Three metal spoons are on table. They are at room temperature. If the three spoons touch.
A. Heat will flow among the three spoons
B. Heat will flow between two spoons
C. No heat will flow among the spoons
D. Heat will flow from the spoons to the air

Answer is: covalent.

Covalent compound (for example methane) are usually bad electricity and heat conductors, because molecules aren far from each other, so heat transfer is less efficient.

They do not form ions and atoms are less positive and negative than in ionic compounds.

Ionic compounds are good good electricity and heat conductors, because ionic compounds (for example sodium chloride NaCl) have mobile ions (cations and anions) that are able to transfer electrical charge. This compounds also conduct heat, because the ions are next to each other, so energy can be transferred efficiently from one place to another.

The C3H8 sample has 2.82 x 1024 carbon atoms and a total mass of 68.8712 g.

Given that the number of H atoms in the C3H8 sample is 7.52 x 1024, calculating the number of propane (C3H8) molecules involves dividing that number by the amount of hydrogen atoms in a single C3H8 molecule, which is 8. This gives us the number of molecules in the sample as 9.4 x 1023 molecules.

As each propane molecule has 3 carbon atoms, the total amount of carbon atoms in the sample can be found by multiplying 9.4 x 1023 by 3, resulting in 2.82 x 1024 carbon atoms.

In order to find the total mass of the sample, we need to know the molar mass of propane, which is 44.097 g/mol. Using Avogadro's number (6.02 x 1023 molecules/mol), we can find the number of moles in the sample, which is 1.56 moles of propane. Multiplying this by the molar mass, we get that the total mass of the sample is 68.8712 g.

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C is obvious because no other choice has any closer answer

The path from ocean to river runoff involves evaporation, condensation, and precipitation in the water cycle, followed by surface runoff, snowmelt, or streamflow.

The path that moisture takes from the ocean to the runoff that forms a river involves several steps in the water cycle. The process begins with evaporation and sublimation of water from the ocean, which rises into the atmosphere. The moisture then condenses to form clouds and falls back to the Earth as precipitation. This precipitation can enter freshwater bodies or infiltrate the soil, and eventually make its way to the ocean through surface runoff, snowmelt, or streamflow.

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Answer:

The correct answer is: their composition.

Explanation:

The mineral classification is based on the chemical composition and internal structure, which together represent the essence of a mineral and determine its physical properties. According to the chemical composition, minerals are divided into classes according to the dominant anion or anionic group, for example, oxides, halides, sulphides and silicates, among others.

Minerals have the same anion or dominant anionic group in their composition, so they have family similarities and characteristics more clearly and strongly marked than those that share minerals that have the same dominant cation. Examples of this are carbonates, since they resemble each other more than copper ores.

Minerals related by the domain of the same anion tend to occur together in the same place or in similar geological deposits; for example, sulphides generally occur in associations close to deposits of the type of veins or replacement, while silicates form most of the rocks in the earth's crust.

A solution of sodium chloride in water is indeed a good conductor of electricity.

A conductor refers to a material or substance that allows the flow of electric charges or current through it. Conductors have properties that facilitate the movement of electrons, which are negatively charged particles, within the material.

Now, the statement that describes sodium chloride based on the given information is:

A solution of sodium chloride in water is a good conductor of electricity. Sodium chloride, commonly known as table salt, consists of clear, colorless crystals.

When sodium chloride is dissolved in water, it dissociates into sodium ions[tex](Na^+)[/tex]and chloride ions [tex](Cl^-)[/tex].These ions are responsible for the conductivity of the solution. Since ions are charged particles, they can move freely in the solution and carry electric current.

Therefore, as a result, sodium chloride in water is a good conductor of electricity.

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I believe that what happens here is that when those cells carrying those intercellular signals do no pass through the connections, actually the signal is passed through or are transferred to adjacent cells for signal transmission, hence the answer is:

B

I did the test and C. what correct. Could you please mark me brainiest?

Bronze's high shiny and soft properties was why ancient Egyptians were able

to use it to make mirrors.'

Bronze is an alloy which is formed from the combination of copper and tin.

They are used for different purposes such as:

In the ancient Egyptian period, they were used  in the production of mirrors

as a result of the shiny surface.

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The correct answer is option 2, that is, a star.  

Stars die as they consume all the fuel, which permits a star to go through the process of fusion. A star is formed majorly of helium and hydrogen. Once a star uses all the hydrogen, the star begins to die. When a normal-sized star dies, the core eventually cools into a white dwarf, and then into a black dwarf.  

White dwarf refers to a very dense and small star, which is usually of the size of a planet. A white dwarf is produced when a low-mass star has used all its central nuclear fuel and lost its outer enveloping as a planetary nebula.  

If a cell is seriously deprived of water, this lack of water would most likely affect the cell’s enzymes because:

Both the plant and animal cell needs water in order to perform their basic functions which include transport of materials, waste distribution, production of genetic information, and many more.

As a result of this, we can see that there would be a serious problem if any of these cells are deprived of water which would lead to the cytoplasm and plasma membrane to partially shut down because they would not be able to engage in protein synthesis and other important functions.

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The volume of the gas at STP is equal to 0.966 L.

The ideal gas law is described as an equation of the state of an ideal gas. This law states that the product of the volume and pressure of one mole gas is equal to the product of the gas constant and absolute temperature.

The mathematical expression of the ideal gas law is as follows:

PV = nRT

where n is the amount of substance, P is the pressure,  V is the volume,  and R is the gas constant.

Given, volume of gas, V = 806 ml = 0.806 L

The temperature of gas, T =  26° C = 299 K

The pressure of gas, P = 998 mmHg = 1.313 atm

The number of moles of given gas, n = PV/RT

n = 1.313 ×0.806/(0.082 × 299)

n = 0.043 mol

The temperature of gas at STP, T = 273.15 K, pressure at STP, P = 1 atm

The value of the gas constant, R = 0.082 atmL/K mol

Substituting the values n, R, P, and T in the ideal gas equation, we get:

1 × V = 0.043 × 0.082 × 273.15

V = 0.966 L

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The correct description of electron sharing between two oxygen atoms is "Each oxygen shares two electrons with each other."

Each oxygen atom has six valence electrons. When they bond to form an oxygen molecule (O2), they share two electrons each, resulting in a double covalent bond. This sharing allows each oxygen atom to achieve a stable octet configuration, resembling the configuration of a noble gas. Therefore, the correct answer is that each oxygen shares two electrons with each other.

A closed system permits only energy to enter or exit, not matter.

A closed system is a fundamental concept in physics and chemistry. It is defined as a system where matter cannot enter or exit, but energy can still be exchanged with its surroundings. For instance, consider a beaker covered with a glass lid. While heat can pass through the glass, water vapor cannot escape, thus maintaining the amount of matter inside the beaker constant. This helps in studying various thermodynamic processes without the interference of external matter exchange.

Answer:

Its d

Explanation: