CAN SOMEONE PLEASEE HELPPP
Samira watched a demonstration in which a scientist combined two substances in a sealed container and analyzed the results. The ending substances did not look the same as the starting substances.

Samira was given a diagram with the repeating groups of atoms that make up the starting substances, plus information about the properties of the starting and ending substances. She created a model of the repeating groups of atoms that might make up the two ending substances.

A.) Does her model correctly show why the properties of the ending substances are different from the properties of the starting substances?

B.) Describe what could be correct or incorrect about her model

Look at the diagram below then write your answer to question 13 part "A" and "B".
THIS IS NOT A MULTIPLE CHOICE QUESTIONS YOU NEED TO ANSWER BOTH QUESTIONS
thanks

Answers

Answer 1

Answer:

hope its not to late..............Samira's model correctly demonstrates how the properties changed with the rearrangement of the atoms. However not all atoms are accounted for. There is a missing reactant. Samira's model correctly demonstrated how the atoms in two compounds reacted to form two new products. However, the elements present in the reactants side should be the elements that make up the new products in the product side. But as the diagram shows, Sameera has mistakenly added a new element to one of her products which will be wrong.

Explanation:


Related Questions

PLZ HELP!

What codes for proteins?
(A.) ​RNA​
(B.) DNA​
(C.) amino acids
(D.) polypeptides

Answers

Answer:

The answer is RNA

Explanation:

Each sequence of three nucleotides, called a codon, usually codes for one particular amino acid. (Amino acids are the building blocks of proteins.) A type of RNA called transfer RNA (tRNA) assembles the protein, one amino acid at a time.

Answer:

(A.) RNA

Explanation:

The type of RNA that contains the information for making a protein is called messenger RNA (mRNA)

write a sentence that describes how the flow of liquid with low viscosity differs from the flow of a liquid with high viscosity

Answers

[] Hello ! []

Answer:

Fluids with low viscosity have a low resistance and shear easily and the molecules flow quickly; high viscosity fluids move sluggishly and resist deformation. Some liquids, like pitch, glass and peanut butter, have such high viscosity they behave like solids.

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I hope this helped! Brainliest appreciated :D

⊕If this answer is wrong or displeases you, please tell me in the comments I would like to know.⊕

Thank you have a wonderful and blessed day!

-- Juri Davis

Answer:

Fluids with low viscosity have a low resistance and shear easily and the molecules flow quickly; high viscosity fluids move sluggishly and resist deformation. Some liquids, like pitch, glass and peanut butter, have such high viscosity they behave like solids.

Explanation:

On the following periodic table of elements, what do these colors represent?

blue - -Nonmetals
red- -Metals
yellow- -Metalloids

Answers

Answer:

blues are nonmetals (gas)

yellows are metalloids (liquids)

reds are metals (solids)

Explanation:

good luck, hope this helped <3

nonmetals are gas metalloids are liquids and metals are solid

Groups/Families are arranged vertically in different columns on the periodic table of elements. These groups/families have similar properties and chemical behaviors.

True

False

Answers

This statement is true.
-Hope this helps! :)
This is true:)
Hope it helps u

What two enzymes are used during replication and what does each do?

Answers

Answer:

The two enzymes that are used during DNA replication is helicase and polymerase. Each enzyme has distinct role that made it a vital part of the replication. In the course of DNA replication, the initial stage is to unzip the double helix structure of the DNA molecule by the enzyme helicase, which breaks the hydrogen bonds that holds the complementary bases of DNA.

Moreover, the DNA polymerase has the ability to exactly copy a DNA template. This enzyme binds to the leading strand and then adding a new complementary nucleotide bases to the DNA strand. In addition, it catalyzes the joining of deoxyribonucleoside 5′-triphosphates (dNTPs) to form the increasing DNA chain.

Explanation:

helicase and polymerase

Describe the change that you made that led to the decrease in the size of the greenleaf population. Explain why the change led to a decrease in the greenleaf population size.
(no science option again)

Answers

Answer:

DO YOU STILL NEED HELP?

Explanation:

Less water and worse weather for photosynthesis will make the leaves not turn out green and somethings with sunlight


Why do scientists track virus mutations and how might tracking these variants be helpful in preventing and treating the virus?(coronavirus)

Answers

Answer:

Different variants = certain symptoms and effects of the virus that cannot be prevented by the "basic" or "original" vaccine. So tracking the different variants would allow scientists to also account for those effects when creating a 2.0 vaccine or treatment.

Scientists track the coronavirus and its mutations around the world to study and fight it properly.

The coronavirus is a virus that became a pandemic during 2020 that spread throughout most of the planet, infecting millions of people. People who acquired the virus had symptoms of respiratory infection such as

CoughTrustworthyBody painChillLoss of smell

In its expansion, the virus mutated into different variables, this meant a challenge for the scientists in charge of combating it because its variables could have characteristics of the first variant, making it more difficult to eliminate.

Therefore, the scientists emphasized protection to avoid contagion and the variants that emerged were studied in depth to verify that the treatments that were being developed worked for all the variants.

Learn more in: https://brainly.com/question/15682245

5-8 complete sentences paragraph, explaining why you would want to make a change to help our ecosystems. (including a change you think would help our ecosystems)

Answers

Global warming affects many processes in biological ecosystems. Different species of flora and fauna change their habitats and geographical areas according to climate change and specific geographical environments. Areas of occurrence of specific species, for example insects in terrestrial areas and fish and arthropods in the seas and oceans, change. Bird habitats change, so migrations of some bird species may also be subject to modification. In the situation when forest areas dry out and turn into steppes and deserts, changes in natural habitats and areas of occurrence of species change and concern simultaneously many species of flora and fauna.

According to this climate graph, which month is the average temperature the lowest in Santa Cruz?



January


March


May


July

Answers

Answer:

january

Explanation:

I’d say the answer is january

In order to expand agriculture and urban areas to meet increased demand for growing populations, water supplies often have to be diverted. In three to five sentences, construct a potential chain of consequences for what could happen when water is diverted from large bodies like lakes and rivers.

thank u :]

Answers

answer:

lets say we have a big lake with a lot of animals and you want to move the water to somewhere else. A lot of animals and fish, frogs will have to find a new home!

Help me with this, please. Thanks

Answers

Answer ———hardness ...........
The correct answer is hardness hopes this helps

Please answer the question in the image provided

Answers

Answer:

Gold

Explanation:

In order to find the density, just divide the mass by volume using the formula d=m/v.

d = m/v

d = 38.6/ 2cm^3

19.3 = 38.6/2cm^3

Look back at your chart and see which substance is 19.3, which is gold

The answer would be gold

What kind of chemical reaction occurs when fossil fuels and biomass are burned? What is produced in addition to energy?

please answer the second part of the question asking, "What is produced in addition to energy?"

Answers

Carbon dioxide is produced

NOOOOO LINKKKKSSSWhat biome do we live in?
A. Tropical forests
B. Temperate forests
C. Grasslands
D. Mountains
E. Oceans
F. Wetlands

Srry bout the last one

Answers

Answer:

it depends where you live really... lol

A tropical forests you know the vibes

Write an explanation of the relationship between genes, proteins, and traits for the Blue Lobster.

You may think of a lobster as red, but about 1 in every 2 million lobsters is blue! This blue color is the result of a mutation in the lobster’s genes. The mutation causes the lobster to make an extra amount of a protein called astaxanthin. This protein is usually important for the red color that you see when the lobster is cooked, but in excess amount, makes the lobster blue.

Answers

Answer: The lobster's blue coloration is a result of a genetic defect that causes the lobster to produce more of a certain protein than normal.

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