Answer:
A, they get their food in the same way.
Explanation:
Some fungi can be toxic or poisonous.
Example: mushrooms. Mushrooms typically are found in forests and meadows/plains.
Some fungi are glowing, brown, and in many forms/shapes.
In conclusion, fungi all get nutrient from the dirt they grew in, forests can be moist which gives fungi excellent places to form, usually around trees, because they can absorb plenty of nutrients from the dirt.
Which substance is most likely to form in a precipitation reaction?
A) calcium nitrate
B) copper(I) nitrate
C) iron(I) chloride
D) iron(II) sulfide
E) potassium sulfate
Answer:
(d) Iron (II) sulfide (FeS) is precipitated most likely and is an renowned ore of iron. (e) Potassium sulfate (K₂SO₄) is like to remain mostly in its ionic form and has less tend to precipitate. Thus FeS will be more likely to be precipitated.
Explanation:
Brainliest please?
please help i will mark brainlist
Answer:
V= 21 cubic cm (( I am not sure about density ))
Explanation:
V= L×W×H
Match the element with number of valence electrons
0
С
Ga
As
At
K
H
He
:: 5
:: 8
.: 1
:: 2
:: 7
:: 6
.: 3
Answer:
Oxygen-O = 6
Carbon C = 4
Gallium G = 3
Astatine A = 7
Arsenic As = 5
Potassium K = 1
Hydrogen H = 1
Helium H = 2
Explanation:
20
What is the name of this compound?
OH
CH3-CH3 -CH 2 -CH2-CH-CH2
Isohexyl alcohol
hexyl alcohol
tert-hexyl alcohol
sec-hexyl alcohol
tret-hexyl alcohol
Explanation:
its formula is CH3-CH3-CH2-CH2-CH-CH2
Write a balanced chemical equation for the reaction that occurs when Mg(s) reacts with Cl2(g).
Explanation:
When magnesium reacts with chlorine then it forms magnesium chloride.
Equation -
Mg + Cl₂ → MgCl₂
This is the example of Combination reaction.
Q-3 Determine the fugacity in atm for pure ethane at 310 K and 20.4 atm and change in the chemical potential between this state and a second state od ethane where temperature is constant but pressure is 24 atm.
The fugacity in atm for pure ethane at 310 K and 20.4 atm is given by the equation: f = 20.4 exp (-Δg1/RT). The change in chemical potential between this state and a second state of ethane where the temperature is constant but the pressure is 24 atm is -0.0911RT.
Fugacity is a measure of the escaping tendency of a component in a mixture, which is defined as the pressure that the component would have if it obeyed ideal gas laws. It is used as a correction factor in the calculation of equilibrium constants and thermodynamic properties such as chemical potential. Here we need to determine the fugacity in atm for pure ethane at 310 K and 20.4 atm and the change in the chemical potential between this state and a second state of ethane where the temperature is constant but the pressure is 24 atm. So, using the formula of fugacity: f = P.exp(Δu/RT) Where P is the pressure of the system, R is the gas constant, T is the temperature of the system, Δu is the change in chemical potential of the system. Δu = RT ln (f / P)The chemical potential at the initial state can be calculated using the ideal gas equation as: PV = nRT
=> P
= nRT/V
=> 20.4 atm
= nRT/V
=> n/V
= 20.4/RT The chemical potential of the system at the initial state is:
Δu1 = RT ln (f/P)
= RT ln (f/20.4) Also, we know that for a pure substance,
Δu = Δg. So,
Δg1 = Δu1 The change in pressure is 24 atm – 20.4 atm
= 3.6 atm At the second state, the pressure is 24 atm.
Using the ideal gas equation, n/V = 24/RT The chemical potential of the system at the second state is: Δu2 = RT ln (f/24) = RT ln (f/24) The change in chemical potential is Δu2 – Δu1 The change in chemical potential is
Δu2 – Δu1 = RT ln (f/24) – RT ln (f/20.4)
= RT ln [(f/24)/(f/20.4)]
= RT ln (20.4/24)
= - 0.0911 RT Therefore, the fugacity in atm for pure ethane at 310 K and 20.4 atm is:
f = P.exp(Δu/RT)
=> f
= 20.4 exp (-Δu1/RT)
=> f
= 20.4 exp (-Δg1/RT) And, the change in the chemical potential between this state and a second state of ethane where the temperature is constant but pressure is 24 atm is -0.0911RT. Therefore, the fugacity in atm for pure ethane at 310 K and 20.4 atm is given by the equation: f = 20.4 exp (-Δg1/RT). The change in chemical potential between this state and a second state of ethane where the temperature is constant but the pressure is 24 atm is -0.0911RT.
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Which one of the following is not true of metallic bonding?
a. it gives rise to excellent electrical conductivity
b. electrons are free to move throughout the structure
c. the strength of metallic bonds increases down a group
d. the strength of metallic bonding affects the boiling point of metal
The statement that energy cannot be created or destroyed is part of the law of____?
Given the balanced chemical equation for the decomposition for INO, and the rate of disappearance of INO, write the expressions for the rates of appearance of I_2 and NO.
2 INO(g) > I_2(g) + 2 NO(g)
Reactant Product (I_2) Product (NO)
- ?[INO] x y
--------- = ------- = --------
2 ?t w z
Fill w,x,y,z.
According to chemical equilibrium, \(\frac{d[I_2]}{dt}\) and \(\frac{d[NO]}{dt}\) is the expressions for the rates of appearance of I₂ and NO respectively.
Chemical equilibrium is the state that develops during a reversible chemical reaction when there is no net change in the ratio of reactants to products. When a chemical reaction is reversible, the products immediately after they are generated combine to form the reactants once more. There is no net change in the quantity of the chemicals involved in the chemical reaction when the two opposing processes are in equilibrium and happening at equal rates. When the reaction is in equilibrium, it is deemed finished. The quantitative formulation identifies the conditions needed for equilibrium. Changes in concentration, changes in pressure and temperature, and the presence of a catalyst are all factors that influence chemical equilibrium.
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Can someone answer these please i'll give 25 points it would mean alot to me <3
Answers:
Continental Tropical - 2
Maritime Tropical - 3
Continental Polar - 6
Arctic Air - 5
Maritime Polar - 4
Maritime - 1
Hope this helped! :^)
Answer:
Continental Polar = Cold and dry
Maritime polar = Cold and humid
Maritime tropical = Warm and humid
Continental tropical = Warm and dry
Arctic air = Extremely cold and dry
Maritime = of or related to sea
Explanation:
Calcium carbonate decomposes in this balanced equation:
CaCO3 CaO + CO2 ΔH = +110 kJ/mol
The decomposition of calcium carbonate is an endothermic reaction.
The given equation for the decomposition of calcium carbonate is:
CaCO₃ → CaO + CO₂
ΔH = +110 kJ/mol
where ΔH is the enthalpy change for the reaction.
The positive value of ΔH in the equation indicates that the reaction is endothermic, meaning that heat is absorbed by the reactants from the surroundings during the reaction. This means that the reaction requires an input of energy to proceed, and the products (CaO and CO₂) have higher potential energy than the reactant (CaCO₃).
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--The complete question is, Calcium carbonate decomposes in this balanced equation:
CaCO3 + CaO + CO2 ΔH = +110 kJ/mol
Is this reaction endothermic or exothermic?--
need help asap please
I doiont know tbh
Explanation:
From the choices given, which of the electromagnetic radiation has the highest energy? Help!
The ultraviolet waves have the greatest energy.
What is electromagnetic energy?Electromagnetic energy refers to the energy carried by electromagnetic waves, which include radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays.
These waves are a type of oscillating electromagnetic field that travels through space at the speed of light. Electromagnetic energy can be described both as a wave and as particles, called photons.
Given the fact that the energy is inversely proportional to the wavelenegth, the ultraviolet radiation has the greatest energy.
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what percent composition tell you about a molecule
Answer:
tells you by mass what percent of each element is present in a compound.
Explanation:
Which of the following has the highest electromagnivity
Answer:
Where are the answer choices
?
C2H6(g) + O2(g) → CO2(g) + H2O(g)
Answer:
2C2H6 + 7O2 --> 4CO2 + 6H20
Explanation:
Balanced equation
Por favor, necesito ayuda, es urgente!!!
Answer:
what type of language this is ??
consider the equilibrium of each of the carbonyl compounds with hcn to produce cyanohydrins. which is the correct ranking of compounds in order of increasing keq for this equilibrium
The correct ranking of compounds in order of increasing keq for this equilibrium is Acetone < Propanone < Benzaldehyde.
The correct ranking of compounds in order of increasing keq for the equilibrium of each of the carbonyl compounds with HCN to produce cyanohydrins is
Acetone < Propanone < Benzaldehyde.
In the above reaction, the cyanide ion acts as a nucleophile and attacks the carbonyl carbon atom in the carbonyl compound to form an intermediate compound. Then the intermediate compound formed by the reaction between HCN and the carbonyl compound undergoes an intramolecular rearrangement to form cyanohydrin.Based on the stability of intermediate compound formed, the order of increasing stability is as follows:
Acetone < Propanone < Benzaldehyde.
Since the keq is directly proportional to the stability of the intermediate, the order of increasing keq for the equilibrium of each of the carbonyl compounds with HCN to produce cyanohydrins is
Acetone < Propanone < Benzaldehyde.
The correct ranking of compounds in order of increasing keq for this equilibrium is
Acetone < Propanone < Benzaldehyde.
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What is the relationship between radioactive decay and radiometric dating?
Answer:
Radiometric dating, is called radioactive dating, is a technique used to determine the age of materials such as rocks. It is based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates.
Explanation:
:)
Which of following is CORRECT relationship for silver carbonate in water (Symbol: s = solubility, Ksp = equilibrium constant, [X]=concentration of X)?
Group of answer choices
s = [Ag+]
s = [CO32-]
s = Ksp
s = [Ag+]2
s = [Ag+][CO32-]
The solubility of silver carbonate in water is determined by the equilibrium constant, Ksp.
Silver carbonate, Ag2CO3, is sparingly soluble in water. When a solid Ag2CO3 is added to water, it dissociates into silver ions (Ag+) and carbonate ions (CO32-). The dissolution process can be represented as follows:
Ag2CO3(s) ⇌ 2Ag+(aq) + CO32-(aq)
The equilibrium constant for this dissolution reaction is denoted as Ksp. Ksp is the product of the concentrations of the dissolved ions raised to their stoichiometric coefficients. In this case, the Ksp expression is:
Ksp = [Ag+]^2 [CO32-]
The Ksp value is constant at a given temperature and represents the maximum amount of Ag2CO3 that can dissolve in water.
The options s = [Ag+], s = [CO32-], s = [Ag+]^2, and s = [Ag+][CO32-] do not correctly represent the relationship between the solubility and the concentrations of the ions. The solubility of Ag2CO3 is determined by the value of Ksp, not directly proportional to the concentration of silver ions or carbonate ions.
Therefore, the correct relationship for the solubility of silver carbonate in water is s = Ksp, where s represents the solubility of Ag2CO3.
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What can you determine about the feasibility of a reaction if the enthalpy is positive and
the entropy is positive?
A. The Gibbs energy will always be positive, and the reaction will never be feasible.
B. The Gibbs energy will always be negative, and the reaction will always be feasible.
OC. The reaction could be feasible above a certain temperature.
D. The reaction will usually occur because it is unlikely the entropy will be greater than the enthalpy.
Reset Selection
If the enthalpy is positive and the entropy is positive, the Gibbs energy will always be positive, and the reaction will never be feasible.
What is the Gibbs Free Energy?The Gibb Free Energy is used to obtain the feasibility of a reaction. If the Gibbs free energy is positive the reaction is not spontaneous. If the value is negative, the reaction is spontaneous while a zero values indicates equilibrium.
From the equation;
ΔG = ΔH - TΔS, it follows that if the enthalpy is positive and the entropy is positive, the Gibbs energy will always be positive, and the reaction will never be feasible.
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How many protons, neutrons, and electrons are in this ion?
Answer:
Ans C is the correct one.
As the element with 15 proton 15 electrons and 16 neutron is phosphorus
A glacier can travel over the surface of Earth and reshape it. The chart describes three things a glacier can do.
Glacial Actions:
1. breaks large rocks into smaller ones
2. pushes broken rocks ahead of itself
3. leaves broken rocks behind when the front edge melts
Which terms BEST describe these glacial actions in the order as presented?
a. weathering, erosion, deposition
b. erosion, chemical weathering, deposition
c. deposition, weathering, erosion
d. chemical weathering, mechanical weathering, erosion
Answer:
A
Explanation:
If 75.0 grams of water is heated from 32.6oC to 78.9oC, how many kilojoules of heat does the water absorb
The water absorbs approximately 0.0142 kJ of heat when heated from 32.6°C to 78.9°C.
To determine the amount of heat absorbed by the water, we can use the formula:
q = m × c × ΔT
where q is the heat absorbed, m is the mass of the water, c is the specific heat capacity of water, and ΔT is the change in temperature.
The specific heat capacity of water is 4.184 J/(g·°C), or 4.184 × 10⁻³ kJ/(g·°C).
Converting the given mass from grams to kilograms, we have:
m = 75.0 g = 0.075 kg
The change in temperature is:
ΔT = 78.9°C - 32.6°C = 46.3°C
Substituting these values into the formula, we get:
q = (0.075 kg) × (4.184 × 10 kJ/(g·°C)) × (46.3°C)
q = 0.0142 kJ
Therefore, the water absorbs approximately 0.0142 kJ of heat.
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During a lab experiment performed at STP conditions, you prepare HCl by reacting 100. ml of Cl2 gas with an excess of H2 gas.
How many ml of a solution of Ba(OH)2 0.230M do you need to neutralize all the HCl produced?
Answer: 19.4 mL Ba(OH)2
Explanation:
H2(g) + Cl2(g) --> 2HCl(aq) (make sure this equation is balanced first)
At STP, 1 mol gas = 22.4 L gas. Use this conversion factor to convert the 100. mL of Cl2 to moles.
0.100 L Cl2 • (1 mol / 22.4 L) = 0.00446 mol Cl2
Use the mole ratio of 2 mol HCl for every 1 mol Cl2 to find moles of HCl produced.
0.00446 mol Cl2 • (2 mol HCl / 1 mol Cl2) = 0.00892 mol HCl
HCl is a strong acid and Ba(OH)2 is a strong base so both will completely ionize to release H+ and OH- respectively. You need 0.00892 mol OH- to neutralize all of the HCl. Note that one mole of Ba(OH)2 contains 2 moles of OH-.
0.00892 mol OH- • (1 mol Ba(OH)2 / 2 mol OH-) • (1 L Ba(OH)2 / 0.230 M Ba(OH)2) = 0.0194 L = 19.4 mL Ba(OH)2
Using the picture below, calculate the number of protons, electrons, and neutrons
Answer:
4 protons.
5 neutrons.
4 electrons.
Explanation:
Your # of protons will always be the atomic number (number above the symbol), which is 4.
Your # of neutrons will always be the atomic mass minus atomic number, which is 5.
Your # of electrons is also equal to the atomic number. It is also 4.
global warming is caused by an increase in the level of carbon dixode gas in the atmosphere. How has this affected the world's oceans?
Can some one please help me
First person to answer me wins 75 points
Answer: it b
Explanation:
Answer:
B
duhfndfj vnffdfgndgbvcbc
Explanation:
hỗn hợp E gồm 6 este có cùng CTPT C8H8O2 và đều chứa vòng benzen. Cho 68g phản ứng tối đa với V ml dd NaOH 1M đun nống, thu được 15g muối và 77,4g hh ancol Y. Giá trị của V là?
Explanation:
just a few days ago and I have a
Two Object Interaction Quick Check
1) Why do two electrons repel when they interact?
c) because they both have similar negative electric charge
2) Which of the following has kinetic energy?
c) a spring traveling down a flight of stairs
3) When is the kinetic energy of an electron transformed into potential energy?
a) when it interacts with other electrons, decreasing its speed
4) Atoms bond to form molecules. Which structures or regions of the atoms interact in these bonds?
c) electric fields of particles with opposite charges
5) In particle accelerators such as the one shown, fields are employed to separate different subatomic particles. What type or types of fields are employed, and what characteristics do these particles need to have in order to be separated?
a) Both electric and magnetic fields are applied. Particles need to be charged.
1. It is very basic principle that two like charges repel and two unlike charges attracts. All electrons are negatively charged and thus two electrons will repel each other. Hence, the given option is correct.
What is electric field ?An electric field is produced by the force from charged particles. The strength of field lines depends on the magnitude of charges and the presence of magnetic field is there.
2. The object which have higher velocity will have higher kinetic energy. The spring travelling downward will have an acceleration due to gravity downwards. Hence, it has higher kinetic energy.
3. When the electrons slow down by interacting with other particles its kinetic energy converts to potential energy.
4. Atoms bond to form molecules. Electric fields of particles with opposite charges are interacting together to form bonds.
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Answer:
This is correct!!
Explanation:
I got a 100, thank you!