Which function do aspen trees serve in mountain area?
A. producers
B. scavengers
C. primary consumers
D. secondary consumers

= 29,898.4375 Kg

Volume of a prism is given by the formula;

V = base area × height

   = 1.25 m × 1.25 m × 2.15 m

   = 3.359375 m³

Density = 8.9 g/cm³

This is equivalent to ; 8900 kg/m³

Therefore;

Mass = Density × volume

         = 8900 kg/m³ × 3.359375 m³

         = 29,898.4375 Kg

Answer:

3.0 x 104 kg

Explanation:

According to google, "As keratin cells naturally push upward through the skin, they die and then harden, turning into your hair or nails."

Mark brainliest if you can! Thanks

Answer: Option (C) is the correct answer.

Explanation:

Activation energy is defined as the minimum amount of energy required for a chemical reaction to start.

An activated complex is also known as transition state where bonds between the reactants are breaking and bonds between the products are forming.

For a chemical reaction, activation energy is required to result in the formation of activated complex.

Therefore, we can conclude that every chemical reaction require a certain amount of activation energy because forming the activated complex requires energy.

Answer:

c

Explanation:

i got it right on plato

i believe its A. the temperature of the liquid

Hey im happy to help!

your answer here will be:

D) The chemicals illegally dumped may cause lymphoma to occur at a higher rate.

Hope this helps, have an amazing rest of your day!

Answer:

The correct answer is option D) "The chemicals illegally dumped may cause lymphoma to occur at a higher rate".

Explanation:

In the graph "Occurrence of Lymphoma" it can be noticed that the lymphoma rate was higher for people living near the factory (local rate), but as times went by, the national rate started to be as high as the local rate. By analyzing this data it can be concluded that the chemicals illegally dumped may cause lymphoma to occur at a higher rate. The chemicals that affect people living locally started to affect people around the nation because they were illegally dumped. I attached the missing graph.

Answer:

P2 = 150.4 KPa

Explanation:

Gay-Lussac's Law:

at constant volume, the pressure of a gas varies directly with the temperature

∴ P1 = 55 KPa

∴ T1 = - 100.0°C ≅ 173 K

∴ T2 = 200°C ≅ 473 K

⇒ P2 = ?

⇒ P2 = (473 K)(55 KPa) / (173 K)

⇒ P2 = 150.4 KPa

The pressure of the gas when the temperature is increased to 200°C will be 150 kPa.

We can use Gay-Lussac's Law, which states that the pressure of a given mass of gas is directly proportional to its absolute temperature (in Kelvin) when the volume is kept constant. Mathematically, this can be expressed as:

[tex]\[ \frac{P_1}{T_1} = \frac{P_2}{T_2} \][/tex]

where [tex]\( P_1 \)[/tex] and [tex]\( T_1 \)[/tex] are the initial pressure and temperature, and [tex]\( P_2 \)[/tex] and [tex]\( T_2 \)[/tex] are the final pressure and temperature, respectively.

First, we need to convert the temperatures from Celsius to Kelvin:

Initial temperature [tex]\( T_1 \)[/tex] in Kelvin is:

[tex]\[ T_1 = -100.0^\circ C + 273.15 = 173.15 \text{ K} \][/tex]

Final temperature [tex]\( T_2 \)[/tex] in Kelvin is:

[tex]\[ T_2 = 200^\circ C + 273.15 = 473.15 \text{ K} \][/tex]

Now we can apply Gay-Lussac's Law to find the final pressure [tex]\( P_2 \)[/tex]:

[tex]\[ \frac{55 \text{ kPa}}{173.15 \text{ K}} = \frac{P_2}{473.15 \text{ K}} \][/tex]

Solving for [tex]\( P_2 \)[/tex]:

[tex]\[ P_2 = \frac{55 \text{ kPa} \times 473.15 \text{ K}}{173.15 \text{ K}} \][/tex]

[tex]\[ P_2 = \frac{25923.25 \text{ kPa}}{173.15} \][/tex]

[tex]\[ P_2 \approx 150 \text{ kPa} \][/tex]

The answer would be option D. can only be seperated by chemical means

The answer is C

A mixture is a substance that is made up of two or more materials that can be separated by physical means.

Physical means of separating mixtures include sorting, evaporation, filtration, screening, magnetism, boiling, and chromatography.

B would be right. Liquids are closer together than gases and liquids move slower.

Taking into account the definition of liquid state and gaseous state, the correct option is option b. They are closer together and slower moving than the particles in a gas.

Matter comes in three states or forms of matter: solid, liquid, and gas.

The solid state is characterized because the particles that compose it are very close together and in more or less fixed positions; this makes the distance between the particles practically unchanged.

This is due to the fact that the attractive forces are very strong, so the shape and volume are constant.

In the case of the liquid state, the forces between the particles are weaker than in the solid state, which allows the particles to have some freedom of rotation and translation, in addition to vibration.

That is why liquids, unlike solids, take variable forms, depending on the container that contains them and can also flow easily.

In the gaseous state, the attractive forces are practically zero, so they occupy all the available space, and they move much faster. In addition, they can be compressed and take the shape of the container that contains them.

In summary, the correct option is option b. They are closer together and slower moving than the particles in a gas.

Learn more:

CH3CH3 boils at -88.6°C.

At typical atmospheric pressure (1 atmosphere or 101.3 kPa), the boiling point of [tex]CH_3CH_3[/tex] , commonly known as ethane, is approximately −88.6 °C (−127.5 °F).

Ethane is a simple hydrocarbon composed of two carbon atoms linked by a single covalent link as well as three hydrogen atoms on either side of each carbon atom. At normal room temperature and atmospheric pressure, ethane is a gas.

Ethane has a low boiling point because the intermolecular interactions between its molecules are weak. The London dispersion force, a result of transient variations in electron distribution, holds the ethane molecules together. The boiling point is low because these forces are often less than those of hydrogen bonding or dipole-dipole interactions.

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ANSWER:

its because the ocean has a higher heat capacity.

~batmans wife dun dun dun...aka ~serenitybella

Water is a slow conductor of heat, thus it needs to gain more energy than the sand or dry land in order for its temperature to increase. On the other hand, soil loses its heat much faster. ... Not only do the oceans cover more than 2/3 of the Earth's surface, they also absorb more sunlight and store more heat.

Law of Conservation of Energy and Mass. The law of conservation of energy, a fundamental concept of physics, states that the total amount of energy remains constant in an isolated system. It implies that energy can neither be created nor destroyed, but can be change from one form to another.

D. Energy is transferred when atoms are rearranged

D. Endothermic because it needs the sunlight's energy!

Good Luck!!! Hope I helped!

Answer: The correct answer is Option D.

Explanation:

Endothermic reactions are defined as the reactions in which energy is absorbed by the system. The total enthalpy change of the reaction comes out to be positive.

Exothermic reactions are defined as the reactions in which energy is released by the system. The total enthalpy change of the reaction comes out to be negative.

Decomposition reaction is defined as the reaction in which a large substance breaks down into two or more smaller substances.

Photosynthesis is defined as the process by which the producers make glucose molecule with the help of carbon dioxide and water in the presence of sunlight.

The chemical equation representing this reaction follows:

[tex]6CO_2+6H_2O+\text{light}\rightarrow C_6H_{12}O_6+6O_2[/tex]

As, the energy term is written on the reactant side. This means, that the energy is getting absorbed by the system and is considered as an endothermic reaction.

Hence, the correct answer is Option D.

Answer:

1.04 L

Explanation:

Charles law states that for a fixed mass of gas, volume of gas is directly proportional to the absolute temperature at constant pressure.

[tex]\frac{V1}{T1} = \frac{V2}{T2}[/tex]

where V1 is the volume and T1 is absolute temperature at first instance

and V2 is volume and T2 is absolute temperature at the second instance

Absolute temperature is temperature in the kelvin scale

T1 - 25 °C + 273 = 298 K

T2 -   -15 °C + 273 = 258 K

substituting the values in the equation

[tex]\frac{1.2 L}{298K} = \frac{V2}{258K}[/tex]

V2 = 1.04 L

when the temperature is -15 °C the volume is 1.04 L

Lizards are reptiles that are closely related to snakes. Like all reptiles, lizards have scaly skin and are ectotherms—cold-blooded animals whose body temperature varies with the temperature of their surrounding environment. Most lizards are native to the tropics, but a number of species are found in temperate regions.Chameleons, iguanas, skinks, monitors, anoles, and geckos are some of the many different types of lizards.

A number of lizard species have adapted to life in the desert. Some desert lizards have toes fringed with spiny scales to help them run across the sand without sinking. Others burrow into the sand to escape the desert's intense heat, to hide from predators, or to search for small animals that they prey upon. Some burrowing lizards even have clear scales on their eyelids that protect their eyes but still allow them to see while they move under the sand.

I hope you find it helpful!!!!!

We can calculate the amount of Oxygen in this volume using the Ideal Gas Equation, PV = nRT, where "P" is the pressure, "V" is the volume, "n" is the number of moles of material, "R" is the gas constant, and "T" is the temperature in Kelvin. To properly answer this problem, all of the information needs to be converted into the proper units. Fortunately, everything except the volume and temperature is in the correct units for the Ideal Gas Equation; the volume can be adjusted by converting mL to L (x1000) and the temperature can be adjusted by adding 273.15 to the current temperature (conversion from Celsius to Kelvin).

Plugging in all the values, we find that:

PV = nRT

(2.7 atm)(0.3 L) = n(0.0821*)(313.15 K)

n = 0.0315 mol Oxygen

Under these conditions, 0.0315 moles of oxygen can be placed in this volume.

Hope this helps!

* - the units are liters times atmospheres divided by moles times Kelvin.

C. 352.6 m/s

Velocity of sound is dependent on temperature. An increase in temperature, increases the velocity of sound.

To calculate the velocity of the sound wave, we use this formula:

V = 331 + [0.6*T]; Where V is the velocity and T represents temperature.

When the temperature is 36 degree Celsius, we have 

V = 331 + [0.6 * 36]

V = 331 + 21.6 = 352.6 

Therefore,

 V = 352.6 m/s.

Answer:

B. Wood Burning

Explanation:

When you boil water, it is still water, just in vapor form

When glass breaks, it is still glass.

when frozen water (ice) melts, it is still water.

When you mold iron, it is still iron.

When you burn wood, it is not still wood. It is a new form of matter. It is ash.

I hope I helped!

Let me know if you need anything else!

~ Zoe

The definition that explains H₂O as acid is Bronsted-Lowry concept, and Lewis concept. Thus, options B and C are correct.

An acid is given as the characteristics of a compound to liberate the hydrogen ion in the solution. The acid have the pH lower than 7 in the pH scale.

According to Bronsted Lowry concept an acid is the donor of the proton. Thus, since H₂O gives the Hydrogen ion in the solution than it is considered as acid.

According to the Lewis concept, an acid is the acceptor of the electron pair. The hydrogen in the water accepts the electron pairs thereby it is a Lewis acid.

Thus, the concepts that explains H₂O as acid is Bronsted-Lowry concept, and Lewis concept. Thus, options B and C are correct.

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Answer: b, c

Explanation:

The type of bond that exists between the two carbon atoms would be a single covalent bond.

Carbon atoms generally have 4 valence electrons and can therefore form bonds with multiple atoms by sharing the electrons with the atoms to reach an octet state. It also has the capacity to form double or triple covalent bonds with different atoms, including itself.

Out of the 4 valence electrons and covalent bonds that can be formed by the carbon, 3 have been formed with hydrogen. Thus only one bond is left and that is what the carbon atom can pick up. Hence, only a single covalent bond can be formed.

More on the carbon atom can be found here:  https://brainly.com/question/4704641

B) H30+ is the answer, hope that helped

Answer: Option (B) is the correct answer.

Explanation:

A hydronium ion is an ion that contains three hydrogen atoms and one oxygen atom. Formula of a hydronium ion is [tex]H_{3}O^{+}[/tex].

Whereas water is a molecular compound with chemical formula [tex]H_{2}O^[/tex].

Hydroxide ion has formula [tex]OH^{-}[/tex] and a hydrogen ion has formula [tex]H^{+}[/tex].

Therefore, we can conclude that out of the given options [tex]H_{3}O^{+}[/tex] is a hydronium ion.

Answer:

A

Explanation:

Final answer:

The gases in the thermosphere are heated directly by the sun, as this layer directly absorbs high energy solar radiation leading to increased temperatures.

Explanation:

The atmospheric gases in the thermosphere are heated directly by the sun. The thermosphere is the layer of the Earth's atmosphere that is directly exposed to the sun's radiation. As solar radiation passes through the atmosphere, shortwave radiation reaches the thermosphere where it is absorbed by the sparse gas molecules present, causing temperatures to rise considerably.

Unlike the lower layers of the atmosphere, such as the troposphere, where heat is primarily transferred from the Earth's surface through longwave radiation, the thermosphere receives its heat directly from the sun, due to the high energy ultraviolet and X-ray solar radiation absorbed by its gases. This direct heating is essential in understanding the thermal dynamics of the upper atmosphere.

Answer:

adds more liquid

Explanation:

Final answer:

Bacteria help plants grow by fixing nitrogen, decomposing organic matter, and improving soil fertility, in a mutualistic relationship where they also gain nutrients from plant photosynthates.

Explanation:

Bacteria play a crucial role in helping plants grow by engaging in a variety of symbiotic relationships and processes. One key interaction is the presence of nitrogen-fixing bacteria such as rhizobia, which live in nodules on the roots of legumes and convert atmospheric nitrogen into forms that plants can use as nutrients, effectively supplying plants with an endless supply of nitrogen. This process naturally fertilizes the soil, promoting plant growth. In addition to this, many species of bacteria decompose organic matter, releasing nutrients back into the soil, which plants can then absorb. Bacteria also benefit from this relationship by using photosynthates, which are substances produced during photosynthesis by the plants. This mutualistic relationship is critical for the soil’s fertility and the overall health of the ecosystem.

The sun is made up of hot gas.

The sun is a star and is the brightest object in the sky. The sun is made up of burning gasses. The sun's light and heat comes from its core which is in the center of it. Flares of hot gas shoot out from the sun's surface.

We can use the dilution formula to find the volume of the diluted solution to be prepared

c1v1 = c2v2

Where c1 is concentration and v1 is volume of the concentrated solution

And c2 is concentration and v2 is volume of the diluted solution to be prepared

Substituting the values in the equation

15 M x 25 mL = 3 M x v2

v2 = 125 mL

The 25 mL concentrated solution should be diluted with distilled water upto 125 mL to make a 3 M solution

To dilute 25 mL of 15 M nitric acid to prepare a 3 M solution, the final volume after dilution should be c. 125 mL.

To dilute 25 mL of 15 M nitric acid to prepare a 3 M solution, you can use the formula:

C₁V₁ = C₂V₂

Where C₁ = concentration of the stock solution, V₁ = volume of the stock solution, C₂ = final concentration, and V₂ = final volume after dilution.

To prepare a 3 M solution, you need to dilute the 25 mL of 15 M nitric acid to a final volume of 125 mL.

Correct question is: To what volume should 25ml of 15m nitric acid be diluted to prepare a 3M solution

a. 120 ml

b. 130 ml

c. 125 ml

d. 135 ml

= 47.04 L

1 mole of a gas at s.t.p occupies a volume of 22.4 liters

Therefore;

2.1 moles of Cl2 will occupy;

2.1 moles × 22.4 L

= 47.04 L

To find the number of sulfur atoms in 64g of sulfur, calculate the moles by dividing the mass by sulfur's molar mass (32 g/mol), then multiply by Avogadro's number to get 1.2044 x 10^24 sulfur atoms.

To calculate the number of sulfur atoms in 64g of sulfur, we use the concept of molar mass and Avogadro's number. The molar mass of sulfur (S) is approximately 32 grams per mole. So, to find the number of moles of sulfur in 64g, we divide the mass by the molar mass:

Number of moles of S = mass of S (g) / molar mass of S (g/mol)

Number of moles of S = 64g / 32g/mol = 2 moles

Now, using Avogadro's number (6.022 x 1023 atoms/mole), we can find the total number of atoms:

Number of sulfur atoms = number of moles of S x Avogadro's number

Number of sulfur atoms = 2 moles x 6.022 x 1023 atoms/mole = 1.2044 x 1024 atoms

So, there are 1.2044 x 1024 sulfur atoms in 64g of sulfur.

The answer to this is C.

C. Liquid. The Earth is mostly water, namely ocean water which is liquid.

Ammonia is produced by the reaction of hydrogen and nitrogen. N2(g)+3H2(g)→2NH3(g)ammonia How many moles of N2 reacted if 0.65mole NH3 is produced? How many moles of NH3 are produced when 1.2moles H2 reacts? 2.In the acetylene torch, does this answer your question?