Which of the following is true about the structure of water?
1. It is held together by an ionic bond
2. It is nonpolar
3. It is polar
4. It has one positive hydrogen attached to one negative oxygen

Answers

Answer 1

Answer:

3.) It is polar

Explanation:

Water is polar covalently bonded within the molecule. This unequal sharing of the electrons results in a slightly positive and a slightly negative side of the molecule. Other molecules, such as Ethane, are nonpolar, having neither a positive nor a negative side.


Related Questions

Write five general properties of minerals

Answers

Answer:

Color, luster, streak, hardness, and cleavage

Explanation:

Some astronomers work for consulting firms that provide expertise to government agencies. Which of the following explains why an astronomer would work as a consultant?


An astronomer would be able to focus on research alone.

An astronomer would not have to obtain a national security clearance.

An astronomer would apply expertise to improve satellite designs.

An astronomer can make more money working as a consultant.

Answers

Answer: An astronomer would apply expertise to improve satellite designs

The one that explains why an astronomer would work as a consultant is an astronomer would apply expertise to improve satellite designs. The correct option is c.

Who is an astronaut?

An astronaut is a person who works in the areas of space. They have knowledge of space equipment, and technologies.

A satellite is an instrument that revolves around the planets. There are natural satellites and artificial satellites. Natural satellites are the moon and artificial satellites are made by space design artists and all the activities are checked by astronauts.

A consultant is an assistant that works with an astronaut. They have expertise in technologies and assistance in the making of space equipment.

Therefore, the correct option is c. An astronomer would apply expertise to improve satellite designs.

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HELP PLEASE
Which of these chemicals is not a pollutant?
A. Methane
B. Nitrogen gas
C. Nitrate
D. Carbon dioxide

Answers

Answer:

All these chemicals are primary causes of pollution. Although, only one isn't an air pollutant. Which would make my best Guess C. Nitrate

Explanation:

A. Methane Is the main component in gas and oil. Oil companies have been responsible for polluting our air with about seven million tons of methane per year.

B. Nitrogen gas in general is one of the main air pollutions. otherwise know as Nitrogen dioxide.

C. Nitrates are found in ground waters and transfers into the soils surrounding said waters. Nitrates commonly are a cause of death in infants when drinking tab water or eating crops grown from nitrate infected soils. Adults aren't nearly as infected by this.

D. Carbon Dioxide is a greenhouse gas that pollutes our air and has been a main cause of global warming.

I'm at a loss for answering this question since all of these are polluting our earth in some way. The only way I can think to answer this is that all but one are air pollutants. So maybe the one that is not a air pollutant is the correct answer. My best guess is C. Nitrate

Hopes This Helps :)

what happened as a result of over hunting whales

Answers

Everyone died snake kappa mf f d

Which grouping has the least complex body plan?

Answers

Answer:

The correct answer to this question is "poriferia."

Explanation:

The common example of this group of animal is the sponge. Sponges are the basalmost clade of animals of the phylum Porifera. Given that you were on a research expedition in the Kingdom of Tonga, a coral atolll in the South Pacific, you can be able to find these sponge.By definition, coral atoll is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely.

Answer:

The correct answer to this question is "poriferia."

The common example of this group of animal is the sponge. Sponges are the basalmost clade of animals of the phylum Porifera. Given that you were on a research expedition in the Kingdom of Tonga, a coral atolll in the South Pacific, you can be able to find these sponge.By definition, coral atoll is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely.

Explanation:the common example of this group of animal is the sponge. Sponges are the basalmost clade of animals of the phylum Porifera. Given that you were on a research expedition in the Kingdom of Tonga, a coral atolll in the South Pacific, you can be able to find these sponge.By definition, coral atoll is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely.

When stomata are closed during hot weather, Oxygen combines with RuBP and a wasteful process occurs, known as:

a. photo phosphorylation
b. photo transpiration
c. photochemical
d. photorespiration

Answers

Answer:

Photorespiration

Explanation:

what is an acid? What is a base?

Answers

Answer:

An acid is a substance that donates hydrogen ions. Now there are more hydrogen ions than hydroxide ins in the solution. This kind of solution is acidc. A base is a substance that accepts hydrogen ions. When a base is dissolved in water, the balance between hydrogen ions and hydroxide ions moves the other way.

Explanation:

Answer:

An acid–base reaction is a chemical reaction that occurs between an acid and a base. It can be used to determine pH.

Explanation:

An acid is a substance that donates protons or accepts a pair of valence electrons to form a bond.

A base is a substance that can accept protons or donate a pair of valence electrons to form a bond. Bases can be thought of as the chemical opposite of acids.

PLZ PLZ HELLPP MEEE will mark brainliest




Which of the following does not occur in an aquatic ecosystem as a result of nutrient loading?
a. acidification of the water
b. algae growth as a result of eutrophication
c. degraded quality of water for human and livestock consumption
d. improved water habitats for human recreation

Answers

Answer:

Answer D

Explanation:

improved water habitats for human recreation

D. Hope this helps :)

_______ species are the first species to colonies disturbed or newly created environment

Answers

Native species should be the correct answer

HEP PLEASE btw the answer is not D I am not sure what’s the answe

Answers

Answer:

I believe the answer is A

Explanation:

What would happen if the enzyme used for cellular respiration or photosynthesis to break after a few cycle? Why?

Answers

Answer:

Please mark as brainliest!!!

Explanation:

Cells face a related problem when they break down fuels, such as glucose, to produce ATP. If the cell’s supply of ATP is low, it would do well to break down glucose as quickly as possible, replenishing the ATP it needs to “keep the lights on.” If the supply of ATP is high, on the other hand, it might not be such a good idea to oxidize glucose at top speed. ATP is an unstable molecule, and if it sits around in the cell too long, it’s likely to spontaneously hydrolyze back to ADP. This is like the case of the melted ice cream sandwich: the cell has spent glucose to make ATP, and that ATP ends up going to waste.

It’s important for a cell to carefully match the activity of its fuel breakdown (pathways to its energy needs at a given moment. Here, we'll see how cells turn cellular respiration pathways “up” or “down” in response to ATP levels and other metabolic signals.

If a cell's organelle worked in an actual human factory and had the role of the electric generator, which organelle would it be?

Answers

Answer: mitochondria

Explanation:

An electric generator produces energy to do work. A mitochondria produces ATP to power the cell.

BRAINLIEST BRAINLIEST BRAIBLIEST PLEADE ANSWER DUSUSISISJJAIXNDJDD

Answers

Answer:

uh I am not really sure But I think it is HE

Explanation:

It appears the answer must be:

Hydrogen

Which type of energy pyramid can be inverted?


A) pyramid of numbers

B) pyramid of biomass

C) pyramid of energy

D) pyramids of numbers, biomass, and energy

Answers

Answer:B

Explanation:

Answer:

The correct answer is D

Explanation:

Somebody help me plsss

Answers

Answer:

1. give up 1

2. give up 2

3. give up 3

4. gain 3

5. gain 2

6. gain 1

Mark me as brainliest if you found it helpful

1. What is the density of an object that has a mass of 1,470 g and volume of 42 mL?

Answers

Answer:below

Explanation:

ρ =  m/V=  

1470 gram/42 milliliter

=  35 gram/milliliter

=  35000 kilogram/cubic meter

Suppose we completely stopped burning fossil fuels immediately. How many years would it take to return to atmospheric CO2 levels from the year 1800, about 600 GtC? Use the Gizmo to find the answer.

Answers

Answer:

Explanation:

It would take 50 years to return to atmospheric CO2 levels from the year 1800. I know this because I set the fossil fuel usage to 0 and proceeded to simulate 50 years and that’s when the atmospheric CO2 levels returned to 600 GtC.

As per observation It could take 50 years to go back to atmospheric CO2 degrees from the yr 1800.

Each year, there has been no extrade in the quantity of CO2 withinside the ecosystem because of soil and land plants. coal also can be the answer.

What is co2 quantity ?

Since 2000, the worldwide atmospheric carbon dioxide quantity has grown with the aid of using 43.5ppm, an growth of 12 percent. The contemporary-day document of atmospheric carbon dioxide degrees commenced with observations recorded at Mauna Loa Observatory in Hawaii.

Thus it is well explained.

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Which of the following is the most obvious type of problem that could be caused by inadequate sewage treatment?



1.Acid Rain
2.Noise pollution
3.Radioactivity
4.Water pollution

Answers

Answer:water pollution

Explanation:

Carbohydrates, proteins, and lipids are important molecules that make up the structure of the cell membrane. They help move materials into and out of the cell through the cell membrane
In what way is the cell membrane like a security guard?

Answers

Answer:

The cell membrane only alows certian materials to move through the membrane. Just like a security guard the membrane sorts through the good stuff and lets it past, but if someone or something bad comes along the security guard stops it. Just like the cell membrane.  

help what goes where help asap will try to mark brainliest!!​

Answers

Go from the bottom of the food chain to the top, the grass is eaten by herbivores, the bird and frog eat insects, and the snake is a carnivore and eats the other animals.

Glucose is broken down in the cytoplasm of the cell. What is
this process called?

Answers

Answer:

glycolysis hope this helps <3

Explanation:

In stage one, glucose is broken down in the cytoplasm of the cell in a process called glycolysis. In stage two, the pyruvate molecules are transported into the mitochondria

Answer:

glycolysis

Explanation:

Compare the Viking 1 and 2 probes to the Pathfinder probe that landed on Mars in 1997. How was their technology different?

Answers

Answer:

Explanation:

In 1976, The Viking 1 and Viking 2 probes landed on Mars. For six years they transmitted fascinating panoramic views of the red and rocky soil of Mars back to Earth. Twenty years passed before a third probe landed on Mars. In 1997, the Pathfinder probe landed a miniature vehicle named Sojourner on the planet. The probes operated for three months and sent back large amounts of data on the Martian environment. At the same time, the Mars global surveyor probe was placed in orbit to take an overall portrait of the planet. It supplied hundreds of thousands of bits of information, especially on climatic variations.

Answer:

Viking 1 and Viking 2 probes transmitted panoramic views of the red and rocky soils back to Earth after six years later. The Pathfinder probe sent back large amounts of data of the environment especially about climatic variations in only three months. You can tell the technology was very different between these two because of how long it took for each probe to gather data.  

A blank is an example of a prokaryotic cell

Answers

Answer:

Bacteria

Explanation:

Answer:

Bacteria

Explanation:

Bacteria is the most common prokaryotic cell. Hope this helps!

What is the role of photosynthesis and cellular respiration in the cycling of matter and the flow of energy through the ecosystem

Answers

Answer:Cellular respiration in plants and animals involve chemical reactions with oxygen that release stored energy. ... Plants, algae, and many microorganisms use the energy from light, carbon dioxide from the atmosphere, and water to make sugars (food) through the process of photosynthesis, which also releases oxygen.

Explanation:

hope it helps :)

The role of photosynthesis and cellular respiration in the cycling of matter and the flow of energy through the ecosystem is the following:

The fundamental energy source of all ecosystems is the Sun, which sends a large amount of energy to Earth in the form of light and heat.

The various green plants use energy from the sun, water and nutrients from the soil, and carbon dioxide from the air to produce organic matter.

The process by which light is used as an energy source to transform CO2 into organic compounds essential for life is called photosynthesis.

The manufactured organic matter is used by the photosynthetic organisms themselves for the maintenance of their vital processes through cellular respiration.

Energy, once solar energy is transformed by producers into chemical energy by making organic matter in photosynthesis, is transmitted along with matter.

In each transfer of energy, between the different types of organisms there is a release of energy to the environment, in the form of heat.

On the contrary, matter flows cyclically, chemical elements are transferred between living beings and in the physical environment of each ecosystem.

Therefore, we can conclude that the role of photosynthesis in the cycling of matter and the flow of energy through the ecosystem is to produce the transformation not only of inorganic into organic matter, but also of light energy into chemical binding energy, oxygen is released as a waste product and is used by most organisms for cellular respiration.

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ASAP PLEASE

How are photosynthesis and cellular respiration related?
Group of answer choices

The products of photosynthesis are the reactants of cellular respiration.

The reactants of photosynthesis are the reactants of cellular respiration.

The reactants of photosynthesis are the reactants of cellular respiration.

The products of photosynthesis are the products of cellular respiration.

Answers

The answer is the first one :)

Answer:

The answer is The products of cellular respiration are the same as the reactants of photosynthesis.

Explanation:

because they have the same reactants

What challenges do Arctic areas face as a result of global warming? 2) What measures could help deal with the problem? 3) What do you predict will happen to Arctic ecosystems if no measures are taken to reverse the problem of global warming? Explain your reasoning. 4) Which measures do you think are most important to pursue?

Answers

Answer:

Global warming is defined as the environmental issue that leads to long term heating of the earth due to human activities such as burning of fossil fuels.

1. Arctic areas are facing huge challenges due to global warming that includes rising sea levels, rapid melting of ice,  loss of fish stocks, birds and marine mammals, and changes in climate patterns.

2. Measures that help to deal with the problem are reduction in the use of hydrofluorocarbons, cutting emissions of black carbon, methane, reduce overfishing, and reduction of industrial waste.

3. If there will be no measure taken to reverse the problem of global warming in the Arctic ecosystem, it will cause flood and tsunami in the nearby continents due to the rapid melting of ice, changes in climate patterns, and lead to the extinction of many marine animals.

4.  Reduction of industrial waste is the most important measure to pursue because industrial waste contributes most of the greenhouse gases and causes air pollution, land pollution, water pollution, and nuclear pollution. So reduction is industrial waste will reduce the emission of harmful gases in the environment that can reduce the impact of global warming.

Which phrase describes organisms that formed index fossils?
(a) Are extinct
(b) Had soft parts
(c) Were generally large
(d) Lived in a narrow geographic area​

Answers

Answer:

A.) Are extinct

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Options (1), (2), and (4)

Index fossils are usually defined as those fossils that were present on earth for a very short period of time. They were very broadly distributed in almost all parts of the world. They were comparatively smaller in size and comprised of hard parts that were preserved under favorable conditions which are found at many places in the present. These are extinct species. For example, trilobites and ammonites.
These index fossils are very useful because it helps in determining the age of the fossils as well as rocks by applying the radioactive dating method.
thus, the correct answers are options (1), (2), and (4).

How does a catalyst work?
A. by increasing the temperature of a chemical reaction
B. by decreasing the pressure of a chemical reaction
C. by increasing the concentration of reactants in a reaction
D. by decreasing the activation energy of a reaction

Answers

Answer:

D. By decreasing the activation energy of a reaction

Explanation:

What would happen if the squirrel population were eliminated

Answers

It would disrupt the food chain

Which of the following would be the correct classification for the soil and earth material in the most productive aquifer?

low porosity, high permeability
high porosity, high permeability
low porosity, low permeability
high porosity, low permeability
Please help ASAP
(50 points if you help FAST)

Answers

Answer:

B. high porosity, high permeability

C. low porosity, low permeability

Explanation:

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