When combined in the correct ratio, hydrogen and oxygen atoms can form water as show below.
+
O
O
Hydrogen
Oxygen
Water
In this example, water is an example of which of the following?
Molecules of an element
Molecules of a compound
Atoms of a compound
A mixture
Answers
Answer:
B
Explanation:
i took the test
The correct option is (B). Molecules of a compound.
What do you mean by molecules?A molecule is a group of two or more atoms held together by attractive forces known as chemical bonds; depending on context, the term may or may not include ions which satisfy this criterion.
Moreover, molecules are made up of one or more atoms. If they contain more than one atom, the atoms can be the same (an oxygen molecule has two oxygen atoms) or different (a water molecule has two hydrogen atoms and one oxygen atom). Biological molecules, such as proteins and DNA, can be made up of many thousands of atoms.
Hence, the smallest particle of any substance which can exist independently and retain the physical and chemical properties of the substance, made up of one or different elements is a molecule.
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Related Questions
Which of the following is an accurate description of the characteristics of prokaryotic cells?
A
Contains DNA, ribosomes, and cytoplasm
B
Has a membrane-bound nucleus and ribosomes
C
Has complex cells with membrane-bound organelles
D
Contains DNA, a nucleus, and ribosomes
Answers
An accurate description of the characteristics of prokaryotic cells Contains DNA, ribosomes, and cytoplasm.
What is a prokaryotic cell simple definition?Prokaryote, also spelled procaryote, any organism that lacks a distinct nucleus and other organelles due to the absence of internal membranes.
Thus, option "A" is a correct.
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I will give you brainlest if you can answer right color blindness (due to a mutation on the x chromosome,a person can't see certain colors (positive or negative or neutral
Answers
Answer:
i would say negitive
Explanation: its a bad effect on life.
Answer:
Negative
Explanation:
The mutation that causes color blindness is negative for many reasons. First off, not being able to see color can cause you to not be able to do certain things in life. For example driving, if you can't see the correct colors to know when to stop or go, you can't safely drive. There are also some jobs where colors are important. Such as jobs that have to do with fixing colored wire. It's also bad because of how it takes away one of our senses and holds us back from seeing things and completeness. People who are colorblind can not truly experience the world like a person who can see color can.
A magazine advertises a protein shake that claims it can help you gain muscle. The fine print at the bottom of the screen says "results are not typical."
Why is this claim considered pseudoscience?
Pictures should be included in their results.
The information was delivered in a magazine.
The shake contents were not listed in the advertisement.
The results do not support the claim's conclusion
Answers
Answer:
D
Explanation:
Answer:
D - The results do not support the claim's conclusion
Explanation:
The process of diffusion occurs when
Answers
Answer:
When molecules move from areas of greater concentration to areas of lesser
concentration.
Environmental Science A.P.E.X
Why has the growing human population led to habitat fragmentation, according to the first 2 pages of this article
Answers
Mohs scale is used to determine what property of minerals?
O cleavage
O luster
O hardness
O density
Answers
Answer:
your answer is hardness
Explanation:
joe pushes a box with force of 16 Newtons to the left. Ann pushes the same box from the opposite side with a force of 8 newtons to the right. What will be the result?
Answers
Answer:the box would go straight
ii think
Explanation:
please help. answer the question below
Answers
Answer:
I think it is temperature because that is a key to help growing kelp
Answer:
its either co2 or o2
Explanation:
i cant remember specifics but i know for a fact water clarity and temperature isnt going to affect kelp. that thing wont die if u lit it on fire
The average adult needs about seven to eight hours of sleep per 24-hour day.
Please select the best answer from the choices provided
Т
F
Answers
Answer:
I think this is true
Explanation:
???
Answer:
True
Explanation:
It's essential for most people so they are able to perform their best during the day and get work done to the best of their ability.
what is the basic type of cell found in the simplest animals?
Answers
Answer:
Haploid
Explanation:
hope this helped
The canal that was dug to rechannel water to the Everglades failed to improve the wetland habitat because _____.
Answers
During the 20th century the canal water efforts to create major changes in South Florida landscape. The leeve-canal in Evergrade failed to improve the wetland habitat, a canal was constructed to drain and reclaim the wetlands.
Compare the particle model of light to the wave model of light
Answers
The wave model treats light as an electromagnetic wave. The particle model treat lights as if it were made of protons. The model could not explain the photoelectric effect, the color of hot objects, and the emission spectra.
What is the flow of the energy in the food chain?The flow of energy takes pace from producers → primary consumers→secondary consumers→ tertiary consumers. Primary consumers are the organisms that depends on producers for their energy needs. They are usually herbivores.
These organism lies at the second tropic level as the first level consists of producers. Some examples of primary consumers are rabbit, grasshopper, rats, et cetera.
Therefore, The wave model treats light as an electromagnetic wave. The particle model treat lights as if it were made of protons. The model could not explain the photoelectric effect, the color of hot objects, and the emission spectra.
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Which description properly describes a step involved in cellular respiration?
Glucose is created, then the energy gained is transferred to the energy molecule.
Carbon dioxide is combined with oxygen to make glucose.
Water is divided into carbon dioxide and glucose.
Oxygen is combined with the carbon atoms left from the glucose molecule.
Answers
Answer:
The asnwer is Glucose is created, then the energy gained is transferred to the energy molecule.
Explanation:
All of the following are true facts about enzymes EXCEPT
A)
all living cells have enzymes.
B)
Life would not be possible without enzymes.
C)
enzymes can speed chemical reactions by 100s to billions of times.
D)
there are a few types of enzymes, but they each perform many types of
reactions.
Answers
Answer: D
Explanation:
Landforms are natural features on the Earth's surface.please hurry
True
False
Answers
Answer:
True because the definition of a land form is legit a natural feature of the earth's surface.
How far does the sun’s corona extend into space?
A) 2,000 kilometers
B) 4,600 kilometers
C) 1.5 million kilometers
D) millions of kilometers
Answers
Answer:
D) millions of kilometers
Explanation:
The sun's corona extends million of kilometers into space from the sun outward.
The corona of the sun is one of the layers of the sun with blistering plasma extending into the space. It extends several million of kilometers away into the solar system. This layer has a whooping temperature of about 2-5million degree Celsius.
It is the light and energy conveyed through the corona that furnishes all the planets with radiant energy.
All of the following have specific grant opportunities based on personal traits
except
O A. disabled students
O B. female students
O C. children of politicians
O D. American Indian students
Please help!!
Answers
Answer:
Children of politicians
Explanation:
Morgan has diabetes and must carefully monitor his food intake. He is learning the calorie count of the different macromolecules-carbohydrates,
proteins, and fats-so that he can make choices to keep his blood sugar in the proper range. He notices that the word calorie is sometimes spelled
with a capital C. Which statements accurately describe calories and Calories? Select all of the answers that apply.
A. A kilocalorie is equal to 1000 Calories.
B. A Calorie is equal to 1000 calories.
C. A calorie is equal to 1000 Calories.
D. A Calorie is equal to a kilocalorie.
Answers
Answer:
B.A Calorie is equal to 1000 calories.
D.A Calorie is equal to a kilocalorie.
The correct option is A kilocalorie is equal to 1000 Calories.
What is calorie?
Calories are a unit of measurement for the energy content of food and beverages.
Our bodies store extra calories as body fat when we consume more calories through food and drink than we burn off. If this keeps happening, we might eventually gain weight.
To maintain a healthy body weight, an average male needs approximately 2,500 kcal (10,500 kJ) per day.
Therefore, The correct option is A kilocalorie is equal to 1000 Calories.
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I need help!! Art labeling- ovarian cycle
Answers
Explanation:
the first half of the picture
what are the similarities and differences between respiration and photosynthesis??
Answers
What molecules are involved directly with protein synthesis?
Answers
Answer: Within the ribosome, the rRNA molecules direct the catalytic steps of protein synthesis — the stitching together of amino acids to make a protein molecule. In fact, rRNA is sometimes called a ribozyme or catalytic RNA to reflect this function.
Explanation: hope this helps, if not then im very sorry.
When the viral DNA becomes active in the lysogenic cycle, which life cycle does it enter?
A.lytic
B.lysogenic
C.cell cycle
D.DNA replication
Answers
Answer:
A.lytic
Explanation:
Lysogenic and lytic cycles are two cycles of viral reproduction. In the lysogenic cycle, the viral DNA is incorporated into the host cell genome. Then, it can be passed on to the cell's daughter cells after it divides.
The other cycle of viral reproduction is called the lytic cycle. In the lytic cycle, the DNA is activated (transcribed). Viral particles can then assemble and replicate, and lyzing the host cell.
Where would a park ranger most likely tell hikers and campers not to build a campfire?(1 point)
in areas with cold temperatures and frozen ground
in areas with high winds and drought
in areas where there are clouds and rain is falling
in areas where there is lots of sand and little vegetation
Scientists can help determine areas likely to have wildfires by using satellites to figure out much humidity is in the air. What does humidity measure?(1 point)
the types of clouds found in the air
the amount of water vapor in the air
the temperature of the air
the speed of wind caused by the air
A group of campers want to ensure they have a safe campfire, reducing the chances for it to spread into a wildfire.
What should they do to minimize the risk of the campfire causing a wildfire?
(1 point)
keep buckets of sand nearby in case the fire spreads
remove any dried leaves or sticks from areas around the fire
have campers wake up to check the fire every five hours at night
have several small campfires in the same area
One way to limit the spread of wildfires is to create a defensible space. What is a defensible space?(1 point)
a fire set on purpose to clear land and remove dead vegetation
creating a path in the woods that leads out of a wildfire
clearing vegetation and other materials that could catch fire away from buildings
an area with stored water to fight wildfires
Answers
Wild fire refers to a fire that can spread speedily if not controlled.
What is temperature?Temperature refers to the degree o hotness or coldness of a body. We shall now answer the questions individually.
1) A park ranger would most likely tell hikers and campers not to build a campfire in areas with high winds and drought because of the possibility of a wild fire.
2) The humidity measures the amount of water vapor in the air.
3) In order to minimize the possibility of the spread of fire, they must remove any dried leaves or sticks from areas around the fire.
4) A defensible space is creating a path in the woods that leads out of a wildfire.
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What are some benefits of genetically engi-
neered crops?
Answers
Answer:
More nutritious food.
Tastier food.
Disease- and drought-resistant plants that require fewer environmental resources (such as water and fertilizer)
Less use of pesticides.
Increased supply of food with reduced cost and longer shelf life.
Faster growing plants and animals.
Explanation:
Please give me brainliest
Answer: Some benefits of genetically engineered crops include:
-More nutritious food
-Tastier food
-Disease- and drought-resistant plants that require fewer environmental resources (such as water and fertilizer)
-Less use of pesticides
-Increased supply of food with reduced cost and longer shelf life
-Faster growing plants and animals
-Food with more desirable traits, such as potatoes that produce less of a cancer-causing substance when fried
-Medicinal foods that could be used as vaccines or other medicines
Attractions between particles hold the particles of liquids and solids close together.
Why is the attraction that particles have for each other not enough to keep gas
particles close together?
Answers
Answer:
Kinetic energy is needed to overcome the force of attraction between particles of the same substance. In solids, particles don't have enough kinetic energy to overcome the force of attraction between them. The particles are packed closely together and cannot move around
Explanation:
Which is a description of the Paleozoic era?
A. The rise of life
B. The age of the dinosaurs
C. The hottest era
D. The era of humans
Answers
Answer:
The rise of life
Explanation:
A.P.E.X.
A description of the Paleozoic era is A. The rise of life.
What is the Paleozoic era?The Paleozoic Era was a geological era that spanned from about 541 to 252 million years ago. It is often referred to as the "Age of Invertebrates" because it was during this time that the first major diversification of animal life occurred, and most of the animal life was invertebrates.
This era also saw the emergence of fish, amphibians, reptiles, and the first land plants. The Paleozoic Era ended with the largest mass extinction in Earth's history, known as the Permian-Triassic extinction event, which wiped out about 96% of marine species and 70% of terrestrial species.
The Paleozoic Era is a geologic era that began about 541 million years ago and lasted until about 252 million years ago. During this era, there were several major events that shaped the Earth's history and led to the evolution of new life forms:
During the early part of the Paleozoic Era, there was a sudden burst of new life forms, including many of the major groups of animals that we know today. This is known as the Cambrian explosion.
Therefore, A) Paleozoic era, is the correct answer.
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I have no clue how to do this I need help!
Answers
8. Freezing
9. Melting
10. Condensation
11. Evaporation
Hope this helps!!
on number 6, what is the answer, a, b, c, or d
Answers
The following are sources of Earth's internal heat energy EXCEPT
a. Decay of radioactive isotopes
b. Primordial heat
c. pressure from overlying layers
d. Sun’s energy
Answers
The sun's energy is not a source of Earth's internal heat. So the correct option is D.
What is the earth's internal heat?
Nobody has even gotten close to directly examining the interior of the Earth. So there is disagreement among geophysicists as to how heated the Earth's core is. However, the speed at which earthquake waves, sometimes known as "seismic waves," move may reveal a lot to scientists about the composition of the Earth.
The solidity, liquidity, or partial solidity of these materials can also be determined using seismic data. Laboratory results, meanwhile, show what pressures and temperatures the materials inside the Earth should melt at.
The temperature of the Earth's core is thought to be between 5,000 and 7,000 degrees Celsius based on this information. That is far colder than the sun's inside, yet roughly as heated as the sun's surface.
Although the amount of heat created inside the Earth is immense, the amount of heat energy received from the sun is around 5,000 times stronger. The weather is influenced by the sun's heat, which ultimately leads to erosion. It is so paradoxical that although the heat of the Earth creates mountains, the energy of the sun gradually breaks them down again.
Therefore the correct option is D.
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Need answer now click on the photo
Answers
Answer:
I would go with B
Answer:
B used to store food and other minerals
Explanation: