When a strip of zinc metal is added to a test tube of hydrochloric acid, the liquid forms bubbles, and the test tube feels hot. The bubbles are a result of the formation of hydrogen gas. What does the hot test tube indicate?
A.
Hydrogen gas absorbs heat.
B.
The reaction releases heat.
C.
A chemical change has been reversed.
D.
The reaction absorbs heat.

Answers

Answer 1
I’ll jhxhfbfkdksbsvskzosbsvdjxosbdvdhfofbf

Related Questions

2. What social issues affected the problem or its solution in each of the stories?

for conservation in each stories

"Using forests wisely"

"Community conservation"

Answers

Answer:

Social issues such as poverty and to fulfill basic needs etc.

Explanation:

Social issues such as poverty, lack of awareness and to fulfill basic needs etc affected the problem or its solution in the stories i.e. "Using forests wisely"  and "Community conservation" because these issues forced people to cut the forest and use the lands unwisely to fulfill their basic needs and betters their social status in the society. Due to poverty, people cut the trees in the forest and sold them to earn money in order to buy food and other necessary items for their family. If these social issues are solved, there is no need for cutting of trees and land use.

Adaptation to terrestrial life involved major evolutionary changes. The change from gill breathing to lung breathing was accompanied by important changes in the Adaptation to terrestrial life involved major evolutionary changes. The change from gill breathing to lung breathing was accompanied by important changes in the cardiovascular system. association of blood and interstitial fluid. reproductive system. manufacture of blood cells.

Answers

Answer:

is this a story or the question?

Explanation:

What is the question?

Which gas is most prevalent in the Earth's atmosphere?

Nitrogen

Oxygen

Argon

Carbon dioxide

Answers

Answer:

Nitrogen

Explanation:

The atmosphere contains many gases. The most abundant gas in the atmosphere is nitrogen and oxygen second. Argon is a insert gas which makes it the third most abundant gas in the atmosphere.

It is possible to quickly determine the _____ of one mineral relative to that of another mineral with the process of ____

Answers

Density & heft. I hope this is correct

What is the relationship between genetic mutations and DNA?

Answers

Answer:

Change in DNA sequence leads to genetic mutation.

Explanation:

A mutation is a change in DNA. The organisms DNA can affect the way it looks in the future and can cause changes in the aspects of that organisms life. Mutation is quite crucial to evolution and is the raw material of genetic variation. The way the DNA functions can affect the mutation.

Select the correct answer.
A construction company wants to trap pollutants in runoff at
its sites. What should the company do?
© A. Practice conservation tillage at the sites.
B.
Release beneficial insects, such as spiders and ladybugs, at the sites.
C.
Plant grass and lay straw at the sites.
D.
Plant trees at the sites.

Answers

Answer:

A

Explanation:

I believe the answer is A because conservation tillage reduces erosion & runoff but I'm not 100% sure.

06.06 Virtual Garden Lab Report
Instructions: Select the Virtual Garden Lab from the lesson assessment page. The lab will open in a new window. Select begin and follow the instructions to complete the lab report. As you complete each slide of the Virtual Garden Lab Activity, please fill in this lab report with the appropriate information and data.

Title:


Objective(s):


Hypotheses: Make predictions of what you think will result in the healthiest garden. Be sure to give a reason for your hypothesis.


Variables:

Materials:

Virtual Garden Simulation from lesson
Virtual Garden Lap Report Form

Procedures:
The procedures are included in Virtual Garden Lab Activity. You do not need to include them here.

Data and Observations:

Virtual Garden Observation Data Chart A [Hint: observations should be detailed]

Row Day 1 Day 2 Day 3 Day 4 Day 5 Day 6 Day 7 Day 8 Day 9
1
2
3
Virtual Garden Observation Data Chart B [Hint: observations should be detailed]

Row

9 days

2 weeks

4 weeks

6 weeks

Plant Height

1









2









3











Virtual Garden Observation Data Chart C [Hint: observations should be detailed]

Row

9 days

2 weeks

4 weeks

6 weeks

Plant Height

1









2









3










Virtual Garden Observation Data Chart D [Hint: observations should be detailed]

Row

9 days

2 weeks

4 weeks

6 weeks

Plant Height

1










2









3









Analysis Questions:

Analysis questions need to be answered using complete sentences. Some questions may require a longer explanation in paragraph form.

Which row was the best placement for the pansies, hydrangeas, and sunflowers? Explain your answer.
Describe the process of germination and plant growth you observed in the lab activity for a monocot plant. (Hint: Use data chart A to help with your description.)
Describe the process of germination and plant growth you observed in the lab activity for a dicot plant.
Which of your plants was a dicot? Which was a monocot? How could you tell? (Hint: Refer to the lesson for differences in monocots and dicots.)
What was the correct water level for germination? Why did this water level work best for all the plants in the garden?
What water level did you select for plant growth during your first attempt? Describe the observations of your plants at this water level. Based on your data, was the level you picked the best choice for optimum growth?
What pH level did you select for plant growth? Describe the observations of your plants at this pH level. Based on your data, was the level you picked the best choice for optimum growth?
Describe your observations of plant growth in zero gravity. Can you provide possible reasons for the growth patterns? (Hint: Refer to tropisms in the lesson for ideas.)
Conclusion Questions:

Conclusion questions need to be answered using complete sentences. Some questions may require a longer explanation in paragraph form.

In a real garden, which hormones would stimulate seed germination and plant growth? How do these feedback mechanisms maintain homeostasis in plants?
How does the accuracy and precision of the data collected in the virtual lab compare to the data collection that would occur in an investigation of a real garden?
What factors could not be measured or accounted for in the virtual lab that would happen in the internal and external environment of a real garden?
If you completed the same investigation in a real garden, how would you refine the investigation to account for the limitations of the virtual garden?
Based on your experiences with the Virtual Garden, how would you set up a real backyard garden? Describe what you learned about plant behavior in this lab that will help you cultivate a healthy garden.

Answers

It’s 8 days and 9 weeks because it was to small to see

Compared with mitosis, the process of melosis results in daughter cells that are?

Answers

Answer:

Cells divide and reproduce in two ways, mitosis, and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.

Explanation:

How might the loss of sea ice affect people, animals, or ecosystems?

Answers

Answer:

The Global Impacts of Arctic Sea Ice Loss. Some of the most important climate news this winter has been around the alarming lack of sea ice in the Arctic, which has been in decline due to the steady rise in Earth’s average air and ocean temperatures. While suffering polar bears are a poignant symbol of climate change, the effects of disappearing ice extend far beyond the Arctic circle and its inhabitants.

Explanation:

I did the same thing

in 1400, the most advanced naval fleet could be found in

A. China
B. Egypt
C. ireland
D. polynesia​

Answers

It would be A.) China.

Help please!! I'll name you brainliest!!

Answers

Answer:

I believe it will be decreased snow cover

What are the eight different elements that cereal contains​

Answers

earth, wind ,fire ,and air

Clownfish, sea anemone, coral, sea urchins, sponges, and parrot fish are just a few examples of the large variety of organisms that can be found in a coral reef. The coral reef and its inhabitants are suffering due to several factors such as pollution, coastal development, sedimentation and destructive fishing practices. What would be the most likely result if some of the species in the coral reef are destroyed? Other organisms would move into the coral reef area The coral reef would be allowed to flourish without so many fish and plants living in and around it. The coral reef would begin to deteriorate without the variety of fish and plants necessary to maintain balance. The waters surrounding the coral reef will become cool with the decreasing number of organisms living there

Answers

Answer:

The coral reef would begin to deteriorate without the variety of fish and plants necessary to maintain balance

Explanation:

please answer this within the hour

Answers

I can’t see the picture you posted :(((((

PLS HELP ME AND I WILL MARK BRAINIEST

Answers

Answer:

1.lease

2.cross contamination

3.cooked

4.security deposit

5.roomate

Answer:

A is lease B is cross contamination C is Cooked D is secured deposit E is roommate

Explanation:

Mendel's F, generation of pea plants were heterozygous. What does this mean? A: All the offspring plants would have the recessive trait. B: Half of the offsprings would have the dominant trait, while the other half would have the recessive trait. C: The offspring had two identical alleles for the same gene. D: The plants had two different alleles for the same trait.

Answers

Answer:

Im pretty sure its D:The plants had two different alleles for the same trait.

Explanation:

If the offspring's is heterozygous it would mean thegenotype would be Pp, which means they would have one dominant allele and one recessive allele.

What is the area of a plant cell

Answers

Answer: Plant cells can be larger than animal cells. The normal range for an animal cell varies from 10 to 30 micrometers while that for a plant cell stretches from 10 to 100 micrometers.

The large central vacuole is surrounded by its own membrane and contains water and dissolved substances. The cell wall is located outside the cell membrane.

What are 5 examples of biotic factors? No answer choices please help!!!

Answers

Biotic factors include animals, plants, fungi, bacteria, and protists. Some examples of abiotic factors are water, soil, air, sunlight, temperature, and minerals.

Answer:

deer, rabbits, fish, elephant, bird

Explanation:

What is the sex of this organism?

Answers

Answer:

Female

Explanation:

Answer:

Female

Explanation:

what is computer and what does it mean

Answers

Answer:

computer is an electronic device that takes in raw that ,process it and give meaning ful information

What do scientists think collapsed that started the process of the formation of the planets?

A- A comet
B-a planetesimal
C- an interstellar cloud
D- an asteroid

Answers

Answer:

d asteriod

big bang theory was formed by two massive asteriod

How does population growth Affect mineral resource extraction

a. Higher population lower mineral extraction
b. Does not effect extractions
c. Higher population more mineral extration
d. Lower population more mineral extraction

Answers

Answer:

b.

Explanation:

does not effect extractions

BRAINIEST ANSWER:)
It’s either TRUE or FALSE

Answers

True this is a true answer

Which two sentences best explain what happens to energy in this
ecosystem?
A. Energy is lost as it flows through the links in a food chain.
B. Energy is gained as it flows down the pyramid.
C. Each organism gains energy from its surroundings.
D. Each organism loses energy as body heat.

Answers

Answer:

A. Energy is lost as it flows through the links in a food chain.

D. Each organism loses energy as body heat.

True or false: Photosynthesis is an important part of the carbon cycle.
А
True
B
False

Answers

Photosynthesis is an important part of the carbon cycle - True.

may this helps you

bye

It is true that photosynthesis is an important part of the carbon cycle. The correct option is A.

What is the role of photosynthesis in carbon cycle?

Photosynthesis is the process by which plants convert sunlight, water, and carbon dioxide into oxygen and sugar energy.

Plants absorb carbon dioxide and sunlight during photosynthesis to produce fuel glucose and other sugars for plant structure construction. The fast (biological) carbon cycle is built on this process.

The carbon cycle includes cellular respiration and photosynthesis. The carbon cycle refers to the processes by which carbon is recycled in the biosphere.

While on the other hand cellular respiration emits carbon dioxide into the environment, photosynthesis absorbs carbon dioxide.

Carbon dioxide is removed from the atmosphere by photosynthesis and replaced by cellular respiration. Photosynthesis takes oxygen from the atmosphere and cellular respiration replenishes it.

Thus, the correct option is A.

For more details regarding carbon cycle, visit:

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What leads to the likelihood that that there are successful traits in an ecosystem that will allow organisms to survive and reproduce in changing conditions?
A. less biodiversity
B.smaller food webs
C.greater biodiversity
D.specialist consumers​

Answers

Answer: I think it’s C

Explanation: more biodiversity, the more reproduction and success.

Greater biodiversity leads to the likelihood that there are successful traits in an ecosystem. Therefore, option (C) is correct.

What is biodiversity?

Biodiversity refers to the variety of species and the genetic diversity within those species that exist within an ecosystem. When an ecosystem has high levels of biodiversity, there is a greater chance that at least some species will have the traits necessary to survive and reproduce in changing conditions.

Organisms with successful traits in one set of conditions may not necessarily have those same traits in different conditions. Therefore, a diverse range of species with various sets of traits increases the likelihood that some of those traits will be beneficial in different conditions.

Learn more about biodiversity, here:

https://brainly.com/question/13073382

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How would the finch populations on these islands change over time?

Answers

The population of the drier island would continue to decrease until only the large beaked finches were the only ones left. The island with plentiful rainfall would have a growing population and most of them would have smaller to medium sized beaks.

The finch population's beaks will be modified; on dry islands, they will have larger beaks, while on rainy islands, they will prefer medium or short beaks.

What is natural selection?

Natural selection is an evolutionary mechanism. Organisms that are better adapted to their surroundings are more likely to survive and pass on the genes that helped them thrive. Species change and diverge as a result of this process.

Because of the differences in environmental conditions, the finch populations on the dry and wet islands are likely to change differently over time.

Finches with traits that allow them to efficiently extract nutrients from dry seeds would have an advantage on the dry island, where food and water resources are limited.

Natural selection would favour these traits over time, increasing the frequency of these advantageous traits within the dry island finch population.

Thus, this way, the finch populations on these islands change over time.

For more details regarding natural selection, visit:

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Your question seems incomplete, the probable complete question is:

Most scientists think that a small group of finches colonized the Galápagos Islands thousands of years ago. They would've been the only seed eating birds on the islands. Suppose one island was very dry and another had plentiful rainfall.

A. How would the finch populations on these islands change over time?

Drag Each Tile To The Correct Location On The Table. Classify the mutations as somatic or inherited

Answers

Answer: inherited: -exists in all the cells of the body

-transferred via egg and sperm cells

Somatic- skin cancer by uv

-Not passed on to offspring

-found in a specific cell

Type

Explanation: Plato

Grass it is a _______.

Answers

Grass it is a plant? I dont know why there is a it is

HELP THIS IS DUE IN 30 minutes (No links or I'll Report)
In a healthy person, systolic pressure is always higher than diastolic pressure because systolic pressure measures
A) blood pressure in the artery after the left ventricle contracts.
B) the force with which blood returns to the heart and lungs.
C) the maximum rate at which the heart pumps blood.
D) the pressure in the artery after the left ventricle relaxes.

Answers

DoWn LoAd Ur AnSwEr HeRe: https://youtu.be/dQw4w9WgXcQ

Jk your actually answer is B

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