A student observes the model and claims that the total mass of the reaction is conserved. Is the student's claim correct? Why or why not? A No, because the arrangement of atoms is different in the reactants and products. B Yes, because the reactants and products are made of atoms of the same elements. C Yes, because the number of atoms of each element is the same on both sides of the equation. D No, because the total number of atoms in products is greater than the total number of atoms in reactants.

Answers

Answer 1

C.  Yes, because the number of atoms of each element is the same on both sides of the equation.

Due to the law of conservation of mass, any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity can neither be added nor be removed.

hope this helped!


Related Questions

What role does gene expression play in determining traits on an offspring? Explain your response

Answers

genes correspond to one or more DNA sequences that carry the coding information required to produce a specific protein, and that protein in turn carries out a particular function within the cell.

Gene expression has been defined as the process where the genes produce proteins and RNA. They determine the traits in offspring as various types of proteins pass from parent to offspring.

What is gene expression?

Gene expressions are said to be the expression of the genome products in the cell that undergoes the process of transcription and translation to produce the RNA and protein structures that are responsible for providing the phenotype and genotype.

The genes code for the RNA and protein that regulates the amount and type of proteins to be expressed in the offspring that are passed from a parent through reproduction methods. They are hereditary patterns that vary in some amount to make two individuals different from each other.

Therefore, gene expression plays an important role in determining the trait in offspring.

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You have been provided with a non-polar liquid and are trying to determine whether
it is hydrophilic or hydrophobic. You place one milliliter of the substance into a
beaker filled halfway with water. Describe what will happen next.

Answers

Answer:

Explanation:

Non-polar liquids are liquids that have covalent bonds in which the shared electrons are shared equally. The molecules of these liquids are repelled by the molecules of water and hence do not dissolve in water. Thus, non-polar liquid are hydrophobic (water dislike/insoluble in water).

When one milliliter of the substance is placed into a beaker filled halfway with water, the substance will be seen "compact" (not dissolving nor interacting) in the beaker of water.

Polarity is defined as the separation of electric charge in a molecule or having an electric dipole moment due to the difference between negative and positively charged ends.

In the given experiment when one milliliter of the substance into a beaker is filled halfway with water, the substance will be seen as coagulating or not dissolving in the water.

The non-polar are the compounds or liquids that do not dissolve in the water. The non-polar molecules are the molecules, which are attracted to the alike molecules, rather than the water molecules.

The non-polar compounds have covalent bonds, in which the electrons are shared among the atoms of the compound.

The molecules of these liquids are repelled in the presence of water or are hydrophobic. These liquids do not dissolve in water.

Therefore, the liquid is hydrophobic.

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What types of solid waste do you produce in your home ?what could be done to each type and what goes to the disposal site or dumpsite

Answers

Answer:

Types of solid watse we produce in your home is plastic cups, metal forks and spoons, and also glass plates. We could recycle these items, so they can become other new items when we are finished.

Solid waste are described as abandoned waste materials resulting from human and chemical activities. Solid wastes could include used plastic materials, rubber, metals, glass and other materials classed as useless.

In Homes, solid wastes usually include used plastic, shattered glass, metal objects and so on.

Plastic wastes and metals could be recycled and refined to make rubber and aluminium spare parts, hence, serving as raw materials.

Therefore, since solid materials take very long to Decay, hence recycling of the waste and their use in organic products are always good means of disposal.

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Why is a red laser pointer an example of a poor blackbody radiator?
A. It glows less brightly as electromagnetic radiation is released.
O B. It gives off a range of wavelengths of electromagnetic radiation.
C. It gives off only one wavelength of electromagnetic radiation,
D. It keeps the same temperature and gives off no electromagnetic
radiation

Answers

A red laser pointer is a poor blackbody radiator because it emits electromagnetic radiation at only one wavelength. So, the correct option is C.

What is blackbody radiator?

Depending on its temperature, a blackbody radiator is an object that radiates at different wavelengths. Blackbody radiation is the radiation that a blackbody radiator emits, and it exhibits a certain pattern known as Planck's law.

A red laser pointer, on the other hand, produces a narrow, focused beam of light at a specific wavelength, typically around 650 nanometers. This indicates that, unlike a blackbody radiator, a laser pointer does not generate radiation at different wavelengths. A red laser pointer is therefore a subpar blackbody radiator.

Therefore, the correct option is C.

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A glucose molecule is to carbohydrates as a ___ is to nucleic acids.

Answers

Answer:

nucleotides

Explanation:

glucose is a monomer of carbohydrates so we just have to figure out what the monomer for a nucleic acid is.

As a Nucleotide is to nucleic acid

16 An organism with a cell wall would most likely be unable to take in materials through
A) osmosis
B) facilitated diffusion
C) active transport
D) endocytosis​

Answers

Answer:

endocytocis

Explanation:

I am pretty sure that is B but it can also be D

A segment of DNA has this sequence:
ATA GCA CAT
What is the mRNA sequence transcribed from this segment?
OTAT CGT GTA
O UAU CGU GUA
O TAT GGG GTA
O UAU CGT GTU

Answers

Answer: B: UAU CGU GUA CAU

Explanation:

UAU CGU GUA CAU is the mRNA sequence transcribed from this segment.

What is mRNA?

Single-stranded RNAs of the type known as messenger RNA, or mRNA, are used to make proteins. mRNA is created during transcription from a DNA template.

The function of mRNA is to transport protein information from DNA in a cell's nucleus to the cytoplasm, or watery interior, where the machinery responsible for making proteins reads the mRNA sequence and converts each three-base codon into an amino acid that belongs in a protein chain that is expanding.

Therefore, UAU CGU GUA CAU is the mRNA sequence transcribed from this segment.

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2. Which type of stem cell gives rise to red and white blood cells?
A. Endothelial
B. Epithelial
C. Hematopoietic
D. Mesenchymal
Any help is appreciated!!

Answers

endothelial is the ans dud

The type of stem cell that gives rise to red and white blood cells is called a hematopoietic stem cell and is present in Option C, as hematopoietic stem cells are multipotent stem cells that reside in the bone marrow.

What is a hematopoietic stem cell (HSCs) ?

Hematopoietic stem cells are a type of stem cell that give rise to all types of blood cells, including red blood cells, white blood cells, and platelets, and they reside in the bone marrow and are responsible for replenishing the body's blood cells. They have the ability to differentiate into a variety of cell types, and the process by which HSCs differentiate into the different types of blood cells is tightly regulated by various factors, including growth factors.

Hence, the type of stem cell that gives rise to red and white blood cells is called a hematopoietic stem cell and is present in Option C.

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Different plant species require different amounts of direct sunlight in order to flower. A student designed an experiment to determine the length of exposure to direct sunlight necessary for a specific plant species to produce flowers. The student collected the data below.


0 hours, 0% with flowers


9 hours, 0% with flowers


1 hour, 0% with flowers


5 hours, 90% with flowers


3 hours, 80% with flowers


7 hours, 10% with flowers


Identify the:

independent variable-

dependent variable-

control group-

experimental group-

constant-

Answers

Answer:

Independent variable: LENGTH OF EXPOSURE TO DIRECT SUNLIGHT

Dependent variable: PRODUCTION OF FLOWERS

Control group: THE GROUP OF PLANT THAT WASN'T EXPOSED TO SUNLIGHT i.e. 0 hours

Experimental group: THE GROUP OF PLANTS THAT WERE EXPOSED TO SUNLIGHT

Constant: THE SAME PLANT SPECIES

Explanation:

Independent variable is the variable that the experimenter changes or manipulates in an experiment. In this experiment, the experimenter exposes the specific plant species to sunlight at different length of time, hence, the LENGTH OF EXPOSURE TO DIRECT SUNLIGHT is the independent variable.

Dependent variable is the variable which is measured in an experiment. In this experiment, the measured/dependent variable is the PRODUCTION RATE OF FLOWERS by the plant species.

Control group is the group in an experiment that does not receive the variable being tested. In this experience, the control group is THE GROUP OF PLANT THAT WASN'T EXPOSED TO SUNLIGHT i.e. 0 hours

Experimental group is the group of am experiment that is exposed to the experimental treatment (sunlight). In this case, the experimental group is THE GROUP OF PLANTS THAT WERE EXPOSED TO SUNLIGHT.

Constants are variables of an experiment that must be kept unchanged for all groups throughout the experiment in order not to affect the experiment's outcome. In this experiment, the constant is THE SAME PLANT SPECIES used,

Answer this question.
An on-going research study has been tracking the dietary preferences of gorillas in the wild. Researchers are hoping to formulate a diet for gorillas in captivity that mimics those living in their natural habits. By reproducing the preferred diet, researchers hypothesize that the eventual release back into the natural habitat will be an easier transition for the gorillas.

Researchers are using various methods to make observations and collect data about the feeding habits of gorillas in the wild. Which method would be classified as direct observation?
A) Counting and classifying the debris in the area where the gorillas live.
B) Observing the gorillas from a protected location and recording what they eat.
C) Surveying the natives in the area about the diet of the local gorilla population.
D) Photographing the habitat of the gorillas in a before and after scenario and seeing what is missing from the after photograph.

Answers

Answer:

Hi, I think it is A) Counting and classifying the debris in the area where the gorillas live.

Explanation:

I am sooooo sorry if I got it wrong! Have a nice day and good luck! :)

i’m almost positive it’s A

Plzzz helpp!!
What earthquake
feature lies directly
below the epicenter?

Answers

Probably the magnitude

For rats, black (B) is dominant over white (b), and short hair (L) is
dominant over long hair (). A heterozygous black, short hair female is
crossed with a white, short hair male. What is the probability of the
offspring to have black, short hair?
2/16
4/16
6/16
9/16

Answers

Answer:6/16

Explanation:the probability of a offspring to have black hair chances are 6/16


I need help asap!! Please
It’s due in a little bit

Answers

Answer:

explain please????!??????!

List the six kingdoms, characteristics of each, and an example of an organism that belongs in each kingdom.

Answers

Answer:

Plants, Animals, Protists, Fungi, Archaebacteria, Eubacteria.

Explanation: Plant=flower

Animal=deer

Protists=giant kelp

Fungi=mushroom

Archaebateria=Aeropyrum pernix

Eubacteria=E. coli

;)

The six kingdom of the organisms are Plants, Animals, Protists, Fungi, Archaebacteria, Eubacteria.

What is kingdom?

The eight major taxonomic ranks of biological classification. A domain is made up of one or more kingdoms.

Animals, plants, fungi, protists, and archaebacteria and eubacteria are the 6 kingdoms of living things.

Bacterial Kingdoms and Archaean Kingdoms: These are prokaryotic ones and not posses a well developed nucleus. Example bacteria.Protists: These are eukaryotic which can be unicellular or multicellular. Example: amoebaFungi: These are also eukaryotic having single or many cells including yeast. They are not capable of photosynthesis.Plantae: These are photosynthetic eukaryotes which are primary producers. Example all plants.Animalia: these are heterotrophic eukaryotes which include all animals.

Thus, these are the six kingdoms including their characteristics.

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The following are all examples of changing motion EXCEPT

a
A golf ball stops after rolling up a hill.
b
A race car travels around an oval track at a constant speed of 180 miles per hour.
c
A bowling ball travels in straight line down a bowling alley at a constant 3 meters per second.
d
A ball rolls against a wall and bounces away at 3 meters per second.

Answers

Answer:

It is B

Explanation:

I had this on my test last week

c. At_____sweat and sebaceous glands become more active.​

Answers

Answer:

salt

Explanation:

Help!!!
What are the tools and technology used to carry out PCR tests ????

Answers

Answer:

Equipment: Thermal cycler is a technology that can change the temperature of the DNA segment. A thermal cycler can raise and reduce the temperature quickly. This allows the PCR process to happen over and over again.

Tools:

Taq polymerase build complementary DNA strands

DNA primers attach to each end of the target sequence

DNA nucleotides or dNTPs make up the DNA

Explanation:

(NEED HELP ASAP) True or False: Some food molecules (fiber, starch, glucose,etc.) that enter the body never leave the digestive system?

Answers

Answer:

True

Explanation:

Summarize the three main reasons why energy is wasted at each trophic level. (use your own words)

Answers

Answer:

Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level. ... A food chain can usually sustain no more than six energy transfers before all the energy is used up.

Which factor would have the greatest influence on the southern migration of animals living in the northern hemisphere

Answers

Answer:

Animal migration is the relatively long-distance movement of individual animals, usually on a seasonal basis. It is the most common form of migration in ecology. It is found in all major animal groups, including birds, mammals, fish, reptiles, Many of these migrations are north-south, with species feeding and breeding in.

10 common wetland plants native to Georgia

Answers

Answer: its Georgia

Exampl:

what element has 7 protons and 5 neutrons?

Answers

Nitrogen because it has an atomic number of 7 and also 7 protons

Human Genome researchers discovered transposons. What are these structures?

Answers

Answer:

Transposon is a fragment or sequence of DNA that can move unregulated to any point in the cell genome, leading to a phenomenon called transposition.

Explanation:

Transposon is the name of what was previously known as jumping genes, being a DNA sequence capable of moving freely within a DNA molecule. A transposon can produce mutations by translocation, altering the total amount of nucleotide in DNA molecule.

Genetic changes that are linked to evolutionary processes can be due to the existence of transposons, since they can even induce chromosomal changes.

How do animals return water to their environment from their bodies?

Answers

Answer:  Animals excrete water by respiration and by passing urine.

what is the passing of traits from parents to offspring?

Answers

Answer: Heredity

More information about Hereditary:
The characteristics (genotypes and phenotypes) can be predicted by using a Punnet Square.
Parents give off their genetic traits to give genetic traits to the offspring.

I hope this helped! :)

Gerry's Genotype is heterozygous Rr. BillyBob is heterozygous Ss. Complete the Punnett square below to show the possibilities that would result if Billy Bob & Gerry had children.

Please help me ​

Answers

Answer:

       S    s

R     SR   Rs

r      Sr     rs

pls help me pls idk how to do this​

Answers

Hey There!_____________________________________Answer:_________________________________________________WATER CYCLE:

1- Evaporation:-

Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase. For more evaporation, the area that surrounds the surface of the water must be less humid i.e. it should not already be concentrated have the water vapors. For the evaporation we need to increase the temperature of the molecules of water on the surface, which is caused by the Sunlight.

__________________________________________________________

By keeping that in mind,

Drag the box

LIQUID --> GAS

and

WATER TURN INTO VAPOURS AND RISES UP IN THE SKY.

also

ENERGY FROM SUN CAUSES WATER TEMPERATURE TO RISE

_____________________________________2- Condensation:-

Condensation is the change of water from its gaseous form (water vapor) into liquid water.

__________________________________________________________

Keeping that in mind,

Drag box

GAS ---> LIQUID

and

WATER VAPOURS COOL IN THE SKY AND TURNS INTO CLOUDS.

_____________________________________3- Precipitation:-

Anything that is falling from the sky is precipitation. It could be rain, hail, snow, or sleet.

_________________________________________________________

Keeping that in mind,

Drag the box

WATER VAPOURS FALL ON THE EARTH IN THE FORM OF RAIN SNOW HAIL OR SLEET.

_____________________________________Best Regards,'Borz'

How many different kinds of atoms does an element contain?

A) 2
B) 1
C) 8
D) 4

Answers

Answer:

an element contain 2 atoms

Answer: Your just a kid who doesn't know anything

What type of bonds attracts water molecules
to each other and to other substances?

-covalent bonds

-double bonds

-hydrogen bonds

-ionic bonds

Answers

Answer:

Hydrogen bonds

Explanation:

hydrogen bonds are slightly positive which is attracted to the slightly negative charge of oxygen.

Before deciding on a medium to use, what should the presenter do?(1 point)

compare the strengths and limitations of each medium

decide on the number of still or moving images they need

know the age and size of their audience

chose the form they feel most comfortable with

Answers

Answer:

♡ madeline here! ♡

- -it's c ʕ •ᴥ•ʔ

hope I could help! have a great day

✧・゚: *✧・゚:・゚✧*:・゚✧・゚: *✧・゚:・゚✧*:・゚✧

.

Explanation:

Answer:

A) Comparing the strengths and limitations of each medium

Explanation:

That's what is said on the lesson and this is 100% right!

Other Questions
Find the midpoint of the segment with the following endpoints.(-4,-9) and (4, -1) PLS HELP... WILL MARK BRAINLIEST!!!Which of the following was a domestic challenge faced by Sam Houston?a. a new court systemb. lack of public landc. Native American raids of Texas settlementsd. potential invasion by Mexico Two of the angles of a triangle are 65 What is the measure of the third angle? O 65 O 130 O Cat they O 50 Which statements describe Mongol rule of China? Group them in the box below.the highest jobs in the government were held by Chinese officials trade flourished use of gunpowder adopted from EuroChinese officials maintained rule in the provinces Mongol customs imposed on all of Chinapeace and order established in the empireThe Mongol Empire Can Anybody help please? I need help here plz What role does the Automated Surface Observing Systems (ASOS) play in weather forecasting? PLEASEEE HELPPPPPPP :)))))))) Select the interjection in the sentence.These cookies that my mom bakedare delicious, huh? plz solve anyone question Select the scenario below that demonstrates sampling bias. Select the correct answer below: A. Justin wants to estimate the ethnic background distribution of residents of his town. He collects data from 1000 randomly selected town residents by using a random number generator. B. To estimate the mean salary of accountants at her bank, Patricia collects data by recording the salaries of all accountants included in 12 randomly selected bank sites. C. Elizabeth wants to estimate the mean vacation days of coworkers at her company. She collects data by selecting a random group of coworkers within her department. D. To estimate the mean satisfaction level of coworkers at her company, Annie collects data by recording the satisfaction level of every 25th coworker on the list of coworkers after a randomly selecting first coworker. 1. A watch with a regular price of $85.00 is now on sale with a discount of 20%. Calculatethe sale price of this watch. Describe your strategy for finding the sale price QUESTION 15Which grouping represents all non profit organizations?United Way, Red Cross NAACPCaesars, Bally, Borgota and Boys & Girls ClubsNike, Nordstrom, Kohls and KelloggsFeed America, Dress for Success, American Civil Liberties Union and McDonalds From The Beast by Ben B. Lindsey and Harvey J. OHigginsWhich of the following Best describes the authors attitude toward the subjects of paragraph 1?A. apathyB. disdainC. outrageD. contentionE. malice Please help I need this right now It is assumed that the test results for a class follow a normal distribution with a mean of 78 and a standard deviation of 36. If you know that a student's grade is greater than 72, what is the probability that it is greater than 84? What do I know? What do I want to find out? What do we expect the answer to be? How do I go from what I know to what I want to find? Does this answer seem reasonable? find answer in terms of pi A store bought a shirt for $20 dollars.They sold it for some $23 dollars.What is the percent of change here? If m Pls someone help I am in a hurry:(2pq + 3) + (pq + 6p2 + 3)