A teacher has given a group assignment to classify certain things as matter or energy. Most of the students in the group have decided on the following classification:

Matter: atoms, sugar, water, air
Energy: heat, potential, kinetic, sound

However, there is one student who is arguing that all of the things listed in both categories can be classified as energy, and so that must mean that they can all be classified as matter, too.

Which of the following provides the best scientific explanation as to why the things classified as energy are not also classified as matter?

In order for a solute to dissolve in water the solute particles must be strongly attracted to water molecules.

To know more about molecule visit:

https://brainly.com/question/19922822

#SPJ4

Answer:

Protons are a type of subatomic particle with a positive charge

Neutrons are a type of subatomic particle with no charge (they're neutral).

Answer:

Capital Formation:

Natural Resources:

Marketable Surplus of Agriculture

Conditions in Foreign Trade:

Explanation:

Answer:

Mass extinctions happen because of climate change, asteroid impacts, massive volcanic eruptions or a combination of these causes.

Explanation:

Explanation

To find the molar mass of sulfur dihydride, you will need to find the sum of all the atomic masses making up sulfur dihydride.

sulfur dihydride is H2S.

Atomic mass of H = 1,00784 u

Atomic mass of S = 32,065 u

Molar mass = (1.00784 x 2) + 32,065 = 34.081 g/mol

Answer

34.081 g/mol

Answer:

4.6 kJ

Explanation:

The energy required to raise the temperature of a substance from its initial temperature to a final temperature is given by:

Q = mcΔT

Where Q = energy, c = specific heat capacity of substance and ΔT = final temperature - initial temperature

Given that:

c = 2.1 kJ/kg°C, m = 87.5 = 0.0875 kg, ΔT = final temperature - initial temperature  = 0 - (-25) = 25

Q = 0.0875 * 2.1 *25

Q = 4.6 kJ

Answer:647.61976 grams

Explanation:1 moles NaCI to grams = 161.90494 grams 2 moles NaCI to grams = 323.80988 grams 3 moles NaCI to grams = 485.71482 grams 4 moles NaCI to grams = 647.61976 grams

Answer

1.50 mol

Explanation

Given:

Initial volume, V₁ = 25.0 L

Mass of CH4 gas in 25.0 L container = 40 g

Final volume, V₂ = 15.0 L

From the Periodic Table; molar mass of CH4 = 16.04 g/mol

What to find:

The new amount in mole.

Step-by-step solution:

According to Avogadro’s law: For a confined gas, the volume (V) and number of moles (n) are directly proportional if the pressure and temperature both remain constant. That is:

n₁ = Mass/Molar mass = (40.0g/16.04 g/mol) = 2.493765586 mol

n₂ is the new amount in mole and can be calculated as follows:

The new amount in moles is 1.50 moles

The process in which a nucleus spontaneously breaks down by emitting radiation is known as radioactive decay.

During this process, the unstable nucleus emits radiation in the form of alpha particles, beta particles, or gamma rays until it becomes stable. Radioactive decay is a random process and occurs at a specific rate, known as the half-life, which varies for each radioactive substance.

This process is used in many applications, including carbon dating and medical imaging. It is important to note that fusion and transformation are not related to radioactive decay, as they refer to the process of combining two nuclei to form a heavier nucleus and the process of changing one element into another, respectively. Answering more than 100 words, we can say that radioactive decay is a fundamental process that helps us understand the behavior of atoms and how they change over time.

To know more about radioactive decay visit:

https://brainly.com/question/30416114

#SPJ11

Explanation:

In chemistry, thermodynamics, and many other related fields, phase transitions (or phase changes) are the physical processes of transition between the basic states of matter: solid, liquid, and gas, as well as plasma in rare cases.

Answer:

In chemistry, thermodynamics, and many other related fields, phase transitions are the physical processes of transition between the basic states of matter: solid, liquid, and gas, as well as plasma in rare cases. A phase of a thermodynamic system and the states of matter have uniform physical properties.

Explanation:

a. Silver coin - Element (Silver is a pure element and is not chemically combined with any other element in a silver coin)

b. Air - Mixture (Air is a mixture of gases, primarily nitrogen and oxygen, with trace amounts of other gases and particles)

c. Coffee - Mixture (Coffee is a mixture of various compounds such as water, caffeine, and organic compounds that give it its flavour and aroma)

d. Soil - Mixture (Soil is a mixture of various substances such as minerals, organic matter, water, and air)

My everyday experiences influenced my response because I have come across these examples in my daily life and have been taught about them in science classes. For example, I know that air is composed of different gases and particles, and that soil is made up of a mixture of substances, including minerals and organic matter. Similarly, I know that a silver coin is made of pure silver and that coffee is made of various compounds.

To learn more about Compounds click here:

https://brainly.com/question/14658388

#SPJ4

Answer:

Yes, A  toothpick can be a good model for showing the strength and brittleness of salt as It will break and splinter just like salt.

What are the properties of  salt ?

Salts are ionic in nature due to the presence of ions.

They are brittle, hard and crystalline solids.

Salt is white, odorless and it has a salty taste.

Toothpick will break and splinter just like salt, exclamation, because it breaks easy and if we use a hammer on a tooth pick its gonna break and splinter just like salt.

Therefore , A  toothpick can be a good model for showing the strength and brittleness of salt as It will break and splinter just like salt.

Explanation: hope this helps

Answer:

C₂H6

Explanation:

Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). Option A

A hydrocarbon is a compound that consists of only carbon and hydrogen atoms. It is important to identify the formula that represents a hydrocarbon among the given options:

A) C₂H6: This formula represents ethane, which is a hydrocarbon. Ethane consists of two carbon atoms bonded together with single bonds and six hydrogen atoms.

B) C₂H5OH: This formula represents ethanol, which is not a hydrocarbon. Ethanol contains a hydroxyl group (-OH), indicating the presence of oxygen in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.

C) C₂H5Cl: This formula represents ethyl chloride, which is not a hydrocarbon. Ethyl chloride contains a chlorine atom (Cl) in addition to carbon and hydrogen atoms. It is a haloalkane, not a hydrocarbon.

D) C₂H6O: This formula represents ethanol, which, as mentioned before, is not a hydrocarbon. Ethanol contains an oxygen atom (O) in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.

Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). It consists only of carbon and hydrogen atoms, making it a suitable representation of a hydrocarbon.

In summary, the formula C₂H6 (option A) represents a hydrocarbon, while the other options contain additional elements (oxygen or chlorine) that make them non-hydrocarbon compounds. Option A

For more such questions on hydrocarbon visit:

https://brainly.com/question/21281906

#SPJ8

Answer:

electric charge

Explanation:

Electric charge is a physical property of matter that imparts a force on charged matter when placed in an electromagnetic field. Charge can be positive or negative (typically carried by protons and electrons, respectively). Similar charges repel and dissimilar charges attract.

Answer:Electric Charge I hope this helpful

Explanation:

Electric Charge. Electrical property of matter that creates electric/magnetic forces and interactions.Electric charge is a physical property of particles or objects that causes them to attract or repel each other without touching. All electric charge is based on the protons and electrons in atoms. A proton has a positive electric charge, and an electron has a negative electric charge.

Answer:

The answer to this question is C; ultraviolet radiation

Explanation:

The the reason for this is because it carries more energy per photon than visible light does. Light travels at a speed of 299,792 kilometers per second (about 186,282 miles per second).

The branch of chemistry that identifies NO2 responsible for acid rain is environmental chemistry. Environmental chemistry is the study of chemical processes and their effects on the environment. It is a field of chemistry that is concerned with the environmental impact of chemical substances, both natural and human-made.

The role of NO2 in acid rain has been extensively researched, and it has been determined that it is one of the primary pollutants that contribute to the formation of acid rain. When NO2 combines with water, it forms nitric acid, which is a component of acid rain. This is the reason why environmental chemists focus on studying the effects of NO2 on the environment.

The branch of chemistry that deals with the study of chemical processes and their impact on the environment is environmental chemistry. This field of chemistry identifies NO2 as the main answer responsible for acid rain. Nitric acid, which is formed when NO2 combines with water, is a key component of acid rain. Environmental chemists focus on studying the effects of NO2 and other pollutants on the environment.

To know more about chemical visit:

brainly.com/question/29240183

#SPJ11

(a) The balanced chemical equation for the synthesis reaction of Cl2(g) with Zn(s) is:

Zn(s) + Cl2(g) -> ZnCl2(s)

The molecular formula for zinc is Zn, and the molecular formula for chlorine is Cl2. In the balanced equation, the subscript 2 in Cl2 indicates that there are two chlorine atoms bonded together as a diatomic molecule. When zinc reacts with chlorine gas, it forms zinc chloride (ZnCl2), where one zinc atom combines with two chlorine atoms to create a stable compound.

(b) The balanced chemical equation for the synthesis reaction of Cl2(g) with Ga(s) is:

2 Ga(s) + 3 Cl2(g) -> 2 GaCl3(s)

The molecular formula for gallium is Ga, and the molecular formula for chlorine is Cl2. In the balanced equation, the coefficient 2 in front of Ga indicates that two gallium atoms react with three molecules of chlorine gas (Cl2). This reaction produces two molecules of gallium trichloride (GaCl3), where each gallium atom combines with three chlorine atoms.

(c) The balanced chemical equation for the synthesis reaction of Cl2(g) with Rb(s) is:

2 Rb(s) + Cl2(g) -> 2 RbCl(s)

The molecular formula for rubidium is Rb, and the molecular formula for chlorine is Cl2. In the balanced equation, the coefficient 2 in front of Rb indicates that two rubidium atoms react with one molecule of chlorine gas (Cl2). This reaction forms two molecules of rubidium chloride (RbCl), where each rubidium atom combines with one chlorine atom.

(d) The balanced chemical equation for the synthesis reaction of Cl2(g) with Mg(s) is:

Mg(s) + Cl2(g) -> MgCl2(s)

The molecular formula for magnesium is Mg, and the molecular formula for chlorine is Cl2. In the balanced equation, there are no coefficients written explicitly in front of Mg and Cl2. This indicates that one magnesium atom reacts with one molecule of chlorine gas to form one molecule of magnesium chloride (MgCl2), where the magnesium atom combines with two chlorine atoms.

To know more about synthesis reaction , refer here :

https://brainly.com/question/21106703#

#SPJ11

Answer: Predominant tropical easterly winds sweep across the central and southern portions of the state, keeping the temperatures mild

Explanation:

bc

The lines in a line graph aid in the fairly early detection of trends, allowing the viewer to make predictions about the data that has not yet been recorded.These are appropriate for illustrating the data points since, given one variable, the other is simple to ascertain.

A line graph, often known as a line chart, is a visual representation of data that is continuously changing over time.

There are two axes. in a line graph, the occurrences and categories being compared throughout time are shown on the x-axis (abscissa), and the scale, which is a group of integers that reflects the data and is divided into equal intervals, is shown on the y-axis (ordinate).

Depending on the data, the graph's lines may either decline or ascend. It is practical to plot time graphs along the x/y axis since it shows the rise and fall of data points in great detail.

The reader may readily see changes in one group over time by choosing the appropriate scales for each axis (time on the x-axis and change is measured on the y-axis).

To refer more about line graph, refer the link below:

https://brainly.com/question/23680294

#SPJ1

\

Answer:

animals

plants

Explanation:

Polysaccharides are complex organic sugars formed from simple sugars called monosaccharides.

Human beings can digest the polasaccharides found in many plants and animals without qualms.

However, human beings lack the enzymes required for the digestion of plant fibers. As such human beings can not digest plant fibers. The excrete them out in feces.

Thus the polysaccharide that can not be digested by people are plant fibers.

Answer:

volume is the amount of space in a certain object