An ecosystem is a term used by scientists to describe a specific level of organization in an environment. Which of the
following lists make up an ecosystem? (AKS 6a)
A soil, air, sunlight, rocks, rain
O B. Different populations of wildebeest
O C. Leaopards, giraffes, antelope, hyenas
OD. Rain, grass, worms, jackals, lions, sunlight
Answers
An ecosystem is an interconnected set of living and non-living components that interact and influence each other to form a functional unit.
Here all options are correct
As such, it is a complex system of energy and material exchanges between its components. A list of components that make up an ecosystem can include soil, air, sunlight, rocks, rain, and different populations of living organisms. The living components of an ecosystem include plants, animals, and microorganisms, such as worms and jackals. These organisms interact and depend on each other for survival, such as the leopards, giraffes, antelope, and hyenas that rely on the grass and other plants that are watered by the rain.
The sunlight provides energy for photosynthesis, which is essential for the production of food and oxygen. The rocks, soil, and air in the environment provide the physical structure that allows different organisms to interact and thrive. All of these components contribute to the health of an ecosystem, and each component plays an important role in maintaining the balance of the ecosystem.
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Related Questions
Question 25 points)
Obsidian is a glassy black igneous rock. A sample of obsidian is shown.
Which type of rock forms in a similar manner as obsidian but at a slower
rate?
Oa
Oь
Ос .
Od
schist, which forms under extreme heat and pressure
conglomerate, which forms when different-sized sediments cement together
gypsum, which forms when water evaporates and leaves behind minerals
granite, which forms as magma cools deep underground
Answers
Answer:
Granite
Explanation:
Answer:
Granite
Explanation:
Igneous forms when rock is cooled and hardens by Magma.
And the option granite, which forms as magma cools deep underground
Hope it helps have a Good Day
Flowing water, wind, sunlight, and nuclear materials are all resources that are used to generate electrical energy. Hydroelectric, wind, solar, and nuclear power stations are not believed to directly impact the global climate because
A.
they all use renewable energy resources and do not negatively impact ecosystems.
B.
they do not release any type of pollution into their surrounding environments.
C.
they are able to generate more electrical energy than other types of power stations.
D.
they do not directly release greenhouse gases into the atmosphere.
Answers
Hydroelectric, wind, solar, and nuclear power stations are not believed to directly impact the global climate because they all use renewable energy resources and do not negatively impact ecosystems.
What is an ecosystem?
Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system.
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The motion of particles creates a heat energy. True or false
Answers
True. Thermal energy, which is quantified as heat, is the movement of particles inside a material. Particles exchange energy in the form of heat as they travel more quickly or collide with one another.
Hence, thermal energy may be produced by the movement of particles.
The movement of particles within a material results in the production of thermal energy, often known as heat energy. Kinetic energy, which occurs when particles travel more quickly, or potential energy, which occurs when particles vibrate more quickly, might cause this movement. As particles contact, heat is transferred from one particle to the next, and this energy transfer lasts until the substance reaches thermal equilibrium. The temperature and quantity of heat energy within the material increase with particle mobility. Understanding this concept is crucial for comprehending a variety of phenomena, such as heat transport, thermodynamics, and the behaviour of matter in different states.
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Which component is reduced during the electrolysis of brine?
A. sodium ions
B. chloride ions
C. water
D. sodium hydroxide
Answers
Answer:
During the electrolysis, hydrogen and chloride ions are removed from solution whereas sodium and hydroxide ions are left behind in solution. This means that sodium hydroxide is also formed during the electrolysis of sodium chloride solution.
Answer:
water....
Explanation:
gradpoint
1. Describe what happens to water particles as you increase/decrease the temperature/pressure? (hint: movement/speed, attraction, density, volume, state of matter)
2. Describe and explain what happens to balloons when they are heated/cooled
3. Describe what happens to a cold beverage container on a hot day?
4. Explain how a glass (mercury) thermometer works.
Answers
1) The speed of the particles would increase when heated
2) The balloon would expand when heated and contract when cooled.
3) On a hot day, the pressure of the gas in a beverage increases
4) The mercury thermometer works by expanding or contracting in response to temperature change.
What is effect of temperature?We know that one of the effects of temperature is that it is able change the molecular motion of an object. Thus the molecules of an object are able to move faster when heat is applied and they are able to slow down when the heat is removed.
This is why a balloon would have a greater volume when the temperature is increased as the gas molecules spread out. The volume would reduce or decrease when the temperature is reduced.
Also, on a hot day, a beverage would tend to be more fuzzy as the pressure of the gas in the beverage would increase as the temperature is increased.
Lastly, when we use the mercury thermometer, the volume of the mercury would increase and this is the reason for the expansion of the mercury during temperature measurement.
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_________ is the mechanical separation of a mixture based upon the sizes of the mixtures components.
Answers
Answer:
Sieving
Explanation:
Sieving is a mechanical separation technique which depends on the relative sizes of particles in the mixture.
A mesh is used to discriminate between particle sizes. Particles in the mixture which are larger than the mesh size do not pass through the sieve, hence particles whose size is less than that of the mesh are separated from the rest of the particles in the mixture.
How do the atomic number and the mass number of an element
change after beta decay?
A. Atomic number stays the
same; mass number
increases by 1.
C. Atomic number increases by
1; mass number stays the
same.
B. Atomic number stays the
same; mass number
decreases by 1.
D. Atomic number decreases by
1; mass number stays the
same.
Answers
Answer:
A.
Explanation:
Part A Fluoroacetate functions as a poison by what mechanism? - The compound binds very tightly to but does not form a covalent complex with aconitase. - The compound forms a covalent complex with the aconitase. - This compound is first converted to 2-fluorocitrate, which subsequently inhibits aconitase. - Aconitase converts this compound to a reactive species that covalently modifies the next enzyme in the citric acid cycle
Answers
The mechanism by which Fluoroacetate functions as a poison involves the compound being first converted to 2-fluorocitrate, which subsequently inhibits aconitase.
This inhibition disrupts the citric acid cycle, which is necessary for cellular respiration and energy production. Fluoroacetate does not form a covalent complex with aconitase, but rather binds tightly to it. This binding ultimately leads to the inhibition of aconitase and disruption of the citric acid cycle, making it a potent and deadly poison. Fluoroacetate binds very tightly to but does not form a covalent complex with aconitase, preventing it from functioning. This process leads to the accumulation of citrate, which is then converted to 2-fluorocitrate by hydrolysis. 2-fluorocitrate then inhibits aconitase, leading to a decrease in the amount of ATP production. Ultimately, this leads to cellular death due to a decrease in ATP production.
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3 Ca(OH)2 + 2 H3PO4 → 6 H2O + Ca3(PO4)2
How many moles of H2O would be produced if 5.2 moles of H3PO4 are reacted with excess calcium hydroxide?
2.6 moles H2O
11 moles H2O
15.6 moles H2O
7.8 moles H2O
Answers
Answer:
15.6 moles
Explanation:
For every 2 moles of H3PO4 that is reacted, 6 moles of H2O are produced.
So if 5.2 moles of H3PO4 are reacted with calcium hydroxide, calculate the moles of H2O produced by this:
5.2 moles H3PO4 * (6 moles H2O / 2 mole H3PO4) = 15.6 moles H2O
Therefore 15.6 moles of H2O would be produced if 5.2 moles of H3PO4 are reacted with calcium hydroxide.
What unit is used for atomic mass
Answers
Answer is daltons
Atomic weight is measured in atomic mass units (amu), also called daltons.
Atomic Mass
Masses of individual atoms are very, very small. Using a modern device called a mass spectrometer, it is possible to measure such minuscule masses. An atom of oxygen-16, for example, has a mass of 2.66 × 10 -23 g. While comparisons of masses measured in grams would have some usefulness, it is far more practical to have a system that will allow us to more easily compare relative atomic masses. Scientists decided on using the carbon-12 nuclide as the reference standard by which all other masses would be compared. By definition, one atom of carbon-12 is assigned a mass of 12 atomic mass units (amu). An atomic mass unit is defined as a mass equal to one twelfth the mass of an atom of carbon-12. The mass of any isotope of any element is expressed in relation to the carbon-12 standard. For example, one atom of helium-4 has a mass of 4.0026 amu. An atom of sulfur-32 has a mass of 31.972 amu.
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true or false a neutral atom must have the same number of neutrons and protons
Answers
What do symbols tell you about the conditions of the reactions shown to the right
Answers
They convey specific details about the reactants, products, physical states, and reaction conditions. Here's what symbols can tell you:
Reactants and products
Physical states
Catalysts
Temperature and pressure conditions
Symbols in chemical reactions provide important information about the conditions under which the reactions occur. They convey specific details about the reactants, products, physical states, and reaction conditions. Here's what symbols can tell you:
Reactants and products: Chemical formulas of reactants and products are represented by symbols, which indicate the identities of the substances involved in the reaction.
Physical states: Symbols such as (g) for gas, (l) for liquid, (s) for solid, and (aq) for aqueous solution indicate the physical state of the substances. This information helps in understanding the phase changes and solubility of the reactants and products.
Catalysts: Symbols like Pt, Ni, or enzymes indicate the presence of catalysts in the reaction. Catalysts facilitate the reaction without being consumed and are not included in the overall stoichiometry.
Temperature and pressure conditions: Symbols like ΔH (enthalpy change) and ΔS (entropy change) indicate temperature and energy changes associated with the reaction. Additional symbols may represent specific temperature or pressure conditions.
Overall, symbols in chemical reactions provide concise information about the substances involved, their physical states, and any special conditions or catalysts influencing the reaction. Understanding these symbols helps in interpreting and analyzing chemical equations.
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Explain why pentane has a higher boiling point than butane
Answers
Answer: Larger molecules have stronger London forces.
Explanation:
Pentane therefore has a stronger force than butane.
-. Convert 54 m to its equivalent measurement in cm.
Answers
Answer:
5400 cm
Explanation:
\( \huge \because \: 1 \: m = 100 \: cm \\ \\ \huge \therefore \: 54 \: m = 54 \times 100 \\ \\ \: \huge \therefore \: 54 \: m= 5400 \: cm\)
A compound contains only carbon, hydrogen, and oxygen. Combustion of 10.68 mg of the compound yields 16.01 mg and 4.37 mg . The molar mass of the compound is 176.1 g/mol. What are the empirical and molecular formulas of the compound
Answers
Answer: See below
Explanation:
n of CO2 = 0.364mmol
Mass of C = 0.364*12 = 4.368 mg
n of H2O = 184.37 = 0.243 mol
The compound has 2*0.243mmol of H
Mass of H = 0.486 mg
Mass of O = 10.68 − (4.368+0.486) = 5.826mg
Moles of O = 0.364
C:H:O Ratios
0.364 : 0.486 : 0.364
= 1 : 1.34 : 1
= 3 : 4 : 3
So the empirical formula is C3H4O3,
Empirical formula mass
= 88= 2 × Molar mass
And the molecular formula is C6H8O6
5. Which state(s) of matter |s/ar epsilon easily compressible? Select all that apply.
-liquid
-solid
-gas
-none
Answers
Answer:
Gas
Explanation:
The atoms, ions, or molecules that make up the gas are further apart and move freely at high speeds and is can easily be compressible.
Answer:
Gas
Explanation:
A gas is a substance or matter in a state in which it will expand freely to fill the whole of a container' having no shape like a solid and no fixed volume like a liquid.
identify how you would make pentylamine from 1-hexanol:
Answers
To prepare pentylamine from 1-hexanol, we need to follow the following steps:
Step 1: Dehydration of 1-hexanol using sulfuric acid[SO4H2]H2SO4[latex]\rightarrow[/latex]C6H14O (1-hexanol) [latex]\rightarrow[/latex]C6H12 (1-hexene) + H2OThis reaction involves the removal of the hydroxyl group from 1-hexanol in the presence of concentrated sulfuric acid (H2SO4) to produce 1-hexene.
Step 2: Hydrogenation of 1-hexene in the presence of Lindlar catalystC6H12 (1-hexene) + H2 (hydrogen) [latex]\rightarrow[/latex]C6H14 (hexane)C6H14 (hexane) + NH3 (ammonia) [latex]\rightarrow[/latex]C5H11NH2 (pentylamine)
The hydrogenation of 1-hexene is done in the presence of Lindlar's catalyst, which is a poisoned catalyst that reduces the degree of hydrogenation to an alkene. This reaction converts 1-hexene to hexane, which is further treated with ammonia to yield pentylamine.
The reaction between hexane and ammonia forms pentylamine as shown below:
C6H14 (hexane) + NH3 (ammonia) [latex]\rightarrow[/latex]C5H11NH2 (pentylamine)
Hence, the overall reaction can be summarized as follows:
1-hexanol [latex]\xrightarrow{\text{Dehydration}}[/latex] 1-hexene [latex]\xrightarrow{\text{Hydrogenation}}[/latex] hexane [latex]\xrightarrow{\text{Ammonolysis}}[/latex]
pentylamine150 can be used to denote the temperature in degrees Celsius or a number of other contexts.
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Because the atoms of these noble gases have stable arrangements of electrons, the elements are all __________. What is the missing word?.
Answers
The elements in these noble gases are entirely inert, and their atoms have stable configurations of electrons.
What are inert gases?Gases that are not reacting are referred to as inert gases. These elements' atoms are inert because they contain an entire octet of electrons.Since the electron configurations in the atoms of these noble gases are stable, all of the elements are inert.The least reactive elements are noble gases. They have eight valence electrons, which fill their outer energy level, and this explains why. Noble gases rarely interact with other elements to form compounds since this is the arrangement of electrons that is the most stable.Group 18 elements are stable, which means they are not likely to gain or lose electrons, share electrons with other atoms, or interact with other elements. Group 18 elements have 8 valence electrons (helium has 2) and are stable.To learn more about inert gases refer to:
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Explain how an ionic compound forms from these elements.
7. sodium and nitrogen
8. lithium and oxygen
9. strontium and fluorine
10. aluminum and sulfur
Answers
Ionic compounds are formed by the complete transfer of electrons from more electronegative elements to less electronegative elements.
7. Sodium Nitride (Na₃N) is an ionic substance.
8. The ionic formula for Lithium Oxide is Li₂O
9. The compound SrF₂
10. Aluminum Sulfide is a chemical compound with the formula Al₂S₃.
An ionic compound is a chemical compound composed of ions held together via electrostatic forces termed ionic bonding. The compound is neutral standard but includes definitely charged ions known as cations and negatively charged ions known as anions.
An ionic compound is a chemical compound composed of ions held collectively by means of electrostatic forces termed ionic bonding. The compound is neutral normal however consists of positively charged ions known as cations and negatively charged ions referred to as anions. Ionic compounds incorporate ions and are held collectively via the attractive forces of most of the oppositely charged ions.
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WILL GIVE BRAINLIEST AND 20 POINTS How many grams are in 2.36 L of neon gas
Answers
Answer:
2.088464 grams.
Explanation:
The density of neon is 0.9002 g/L. Multiplying this value by the number of liters gives how many grams of neon it contains.
0.9002(2.32) = 2.088464
When the switch is closed which electrode will attract the sodium ions.
Answers
The electrode connected to the positive terminal of the power source (anode) will attract the sodium ions when the switch is closed, as sodium ions are positively charged and are attracted to the negative electrode.
When the switch is closed, the electrode connected to the positive terminal of the power source (anode) will attract the sodium ions. This is because during electrolysis, positive ions, such as sodium ions (Na+), are attracted to the negative electrode (cathode) due to their opposite charges. The positive terminal of the power source provides an excess of electrons at the cathode, creating a negatively charged environment. As a result, the positively charged sodium ions are drawn towards the cathode and are deposited or reduced there. This process allows for the separation and collection of sodium ions during electrolysis.
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In the equation 2H2 + O2 → 2H20, what are the reactants?
Answers
Answer:
2H2 and O2
Explanation:
Is the chemical equation balanced?
Yes or no
Answers
Answer:
Yes the equation is balanced
Explanation:
There is 2Na and 2F on both sides which means LHS=RHS. Hence,its balanced.
How do the particles in each state of matter move?
Answers
Answer:
gas vibrate and move freely at high speeds. liquid vibrate, move about, and slide past each other. solid vibrate (jiggle) but generally do not move from place to place.
Wet chemical system components typically are a storage tank or tanks, piping, nozzles, and a(an)?
Answers
Wet chemical system components typically are a storage tank or tanks, piping, nozzles, and an actuating mechanism.
Which parts make up an actuation mechanism?
The typical components of an actuation mechanism include a motor, transmission, control units, feedback, signaling, interlocking, and shutdown units. An electrical, hydraulic, or pneumatic drive is used to move a valve, shutter, or gate, which acts as an actuator to regulate the flow of fluids or gases.
What is the operation of the operator-dependent actuating mechanism?When an automatic clutch is engaged, the control system 2 replaces the target-value signals coming over feeders 1 with the operator force signal if the operator uses the operator-dependent actuating mechanism.
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The specific heat capacity of liquid water is 4.18 J/g-K. How many joules of heat are needed to raise the temperature of 5.00 g of water from 15.0 °C to 36.5 °C?
Answers
The specific heat capacity of a substance is the amount of energy required to raise the temperature of 1g of the substance by 1K.
\(\begin{gathered} q=mc\Delta T \\ q:energy\text{ }(J)=x \\ m:mass\text{ }(g)=5.00g \\ c:specific\text{ }heat\text{ }capacity\text{ }(Jg^{-1}K^{-1}) \\ \Delta T:change\text{ }in\text{ }temperature\text{ }(K) \\ \Delta T:(final\text{ }temperature-initial\text{ }temperature) \end{gathered}\)Calculating the change in temperature:
\(\Delta T:(273.15K+36.5\degree C)-(273.15K+15\degree C)=21.5K\)By substituting what we are given into the equation to solve for the unknow x we have;
\(\begin{gathered} q=5.00g\times4.18Jg^{-1}K^{-1}\times21.5K \\ q=+449.35J \end{gathered}\)Answer: Energy needed is 449.35J
Half reactions of 3Mg + N2 → Mg3N2
Answers
The balanced equation \(3Mg\) + \(N_{2}\)→ \(Mg_{3} N_{2}\) represents the reaction of three moles of magnesium (Mg) with one mole of nitrogen gas (N2) to form one mole of magnesium nitride . To determine the half reactions, we need to consider the oxidation and reduction processes involved.
1. Oxidation Half Reaction:
Magnesium atoms lose electrons and are oxidized from a neutral state to a 2+ oxidation state. Each magnesium atom loses two electrons. The oxidation half reaction can be written as follows:
\(3Mg\)→\(3Mg_{2} + +6e-\)
2. Reduction Half Reaction:
Nitrogen molecules (N2) gain six electrons to form nitride ions (N3-) with a 3- oxidation state. The reduction half reaction can be expressed as:
\(N_{2} + 6e-\)→ \(2N_{3} -\)
Combining these two half reactions, we can cancel out the electrons to obtain the balanced overall reaction:
\(3Mg + N_{2}\) → \(- Mg_{3} N_{2}\)
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You are performing an experiment and produce an unidentified compound. You know it is composed of carbon, hydrogen, and oxygen but you do not know how many of each are present. You determine its relative formula mass is 59 g/mol. What is its molecular formula?
A. C2H3O2
B. C4H3O4
C. CH12O2
D. C3H4O
Answers
Answer:
C₂H₃O₂
Explanation:
Given the relative formula mass = 59g/mol
Unknown:
Molecular formula of the compound
Solution:
To identify this compound, let us find the molecular mass of the choices given.
The one that tallies with the number 59 is the solution:
For;
C₂H₃O₂;
Atomic mass of C = 12
Atomic mass of H = 1
Atomic mass of O = 16
Insert the parameters and solve;
Relative molecular formula = 2(12) + 3(1) + 2(16) = 59g/mol
So, the first choice is the compound.
Which of the following substances is a base?
5 points
a. Vinegar
b. Ammonia
c. Lemon juice
d. Distilled water
Answers
Answer:
Ammonia
Explanation:
hope this helps
The_____form acidic compounds with hydrogen.
Answers
Answer:Halogens
Explanation:
I looked it up lol