How many different ELEMENTS are in Na2SO4?
A.)1
B.)3
C.)6
D.)7

Answers

Answer 1

Answer:

D, 7

Explanation:

In one molecule of sodium sulfate, or Na2 SO4, there are seven atoms in all. The chemical formula for this molecule tells us this.


Related Questions

Why does PE = mgh equal PE = Fw h ?

Answers

Answer:

Why is potential energy MGH?

Potential energy is energy an object has because of its position relative to some other object. ... For the gravitational force the formula is P.E. = mgh, where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m / s2 at the surface of the earth) and h is the height in meters.

Explanation:

Yes Yes Yes Yes Yes Yes

State two features of diffusion that do not apply to active transport

Answers

diffusion moves ions from high concentration to low using no metabolic energy and active transport uses metabolic energy in the form of atp to move ions from high concentration to low concentration

C2H6O1 what is the answer?

Answers

Answer:

46.0684

Explanation:

Answer:

I'm sorry but I don't understand your question.

A muscle cell requires more usable energy than a skin cell. Therefore, muscle cells contain many more
a ribosomes
b. nuclei
c. mitochondria
d. chloroplasts

Answers

Answer:

C

Explanation:

The speed at which waves approach the shore depends on the shoreline features and the depth of the sea floor. When a wave reaches the shore, it releases a burst of energy that generates a current which runs parallel to the shoreline. What is this current called?

Answers

Answer:

Longshore current.

Explanation:

A wave is a disturbance which travels through a material medium without any permanent displacement of the particles of the medium. During the propagation of a wave, energy is transmitted from one point to another since waves flow with energy. The higher its speed of propagation, the higher the energy of the wave.

The energy released by the wave at shore produces a current which is referred to as a longshore current.

Answer:

It would be Longshore Current

Explanation:

Hope it helps :)

What process best explains how a nerve cell and a muscle cell can both
develop from the same fertilized egg?
O A. differentiation
O B. natural selection
O C. selective breeding
O D. genetic engineering
Need ASAP!

Answers

Answer:

Im pretty sure its A.

Explanation:

=just took the teskst

Answer:  The correct answer is A. differentiation

Explanation:  Confirmed correct.


What is gel electrophoresis? Explain how the length of base pairs flow through the gel.

Answers

Answer:

DNA is negatively charged, therefore, when an electric current is applied to the gel, DNA will migrate towards the positively charged electrode. Shorter strands of DNA move more quickly through the gel than longer strands resulting in the fragments being arranged in order of size.

Explanation: :3 hope this helps

what do you think is a way for geologist to locate ore bodies? justify your answer​

Answers

Answer:

Explanation:

what do you think is a way for geologist to locate ore bodies? justify your answer​

From my research, there is lots of information on how to extract ore, but I can't find any information on how these ore deposits are found in the first place, apart from 'looking for surface formations'. So, what kind of formations would exist for different types of ore? Are there any other ways of finding ore?

Which statement best summarizes the importance of meiosis to reproduction?

Answers

Your answer would most likely be: C. It produces gametes that are needed for sexual reproduction.

I hope this helped you out a bit :)

When an atom loses an electron, it becomes a?

Answers

when it loses an atom it becomes an ion
It becomes a positive ion . Eg Na lost 1 electron to form Na+ . Vive verca , if an atom gains an electron it becomes negative

What is the approximate diameter of the Zika virus?

Answers

I don't know I'm sorry I need point please forgive me

Why is it important for gametes to be haploid cells?

Answers

It is important that the chromosomes are haploid, because when the sperm and the egg fuse together the cell will have 46 chromosomes.

The reason why it is important for gametes to be haploid cells is because: when the sperm and the egg fuse together the living sex cells will have 46 chromosomes.

Gametes are also referred to as sex cells and they can be defined as the reproductive cells in a living organism.

Generally, the male reproductive cell is known as a sperm while the female reproductive cell is known as an egg.

Since gametes are reproductive cells or sex cells, they are typically made up of haploid set of chromosomes.

Basically, it is very important for gametes to be haploid cells so that when the sperm and the egg fuse together, the living sex cells will have a total of 46 chromosomes.

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3. Which of the following is a defining characteristic of a prokaryotic cell?

a. The method of cellular Respiration
b. The composition of the cell membrane
C. Absence of a membrane-bound nucleus
d. The method of movement

Answers

Answer:

C

Explanation:

Prokaryotic cells do not have any membrane-bound organelles, only eukaryotes do.

The prokaryotic cell is a simple primitive cell, unlike the complex eukaryotic cells. The absence of a membrane-bound nucleus is a characteristic of prokaryotes. Thus, option C is correct.

What is a prokaryotic cell?

Prokaryotes have been the cells that have lived on earth for millions of years ago. They are made of single cells and hence are unicellular. Unlike the eukaryotic cell, they have simple mechanisms of living and reproduction.

They lack a centrally located defined nucleus that is not covered in any membrane and lies simply in the cytoplasmic material. Also, they lack organelles that make them different.

The genetic material is located in a concentrated form in a structure called the nucleoid that lacks a nuclear membrane.

Therefore, option C. the prokaryote lacks a membrane-bound nucleus.

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What is the purpose of Mitosis? *
A. To produce an egg and a sperm cell.
B. To produce a new organism (like bacteria).
C. To produce a new cell (NOT a new organism).
D. To differentiate.

Answers

Answer:

C.

Explanation: Mitosis is a process where a single cell divides into two identical daughter cells (cell division). During mitosis one cell? divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.

Hope this helps! Have a nice day!

Answer:

C. to produce a new cell

Explanation:

Mitosis consists in replicating the genetic material of a mother cell in order to make two identical daughter cells; this is a diploid process. In order to make an egg or sperm cell and eventually a new organism, the correct process would be meiosis, since it combines the DNA between two cells and it is an haploid process.

Southern Florida has many tropical hardwood hammocks—forest habitats that are warm, wet, and populated with many broad-leaved evergreen trees. Why might a plant native to an ecosystem with a cooler climate do well if introduced to a tropical hardwood hammock? Group of answer choices The trees in the tropical hardwood hammock are better at competing for native resources than the introduced species are. The wet conditions in the tropical hardwood hammock disrupt the life cycle and limit reproduction of the introduced species. Freezing temperatures that normally limit the population in the cooler climate are lacking in the tropical hardwood hammock. Pollinators and seed carriers that normally increase the population in the cooler climate are lacking in the tropical hardwood hammock.

Answers

Answer:

Freezing temperatures that normally limit the population in the cooler climate are lacking in the tropical hardwood hammock.

Explanation:

The tropical hardwood hammocks are habitats that act as small ecosystems markedly different from the surrounding environment, and they may be seriously threatened by introduced plant species. In Florida, exotic plants have been introduced into the tropical hardwood hammock habitat, reaching to about 50% of the flora in some areas. The mature hammock of these habitats can generate a shade that maintains a temperature of several degrees cooler compared to their neighboring habitats, and thereby promoting invasion by exotic species.

How will help preserve kitchen
tools to avoid rusting?​

Answers

do not let it stay wet for long periods of time and dry if off after wash

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A team of engineers is designing a new ship. The engineers first build several models of the ship. Explain in your own words why the models could help the engineers

Answers

Answer:

The model could help the engineers by giving they a prototype to build off of so they have an idea of what they ship looks like, and if the test it, they could troubleshoot and see the errors/successes of the model.

Explanation:

The engineers first build several models of the ship as the model could help the engineers by providing them a prototype to build of so that they have an idea of what or how the ship will looks like, and if they test it, they could troubleshoot and see the errors or successes of the model of the ship.

What are the fields in which science is applied?

Science has the factual based knowledge and it has about the Nature as well as the natural world that has created on the basis of observations and the experiments. It has the study of the experiments and observations and it has totally depend upon the scientific result that has obtained after the scientific experiments.

There are several fields in which science has been applied and these field are healthcare, telemarketing, environmental engineering, banking, government regulation, space, biochemistry, physics, chemistry, biochemistry and astronomy, engineering.

Therefore, The engineers first build several models of the ship as the model could help the engineers by providing them a prototype to build of so that they have an idea of what or how the ship will looks like, and if they test it, they could troubleshoot and see the errors or successes of the model of the ship.

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mutations are caused by the way genes from both parents combine, and they do get passed on. True or False

Answers

Answer:

That's True

Explanation: Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses. :)

Compare fossil fuels and
biomass as energy resources.

Answers

Answer:

Compare fossil fuels and biomass as energy resources. Both fossil fuels and biomass come from organic matter, are burned to generate energy, and cause air pollution when used. Biomass is renewable, whereas fossil fuels are nonrenewable.

Explanation:

What does it represent?

Answers

Answer:

3

Explanation:

The arrows show the transfer of energy through prey and predator. When the deer eats the leaves, energy from the plant is transferred to the deer.

The correct answer is 3, the flow of energy
When they eat one another, the energy transfers

please help i will mark brainliest

Answers

Answer:

The vaccine that protect humans from the h1n1 virus is called Panvax vaccine or swine Explanation:They are inactivated H1N1 virus vaccines used for immunization of individuals 6 months of age and older against influenza disease caused by H1N1 2009 virus.

Which organelle provides support for the cell and may also help the cell move?
Cell Membrane
Cytoplasm
Cytoskeleton
Ribosome

Answers

Cytoskeleton because it maintains cell's shape, secures organelles in specific positions, allows cytoplasm and vesicles to move within the cell

guys please help
Question 11 Part A)

Make sure to sure me your work.

Answers

Answer:

95%

Explanation:

190 is 95% of 200.

The comparison of input versus output is also 95%

Milk sugar is a good source of;
A)galactose
B)glucose
C)fructose

Answers

The correct answer is glucose!


A form of simple cittusion is Osmosis. In which direction will water flow in the process of Osmosis?

A. Water will flow from low concentration to higher concentration

B. Water will flow with the solutes, against the concentration gradient

C. Water will flow towards the solutes (.e. toward the higher salt concentration)

D. Water will flow away from the solutes, with the concentration gradient

Answers

Answer: D

Explanation:

osmosis, water always moves from an area of higher water concentration to one of lower concentration.

A plate moves south at a rate of 2 cm/year. How many meters south from its original location will the plate be in 4,000 years?

Answers

Answer:

not 8.000

Explanation:

y

Please Mark Me BRAINLIEST!!!

Answer:

80 years

Explanation:

edg 2020

Perform online research to learn about an invasive species and its new environment. Discuss how the species was introduced to the environment, where it is invasive, what advantages the species has over native species in this environment, and what problems the species poses to the environment.

Answers

Answer:

(Answers may vary.)

Farmers brought nutria, a type of large rodents, from South America to North America in the 1990s. They wanted to raise the rodents for their fur. Some of these rodents escaped into the wild and became a major pest in the Gulf Coast and Chesapeake Bay regions. Grasses and shrubs in these regions are vital, because they provide food and shelter for many species. They also help in preventing soil erosion. The nutria are eating up all the grasses and shrubs, which affects the food cycles of these regions. The entire ecosystems are being disrupted.

Moreover, nutria pose a direct threat to humans. These rodents are an effective vector for carrying parasites that can cause disease in humans. They also damage property. The burrows created by nutria can damage dams and building foundations as well as cause erosion near streams and lakes.

Explanation:

the answer from pluto/edmentum

Answer:

The apple snail is a native species of Argentina, Bolivia, Brazil, Paraguay, and Uruguay. Southeast Asia legally imported this alien species to use it as a protein source. Later, this species was brought to places like Hawaii as a source of food.

Like most, if not all, invasive species, the apple snail outcompetes native species for resources. This is because it reproduces rapidly (laying hundreds of eggs every few weeks) and lacks predators. As a result, the snails spread rapidly to aquatic biomes and modify the natural balance of aquatic ecosystems.

Explanation: plato edmentum (answers may vary)

All human body cells contain 46 chromosomes. However, sperm cells in men and egg cells in women have only 23 chromosomes. This is due to meiosis. How does meiosis accomplish the reduction in chromosomal number?

Answers

Answer:

Two cell divisions after DNA replication

Explanation:

After the DNA is replicated, the cell undergoes two rounds of meiosis to produce 4 cells, each wIth 23 chromosomes. This is how the cell goes from a diploid to a haploid state.

Why does having low levels of glucose or oxygen in his cells make it difficult for Guillermo to walk up steps? Which

Answers

The blood is the best to get tested as it is the only means glucose and other relevant materials reaches their destination


Explanation:


Lady Bird Johnson is responsible for which activity when her husband
was Governor of Texas

Answers

Answer:

she became the first presidents wife to advocate actively for legislation

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