugs are prescribed by a doctor and intended to be used by a specific person that the prescription is for, while over-the-counter drugs are not. The FDA regulates the OTC drugs through monographs. Monographs cover acceptable ingredients, doses, formulations, and labeling.

Explanation:

Why do you think some methods for taking a patient’s temperature are more accurate than others?

Answers

Answer:

because it gives you the best results

Explanation:

How does this level of organization relate to cells? To organ systems?

Answers

Answer:

The heart —belonging to the organ level of organization— is composed of cardiac muscle cells forming the myocardium, and belongs to the cardiovascular system.

Explanation:

The cellular level of organization of the heart is complex, since it is a group of specialized cells that constitute the main organ of the cardiovascular system.

The heart is predominantly made up of the myocardium, formed by muscle cells similar to those of the striated muscle, but with a different distribution. Other cells belonging to the heart are the endothelial cells, which cover its interior, and the fibrous and serous cells that constitute the pericardium.

Structurally, the heart is part of the cardiovascular system, whose function is to carry blood throughout the body. Functionally, this organ is related to all the tissues, organs and systems of the body.

The single factor that predicts whether or not a person will develop addiction is:
1: Early drug use
2: Genetics
3: Home environment
4: None of the above

Answers

1 early drug use causes addiction

The single factor that predicts whether or not a person will develop addiction is "None of the above".

Addiction refers to a situation whereby someone cannot stop using a particular substance. It's a chronic disease that is difficult to control, and has a harmful consequence.

There's no single factor that can be used in predicting if an individual will become addicted to drugs or not. There are certain factors which combined can influence the risk of addiction such environmental, developmental and genetic factors.

It should be noted that the more risk factors that an individual has, the more the chance that engaging in harmful substance will lead to addiction.

Therefore, there is no single factor that predicts whether or not a person will develop addiction.

The correct option is "None of the above".

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Characteristics in common with both smooth and cardiac muscles

Answers

Explanation:

what's the question I dunno it

Answer:

Cardiac and skeletal muscle are both striated in appearance, while smooth muscle is not. Both cardiac and smooth muscle are involuntary while skeletal muscle is voluntary. ... Cardiac muscle is also an involuntary muscle but is more akin in structure to skeletal muscle, and is found only in the heart.

Osteoporosis is evidence that this bone cell has been at work.
a. osteocyte
b. osteoblast
c. osteoclast

Answers

I think answer should be c. Please give me brainlest let me know if correct or not thanks I appreciate it bye
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For the function f(x)=ab^x, what are the possible values for b if the function is an exponential growth function? Please select two answers. A) 1-0.00001B) 0.9C) square root of 2D) 1/2E) 1.1 Which line from the passage suggests that povertycould lead to unrest?"It is true that wealth has been greatly increased.""The association of poverty with progress is thegreat enigma of our times."There is ... a widespread feeling of unrest andbrooding revolution.It must be a leap upward, which will open the wayto advances yet undreamed of. Given A(2,14), B(2,3), C(4,2) and D(14,2) what about AB? How do you identify a medical emergency? A. Look for an injuryB. Check if the EAP has been activatedC. Look if there are too many people around D. If someone isnt wearing a mask or protective gear What were mother and father and in disagreement over ? How did the Jamestown colonists treat the Native Americans Which number line shows 1/3 and its opposite What ia Marginal benefit IF f(x) = -3x 2; FIND f(3) Please tell me the time in numbers??? Good hand writing is essential to get good marks. (make it Negative) Who was the first to rule in the new age kingdom? A. Hatshepsut B. Ramses ll C. Nefertiti D. Aphrodite What is the moral of "The Wise Fool?It is unwise to cut a babys hair. People should mind their own business.Wisdom can be found in unexpected places.Once something is finished, it cannot be undone. the multiplicative inverse of 7-2 is How does the First Amendment protect religious freedom for American citizens?Choose exactly two answers that are correct.It lets people practice their faith in their own way.It allows the government to tax religious institutions.It prevents the government from establishing a national religion.It encourages all Americans to go to church on Sunday. Why did the settlers in the Runaway Scrape head toward Louisiana? When I use "ET VOUS" is used for...1. Formal situations 2. Informal situations 3. Friends and family4. None of the above I will give you branliey A rectangular tank has a length of 12 feet, width of 8 feet, and height of 5 feet. Frankie filled the tank with water at a rate of 4 cubic feet per minute. At this rate, how long will it take Frankie to completely fill the tank without overflowing it? How will you write 4x + 23y into a statement