CER: Molecules and Extended Structures
How can both of these samples be pure phosphorus?
State your claim. Make sure your claim fully explains how the two samples can both be pure phosphorus. Summarize the evidence you have gathered to support your claim and explain your reasoning.

Answers

Answer 1

Answer:

If impurities are removed from the samples, pure phosphorus will be obtained.

Explanation:

Both of these samples be pure phosphorus if the atoms and other impurities are removed from chemical as well as physical means. Pure phosphorus means that there is only atoms of phosphorus present but pure phosphorus is not available because of its reactivity so for that reason it reacted with the oxygen present in the air and formed phosphate molecules and stabilize itself.


Related Questions

In leopards, being shy (S) is dominant to being sassy (s), and being timely (T) is dominant to being tardy (t).
A female leopard that is
heterozygous for both the S and I trait mates with a male leopard that is also
heterozygous for both traits. Both the S and I traits assort independently from one another.
What is the probability that they will have an offspring that is sassy and timely?

Answers

The probability that the leopards will have an offspring that is sassy and timely is 3/16

This question involves two different genes. The allele for being shy (S) is dominant to the allele for being sassy (s) in the first gene while the allele for being timely (T) is dominant to being tardy (t).

According to this question, A female leopard that is heterozygous for both the S and T traits i.e. SsTt mates with a male leopard that is also heterozygous for both traits i.e. SsTt

The two heterozygous leopards (SsTt) will produce the following gametes: ST, St, sT, and st

Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:

S_T_ = shy, timely (9)S_tt = shy, tardy (3)ssT_ = sassy, timely (3)sstt = sassy, tardy (1)

According to this question, the probability that the two leopards will have an offspring that is sassy and timely is 3/16.

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Plants and batteries both store

mechanical energy
electrical energy
chemical energy

Answers

They both store chemical energy

Patients generally report conscious awareness of posthypnotic suggestions. Please select the best answer from the choices provided T F

Answers

Answer:

false

Explanation:

edge 2020

Conscious awareness of posthypnotic suggestions is a false statement because it creates a subconscious.

What are posthypnotic suggestions?

The directive was given to the subject during a hypnotic trance that must be carried out once the subject awakens.

A post-hypnotic suggestion is essentially a specific directive to be followed after the hypnotherapy session to the subconscious.

An illustration of this would be going to a hypnotist for help with weight reduction and having the suggestion made that every time you feel like a sweet sort of meal, you will feel like drinking some water instead" ingrained in your subconscious.

Therefore posthypnotic suggestions of having conscious awareness are false statements.

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The internal urethral sphincter is comprised of

Answers

Answer:

1) the internal urethral sphincter (IUS), which consists of smooth muscle and is continuous with the detrusor muscle and under involuntary control, and 2) the external urethral sphincter (EUS), which is made up of striated muscle and is under voluntary control.

Explanation:

Hope this helped!

How are aquifers connected to the water cycle?

Answers

Answer:

At a certain depth below the land surface, the spaces between the soil and rock particles can be totally filled with water, resulting in an aquifer from which groundwater can be pumped and used by people. Some of the precipitation that falls onto the land infiltrates into the ground to become groundwater.

Explanation:

is what i found on google.

hope this helps!

Which best defines matter?
A. Anything that takes up space and has mass
O B. Anything in the atmosphere
C. All the living things on the planet
O D. All solid objects that can be seen

Answers

Answer:

A. Anything that takes up space and has mass

Explanation:

Matter is often described as something that takes up space and has mass. Matter can be in the form of a solid, liquid, or gas, which eliminates all of the answer choices besides A.

Hope this helps :)

What does photosynthesis and cellular respiration have in common?

Answers

They both reproduce and have to do something with life

Describe the way convection works and how it might work within the earth? -geology question

Answers

Answer:

Magma in the Earth's mantle moves in convection currents. The hot core heats the material above it, causing it to rise toward the crust, where it cools. The heat comes from the intense pressure on the rock, combined with the energy released from natural radioactive decay of elements.

Explanation:

Scientists study salamanders and their ability to regenerate lost legs and tails. What additional information is essential for scientists to understand in order to apply this ability to humans who have lost limbs?

how quickly the body parts regenerate
how similar salamanders are to humans
which body parts are most often lost
which genes control regeneration

Answers

Answer:

The answer could be:

(/) which genes control regeneration

(/) how similar salamanders are to humans

(x) how quickly the body parts regenerate  (salamanders' size and form does not equate to human beings)

(x) which body parts are most often lost  (it was already given that it's legs and limbs)

Answer:

d

Explanation:

Cause i am the smartest

9. What type of bond is pictured in the image below?

a. covalent bond
b. ionic bond
c. metallic bond
d. electron bond

ONLY 9

Answers

Answer:

c. metallic bond

Explanation:

Metallic bonding, unlike other forms of atomic bonding, involves delocalized elections. The negatively charged electrons form a "sea" around metal cations. Electrons within the valence shells of metals are only held loosely within their molecular orbits- the metals are held together due to the strong attraction between these delocalized electrons and positive nuclei.

The electrons are typically described as mobile, free, and delocalized. These traits are responsible for several metallic properties such as:

electrical conductivityheat conductivityelectronegativitymalleability

Answer: Number 10 is also C

Explanation:

What is the relationship between boiling point and pressure?

Answers

The boiling point of a liquid is the temperature at which its vapor pressure is equal to the pressure of the gas above it. The normal boiling point of a liquid is the temperature at which its vapor pressure is equal to one atmosphere. Microscopic view inside a bubble in boiling water.

Why is meiosis important in maintaining genetic diversity?

Question 6 options:

A Meiosis creates diversity by cutting each chromosome exactly in half.


B The two different chromosomes of the organism producing the sex cell (egg or sperm) are mixed up during crossover, creating a new combination of alleles.


C It creates sex cells (eggs or sperm) that have exactly the same alleles (version of a gene) as the parents.


D The chromosomes in meiosis are copied so they are exactly the same as the organism producing the gamete, except they have just one copy.

Answers

Answer:

We now know that meiosis is the process of chromosomal reduction which allows the production of haploid germ cells necessary for sexual reproduction. Meiosis is furthermore important for its role in enabling genetic diversity and facilitating the repair of genetic defects through recombination.

Explanation:

Brainliest please?

Meiosis is a specialized form of a cell division in which number of chromosomes is reduced to half. The reduction in chromosome number is achieved by one round of DNA replication and two rounds of chromosome segregation.    

Meiosis produces genetic variation by the process of recombination.Recombination occurs when two molecules of DNA exchange pieces of their genetic material. The process of recombination occurs during the prophase stage of meiosis I. In meiosis, crossing over occurs between the non-sister chromatids in a homologous pair (one from each parent) of chromosomes.

The correct answer is option B. The two different chromosomes of the organism producing the sex cell (egg or sperm) are mixed up during crossover, creating a new combination of alleles.

Other options-

A. Meiosis creates diversity by cutting each chromosome exactly in half - incorrect .In meiosis the chromosome number is reduced to half.

C. It creates sex cells (egg or sperm) that have exactly the same alleles (version of a gene) as the parents-incorrect. The sex cells produced are not genetically identical to the parent cell.

D. The chromosome in meiosis are copied so they are exactly the same as the organism producing the gamete, except they have just one copy-incorrect. In meiosis the chromosomes are not exactly copied.

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What conclusion can you draw if a sample a tourmaline scratches a sample of kyanite, but kyanite cannot scratch tourmaline?

Answers

That tourmaline is softer the kyanite



Identify the control group for the rat experiments described in the Paralytic Shellfish Poisoning Scenario.

Answers

Answer:

This question is incomplete

Explanation:

This question is incomplete. However, the control group of an experiment is the group in which every other group of the experiment is firstly compared with. This is because control groups are usually not administered with any form of treatment. Thus, the control group of the experiment/scenario referred to in the question will be the group that did not receive any form of treatment and was probably given water or placebo.

Muscle fibers contain which of the following?
A.
Sarcolemma
B.
Sarcoplasm
C.
Multi-nuclei
D.
All of the above

Answers

Answer: D

Explanation: Muscles are made of sarcolemma (membrane), sarcoplasm(tissue), and they have multi nuclei inside of them.

Eukaryotic cells do NOT have a cytoplasm true or false

Answers

Answer:

False

Explanation:

False is the correct

Sheela wants to demonstrate the importance of photosynthesis to plants and the other living organisms that eat plants. She models the process of photosynthesis that is specifically involved in the production of sugars.

Which process in the light-independent reactions of photosynthesis is she modeling?
the production of oxygen
the production of glucose
the production of carbon dioxide
the production of water

Answers

Answer:

the production of glucose

Explanation:

sugar=glucose

Request:

(Brainliest plzzz)

In this process, the light-independent reactions of photosynthesis are she modelling, and the production of glucose. Thus, option "B" is correct.

What is the chemical reaction of photosynthesis?

The chemical reaction of photosynthesis is given as follows;

6CO₂(g) + 6H₂O(l) + Energy from light → C₆H₁₂O₆(s) + 6O₂(g)

Six molecules of gaseous carbon dioxide (CO₂) combine with six molecules of liquid water (H₂O) in the presence of energy from Sunlight  to produce  one molecule of solid glucose (C₆H₁₂O₆) and six molecules of gaseous oxygen (O₂)

Thus, option "B" is correct.

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a constant net forced of 150 N is exerted to accelerate a cart from rest to velocity of 45 m/s in 8 seconds.what is the mass of the cart?​

Answers

Answer:

The mass of the cart is 26.7 kg.

Explanation:

To find this answer use the formula for acceleration first to find how fast the object had to be acccelerating to gain a velocity of 45m/s in 8 seconds flat.

Here's the formula for acceleration:

a = V- V₀ ÷ T (Wher V = final velocity; V₀ = Initial velocity, and T = time)

Plug all known values into the equation and you get -

a = (45m/s - 0m/s) ÷ 8 , which works out to 5.625 m/s²

Once you have this value then you place it into the equation for finding an object's mass, and that formula is:

M = [tex]\frac{F}{a}[/tex]  or M = [tex]\frac{150N}{5.625m/s^{2} }[/tex]

This works out to  26.6667 kg or approx. 26.7 kg if you are asked to round it to three significant figures.

When a bee visits a flower for sweet, sweet nectar, the plant's gametes are also spread to anoher plant. What kind of symbiotic relationship is this?

Answers

Answer:

Mutualism

Explanation:

Mutualism is a type of symbiotic relationship in which the two species of organisms involved benefit from one another i.e. the actions of one benefits the other.

In this question, a bee is said to visit a flower for sweet nectar, however, in the process of feeding on the flowers nectar, the plant's gametes are also spread to another plant by the bee. This is a type of MUTUALISTIC RELATIONSHIP because the plant is beneficial to the bee by providing food (nectar) while the bee also helps the plant by helping it pollinate.

how is atmospheric carbon in the form of CO2 converted into a molecule that is usable to all organisms?​

Answers

Answer:

The carbon-dioxide exists in the atmosphere, and it is dissolved in the water.

Explanation:

With the process of photosynthesis, it becomes organic, and by breathing, the organic gas goes back to carbon-dioxide.

The assimilation of carbon is the process when the carbon-dioxide converts to organic carbon with the help of living organisms. This organic carbon is then used for energy.

10. True or false: During the light-independent reactions, ATP and NADPH are used to make glucose.

True
False

Answers

Answer:

true

Explanation:

i think not sure

What 2 molecules can be used to determine blood type?

Answers

Red blood cell antigens determine your blood group

Answer: The antigens expressed on the red blood cell determine an individual's blood group. The main two blood groups are called ABO (with blood types A, B, AB, and O) and Rh (with Rh D-positive or Rh D-negative blood types).

What does an urn-shaped age pyramid represent?

Answers

Answer:

It represents young or rapidly growing population. In urn-shaped age pyramid, the number of reproductive individuals is higher than the number of pre-reproductive individuals. It represents declining or diminishing population with negative growth.

Which sugar or sugars are broken down by lactase? How do you know?

Answers

Answer:

Lactase breaks down lactose, the sugar in milk which is made of several parts.

Explanation:

what is the force of a rock falling of a cliff if it has a mass of 0.4 kg?

Answers

Answer:

impulse=force x time

force=mass x acceleration due to gravity

force=

impulse =3000 x 2.5= ( sorry i don't have a calculator right now so you must calculate this yourself)

I converted from kg to g because it is the standard.

Explanation:

Whats the answer? I need help

Answers

Answer:

Its 26 I'd assume sorry if I'm wrong it was kind of hard to read the question.

5.
20. Given the following scenario, choose the best answer that explains
why it happens: The blue dye in the water traveled up the petals of the
white flower.

Answers

As the flower takes water that it needs to survive, the dye in it has no more density so it goes up with the water dying everything in its path blue.

Which biomolecule provides the instructions to build enzymes?
A. Carbohydrates

B. Lipids

C. Nucleic acids

D. Proteins

Answers

The correct answer is D. Proteins

Enzymes are biological molecules (proteins) that act as catalysts and help complex reactions occur everywhere in life.

Hope this helps :D

Proteins are the building blocks of enzymes, and proteins are made up of amino acids that are linked together in one or more polypeptide chains. Therefore, option (D) is correct.

What are enzymes?

Enzymes are proteins that aid in the acceleration of metabolic processes, also known as the chemical reactions that take place in our bodies. They are responsible for the creation of some chemicals while also decomposing others. Enzymes are present in everything that is alive. Enzymes are something that are produced by our bodies spontaneously.

Enzymes regulate most biochemical reactions in animals, plants, and microbes, thus there are many examples. Animal digestive enzymes are well-known. Gastric juices break down food with the enzyme pepsin. Salivary amylase turns starch into sugar, starting digestion.

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Answer the question - Why is it important for scientists and engineers to work together to solve problems?

Answers

Answer:

it is important for them to work together because they can come together with the results form each person and see which is right and which is wrong and learn for their mistakes

Explanation:

Using cases to reason—Scientists and engineers often have to solve problems that others have confronted before. When scientists and engineers work to solve a problem, they may write up their experience as a case study for others to learn from. They will even write up the case study if their solution did not work.

Is it possible for it to rain at 0° F? (not snow)

Answers

im pritty sure no but my friend says yes somthing called frezzing rain sooooo

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