Which of the following representations shows how one variable changes in response to another variable?

A.
models
B.
line graphs
C.
pie charts
D.
complex systems

Explanation:

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Answer:

Explanation:

The density of a substance can be found by using the formula

\(density = \frac{mass}{volume} \\ \)

From the question we have

\(density = \frac{178.5}{1000} \\ = 0.1785\)

We have the final answer as

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Answer:

The organisms that consume the primary producers are herbivores: the primary consumers. Secondary consumers are usually carnivores that eat the primary consumers. Tertiary consumers are carnivores that eat other carnivores.

Answer:

Explanation:Using the equation, PV=nRT, you can solve this problem.

P= 3.5 kPa V=? n= 0.55 moles of air T= 295K R= 8.314 (L kPa/mol K)

We use the constant rate of 8.314 because we are using kilopascals in this problem.

Using simple algebra we get-

V = (0.55 moles)(8.314 L kPa/mol k)(295 K) / 3.5 kPa

Using the calculator, we would get the answer of 385.4132857 L.

And whatever the significant figure is asked for, for example, 3 significant figures: the answer would be 385 liters.

112.2 milliliters volume of water will drip into the bucket in 44 minutes.

How much space an object or substance takes up. • Measured in cubic meters (m3), liters (L) & milliliters (mL).

Total drop = Drops per minute X time

= 51 drops per minute X 44 minutes

=2244 drop

Volume of water will drip into the bucket in 44 minutes

=Total drop X Volume of each drop

=0.050 milliliters X 2244 drop

=112.2 milliliters

Hence, 112.2 milliliters volume of water will drip into the bucket in 44 minutes.

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sodium chloride, glucose, and albumin generated osmotic pressure.

Osmotic pressure is the pressure that is required to stop the flow of solvent particles through a semi-permeable membrane from the side of the lower concentration of solute particles to the side of the higher concentration of solute particles.

It is expressed in atmospheres (atm) or pascals (Pa).The osmotic pressure generated by a solution is directly proportional to the concentration of solute particles present in it.

The more the number of solute particles present in a solution, the more is the osmotic pressure generated by it. Therefore, of the given options, all three, namely, sodium chloride, glucose, and albumin generated osmotic pressure.

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Answer:

Corrosion

Explanation:

Silver is known as a noble metal. Noble metals are those metals that are resistant to corrosion.

However, we can not say that silver is completely resistant to corrosion because silver can corrode when exposed to air and sulphur.

Exposure to air and  sulphur leads to the coating of the silver with a sulphide layer thereby making the metal to become tarnished and loose its metallic luster.

Strong nucleophile, good leaving group, polar aprotic solvent, methyl or primary halide. The correct answer is option: b.

In an SN2 reaction, a nucleophile attacks the carbon atom to which the leaving group is attached, while the leaving group departs from the molecule. The reaction proceeds in a single step, with the nucleophile and leaving group involved in the transition state. A strong nucleophile is required to attack the carbon atom, and a good leaving group is necessary to depart from the molecule. Methyl or primary halides are preferred substrates because they are less hindered, making the attack by the nucleophile easier. Option b is correct.

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Answer:

Given above are noble gases and other noble gases would be xenon, radon, oganesson, krypton.

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Answer: A

Explanation: just did it

JJ Thomson's interest in science and the study of the atom was influenced by his experiences and observations throughout his life.

JJ Thomson's interest in science and the study of the atom was shaped by several experiences and observations in his life. As a child, he displayed a natural curiosity and aptitude for scientific subjects. His father was a successful bookseller and encouraged Thomson's intellectual pursuits by providing him with access to a wide range of scientific literature.

Thomson attended the prestigious Cambridge University, where he was exposed to renowned scientists and the latest advancements in the field.

One significant experience that fueled Thomson's interest in the atom was his work on cathode rays. In the late 19th century, he conducted experiments with cathode ray tubes and observed that they produced a stream of negatively charged particles.

This led him to propose the existence of electrons, which were later confirmed by his famous experiment known as the "plum pudding model." Thomson's research on cathode rays and the discovery of electrons revolutionized the understanding of atomic structure.

Furthermore, Thomson's interest in science was also influenced by the prevailing scientific climate of the time. During the late 19th and early 20th centuries, there were numerous breakthroughs in the field of physics, including the discovery of X-rays by Wilhelm Roentgen and the formulation of the theory of electromagnetism by James Clerk Maxwell.

These advancements provided a fertile ground for Thomson's investigations and further motivated his interest in unraveling the mysteries of the atom.

In summary, JJ Thomson's interest in science and the study of the atom was shaped by his natural curiosity, access to scientific literature, exposure to eminent scientists at Cambridge University, his work on cathode rays, and the overall scientific advancements of his time. These experiences and observations laid the foundation for his groundbreaking discoveries in atomic physics.

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Answer:Group 5A or 15

Explanation:

Among the given substances, the substance which will solidify before the temperature reaches 0°C is benzene.

Freezing point of any liquid is that point at which the liquid will convert into solid state at the normal atmospheric pressure.

Among the given substances butane and nitrogen has freezing point less than 0°C, water has 0°C and benzene has more than 0°C. When we cool down the temperature of the container before the 0 degree celsiuc than the beaker in which benzene is present cools gradually.

Hence benzene will solidify before the temperature reaches 0°C.

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Plants are sprayed with water at night to absorb  the heat of freezing thereby keeping the plant warm and avoiding the overnight freeze.

One of the concerns that farmers have during winter is hot to keep their crops from freezing. When the crop freezes, yield of the crop could be affected in the long run.

It is common to spray the plant with water before night so that it can take away the heat of freezing thereby keeping the plant warm and avoiding the overnight freeze.

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Answer: The molecules are continually colliding with each other and with the walls of the container. When a molecule collides with the wall, they exert small force on the wall The pressure exerted by the gas is due to the sum of all these collision forces. The more particles that hit the walls, the higher the pressure. If a gas is heated up, its particles move around more quickly. They hit the walls of their container harder and more often. This increases the pressure. Sometimes the pressure gets so great that the container bursts.

Explanation:

Answer:

When a molecule collides with the wall, they exert small force on the wall The pressure exerted by the gas is due to the sum of all these collision forces. 

Explanation:

The molecules are continually colliding with each other and with the walls of the container. When a molecule collides with the wall, they exert small force on the wall The pressure exerted by the gas is due to the sum of all these collision forces. The more particles that hit the walls, the higher the pressure.

The chemical shift of an alkynyl carbon in 13C NMR spectroscopy is highly dependent on the electronic environment surrounding the carbon atom, and can vary greatly depending on the specific molecular structure.

The chemical shift of an alkynyl carbon in 13C NMR spectroscopy is highly dependent on the electronic environment surrounding the carbon atom. Generally speaking, alkynes tend to exhibit chemical shifts in the range of 70-90 ppm. However, this range can vary depending on the nature of the substituents on the alkyne.
For example, if the alkynyl carbon is part of an aromatic ring system, it may exhibit a chemical shift closer to the typical range for aromatic carbons (100-170 ppm). Alternatively, if the alkynyl carbon is part of a highly substituted alkene, it may exhibit a chemical shift closer to the typical range for alkene carbons (100-160 ppm).
Overall, the chemical shift of an alkynyl carbon in 13C NMR spectroscopy is highly dependent on the electronic environment surrounding the carbon atom, and can vary greatly depending on the specific molecular structure.

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Answer:

Covalent bonds are formed by the sharing of electrons between two non-metallic atoms. These bonds are typically stronger and more stable than ionic bonds and are found in compounds such as water, hydrogen, and carbon dioxide. Covalent bonds differ from ionic bonds in that they do not involve the transfer of electrons from one atom to another.

Explanation:

Fossils can form in three different ways is Preservation of original remains, Castings and permineralization.

The remnants or evidence of prehistoric life that have been successfully preserved by natural processes are known as fossils. Shells, bones, animal or microbe impressions in stone, exoskeletons, items stored in amber, petrified wood, coal, hair, oil, and Genetic traces are a few examples of fossils.

They provide as a direct link to historical ways of life, ecosystems, and climatic conditions. They show the historical evolution of life, the environment, and the climate, as well as the responses of living organisms to those changes. These lessons are particularly important at this time, as the contemporary world is evolving more and more. Nothing can ever replace a fossil.

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I think it's c I'm not sure

The student made a mistake because he did not convert a unit of volume from milliliters to liters. After all, molarity is defined as the number of moles of solute per liter of solution.

Answer: C=0.406M.C=0.406M.

Answer:

The magnesium atom is larger.

Explanation:

The magnesium atom is larger because it is on the left side of the Periodic Table (period 3 and group 2) where the atomic radius is larger.

Atomic radius is the distance from the center of the nucleus of an atom to the most external electron shell.

The greater the columbic attractions, the closer the protons in the nucleus are to the electrons in the outer layers, making the size of the atom smaller.

Answer:

it's double displacement reaction

Answer:

Double displacement reaction ( Metathesis)

Answer:

Hi army :D

Your answer is: to give a visual display of measurement precision

Explanation:

Answer:

A)

B) They are all compound substances

Explanation:

The salad and the glass of water with oil have two phases because their elements do not mix, we can see them separately. In the case of coffee with milk, there is only one phase because we can not see all the components separately, they are mixed in the solution.

They are all compound substances due to the fact that they are made of more than one element.

Answer:

the metal salts are more stable and less reactive than the pure metals

Explanation:

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Answer:B is the right answer

Explanation:

Hello There, I hope you are having a great day :) Your Question: Which is not a characteristic of asexual reproduction? I would say the answer is D the diverse offspring because they would not be a clone of there parnets.

Hopefully, that help you :)