Is the following sentence true or false? The lower the ionization energy, the easier it is to remove an electron from an atom. A. True B. False
Answers
Answer: It is True
Explanation:Because Ionization energy refers to the amount of energy required to remove an electron from an atom.
Related Questions
Fluorine (F) and bromine (Br) are in the same group on the periodic table. How do atoms of these elements compare when they form bonds?
What is 16.00 kPa in atm?
A resource that humans can use to produce energy is
The purpose of an indicator is to A. test and determine the pH values of unknown solutions. B. help acids and bases dissociate when placed in water. C. make a solution more neutral. D. conduct electricity.
Answers
Answer:
The answer to your question is CH₄ + 2O₂ ⇒ CO₂ + 2H₂O
Explanation:
Data
Methane = CH₄
Oxygen = O₂
Process
A combustion reaction is a kind of chemical reaction in which an organic compound reacts with oxygen to generate water and carbon dioxide.
Chemical reaction
CH₄ + O₂ ⇒ CO₂ + H₂O
Reactants Elements Products
1 C 1
4 H 2
2 O 3
Balanced chemical reaction
CH₄ + 2O₂ ⇒ CO₂ + 2H₂O
Reactants Elements Products
1 C 1
4 H 4
4 O 4
Final answer:
The balanced chemical equation for the combustion of methane is CH4 + 2O2 -> CO2 + 2H2O. This equation shows that a methane molecule reacts with two oxygen molecules to produce a carbon dioxide molecule and two water molecules while maintaining a balance as per the Law of Conservation of Mass.
Explanation:
The combustion of methane occurs when methane gas (CH4) combines with oxygen (O2) to produce carbon dioxide (CO2) and water (H2O). This reaction can be represented by the following balanced chemical equation:
CH4 + 2O2 -> CO2 + 2H2O
This means that one molecule of methane reacts with 2 molecules of oxygen to produce one molecule of carbon dioxide and two molecules of water. The chemical equation is balanced, meaning that the number of atoms of each element is the same on both sides of the equation as required by the Law of Conservation of Mass.
Learn more about Combustion of Methane here:
#SPJ3
Calculate the new partial pressures after equilibrium is reestablished. [in torr]
PPCl3
PPCl2
PPCl5
Answers
equilibrium is a situation in which economic forces such as supply and demand are balanced and in the absence of external influences the values of economic variables will not change
The equilibrium constant depends on the following:-
- Pressure
- Volume
The formula used in the question is as follows:-
, After putting the value, the equilibrium constant is as follows:-
After solving it, the equilibrium constant is 1.245.
The pressure in different systems is as follows:-
Hence, the total pressure is:-
After solving it, the P2 is 32.8torr.
The equilibrium constant in the second case is:-
After putting the value,
After solving, the value of x is 6.402torr
Hence, the partial pressure is 6.798, 26.398, and 223.402 respectively.
For more information, refer to the link;-
Answer:
The new partial pressures after equilibrium is reestablished for :
The new partial pressures after equilibrium is reestablished :
The new partial pressures after equilibrium is reestablished for :
Explanation:
At equilibrium before adding chlorine gas:
Partial pressure of the
Partial pressure of the
Partial pressure of the
The expression of an equilibrium constant is given by :
At equilibrium after adding chlorine gas:
Partial pressure of the
Partial pressure of the
Partial pressure of the
Total pressure of the system = P = 263.0 Torr
At initail
(13.2) Torr (32.8) Torr (13.2) Torr
At equilbriumm
(13.2-x) Torr (32.8-x) Torr (217.0+x) Torr
Solving for x;
x = 6.402 Torr
The new partial pressures after equilibrium is reestablished for :
The new partial pressures after equilibrium is reestablished :
The new partial pressures after equilibrium is reestablished for :
(1) CaCO3(s) --> CaO(s) + CO2(g)
(2) 2 Mg(s) + O2(g) --> 2 MgO(s)
(3) H2O(g) --> H2O(l)
(4) CO2(g) --> CO2(s)
Answers
Answer:
Was this correct? I am pretty sure it is since you are going from a solid to a gas in the first reaction.
Explanation:
(1) CaCO3(s) --> CaO(s) + CO2(g) --- solid to solid & gas ** most entropy here
(2) 2 Mg(s) + O2(g) --> 2 MgO(s) solid & gas to a solid
(3) H2O(g) --> H2O(l) gas to a liquid
(4) CO2(g) --> CO2(s) gas to a solid
As temperature rises and a substance transforms from a solid to a liquid to a gas, entropy increases. Because they have the most flexibility to move, gases have the highest entropy values. Here the first reaction has high entropy. The correct option is 1.
The level of unpredictability in a system is known as entropy. The degree of randomness is highest when comparing the three forms of matter solid, liquid, and gas because the gas particles move freely.
(1) CaCO3(s) --> CaO(s) + CO2(g) --- solid to solid & gas - most entropy here
(2) 2 Mg(s) + O2(g) --> 2 MgO(s) solid & gas to a solid
(3) H2O(g) --> H2O(l) gas to a liquid
(4) CO2(g) --> CO2(s) gas to a solid
Thus the correct option is 1.
To know more about entropy, visit;
#SPJ6
Answers
Answer:
Temperature and humidity
Explanation:
Crystallization occurs in super saturated solution. These are the solutions that have solute to solvent ratio of 2:1 or more. Typical honey is 70% sugar and 20% water (the solute concentration is too high).
Two things cause honey to crystallize.
- Temperature
- Humidity level
If temperature is lowered the rate of crystallization increases. This is because at low temperature the molecules of solvent come closer and the space between them reduces. This causes the additional solute molecules to be pushed up to form crystals.
Secondly, humidity also plays a key role. If the humidity reduces, the water molecules evaporates from honey into air. This increases the relative concentration of the solute inside the honey, which causes the honey to crystallize.
Answers
Answer:
1 gram molecular mass of this compound = 20
Explanation:
Gram Molecular Mass is the mass of a chemical that is obtained by the number of grams in the chemical determined by the masses obtained from the periodic table and the number of mols determined from the Chemical formula.
That's quite a mouthful. Here's what it means in plain language.
Find the Gram molecular mass of C2H6
The periodic table tells us that 1 mol of C2H6 has
2 mols of Carbon which is 2*C or 2 * 12 = 24 and
6 mols of Hydrogen which is 6*H or 6*1 = 6
The gram molecular mass is 6 + 24 = 30
Your question doesn't require all that background.
5 gram molecular masses = 100 grams Given
1 gram molecular mass = x
5/1 = 100/x Cross multiply
5x = 100 Divide by 5
x = 100 / 5
x = 20
The gram molecular mass of a compound whose 5 moles has a mass of 100 grams would be 20 grams per mole.
The gram molecular mass of a substance is simply the mass (in gram) of 1 mole of the same substance. In other words, the gram molecular mass of a substance is also the same as the molar mass of the substance.
In this case, 5 moles of the substance weigh 100 grams
Therefore, 1 mole of the same substance would weigh:
1 x 100/5 = 20 grams
More on the gram molecular mass can be found here: brainly.com/question/11865839
Answers
Answer: The correct answer is "wrap more coils of wire around the nail".
Explanation:
Electromagnet: When the current passes through iron core wounded by the coils then it will get magnetized. It is not a permanent magnet.
It will loose its magnetism when the current does not flow in it.
The poles of the electromagnet can be changed. They are not fixed.
In the electromagnet, the strength of the magnetism can be increased or decreased by increasing the number of turns in the coil and by increasing the current.
In the given problem, If you make an electromagnet using a battery circuit and a steel nail, the magnetic strength can be increased by wrapping more coils of wire around the nails.
Therefore, the correct option is (B).