which of these is an example of a chemical change a lighting a match B. dissolving sugar in water C. tearing up a piece of paper D.frezzing water​

Answers

Answer 1

Answer:

A oxidation reactions are usually irreversible and form new product

and burn up


Related Questions

Mario and several friends spend a day at the beach. While watching the ocean waves crashing to shore, Mario wonders how much of the world’s water is contained in different types of bodies of water such as oceans, lakes, and rivers. He decides to research the percentage of Earth’s water found in different locations. Which does his research reveal? Multiple choice question.
A) Less than 3 percent of Earth’s water is freshwater containing no salt.
B) The ice caps located at both poles contain 30 percent of Earth’s water.
C) Fifty percent of Earth’s water is in oceans and the glaciers at the poles.
D) Ninety percent of Earth’s water is in lakes, rivers, and groundwater.

Answers

Answer:

B

Explanation:

as shown

HELPPPP
A student is learning about the cell theory in science class, and she applies it to a fern that she is growing in her bedroom. The cell theory states that which of the following characteristics of the fern must be true?
A) The fern's cells came into existence spontaneously.
B) The fern is made up of a collection of cells.
C) The cells that make up the fern are nonliving.
D) The fern is made up of compounds that aren't cells.

Answers

Answer:

b

Explanation:

all living things are made up of cells.

In what ways can students use time management? Check all that apply. to determine when to study to choose what classes to take to decide how to use study time to decide if breaks are needed to create a study schedule

Answers

Answer:

by planning what to do next

Explanation:

Answer:

Option 3, Option 4, and Option 5.

Explanation:

if these are not correct tell me.

What is the relationship between the number of wolves and the number
of deer?

Answers

Answer:

if the number of wolves increase the number of deer decrease

Explanation:

because deers are prey and wolves are predators

Wolves and deer show a prey-predator relationship. This indicates that as the number of wolves increases, the number of deer decreases and if the number of deer increases it means that the number of wolves has been decreased.

What is Prey-predator relationship?

Prey-predator relationship is a type of association seen in the environment. In this relationship, one species feeds upon the other species. The prey species is the animal being fed on, and the predator is the animal who feeds. The predator prey relationship develops over time.

As the prey population increases, there is more food for the predators. So, after a small time, the predator population increases as well. This number keeps on increasing till sufficient food is available. As the number of predators keeps on increasing, more prey are captured. This results in the decrease in prey population.

The relationship between the wolf and its prey, deer is very complex.  Wolves population keep deer moving, which provides an ecological benefit for the health of the deer and plant species which are damaged from over-browsing. This keeps the number of species constant.

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help me pleaseeeeeeee asap

Answers

Answer:

yes              

Explanation:

Which of the following compounds is digested by pepsin? A. carbohydrates B. fats C. minerals D. proteins

Answers

Pepsin breaks down protein so D is ur answer

Digestion takes place inside____containing_____​

Answers

Answer:

Digestion takes place inside lysosomes containing digestive enzymes.

Explanation:

Lysosomes contain digestive enzymes, and do to lysosomes being able to break down and digest things. I hope I answered your question the way you wanted it to be answer.

In a short essay (100–150 words), explain how oxidative phosphorylation—the production of ATP using energy derived from the redox reactions of a spatially organized electron transport chain followed by chemiosmosis—is an example of how new properties emerge at each level of the biological hierarchy.

Answers

Answer:

Oxidative phosphorylation is the main process that takes place in the mitochondria to produce ATP by the series of various carriers from NADH or FADH2 to Oxygen molecules. This involves a spatially organized electron transport system in form of a chain of the redox reactions.

The properties that emerge occurs only when there is two or more part of the chain work together and not individually. If all the part such as various part of ETC or ATP synthase and the membrane of the organelle all together workes in an orderly manner then only ATP will be formed by producing H+ protein.

Select the definition of this word: GLUCOSE

Answers

Answer:

Glucose - a simple sugar which is an important energy source in living organisms and is a component of many carbohydrates.

Answer:

Glucose is a sugar produced by plants. It is usually made in the process of photosythesis. This glucose is what plants eat and use to live with.

Hope this helps!

Which organelle takes in " sun showers" and helps plants with the process of photosynthesis?

vaculoe


cytoplasm


Mitochondria


Chlorplast

Answers

Chlorplast is the organelle that takes in quote-on-quote "sun showers" and helps plants with the process of photosynthesis.

In pure water, what is the probability of a hydronium ion forming?

Answers

Answer:

1 in ten million chance

Explanation:

Which two cycles are linked by the production and utilization of carbon dioxide? Where do these cycles occur?

Answers

Answer: The Calvin Cycle in Photosynthesis and The Krebs Cycle in Cellular Respiration. The Calvin Cycle occurs in chloroplasts and The Krebs Cycle occurs in the Mitochondria.

Explanation:

The two cycles that are associated by the utilization and production of carbon dioxide are cellular respiration and photosynthesis. These two processes takes place in the mitochondria and chloroplasts.

What is photosynthesis and cellular respiration?

The process by which green plants and some of the organisms utilize light from the sun to produce foods from water and carbon dioxide is known as photosynthesis. The process generally takes place in the chloroplasts of the cell.  In the process, energy is captured and oxygen is released.

The set of metabolic reactions and procedures, which occur in the cells of organisms to transform chemical energy from the molecules of oxygen or nutrients into ATP, and then discharge waste products like water and carbon dioxide. The process takes place within the mitochondria.

Thus, in cellular respiration production of carbon dioxide takes place, while in the process of photosynthesis carbon dioxide is used to produce food.

Find out more information about the association between the cellular respiration and photosynthesis here:

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Where in an equation for photosynthesis does oxygen belong?

on the left side, because it is a product
on the right side, because it is a product
on the right side, because it is a reactant
on the left side, because it is a reactant

Answers

Answer:

On the right side, because it is a product.

Explanation:

       6 CO2 + 6 H2O + light -----> C6 H12O2 + 6 O2.

In photosynthesis, the oxygen belongs to the right side of the reaction, because it is a product. Thus, the correct option is B.

What is Photosynthesis?

Photosynthesis may be defined as the process through which green plants and some algae prepare their own food (glucose) with the help of carbon dioxide and water in the presence of sunlight.

The chemical reaction of the photosynthesis is as follows:

[tex]6CO_2 + 12H_2O[/tex] + sunlight → [tex]C_6H_1_2O_6 + 6O_2 + 6H_2O[/tex].

Therefore, in photosynthesis, the oxygen belongs to the right side of the reaction, because it is a product. Thus, the correct option is B.

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Complete the table about subatomic particles?! Plz help?

Answers

Answer:

protons have a positive charge and are located inside of the nucleus. electrons have a negative charge and are located outside of the nucleus. neutrons have a neutral charge and are located inside of the nucleus.

The table about subatomic particles is completed below:

Electrons are negatively charged in nature and located outside the nucleus. Protons are positively charged in nature and located inside the nucleus. Neutrons are neutrally charged in nature and located inside the nucleus.

What do you mean by Electrons?

Electrons may be defined as the type of subatomic particles that are significantly revolving around the nucleus of an atom in orbitals. These subatomic particles are negatively charged in nature. J.J. Thomson was thought to be the discoverer of these particles.

Ernest Rutherford was thought to be the discoverer of the subatomic particles known as Protons. While Chadwick was thought to be the discoverer of the subatomic particles known as neutrons. The function of each subatomic particle is very distinctive within the atom.

Therefore, the table about subatomic particles is well described above.

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where is energy stored in biomolecules

Answers

Answer:

in bonds

Explanation:

What can be said about the growth trend for boys in Paul’s family? a. All four boys grew at a steady, consistent rate between the ages of 8 and 24. b. All four boys had a growth spurt around the age of 20. c. Between the ages of 12 and 16, all four boys had the biggest jump in height. d. Between the ages of 8 and 12,

Answers

The question is incomplete as the required data is not given, however, the data associated with the question is as follows:

There are four boys in paul's family. by the age of nineteen, all of them are over six feet tall. the data table below shows their height at different ages:

          age 8      age 12    age 16       age 20       age 24    

paul   4 ft 8 in   5 ft 0 in   5 ft 11 in    6 ft 1 in     6 ft 1 in

bruce  4 ft 6 in   4 ft 11 in   5 ft 10 in   6 ft 1 in   6 ft 1 in

tom    4 ft 9 in    5 ft 0 in    6 ft 0 in     6 ft 2 in    6 ft 2 in

steve  4 ft 7 in  4 ft 11 in   5 ft 11 in    6 ft 1 in    6 ft 1 in

Answer:

The correct answer is option C. Between the ages of 12 and 16, all four boys had the biggest jump in height.

Explanation:

According to the given data, normally boys exhibit physical growth during puberty. The growth rate is at the highest level between the ages of 12 and 16 that is the puberty period.

It is found that during this period the growth of the height reaches its 90 percent. The same trend is given in the data provides all four boys show the highest jump between 12 to 16.

In a carbon dioxide molecule (O=C=O), which statement is true of the electrons?
A) The electrons are being shared between the carbon and oxygen atoms.
B) The carbon has gained electrons, giving it a negative charge.
C) The electrons are involved in ionic bonding.
D) The oxygens have gained electrons, giving them a negative charge.

Answers

Answer: Option A.

The electrons are being shared between the carbon and oxygen atoms.

Explanation:The electrons are being shared between the carbon and oxygen atoms because each oxygen share four electrons with the central carbon, therefore carbon atoms have 8 electrons that is shared with oxygen. The oxygen have two shared pairs in double bond and two lone pairs in non bonding. Carbon and oxygen form covalent bond. This satisfies the octet rule because the electrons are shared in both oxygen and carbon octet.

In a carbon dioxide molecule (O=C=O),

All proteins have a primary structure. Fibrous and globular proteins have a secondary structure: α helix or β pleated. Globular proteins also have a tertiary structure due to interactions of amino acid side chains with water. Most globular proteins, including hemoglobin also have a quaternary structure. Which of these structures is due to H bonding between amino acid chains?

A) A
B) B
C) C
D) D

Answers

The answer for this question is A

Answer:

The answer is B

Explanation:

I had it on usatestprep :)

In the open ocean tiny organisms on the surface perform photosynthesis and release oxygen. These are called​

Answers

Answer:Phytoplankton hope this helps!

Explanation:

Answer:

Phytoplankton! :)

While hurricanes can be violent storms that cause millions of dollar damage, they fortunately do not last very long. There are several things that may cause the breakup of a hurricane. Which of the following would NOT cause the breakup of the hurricane?

A: the hurricane moving to sea from West Africa
B: the hurricane moving over land
C: very high winds at high altitudes
D: the hurricane moving over cold water

Answers

A) the hurricane moving to sea from West Africa.
hope this helps x

WILL GIVE BRAINLESIT Which of the following aspects of harvesting natural resources is specific to petroleum engineers? O researching studies about resources O designing extraction quipment O surveving rocks for minerals O discovering past water sources​

Answers

designing extract equipment :)

Answer:  The correct answer is designing extraction equipment

Explanation:  This answer has been confirmed correct.

Petroleum engineers require extraction equipment (such as drilling rigs) to harvest petroleum products.

A plant bending towards a light source is an example of which characteristic of life?

Group of answer choices

metabolism

responsiveness

reproduction

heredity

Answers

Answer:

reproduction

Explanation:

The prefix endo- is Greek for "within". If the word part plasm refers to the "body" of the cell, what does the prefix endo- tell you about the endoplasmic reticulum?

Answers

Answer:

Within the Body's reticulum?

Explanation:

What are two examples of non- contact force?

Answers

Answer:

Magnetic and gravitational forces

Explanation:

these forces act on an object without coming physically in contact with it

How do you explain unspecialized cells?

Answers

An unspecialized cell that can give rise to one or more different types of specialized cells, such as blood cells and nerve cells. Stem cells are present in embryos and in various tissues of adult organisms

Answer:

a special kind of cell from an EMBRYO, FOETUS or adult, capable of renewing itself under certain conditions, and of becoming specialized cells that make up the different TISSUES and ORGANS of the body A stem cell remains largely undifferentiated and uncommitted to a specific function,

Explanation:

HOPE THIS HELPS!

What is the name of Alfred Wegener's hypothesis about moving landmasses? *

A) continental drift
B) seafloor spreading
C) continental movement
D) plate tectonics

Answers

B. Seafloor spreading

Reactants are on the left side of a chemical equation while ______________ are on the right side.

Answers

Answer:

Products

Explanation:

I may be wrong, but this is the explanation:

In a chemical equation, the reactants are written on the left, and the products are written on the right. The coefficients next to the symbols of entities indicate the number of moles of a substance produced or used in the chemical reaction.

Products because in the chemical equation there are reactants and products where reactants are on the left and products on the right


Lipids play a major role in the structure of cell membranes. Which of the following
statements best supports this claim?
A Lipids allow water to freely pass through by forming a hydrophilic bilayer.
B Lipids can be stored in tissues to serve as a source of energy in case of starvation.
C Lipids create a thin hydrophobic layer that helps maintain selective permeability.
D Lipids assist in membrane transport by creating carriers for molecules that are too large
or too charged to pass through the membrane on their own.

Answers

The statement that best supports the claim is C.

The two regions of the lipid bilayer allow for selective permeability (very important for the membrane & overall cell)

PLEASE HELP ME FRIENDS

Answers

Answer:

A

Explanation:

because if you look at the compass it shows witch

way it is moving

Answer:

Im pretty sure its D

Explanation:

Because of the fact that it is stating what direction were the plates going and they we going toward the inside but another plate stopped that

Brainliest?

component of a phospholipid?

Answers

Answer:

Phosphate group headTwo fatty acid tails

Explanation:

A phospholipid is made up of a phosphate group head and two fatty acid tails. They are connected by a molecule of glycerol.

To form cell membranes, phospholipids line up with their hydrophilic (water loving) heads on the outside of the cell and their hydrophobic (water hating) tails inside.

A second layer of phospholipids forms with the heads facing inside the cell and tails facing away. This forms a double layer - with the phosphate group heads on the outside, and fatty acid tails on the inside. This double layer, called a lipid bilayer, forms the cell membrane.

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