A chemical compound is considered to be a pure substance. This is because each molecule of the chemical compound has the same chemical formula.

Answers

Answer 1

Answer:

A compound is a pure substance composed of two or more different atoms chemically bonded to one another. A compound can be destroyed by chemical means. It might be broken down into simpler compounds, into its elements or a combination of the two.

Explanation:

Answer 2

Answer:

Sample Answer: Even though a compound can be made of two or more types of atoms, it is still a pure substance because the compound can be isolated, like salt or water.

Explanation:


Related Questions

Which of the following processes accounts for genetic variation leading to species diversity?

Meiosis

All accounts for special diversity

Binary fission

Mitosis

Answers

Answer:

eu acho que é a A

um belo dia abençoado

definition of anabolism.​

Answers

the synthesis of complex molecules in living organisms from simpler ones together with the storage of energy; constructive metabolism.

Answer:

Anabolism

Explanation:

As a noun:

the synthesis of complex molecules in living organisms from simpler ones together with the storage of energy; constructive metabolism.

Anabolism is the set of metabolic pathways that construct molecules from smaller units. These reactions require energy, known also as an endergonic process. Anabolism is the building-up aspect of metabolism, whereas catabolism is the breaking-down aspect. Anabolism is usually synonymous with biosynthesis.

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Which describes one way that renewable resources differ from nonrenewable resources?
•Renewable resources make cleaner energy.
•It takes longer to replenish renewable resources.
•Renewable resources are more easily located and harvested.
•It often costs much less to produce energy from renewable resources.

Answers

Answer:

the answer is A

Explanation:

i did the exam review  

brainliest plzzzz

Answer:

the answer its A

Explanation:

i did the exam review and i made a 100

What is the name of the adjusting of systems within a cell to
maintain homeostasis?
a Equilibrium
b Endocytosis
C Exocytosis
d Active transport
e Homeostatic regulation

Answers

Answer is Homeostatic Regulation

Why is the global change model important ? What does it tell us?

Answers

Answer: Climate models are important tools for improving our understanding and predictability of climate behavior on seasonal, annual, decadal, and centennial time scales. Models investigate the degree to which observed climate changes may be due to natural variability, human activity, or a combination of both.

Explanation:

what part of an atom is mostly empty space

Answers

nearly all of it. if there’s answer choices can you please tell me?

Answer:

Based on this strange experiment, Rutherford proposed a new idea of what an atom is. Rutherford said that most of an atom is empty space, where negatively charged electrons orbit. The only solid part of an atom is the nucleus, where the positively charge protons are found.

Explanation:

changing the ph toward the optimal ph will do what to the rate of the reaction

Answers

Answer:

in my opinion it would increase the substrate rate of reaction

Explanation:

hope I tried being helpful and thanks

Are tomate plants multicellular or unicellular?

Answers

Answer:

Tomato plants are multicellular.

Explanation:

Tomato plants have many organisms with many parts that work together to keep the plant alive.

Answer:

a multicellular organism

Explanation:  many parts that work together to keep the plant alive

Felix told his dad that Earth's different spheres contributed to different stages in the water cycle.

He showed that certain elements of the geosphere and biosphere can affect the amount of water in the water cycle. In what ways do the geosphere and the biosphere add water to the water cycle? Choose the two that apply.
A. Rain falls from the clouds.
B. Water evaporates from the soil.
C. Animals breathe.
D. Water evaporates from the ocean.

Answers

The answer is A. Rain falls from the clouds

Examine the diagram of a cell.



Which accurately labels the cytoplasm?

W
X
Y
Z

Answers

Answer:

Y

The cytoplasm is what holds everything together in a cell

Answer:

Y

Explanation:

Y represents cytoplasm in cell

Butter is a fat that is a solid at room temperature. What type of fatty acids does butter contain? If you studied its molecular structure what would you se tht is different from fats that are liquid at room temperature

Answers

Answer:

saturated fatty acids

Explanation:

Butter is a fat that is solid at room temperature because it is a saturated fatty acid and contains 70 percent of It. Butter comes from a cow, which is an animal source.

Fats that are liquid at room temperature are unsaturated fatty acids. The molecular structure of saturated fatty acid and unsaturated fatty acid are different as saturated fatty acids lack double bonds while unsaturated fatty acids consist of at least one double bond. saturated fatty acids are linear and unbranched while unsaturated fatty acids are branched.

Hence, butter contains saturated fatty acids.

2. Proteases are enzymes that hydrolyze peptide bonds of which type of
compound?
F. Lipids
G. Carbohydrates
H. Proteins
J. Nucleic Acids

Answers

I believe it is H. proteins

Describe.akljsdljakdkafhafalkfhal

Answers

.akljsdljakdkafhafalkfhal means .akljsdljakdkafhafalkfhal

HOPE THAT HELPS !!! THANKS FOR THE FIVE POINTS!!

Which statement about an isotonic solution is correct? * 7 points The solution has the same solute concentration as the cell. The solution has a higher solute concentration than the cell. A cell in the solution will lose water. A cell in the solution will gain water.

Answers

Answer:

The solution has the same solute concentration as the cell.

Explanation:

Tonicity of a solution refers to the ability for a solution to direct the flow of water into or out of a cell via osmotic process. Based on this, a solution can either be hypertonic, hypotonic and isotonic.

- A hypertonic solution is a solution in which the solute concentration is high in relation with that of an intracellular solution. Hence, water moves out of the cell.

- A hypotonic solution is a solution which solute concentration is low in relation to that of an intracellular solution. Hence, water moves into the cell.

- An ISOTONIC solution is a solution that has the same solute concentration as that of an intracellular environment i.e. equal solute concentration. There is a net water movement

Please help
Who is karl popper and why is he important and please answer with your own word and thank you

Answers

British philosopher, academic and social commentator. One of the 20th century's most influential philosophers of science, Popper is known for his rejection of the classical inductivist views on the scientific method in favour of empirical falsification

1. Yeast uses photosynthesis to provide its own energy. True or False 2. Yeast has chlorophyll. True or False 3. Given the statements below, choose the one that is true about one-celled living things. 1. Under normal conditions, yeast produces spores. 2. The adult stage for one-celled organisms is usually extremely long. 3. Algae can only be unicellular. 4. Because of its size, algae does not make much oxygen for the earth.

Answers

Answer:

1. False

2. False

3. The adult stage for one-celled organisms is usually extremely long.

Explanation:

1. Yeast is a fungus that uses heterotrophic means of obtaining food. A yeast cell does not have the ability to perform photosynthesis (provide energy source) because it cannot make use of light energy from the sun. Hence, the answer is FALSE.

2. The cells of a yeast lacks chlorophyll pigment needed for the capturing of light energy. Hence, this statement is FALSE.

3. Yeast is a unicellular organism that reproduces via spores and budding. Budding is the asexual form of reproduction while they produce spores when stressed. However, the adult stage for one-celled organisms is usually extremely long.

Refer to the diagram. The circle represents a eukaryotic cell and it is placed in a beaker. Cell membranes are semi-permeable.
Solution concentrations can be the same, more concentrated or less concentrated on either side of the cell membrane
82% H2O
18%
solute
25% H2O
75% solute
Figure 4
After interpreting the diagram (Figure 4), where will the water flow and what type of solution will it flow into? (SC 912 L. 143 - Sub Cat. SC 912 L. 14.2)
o Water will flow out from the cell into an isotonic solution
O Water will flow out from the cell into a hypertonic solution
Water will flow into the call from a hypertonic solution
O Water will flow into the cell from a hypotonic solution

Answers

Answer: Water will flow out from the cell into an isotonic solution

The function of DNA is to provide energy for the cell
True
False

Answers

Answer:

yes, it's TRUE

GOOD LUCK GUYS!

(study island, helppp please)

Answers

Answer:

a

Explanation:

Answer:

C

Explanation:

I know it has to be swamp and marshes and C is the only one with both of those so

. A researcher confirmed her hypothesis by obtaining data through a scientific study. She published her work and results, while proudly stating she had developed a new theory. How would other scientists most likely react to this claim? A. They would support her claim of a new theory because she supported it with data. B. They would support her theory because she published her research for others to use. C. They would reject her new claim because her hypothesis probably disagrees with others' studies. D. They would reject her claim of a new theory because she was the only person to complete the scientific study.

Answers

Answer:

A. They would support her claim of a new theory because she supported it with data.

Explanation:

A scientific study is done to confirm the hypothesis which is based on scientific data. Scientific data is defined as factual information collected by doing experiments or methods for studying a specific purpose.

As shown in the question, a girl publishes her work and results based on scientific study and scientific data, so she would get support from other scientists on her claim of a new theory because she supported it with data. A new theory based on scientific data is more accurate and true.

Hence, the correct answer is "A."

What do these images model? A. atoms B. compounds C. elements D. mixtures

Answers

Answer:

mixtures

Explanation:

ok where is the images I will be willing to reanswer if you add the images next time.

The dark, finger-shaped shadow is the Florida peninsula. The yellow band along the east coast of the U.S. is the Gulf Stream current flowing northward. Much of this water comes from the Equator.

What does this demonstrate?
A.
The Gulf Stream current forms in polar areas.
B.
The Gulf Stream current is the major factor that slows down evaporation.
C.
The Gulf Stream current changes weather patterns on the east coast of Africa.
D.
The Gulf Stream current transports warm water to areas of colder water.

Answers

Answer:

I think is b    

Explanation:because I thing

Answer:it’s d:)

Explanation:study island

Which part of our immune system takes
longer to respond but acts quicker the next
time the same pathogen attacks us?
Innate immune response
Acquire immune response

Answers

Answer:

The adaptive immune response is a slower-acting, longer-lasting, and more specific response than the innate response. However, the adaptive response requires information from the innate immune system to function. APCs display antigens via MHC molecules to complementary naïve T cells.

Explanation:

11
Identify whether the element is a metal, metalloid, or a nonmetal: Lithium
metal
nonmetal
metalloid
e referred to as:

Answers

The element Lithium is a metal.

Describe the process of asexual reproduction in the following I)Amoeba 2) Rhizopus 3)yeast 4)spirogyra​

Answers

Answer:

1)Amoeba reproduces by the common asexual reproduction method called binary fission. After replicating its genetic material through mitotic division, the cell divides into two equal sized daughter cells. ... In this process, the nucleus of the Amoeba first divides to form two daughter nuclei by the process of Karyokinesis.

2)Rhizopus is the species of a fungus. They reproduce asexually by the formation of the spores. ... The sporangium is a swollen structure at the tip of the filaments bearing the spores. The spores are tough and resistant structures which are dispersed by the breaking of the sporangium.

3)Budding in Yeast .Most yeasts reproduce asexually by an asymmetric division process called budding. First it produces a small protuberance on the parent cell that grows to a full size and forms a bud. The nucleus of the parent cell splits into a daughter nucleus and migrates into the daughter cell.

4)Spirogyra species can reproduce both sexually and asexually. Asexual, or vegetative, reproduction occurs by simple fragmentation of the filaments. Sexual reproduction occurs by a process known as conjugation, in which cells of two filaments lying side by side are joined by outgrowths called conjugation tubes.

What level of taxonomy is MORE specific than Phylum but LESS specific than Order?​

Answers

Answer:Examples of taxonomic ranks are species, genus, family, order, class, phylum, kingdom, domain, etc. A given rank subsumes under it less general categories, that is, more specific descriptions of life forms.

Explanation:

12 POINTS will mark brain least promise THIS ANSWER IS EASY IF U KNOW WHAT A DNA MODEL IS

Describe your DNA model. Which part do the straws represent? The pushpins? The paper clips and the black dots you made with the marker?


Observe the two strands of your model. Are they identical, or are they complementary? Explain your answer.

Answers

Answer:

this is a better one

Explanation:

whats the percent of salt water

Answers

[tex]\huge\boxed{97}[/tex]

[tex]\text {Since 97 Percent of Ocean water is salt this leaves us with 3 percent of Fresh water.}[/tex]

[tex]\text {Earth Surface water 97 Percent is in the ocean and the remaining 3 Percent}[/tex] [tex]\text {is trapped in ice and glaciers.}[/tex]

[tex]\text {Best of Luck!}[/tex]

If the Earth's axis is tilted towards the Sun, what are those places on Earth experiencing?
It'd help if you could answer, because I don't speak Google.

Answers

Answer:

Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere.

The slight attractions that develop between oppositely charged regions of nearby molecules are called ______

Answers

Explanation:

They are called, " vanderwals," forces. not as strong as covalent bonds or ionic bonds, but still exist...

The slight attractions that develop between oppositely charged regions of nearby molecules are called Van der Walls force.

When they are at a moderate distance, the molecules attract each other, but when their electron clouds begin to overlap, the molecules repel each other strongly.

Van der Walls force are forces of attraction or repulsion between molecular entities different from those that are due to the electrostatic interaction of ionic groups with each other or with neutral molecules.

That is, they are slight attractive forces that are established between electrically neutral molecules (both polar and nonpolar), but they are very numerous and play a fundamental role in many biological processes.

These form a non-covalent chemical bond in which two types of forces or interactions participate, dispersion forces (which are attractive forces) and repulsion forces.

Therefore, we can conclude that the slight attractions that develop between oppositely charged regions of nearby molecules are called Van der Walls force.

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