The atoms of certain element each contain 36 protons and 8 valence electrons. Which statement correctly identifies this element and describes its chmical reactivity?

Answers

Answer 1

Answer:

This question lacks options, the options are:

A The element is krypton, Kr, and it is not very reactive.

B The element is chlorine, Cl, and it is highly reactive.

C The element is krypton, Kr, and it is highly reactive.

D The element is chlorine, Cl, and it is not very reactive.

The correct answer is A

Explanation:

An atom is identified by its atomic number, which is the number of protons it contains. In this question, it is said that the atoms of a certain element each contain 36 protons. Using the periodic table, the element with atomic no. 36 is KRYPTON.

Also, Krypton posseses 8 valence electrons in its outer shell. In accordance to the octet rule, Krypton has no further need to engage in any chemical reaction to fill its electron shell because it is already filled (8 valence electrons). This accounts for the reason Krypton belongs to "Noble gases" and very unreactive.


Related Questions

The directions for making a protein

a. result in DNA.
b. are carried by DNA.
c. result in amino acids.
d. are carried by amino acids.

Answers

The directions for making a protein are carried by DNA. Option B.

How proteins are made

Genes are usually expressed in form of proteins and proteins are sequences of different amino acids. The amino acids are synthesized from genetic codes present in mRNA. mRNA is synthesized during transcription from DNA templates.

In other words, the sequence of amino acids in proteins is dictated by the sequence of nucleotides on mRNA. Whereas, the sequence of nucleotides on mRNA is dictated by the sequence of nucleotides on the coding strand of DNA that serves as the templates for the synthesis of the mRNA.

In summary, DNA is indirectly responsible for the sequence of amino acids present in proteins.

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Can anyone help me with my homework

Answers

Answer:

1) True

2) True

3) False

4) True

5)True

Please help me. no links I report you

Answers

I think the first graph, I'm not positive though.

A student conducted an experiment to test the strength differences between an orb spider's web and a black widow spider's web. The student calculated the strength of the wob by using the number of seconds each web held a 4 gram weight What type of results did the student calculate in this experiment?
A) Qualitative results
B) Problem-solving results
C) Hypothetical results
D)Quantitative results

Answers

Answer: D

Explanation:

Quantitative type of result the student calculate in this experiment.

What is Quantitative type of results?

Quantitative research is based on the collection and interpretation of numeric data. It focuses on measuring (using inferential statistics) and generalizing results.

The student have no hypothetical formula to calculate the actual strength of the web of both spider, so he always use to get quantitative type of result in his results.Hence option D is correct.

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Plz help ASAP!! No links or files or you’ll be reported.

Answers

Answer: Nephrons eliminate glucose and other waste from the body  or option C.

Si usted sitúa un grupo de plantas verdes (que realizan fotosíntesis) dentro de un ambiente rico en CO2 (dióxido de carbono) con el carbono marcado radiactivamente, es decir, puedo seguir el rastro del carbono. ¿En qué moléculas espera encontrar la marca al interior del cuerpo vegetal?

Answers

Answer: Esperaría encontrar la marca en el interior de moléculas de glucosa ya que el CO2, ya que se utilizan 6 moléculas de CO2 para sintetizar una molécula de glucosa.

Explanation:

La fotosíntesis es un proceso utilizado por las plantas y otros organismos fotoautótrofos para convertir la energía de la luz en energía química que, a través de la respiración celular, puede utilizarse para llevar a cabo distintas actividades metabólicas. Esta energía química se almacena en moléculas de carbohidratos, como los azúcares, que se sintetizan a partir de dióxido de carbono y agua. También se libera oxígeno como producto de desecho.

La energía de la luz es absorbida por unas proteínas llamadas centros de reacción que contienen pigmentos verdes de clorofila. En las plantas, estas proteínas se encuentran en el interior de unos orgánulos denominados cloroplastos, que son los más abundantes en las células de las hojas, mientras que en las bacterias están incrustadas en la membrana plasmática. En estas reacciones dependientes de la luz, se utiliza una parte de la energía para despojar de electrones a sustancias adecuadas, como el agua, produciendo gas oxígeno. El hidrógeno liberado por la ruptura del agua se utiliza en la creación de otros dos compuestos que sirven como almacenamiento de energía a corto plazo, permitiendo su transferencia para impulsar otras reacciones: estos compuestos son el nicotinamida adenina dinucleótido fosfato reducido (NADPH) y el adenosín trifosfato (ATP), la "moneda energética" de las células.

El almacenamiento de energía a largo plazo en forma de azúcares se produce mediante una secuencia posterior de reacciones independientes de la luz denominada ciclo de Calvin. En el ciclo de Calvin, el dióxido de carbono atmosférico se incorpora a compuestos de carbono orgánico ya existentes, como la ribulosa bifosfato (RuBP). Utilizando el ATP y el NADPH producidos por las reacciones dependientes de la luz, los compuestos resultantes se reducen y se eliminan para formar más carbohidratos, como la glucosa.  

Entonces, si el carbono en la molécula de dióxido de carbono (CO2) se encuentra marcada radiactivamente, esperaría encontrar la marca en el interior de moléculas de glucosa ya que el CO2, ya que se utilizan 6 moléculas de CO2 para sintetizar una molécula de glucosa.

PLZ HELP!!!

What line up during meiosis metaphase II at the metaphase plate?
O a) Homologous chromosomes
b) Sister chromatids
c) Aster
d) Microtubes

Answers

Answer:

B sister chromatids

Explanation:

the haploid number of still duplicated chromosomes align at the metaphase plate. sister chromatids separate, becoming daughter chromosomes that move to the poles.

c aster...................

what allows the blood to clot

Answers

Platelets (a type of blood cell) and proteins in your plasma (the liquid part of blood) work together to stop the bleeding by forming a clot

By adding the tin atoms to copper, it makes the metal harder to


Helpp??

Answers

Answer:

Adding tin to copper during melting changes the properties of the metal. The larger tin atoms restrict the movement of the copper atoms, making the material harder.

Explanation:

Please brainliest


Photophores help the animals which zone of the ocean? How do they help?

Question 6 options:

coasts - tentacles to attach to rocks

frozen ocean areas - help blood from freezing

deep sea areas - attract prey with light

coral reef areas - calcification for skeletal protection

Answers

Answer:

Deep Sea Areas

Explanation:

Photophores are animals that produce light.

Photophores help the animals in deep sea areas—attract prey with light  of the ocean. Therefore, the correct option is C.

What are photophores?

Deep sea animals live in complete darkness where no sunlight can penetrate. In order to find food or mates, many of these animals have evolved special light-producing organs called photophores. These organs emit light, which can be used to attract prey or to communicate with other members of the same species.

The light produced by photophores can vary in color, brightness, and pattern depending on the species. Some animals use their photophores to create a dazzling display that confuses or disorients their predators, while others use them to mimic the appearance of other animals or objects in their environment. Therefore, the correct option is C.

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The question is incomplete, but most probably the complete question is,

Photophores help the animals, which zone of the ocean? How do they help?

A. coasts—tentacles to attach to rocks

B. frozen ocean areas—help blood from freezing

C. deep sea areas—attract prey with light

D. coral reef areas—calcification for skeletal protection

The graph represents changes to two jackrabbit populations in two different areas over 15 years.
a. Which of these populations experienced the faster growth rate over the first five years? Explain your answer.
b. Which of these populations probably experienced more births than deaths over the first five years?
c. What is the approximate carrying capacity for each population, as indicated by the graph?
d. At carrying capacity, how would the growth rate of the population in area A compare with the growth rate of the population in area B?
e. Although the two populations started out at the same size, one population grew larger than the other. What are two environmental factors that could have limited the growth of one of these populations?
f. For the population in area A, which part of the chart shows exponential growth and which shows logistic growth?
g. What are two possible changes to environmental factors that could cause the population in area B to experience positive population growth that would allow it to reach the same carrying capacity as the population in area A?

Answers

Answer:

B: blue experienced more death than red

Organisms that are members of the family Coccinellidae are heterotrophic, reproduce sexually, and are multicellular. Knowing this, we can be certain they belong to which kingdom? А Animalia B Plantae C Eubacteria D Protista​

Answers

Answer:

they belong to kingdom (A). Animalia.

The enzyme pepsin is produced in the cells of the stomach but not in the cells of the small intestine. The small intestine produces a different enzyme, trypsin. The reason that the stomach and small intestine produce different enzymes is that the gene that codes for pepsin is A) in the cells of the stomach, but not in the cells of the small intestine B) mutated in the small intestine C) digested by the trypsin in the small intestine D) expressed in the stomach but not expressed in the small intestine

Answers

Answer:

D) Expressed in the stomach, but not in the cells of the small intestine

Explanation:

The stomach and small intestine produce different enzymes is gene codes for pepsin is expressed in the stomach but not expressed in small intestine.

What is the function of trypsin?

Trypsin is an enzyme that helps us digest protein. In the small intestine, trypsin breaks down proteins, the process of digestion that formed in the stomach.

Is a proteolytic enzyme produced by the pancreas in an inactive form called trypsinogen.

Thus, option "D" is correct as trypsin is expressed in stomach for protein breakdown.

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what not to do when handling acids and bases​

Answers

Wear protective gear (goggles, long-sleeved clothes, and gloves) when using acids and bases. Do not allow acids or bases to come in contact with skin or eyes. Limit the amount of acids and bases transported for usage around the house. Cap the bottles of acid and base cleaners tightly.

Which type of tectonic plate interaction forms a mid ocean ridge?

Answers

Answer:

Divergent plate  

Explanation:

A semi ocean ridge is formed by the interaction of divergent boundaries. Around divergent plate boundaries, as additional sea floor is formed as the Earth's tectonic plates expand outward, half ridges form. Igneous material grows to the ocean bottom when the plates split, resulting in massive basalt volcanic activity.

Every ____ has a specific _____

• cell membrane
• function
• cell wall
• chloroplast
• mitochondria
• nucleus
• cytoplasm
• organelle

Answers

Answer:

Every organelle has a specific function

Which event came first? The age of reptiles Amphibians leave the water Trilobites are one of the dominant species on Earth Early humans arise on Earth​

Answers

Answer:

Trilobites are one of the dominant species on Earth

We know it's not D, the age of reptiles was just a "wee" bit before humans, and amphibians came after trilobites.

Answer

F1 development of the ozone layer

S2 sharks and trilobites abundant in oceans

T3 plants and animals colonize land

F4 dominance of reptiles >> dominance of mammals

The kind of weathering caused by water freezing in rocks is known as Question 1 options: chemical weathering mechanical weathering root-pry pedalfer

Answers

The weathering of rocks that is caused by freezing in rocks and the attendant physical pressure,  is called mechanical weathering.

What is weathring?

The term weathering refers to the breakdown of rock. This breakdown of rocks often leads to soli formation. There are many ways in which weathering may occur.

When weathring occurs as a result of freezing in rocks and the attendant physical pressure, this process is called mechanical weathering.

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True or false? Living things exist alone and have no interaction with other living things or their
environment.

Answers

Answer:

False, Living things exist with other living things and frequently interact with other living things.

A group of scientists are studying the genome of the Drosophila Fly. In these flies, the allele for long wings is dominant over the allele for short wings. What phenotype would a heterozygous genotype have?

Answers

Answer:

Long wings dominant = LL

Short wings recessive = ss

Heterozygous= Ls

Explanation:

That what I was able to get with the information provided hope it helps.

7. Which type of mass movement occurs rapidly
when a single mass of soil and rock suddenly
slips downhill?
A. creep
B. landslide
C.mudslide
D. slump

Answers

Answer:

The most destructive type of mass movement is a landslide, which occurs when rock and soil slide quickly down a steep slope. Some landslides may contain huge masses of rock, while others may contain only a small amount of rock and soil. A mudflow is the rapid movement of a mixture of water, rock, and soil.

B. Landslide
••••••••••••••••

All organisms need energy and
to live, grow, and reproduce. Both of these things cycle
through an ecosystem through its organisms.
sunlight
decomposers
matter
reproduction

Answers

Answer:

Sunlight

Explanation:

30 points picture shown! only real answers pretty please
The picture below shows the satellite image of ocean surfaces on Earth at Locations A, B, C, and D.

Which of these graphs best models the waves in the four locations?

Answers

Answer:

B

Explanation:

The process of diffusion does NOT require energy. What kind of transport is this?
Facilitated diffusion

Answers

Answer:

passive transport cause it goes with it's concentration gradient

true or false
almost all cells have a nucleus

Answers

Answer:

True

Explanation:

Almost all cells have a nucleus. Haemoglobin is red blood cell but has no nucleus, prokaryotes have plasmid and not a nucleus sooo... Yea

Question 4: Here is a picture of Mr. Dacy's family. Given what you know about genes
and dominance, how is it possible that Mr. Dacy's son Isaac is blond?

Answers

Mr Dacy and Mrs Dacy must have a blonde recessive trait from their parents that had a low chance of being the dominant trait in their son but he got the probability

ANSWER PLS DONT PUT LINKS

Answers

Answer: C!! :)

Explanation:

C tell me if I’m right

In Respiration, to where is the energy from sugar molecules transferred?

Answers

Explanation:

During the process of glycolysis in cellular respiration, glucose is oxidized to carbon dioxide and water. Energy released during the reaction is captured by the energy-carrying molecule ATP (adenosine triphosphate).

Answer:

its transferred to ATP

Explanation:

during respiration glucose and oxygen is converted into carbon dioxide and water, so the energy is transferrred to ATP

Create a mutant fly with any number of variations and mate it with a
wild-type fly. How many offspring are wild-type? What are the
phenotypes of the flies that are not wild-type?

Answers

If you are creating one just make up the numbers there aren’t right or wrong answers because you are creating one

Untamed type, a person who exhibits the typical phenotype, which is the phenotype typically present in a population of living things. Mutant, a person who deviates from the typical phenotype in some way.

What are the phenotypes of the flies that are not wild-type?

The phenotypic of a species' normal form as it appears in nature is known as the wild type (WT). The wild type was initially thought to result from the “regular” standard allele at a location, as opposed to a non-standard, “mutant” allele.

Type wild, an individual with the typical phenotype, or the phenotype typically present in a population of living things in the wild. Mutant, a person, has a phenotype that is different from the typical phenotype.

Therefore, to characterize a gene in its natural, unaltered (unchanged), non-mutated form. Some cancer types have been linked to mutated (changed) versions of specific genes.

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Investigate the optimal amount of foliage for the green,
long furred slinquettes' population.

Answers

Answer:

k

Explanation:

Other Questions
your backyard is shaped like a rectangle and measure's 45 1/2 feet by 50 feet. you want to put a fence around your backyard. how much fence will you need? 20 points real answers please and thank youThe picture below shows a satellite image of a sea. (1 point)Which of these statements is correct about the sea at Location A and Location B?The waves at Location A are abnormally low.The waves at Location B are abnormally low.The waves at Location A move at high speed.The waves at Location B move at high speed. What is the difference between the two rates ofchange?Function AFunction B.71421Y31017 Please help, Im being timed! I will give brainliest!!!!!!! A small country emits 130,000 kilotons of carbon dioxide per year. Ina recent global agreement, the country agreed to cut its carbonemissions by 3.1% per year for the next 10 years. In the first year of theagreement, the country will keep its emissions at 130,000 kilotons andthe emissions will decrease 3.1% in each successive year. How manytotal kilotons of carbon dioxide would the country emit over the courseof the 10 year period, to the nearest whole number? WILL GIVE BRAINLIEST Which expressions are difference of squares? Select all correct answers.x2 + y2 x8 - 4 y2 - 25 x2 + 9 (the numbers next to the x's are exponents, i dont know how to write them on here) How do I turn on a Girl??? What is the ph of H2? calculate the molar mass for BaSO4 Students are voting on the color of T-shirts to wear on their field trip. There are 160 students-65 boys and 95 girls- going on the field trip. A random sample of students is chosen. Surveying the random sample produced a representative sample of the population. Which was most likely true of the representative sample? The representative sample contained all 160 students. The representative sample contained more boys than girls. The representative sample contained more girls than boys. The representative sample contained an equal number of boys and girls. Luis scored 22 out of 49 shots. How many would he be expected to score in 100 shots Please help me. no links I report you what is this a picture of. if you get it right ill give you the brainiest solve for x[tex]\frac{7}{x+4}[/tex] = 4Give your answer as an improper fraction in its simplest form. write a long poem about the bastile Joint products A and B emerge from common processing costs of $100,000 and yield 2,000 units of Product A and 1,000 units of Product B. Product A can be sold for $100 per unit. Product B can be sold for $120 per unit. The amount of joint costs allocated to Product A (if joint costs are allocated on the basis of relative sales value) will be $ (rounded to nearest dollar). Light travels at approximately 2.998 x 10^5 kilometers per second. There are 6.048 x 10^5 seconds in one week. About how many kilometers does light travel in one week?A 1.813 x 10^5B 1.813 x 10^10C 1.813 x 10^11d 1.813 x 10^25 C D Moody is an award-winning, Black-owned construction company in Lithonia, Georgia.TaShauna contracted the company to build a porch in her front yard. The total area of her frontthe yard is 4x^2+ 3x 10. What is the total area of the porch, if the area surrounding the porch is 3x^2 20? Please help thank youu! Word bank: bien educada, tmida, traviesa, obediente, consentida.