what is meaning of H2O and compound​

Answers

Answer 1

Answer:

A chemical compound is a chemical substance consisting of two or more different chemically bonded chemical elements, with a fixed ratio determining the composition. For example, water (H2O) is a compound consisting of two hydrogen atoms bonded to an oxygen atom.

Explanation:

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Related Questions

what effect does vitamins have to your body

Answers

Answer:

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What is a macromolecule?

Answers

Answer:

is a very large molecule such as protein. They are composed of thousands covalently bonded atoms
A molecule containing a very large amount of atoms such as protein,nuclei,acid,or synthetic,polynomial is called

Which information did Millikan contribute to the understanding of electrons?(1 point)

He determined that electrons do not move in specific orbits around the nucleus.
He determined that electrons do not move in specific orbits around the nucleus.
He determined that electrons absorb or release specific amounts of energy.
He determined that electrons absorb or release specific amounts of energy.
He determined the ratio of mass to charge for electrons.
He determined the ratio of mass to charge for electrons.
He determined the amount of charge on an electron.

Answers

Answer:

Explanation:

He determined the amount of charge on an electron

Explanation:

He determined the amount of charge on an electron

The information which Millikan contributed to the understanding of electrons is: D. He determined the amount of charge on an electron.

An atom can be defined as the smallest unit which comprises the matter that forms all chemical elements. Thus, atoms are typically the fundamental building blocks of matter and as such determines (defines) the structure of a chemical element.

Generally, atoms are typically made up of three (3) distinct particles and these are;

Protons.Neutrons.Electrons.

Electrons can be defined as the subatomic particles of a chemical element that are negatively charged and as such are having a magnitude of -1.

Robert Andrew Millikan was born on the 22nd of March, 1868 in Illinois, United States of America. He was an experimental physicist who got honored with a Nobel Prize in 1923 for his outstanding work in the field of physics, which included the following;

The study of the photoelectric effect.The measurement of the elementary electronic charge of a single electron.

This ultimately implies that, Robert Andrew Millikan using an electric field with a small oil-drop determined the magnitude of an electron's charge.

In conclusion, the information which Millikan contributed to the understanding of electrons is determining the amount of charge on an electron.

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You are conducting an experiment to measure the gain in mass of a young mouse over 10 weeks. Instructing a graph represent your data which variable should you place along the X axis and which variable should you played along the Y axis

Answers

In this experiment, the gain in mass should be plotted along the Y axis while the time (in weeks) should be plotted along the X axis of the graph.

The easiest pattern of reporting experimental results in science is by the use of a graph. A graph is a diagrammatic representation of the relationship between two variables along the X-Y Cartesian axes.

In this experiment, we are trying to represent the relationship between the gain in mass and time taken. The experiment is scheduled to run over a course of ten weeks.

The X axis ought to represent the time in weeks while the Y axis ought to represent the gain in mass.

This derives from the fact that it is conventional for the dependent variable (in this case gain in mass) to be plotted along the Y axis while the independent variable (time) to be plotted along the X axis.

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Fitness in an evolutionary sense is measured in:
a. Number of viable offspring produced
b. Physical appearance
c. Lifespan
d. Ability to survive

Answers

Answer:

D. ability to survive

"The central concept of natural selection is the evolutionary fitness of an organism. Fitness is measured by an organism's ability to survive and reproduce, which determines the size of its genetic contribution to the next generation."

Fitness in an evolutionary sense is measured in the ability to survive in a particular habitat. Thus, the correct option is D.

What is Fitness?

Fitness may be defined as the situation of survivability of an organism under a given condition.

It is the concept of natural selection that it is only the relative fitness that estimates the existence or extinction of species in a particular habitat.

The Relative fitness of an organism overall depends on relative survival and relative reproduction.

Therefore, Fitness in an evolutionary sense is measured in the ability to survive in a particular habitat. Thus, the correct option is D.

To learn more about Relative fitness, refer to the link:

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What would the independent variable be in an experiment testing the effectiveness different types of paper airplane?
A. The types of folds made
B. The paper used
C. The distance DI each plane’s flight
D. The color of the paper

Answers

Answer:

A. The type of folds made

Explanation:

independent varible is the one that changes to affect the outcome of the dependent variable

what macromolecules are found in a hot dog ?

Answers

Answer:

contain nitrites and/or nitrates

Explanation:

The meat is comprised of beef, pork, or turkey, which are all forms of protein (again, amino acid polymers). There is also a fair amount of fat (animal fat tends to be in the form of triglycerides) and some degraded genetic material from the original organism now being turned into food. :) In addition to these things, the hot dog may contain some food coloring and will likely contain some preservatives - a common preservative for meats (to prevent botulism and rancidity) is sodium nitrite

How many valves does the human heart have?

Answers

Answer:

The right auricle opens into the right ventricle, this opening is guarded by the tricuspid valve (having three cusps or flaps). Similarly, the opening between the left auricle and the left ventricle is guarded by the bicuspid valve (having two cusps or flaps). These valves regulate the flow of blood in one direction i.e., from auricles into the ventricles.

The blood flows from the right ventricle into the pulmonary artery and from the left ventricle into the aorta (the largest artery). The flow of blood from the ventricles into these two arteries is also regulated by valves. These valves resemble a half moon, hence they are called semi-lunar valves. These valves are present at the opening where the pulmonary artery and aorta leave the right and left ventricles respectively. They ensure that the blood does not flow back into the ventricles.

Love y'all y'all the homies

Answers

Answer:

Thnxxxxxxx :>>

Explanation:

bservations of organisms include descriptions of why the organism has certain traits. descriptions of the number, size, and arrangement of parts of the organism. conclusions made about the characteristics of an organism. conclusions made based on an organism’s DNA.

Answers

Answer:

Scientists first discovered chromosomes in the nineteenth century, when they were gazing at cells through light microscopes. But how did they figure out what chromosomes do? And how did they link chromosomes — and the specific genes within them — to the concept of inheritance? After a long period of observational studies through microscopes, several experiments with fruit flies provided the first evidence.

100 points!!!! pls help!!!
A football player gets tackled during the game, which of the following body systems is responsible for protecting their organs?



circulatory system



reproductive system



skeletal system



nervous system

Answers

Answer:

Skeletal system

Explanation:

the bones of the skeleton protect the internal organs and reduce the risk of injury on impact. For example, the cranium protects the brain, the ribs offer protection to the heart and lungs, the vertebrae protect the spinal cord and the pelvis offers protection to the sensitive reproductive organs.

Answer:

I believe your best choice from the given choices above would be C) skeletal system. The bone structure within the human body, such as the rib cage for instance, provides protection for our organs and takes more impact rather than any of our organs. Without our skeletal system, we would have zero protection for our organs, increasing the chance of more internal body damage.

What are the functions of the plasma membrane? NO COPY AND PASTE

Answers

Answer:

The function of Plasma membrane is to provides protection for a cells.It also controls movement of substances into and out of the cells.

What is a bacterium?what are the process it does? (all the process from beginning to the end)​

Answers

Answer:

below

Explanation:

Bacterium or bacteria is a unicellular/prokaryotic microorganism that is present in many different settings. I'm not really sure what you mean by "process" but I assume it is how bacteria reproduce. In short, the parent cell creates two clone daughter cells. This procress is called binary fission.

Best of Luck!

Which type of graph do I use for this data table?

Answers

Answer:

you should use normal Data table only and mark

How does the environment influence the survival advantage/disadvantage of certain characteristics?

Answers

Answer:

Many students believe that the physical characteristics of organisms change in response to changes in the environment in which the organisms live, and that these changes are passed on to future generations. For example, there is widespread belief that, over many generations, giraffes have gradually developed longer necks as they competed with other animals and each other to reach higher and higher leaves on trees for food.

Many students also believe that organisms can deliberately develop new traits in order to improve their chances of survival. As an example, students believe that moths with spotted wings are able to change the color and patterns on their wings so they are better camouflaged among tree trunks that may have become darker from pollution from industry. Many students also believe that repeated use of insecticides like DDT has meant present populations of insects have become

Explanation:

what is element. give 3 example​

Answers

Answer:

An element is. a parcel where it is made up of only one kind of particle called atom is known as element.

eg. oxygen

hydrogen

gold

silver

carbon

Explanation:

hope it helps you

what is meant by the word 'anchorage' in biology?​

Answers

the act of anchoring or the state of being anchored IS KNOWN AS ANCHORAGE

attachment, not necessarily adhesive in character, because the mechanism is not assumed the term ought to be more widely used.

How does the amount of nitrogen in inhaled air compare to the amount of nitrogen in exhaled air?
A. There is no nitrogen in either
OB. The nitrogen stays the same in both
C. There is more nitrogen in exhaled ait:
D. There is less nitrogen in exhaled air

Answers

Answer:

from my understanding your body doesn't do anything with the nitrogen so the answere would be B

AB blood type contains what type of antigens?
A. B antigens
B. No antigens
C. A antigens
D. A and B antigens

Answers

Answer:

D. A and B antigens

Explanation:

In AB blood type there is A antigen and B antigen but there are no antibodies.

Do you know biology?

Answers

Answer:

yes  

Explanation:

ask me anything

Put the following in order of how they would occur in an experiment
(a) Analyze the data from the experiment.
(b) Organize the data into charts, tables, and graphs.
(c) Publish the results.
(d) Form a conclusion based on the data.
(e) Repeat the experiment to determine if the data
from the first experiment is reliable.

Answers

Answer:

b,a,d,e,c

Explanation:

What is the definition of Eyewitness

Answers

one who sees an occurrence or an object especially : one who gives a report on what he or she has seen.
A person who has personally seen something happen and so can give a first-hand description of it.

what do viruses have in common with living things.

A- they are made up of specialized cells
B- they contain genetic material
C- they reproduce by mitosis
D- They contain chlorophyll ​

Answers

Answer:

B-They contain genetic material.

Explanation:

They are not made out of cells. They don't reproduce by mitosis(Only cells reproduce by mitosis).

Only specialized plant cells contain chlorophyll.

They do have genetic material which could be DNA or RNA.

what is cell cycle? in detail ​

Answers

Answer:

A cell cycle is a series of events that takes place in a cell as it grows and divides. A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division.

Answer:

A cell cycle is a series of events that takes place in a cell as it grows and divides. A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division.

Explanation:

En las células eucariotas el ADN se transcribe a ARN y posteriormente éste se traduce para
fabricar una proteína. Como se muestra en el esquema, la cadena de ADN se transcribe a su
Complementario de ARN mensajero (ARNm). Este sale del núcleo yes leído, en grupos de 3
nucleótidos para atraer complementarios de ARN de transferencia (ARNT), a los cuales se unen
aminoácidos (aa) particulares, con la ayuda de los ribosomas.
Teniendo en cuenta el código de traducción (ARNt aa) que aparece en la tabla, la secuencia de
aminoácidos que se produciría a partir de una secuencia de ADN: AATTTAGAC, sería

Answers

please we need a translator into English

What organelles are present in both plant and animal cells?

Answers

Answer:

Explanation:

Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.

Answer:

because they both contain eukrayotic cells.

Question 1(Multiple Choice Worth 5 points)
(06.04 LC)

The __________ system is responsible for moving blood cells throughout the body.

circulatory
endocrine
immune
respiratory

Answers

Answer:

The . .circulatory system is responsible for moving blood cells throughout the body.circulatory

I hope it helps

Answer:

Hii!! the answer is circulatory

Explanation:

Circulatory is the only responsible system for moving cells. The blood circulatory system, is a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the entire body of a human or other vertebrate. Hope this helps! Bye bye.

7. What are the major differences between prokaryotic and eukaryotic cells-

Answers

Answer:

Eukaryotic cells have membrane-bound nucleus while prokaryotic cells do not have.

how does a number of injuries per cat relates a number of stories a cat falls

Answers

They all have the same number of injuries

state the scientific name for thyme
what are the side effects of peppermint
[thank you]

Answers

Here is your answer hope it helps.

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