2H2 + O2 + 2H2O
In this chemical equation, there are two Hz molecules and
Oz molecule
present in the reactants (the
_). The arrow represents the reaction
occurring. After the reaction, two water
are produced
It is important to point out that during a chemical reaction, the amount of an element
present in the reactants will be
to the amount in the products.
For example, if you start with two oxygen atoms, you will end with
oxygen
atoms. Similarly, if you start w 4g of hydrogen, you will
4g of
hydrogen. The total mass of materials
the total mass of products.
This is known as the Law of
of
During
a reaction, matter can neither be
nor
only
changed in form.
Broken
Equations
left
Chemicals
equal
matter
produced
Conservation
equals
mixtures
produce
created
formed
molecules
reactions
destroyed
ingredients
new
reacting
one
two

Answers

Answer 1

Answer:

Hydrogen peroxide is the best way to use it

Explanation:


Related Questions

Explain the relationship between habitat size and species diversity

Answers

Answer:

The bigger the habit and the more types of species can be developed and thrive.

Explanation:

What might be some reasons why cellular communication is necessary?

Answers

Answer:

in single-celled organism,signaling allows population of cells to coordinate with one another and work like a team to accomplish tasks no single cell could carry out on its own. the study of cell signaling touches multiple biological disciplines 5 years developmental biology , neurontology, and endocrinology.

* explanation* : hope this helped you

A scientist finds that a sample of matter contains three types of atoms. The sample can be any of the following, except:
A. compound
B. molecule
C. element
D. mixture

Answers

Answer:

D. mixture

Explanation:

because the mixture is not part of an atom

As per the given scenario, the sample can be any of the following, except element. The correct option is C.

What is an element?

A substance that is unable to broken down chemically into smaller molecules.

An element is made up of atoms with the same atomic number, which means that each atom possesses the same count of protons in its nucleus as the other atoms in the element.

A chemical compound is a chemical substance made up of many identical molecules made up of atoms from multiple elements that are held together by chemical bonds.

A molecule made up of only one element's atoms is thus not a compound.

A scientist discovers three types of atoms in a sample of matter. Except for elements, the sample can be any of the compound, molecule or mixture.

Thus, the correct option is C.

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In the box provided explain why living organisms
contain more hydrogen atoms than any other
atoms, yet 65% of a typical organism's mass is
oxygen
І

Answers

Answer:

Explanation:

Living organisms are mostly made of water. Water is a molecule made from 2 hydrogen atoms and 1 oxygen atom, H2O. Now even though there are 2 hydrogen atoms for every oxygen atom in a living organism oxygen atoms are much heavier than hydrogen atoms. Hydrogen atoms are more than 15 times lighter than oxygen atoms and this is why they can be fewer atoms of oxygen in the body but they will still represent a lot of its weight.

Answer:

The living species comprise more number of hydrogen atoms in comparison to any other atoms, still 65 percent of the usual organism's mass is oxygen. The prime reason for this is that an atom of oxygen comprises sixteen times more mass in comparison to a hydrogen atom.  

Explanation:

Sickle cell anemia is a genetic condition that occurs because of a single point mutation in the DNA gene for hemoglobin. How is this mutation expressed in humans?

Answers

Answer:

Hello. Let me explain.

Explanation:

This type of anemia first of all before the Erytrocyte loses its nucleus ،at chromosome number 11 this mutation happens and valine (s type of amino acid)is replaced with glutamic acid.

Then this abnormal hemoglobins are produced in ribosomes (after transcription and translation).

This hemoglobins make a long strand which makes the RBC have a sickle shape.

This abnormal cells are very fragile.

The normal RBC is alive for about 120 days but this cells are slive for just 15 days.

This sickle shaped cells can also close blood vessels.

Macrophages destroy them so the anemia accurs.

If you have 50 mg of starch, how much water needs to be added to make a concentration of 5g/mL.

Answers

1:5 dilution = 1/5 dilution = 1 part sample and 4 parts diluent in a total of 5 parts. If you need 10 ml, final volume, then you need 1/5 of 10 ml = 2 ml sample. To bring this 2 ml sample up to a total volume of 10 ml, you must add 10 ml - 2 ml = 8 ml diluent.

Which two are necessary for a functional ecosystem?

A. Herbivores
B. Carnivores
C. Producers
D. Decomposers

Answers

Answer:C and D

Explanation:

Answer: C & D

Explanation:

Producers start the cycle off by creating food from the energy from the sun. Then decomposers are the last on the cycle. They recycle all the leftover nutrients.

Please help quickly I thought it was a bit I think I’m wrong

Answers

Answer:

it's the first one. the waste will harm others

the first answer—- dumping pollution into the streams will definitely effect animals and people :)

photosynthesis and cellular respiration both involve the use and release of gases. which statement correctly identifies the role of the gasses in two processes?

A. photosynthesis and cellular respiration both use carbon dioxide to release oxygen

B.photosynthesis and cellular respiration both use oxygen and release carbon dioxide

C.cellular respiration uses oxygen and releases carbon dioxide,while photosynthesis uses carbon dioxide and releases oxygen

D. cellular respiration uses carbon dioxide and releases oxygen, while photosynthesis uses carbon dioxide and releases oxygen
With explanation please and thank you!

Answers

Answer:

Cellular respiration uses oxygen and releases carbon dioxide, while photosynthesis uses carbon dioxide and releases oxygen.

Explanation:

Cellular respiration uses oxygen and releases carbon dioxide, while photosynthesis uses carbon dioxide and releases oxygen. The correct option is C.

What is cellular respiration?

Cellular respiration is a sequence of chemical processes that decompose glucose to start producing ATP, which can then be used as energy to power a wide range of processes throughout the body.

Cellular respiration consists of three major steps namely glycolysis, the citric acid cycle, and oxidative phosphorylation.

The use of photoautotrophic procedures to obtain the glucose required for cellular respiration is an illustration of cellular respiration in plants.

This means that plants can use light energy from the sun to produce glucose and oxygen.

On the other hand, the process of photosynthesis utilizes carbon dioxide and release oxygen as a byproduct.

Thus, the correct option is C.

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If you are feeling tired and slow, what type of food would you eat to get an immediate energy burst?

A. Lipids
B. Polysaccharides
C. Proteins
D. Monosaccharides

Answers

Polysaccharides would give you immediate energy burst I think

Answer:

B. Polysaccharides

Explanation:

The polymers of Carbohydrates are polysaccharides. Carbohydrates contain lots of gluten/sugar, which is great for quick energy.

Nemo, a marine fish (adapted for life in the sea salt water ) is placed inside a freshwater aquarium. The next day, the owner finds that he has perished(died) in the tank! Why?

Answers

Answer:

The freshwater is hypotonic to the fish

Explanation:

A marine fish is adapted to living in water that is salty.

The fish will not survive because the freshwater would be hypotonic to the body of the fish and as such, excess water would enter its body which will lead to its death. The cells that make up the body of the fish will take-in excess water and lyse, leading to the death of the fish itself.

Which of the following is a chemical byproduct of fermentation in humans?

a. glucose
b. lactic acid
c. ADP
d. pyruvate

Answers

Answer:

b. Lactic acid

the answer is b . lactic acid

write down the properties of soild, liquid and gas

Answers

Answer:

In solids, particles have greater amount of attractive forces, they have fixed shapes and less energy.

In liquids, particles have weak forces of attraction b\w them, they take the shape of their container and have more energy. The often slide pass each other.

In gases, particles have almost no amount of attractive forces, they have no fixed shape and much more energy. They can move freely .

solid: Has a definite shape and volume. liquid: Has a definite volume, but take the shape of the container.
gas: Has no definite shape or volume. change of state: When matter is converted from one of the three states (example: solid, liquid, or gas) to another state.

What is the role of oceans in the carbon cycle?

A:they are carbon sources in the geosphere
B:they are carbon reservoirs in the geosphere
C:they are carbon sources in biosphere
D:they are carbon reservoirs in the hydrosphere

Answers

Answer:The ocean plays a critical role in carbon storage, as it holds about 50 times more carbon than the atmosphere. Two-way carbon exchange can occur quickly between the ocean's surface waters and the atmosphere, but carbon may be stored for centuries at the deepest ocean depths.

Explanation:

Fill in the blank

Pollen grains land on the_____ and move down the ________ into the ________.

Answers

Answer:

Pollen grains land on the stigma and move down the pollen tube into the ovary.

Explain Why is there a net gain of onlý two ATP
molecules in the glycolysis of one six-carbon glucose?

Answers

Answer:

While 4 molecules of ATP are produced in total, 2 were used to convert glucose to the reactive fructose-1,6-bisphosphate

Thus, 4 ATP- 2ATP= 2ATP

Explanation:

In the cytoplasm, cellular respiration starts, where glucose is broken down for energy production. in the presence of oxygen, energy is produced through aerobic respiration, while in an oxygen-deprived environment, anaerobic respiration can be carried out.

Glucose is a relatively stable molecule, thus in order for the pyruvate-producing reaction to occur, the molecule undergoes phosphorylation through the addition of high energy phosphate groups to drive the reaction forward.

Pyruvate is generated through glycolysis in the cytoplasm-it is oxidized to form acetyl CoA in aeroboc respration also used in fermentation (anaerobic respiration) as an electron acceptor.

PLEASE ANSWER 15 POINTS

determine the CHARACTER of the bond that will form between phosphorus and bromine

Answers

bonds between two nonmetals are covalent

Which best summarizes the effects of mutations on organisms?

Mutations are sometimes helpful, sometimes harmful, and sometimes neutral.
Mutations are usually harmful, sometimes neutral, and never helpful.
Mutations are sometimes neutral, sometimes helpful, and never harmful.
Mutations are always harmful, never helpful, and never neutral.

Answers

Answer:

mutations are sometimes helpful, sometimes harmful and sometimes neutral

Explanation:

Answer:

A

Explanation:

Which of the following is the study of the chemistry of living things?
Biology
Geology
Physics
Organic Chemistry

Answers

Answer:

organic chemistry I believe so

Explanation:

good luck

Answer:

Organic Chemistry

Explanation:

Answer picture question! BRAINLIEST FOR CORRECTNESS!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Decomposer I believe is the right answer

Answer:

Decomposer.

Explanation:

Decomposers are the organisms that break down dead things into organic matter and soil.

Investigating how temperature affects decay

Answers

Answer:

How does temperature affect decay?

Temperature. amount of water. Bacteria and fungi secrete enzymes onto food to digest it into soluble substances which they absorb. They respire using oxygen and release heat energy which increases the rate of decay.

Explanation:

Hope this helps, If it did, then I would really appreciate it if you gave me Brainliest, I only need one more to rank up and it has taken forever to get to where I am currently. Thanks.

The breakup of Pangea caused climate changes that caused organisms to adapt
Paleozoic era.
Please select the best answer from the choices provided T F

Answers

Answer:

f

Explanation:

Answer:

F

Explanation:

Was during the Malsozoic Era

The duck-billed platypus is quite an unusual mammal. Use credible websites to research the duck-billed platypus. Why is it unusual compared to other mammals? Why is it classified as a mammal?

Answers

Answer:

Explanation:

fur and milk

A duck billed platypus is classified as a mammal because it feeds its kids with milk and it has fur. They are very unsual because of the way they dig dirt burrows at the water's edge and how they dont have a stomach

Answer:

Sample answer

Like and rate

The duck-billed platypus’s name come from its snout, which looks a lot like a duck’s bill. It has another birdlike characteristic; it lays eggs, which is quite unusual for mammals. In fact, there are only five known mammals that lay eggs. The other four are four species of echidna, also called the spiny anteater. The duck-billed platypus is classified as a mammal because it has body hair, it’s warm-blooded, and the females produce milk.

Glycolysis is the first of three steps in cellular respiration. Review glycolysis by matching each phrase on the right with a term on the left. Some terms are used twice.
____1. Compound formed between glucose and pyruvic acid
____2. Not involved in glycolysis
____3. Fuel molecule broken down in glycolysis
____4. Produced by substrate-level phosphorylation
____5. Invested to energize glucose molecule at start of process
____6. Reduced as glucose is oxidized
____7. Glucose converted to two molecules of this
____8. Assembled to make ATP
____9. "Splitting of sugar" 10. Carries hydrogen and electrons from oxidation of glucose
A NADH
B. Pyruvic acid
C ATP
D. NAD
E .Glucose
F. Glycolysis
G. ADP and P
H.Oxygen
I. Intermediate

Answers

Answer:Glycolysis is the first of three steps in cellular respiration. Review glycolysis by matching each phrase on the right with a term on the left. Some terms are used twice.

____1. Compound formed between glucose and pyruvic acid

____2. Not involved in glycolysis

____3. Fuel molecule broken down in glycolysis

____4. Produced by substrate-level phosphorylation

____5. Invested to energize glucose molecule at start of process

____6. Reduced as glucose is oxidized

____7. Glucose converted to two molecules of this

____8. Assembled to make ATP

____9. "Splitting of sugar" 10. Carries hydrogen and electrons from oxidation of glucose

A NADH

B. Pyruvic acid

C ATP

D. NAD

E .Glucose

F. Glycolysis

G. ADP and P

H.Oxygen

I. Intermediate

Explanation:

The answer to the statements are:

A. NADHB. Pyruvic acidC ATPD. NADE . GlucoseF. GlycolysisG. ADP and PH.OxygenI. Intermediate

What are cellular respiration and its purpose?

Cellular respiration is the system that occurs inside the mitochondria of organisms (animals and plants) to break down sugar inside the presence of oxygen to release strength in the form of ATP. This system releases carbon dioxide and water as waste products.

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In the scientific method An educated guess or suggested solution to a problem is known as which of the following

Question 1 options:

guessology


dependent variable


Hypothesis


conclusion

Answers

Answer:

Hypothesis

Explanation:

This is a guess that is not that very probably correct so its just suggested, from approximating things

match the various types of intrusive rock.​

Answers

Answer:

1. d!ke

2. sill

3. batholith

4. laccolith

Explanation:

hope this helps

How are the final products of photosynthesis related to the final products of cellular respiration?

A) They are identical
B) they are the starting materials for cellular respiration
C) they are also the final products for cellular respiration
D) they convert chemical energy into light energy

Answers

Answer:

B) they are the starting materials for cellular respiration

Carbon dioxide is used by plankton during photosynthesis to make organic molecules containing ( lead / carbon / argon / chlorine )

Answers

Answer:

Carbon

Explanation:

Photosynthesis is a process carried out by the cells of autotrophic organisms in order to synthesize their own food in form of sugars (glucose). As rightly stated in this question, Carbon dioxide (CO2) is a major ingredient for this process to occur. Inorganic CO2 enters an organism like plankton and is used to make organic molecules.

The organic molecules produced via the photosynthetic process are in form of sugar (glucose) i.e. C6H12O6 whose principal elemental component is CARBON. In other words, the organic molecules contain carbon in their structure, got from the CO2 source.

The space between soil particles is known as which of the following?
O pores
O apertures
O holes
orifices

Answers

Answer:

pores

Explanation:

edge intro to AG

Answer:  The correct answer is pores

Explanation:  This answer has been confirmed correct.

HELP NOW!
Explain how osmotic conditions would lead to cell lysis.
will give brainliest!!

Answers

Cytolysis, or osmotic lysis, occurs when a cell bursts due to an osmotic imbalance that has caused excess water to diffuse into the cell. Water can enter the cell by diffusion through the cell membrane or through selective membrane channels called aquaporins, which greatly facilitate the flow of water.
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