What types of atoms typically form covalent bonds?
A. Metals with nonmetals, because their difference in electronegativity is above 1.7.
B.Metals with nonmetals, because their difference in electronegativity is below 1.7.
C.Nonmetals with nonmetals, because their difference in electronegativity is above 1.7.
D.Nonmetals with nonmetals, because their difference in electronegativity is below 1.7.
Answers
Explanation:
Covalent bonds form between non-metals because their electronegativity difference is below 1.7. An electronegativity difference of this magnitude shows that the combining atoms would equally have a similar affinity for valence electrons when interatomic bonds are forming.
A covalent bond involves the sharing of valence electrons in their outer energy shells in order to mimic the noble gases.
Electronegativity is a measure of an atom to attract valence electrons in chemical bonds.
Non-metals generally have very high electronegativity.
Since the two atoms have high electronegativity, it becomes difficult for an atom to donate electrons from bonding as seen in ionic bonding.
In covalent bonding, the two atoms donates the electrons to be shared.
Example is HCl.
Related Questions
the measurable difference in charges of atoms is known as
Answers
The measurable difference in charges of atoms is known as electronegativity.
Electronegativity is the measure of the capability of an atom in a molecule to pull electrons toward itself. In general, this measure increases from left to right across a period and decreases down a group of the periodic table.
Electronegativity usually increases with increasing atomic number and decreases with increasing distance from the nucleus of an atom.
To know more about electronegativity please refer to:
https://brainly.com/question/29203628
#SPJ11
electrons can only gain energy by leaving the atom (creating an ion). electrons move between discrete energy levels, or escape the atom if given enough energy. electrons can have any energy below the ionization energy within the atom, or escape if given enough energy. electrons can have any energy within the atom, and cannot be given enough energy to cause them to escape the atom. electrons move between discrete energy levels within the atom, and cannot accept an amount of energy that causes them to escape the atom. 5 points saved question 7 the spectrum from an incandescent (with a filament) light bulb is a(n) continuous spectrum. emission line spectrum. absorption line spectrum.
Answers
The spectrum from an incandescent light bulb with a filament is a continuous spectrum. This means that the light emitted contains all colors of the visible spectrum, appearing as a smooth, uninterrupted rainbow
Electrons in an atom can only gain energy by leaving the atom and creating an ion. They can move between discrete energy levels or escape the atom if given enough energy. Electrons can have any energy below the ionization energy within the atom or escape if given enough energy.
However, electrons can have any energy within the atom and cannot be given enough energy to cause them to escape the atom. They move between discrete energy levels within the atom and cannot accept an amount of energy that causes them to escape the atom.
In contrast, an emission line spectrum appears as a series of bright lines against a dark background, while an absorption line spectrum appears as a series of dark lines against a bright background.
The type of spectrum emitted depends on the source of the light and the composition of the material emitting the light.
To learn more about : spectrum
https://brainly.com/question/2187993
#SPJ11
for the sn1 reaction, draw the major organic product, identify the nucleophile, substrate, and leaving group, and determine the rate limiting step. c5h11i
Answers
From the given SN1 reaction (picture attached), the major organic product will be 3-ethylpentan-3-ol, the nucleophile, substrate, leaving group, and the rate-limiting step is identified in the attachment.
In the given reaction an alkyl halide 3-bromo-3-ethylpentane is used as a substrate. In the first step of the reaction, alkyl halide dissociates and a carbocation with a Bromide ion generates. The first step of the reaction mechanism is the slow and rate-determining step. In the first step, 3-bromo-3-ethylpentane is the substrate and bromide is the leaving group. In the second step, the water molecule acts as a nucleophile and attacks carbocation. In the final step, bromide removes hydrogen from the water molecule, and the product results.
The complete question and reaction mechanism are attached as a picture.
You can also learn about nucleophiles, substrates, and leaving groups from the following question:
https://brainly.com/question/2017803
#SPJ4
what is the molarity of 2.3 mol of Kl dissolved in 0.5 L of water
Answers
Answer:
\(4.6\,\,moL\,\,L^{-1}\)
Explanation:
Molarity refers to a measure of concentration.
Molarity = moles of solute/Litres of solution
Molarity refers to number of moles of solute present in this solution.
In order to find a solution's molarity, use value for the number of moles of solute and the total volume of the solution expressed in liters
As molarity of 2.3 mol of Kl is dissolved in 0.5 L of water,
Molarity = \(\frac{2.3}{0.5} =4.6\,\,moL\,\,L^{-1}\)
how many moles of carbon dioxide will form when 2.60 moles of pentane react with excess oxygen?
Answers
When 2.60 moles of pentane react with excess oxygen, 13.0 moles of carbon dioxide will form.
The balanced equation for the combustion of pentane (C₅H₁₂) with oxygen (O₂) to form carbon dioxide (CO₂) and water (H₂O) is:
C₅H₁₂ + 8O₂ → 5CO₂ + 6H₂O
From the balanced equation, we can see that for every 1 mole of pentane, 5 moles of carbon dioxide are produced. Therefore, if 2.60 moles of pentane react, we can calculate the moles of carbon dioxide formed using the mole ratio:
2.60 moles C₅H₁₂ x (5 moles CO₂ / 1 mole C₅H₁₂) = 13.0 moles CO₂
Therefore, when 2.60 moles of pentane react with excess oxygen, 13.0 moles of carbon dioxide will form.
Learn more about pentane from the link given below.
https://brainly.com/question/32575022
#SPJ4
what is the science behind the brightness of paint
Answers
Answer:
luminescence
Explanation:
Hope it helps!
1. → 7Ti2(SO4)3 Which number represents a coefficient? 2 3 4 7
2. The expression CaCO3 → CaO + CO2 is an example of a a. reactant. b. product. c. chemical equation. d. chemical progression.
3. What can the arrow in a chemical reaction be translated to mean? Check all that apply
A. yields
B. accompanied by
C. react to form
D. added to
E. except
Answers
1) The 7Ti(SO₄)₃ number which represent the coefficient is 7.
2) the expression CaCO₃--> CaO + CO₂ is an example of chemical equation
3) the arrow in a chemical reaction be translated to mean a) yields c) react to form.
1) The 7Ti(SO₄)₃, in the compound the coefficient is 7. the coefficient is the number which is place in front of the chemical symbol or the chemical formula.
2) the chemical reaction is given as :
CaCO₃--> CaO + CO₂
this is an example of the chemical equation.
3) the arrow in a chemical reaction be translated to mean the reactants will combine to form the products. so the coorect option is a) yields and c) react to form.
To learn more about chemical equation here
https://brainly.com/question/28294176
#SPJ4
write the chemical equations showing how a single Cl atom in the catalytic cycle reacts to deplete ozone
Answers
In the catalytic cycle, a single Cl atom reacts with ozone to form oxygen and a chlorine oxide radical, as shown below:
Cl + O\(_3\) → ClO + O\(_2\)
The chlorine oxide radical can then react with another molecule of ozone to form two molecules of oxygen and regenerate the Cl atom:
ClO + O\(_3\) → 2O\(_2\)+ Cl
This process can continue indefinitely, with the Cl atom acting as a catalyst to convert many molecules of ozone into oxygen. This is why chlorine and other halogens are so effective at depleting ozone in the stratosphere.
Learn more about ozone depletion and the catalytic cycle at: https://brainly.com/question/12004387
#SPJ11
what are the products in the chemical reaction of vinegar and baking soda to form sodium acetate water and carbon dioxide
Answers
Salt (sodium lactate), water, or carbon dioxide gases are the products of a reaction that happens when hydrogen peroxide (sodium bicarbonate) or vinegar (acetic anhydride) are mixed.
A chemical reaction is what?One or more chemicals, also referred to as reactants, are transformed into one or more other substances, often referred to as products, in a chemical reaction. Substances are constructed up of chemical components or chemical elements. A chemical reaction occurs once a or more chemicals change into one or several other substances. An illustration of this is when iron and gas mix to produce rust. Vinegar and soda soda together result in the production of water, carbon dioxide, and sodium acetate.
To know more about Chemical reaction visit:
brainly.com/question/29039149
#SPJ1
Why does the weight of the dry ice go down while it’s sitting on the scale
Answers
Dry ice is colder, heavier, less messy than regular ice. If I understood your question correctly, the mass of it would decrease bc it is being dispersed into the air as carbon dioxide.
Explanation:
As a result of the transformation of solid carbon dioxide into carbon dioxide gas, which enters the atmosphere, the weight of the ice decreases and falls.
What is Melting?Melting, also known as fusion, is a physical process that causes a substance's phase transition from solid to liquid. This happens when the internal energy of a solid increases, typically through the application of heat or pressure, which raises the temperature of the substance to the melting point. Melting is the transformation of a solid into a liquid caused by the application of heat. In a pure crystalline solid, this process occurs at a fixed temperature known as the melting point; an impure solid usually melts over a range of temperatures below the melting point of the principal component.The melting point of a solid is the temperature at which melting occurs. In this process, heat is released from the solid.To learn more about Melting refer to:
https://brainly.com/question/14649288
#SPJ2
If 10 moles of P4S3 was used, how many grams of P4O6 was produced? Leave up to 3 decimal places when possible.
Answers
If 10 moles of P4S3 were used, the mass of P4O6 produced would be 2838.8 grams.
To determine the number of grams of P4O6 produced from 10 moles of P4S3, we need to use the balanced chemical equation and the molar masses of the compounds involved.The balanced equation for the reaction between P4S3 and oxygen to produce P4O6 is:
P4S3 + 8 O2 → P4O6 + 6 SO2
From the balanced equation, we can see that the molar ratio between P4S3 and P4O6 is 1:1. This means that for every 1 mole of P4S3 consumed, 1 mole of P4O6 is produced.The molar mass of P4S3 is 220.25 g/mol, and the molar mass of P4O6 is 283.88 g/mol.
To calculate the mass of P4O6 produced, we can use the following equation:
Mass of P4O6 = Moles of P4O6 × Molar mass of P4O6
Since the molar ratio between P4S3 and P4O6 is 1:1, the number of moles of P4O6 produced is also 10 moles.
Mass of P4O6 = 10 moles × 283.88 g/mol = 2838.8 grams
for such more questions on mass
https://brainly.com/question/24191825
#SPJ8
SeS3 covalent compound name?
Answers
Answer:
Selenium trisulfide
A sample of helium gas is allowed to expand in a process that is adiabatic and quasistatic. As the gas cools from 105 degree C to 101 Degree C, it does 3.05 J of work on a piston. How many helium atoms are there in the sample?
Answers
According to the question, helium atoms are there in the sample is (3.05 J/P) / (R × (105 + 273.15 K)) × 6.02 x 10²³ atoms/mol.
What is helium atoms?Helium atoms are the second most abundant type of atom in the universe. They are the simplest of all atoms, consisting of only two protons and two neutrons. Helium atoms are extremely lightweight, with an atomic weight of only four, making them the second lightest element after hydrogen.
The number of helium atoms in the sample can be calculated using the ideal gas law: n = PV/RT
where n is the number of moles, P is the pressure, V is the volume, R is the ideal gas constant, and T is the temperature.
Since the process is adiabatic and quasistatic, the pressure and volume of the sample can be determined from the work done on the piston:
W = P(V2 - V1)
where W is the work done, V2 is the final volume, and V1 is the initial volume.
Since the work done is 3.05 J, the final volume is 3.05 J/P. The initial volume can be determined from the ideal gas law, using the initial temperature of 105°C and the number of moles (which is unknown).
n = PV1/RT1
where n is the number of moles, P is the pressure, V1 is the initial volume, R is the ideal gas constant, and T1 is the initial temperature.
Substituting the values into the ideal gas law, we can solve for the number of moles: n = (3.05 J/P) / (R × (105 + 273.15 K))
Once the number of moles is determined, the number of helium atoms can be calculated by multiplying by Avogadro's number.
N = n × 6.02 x 10²³ atoms/mol
Therefore, the number of helium atoms in the sample is:
N = (3.05 J/P) / (R × (105 + 273.15 K)) × 6.02 x 10²³ atoms/mol.
To learn more about helium atoms
https://brainly.com/question/2174015
#SPJ4
Oxalic acid (98%) is a polyprotic acid. It has a density of 1.65 g/cm^3 and a melting point of 189.5°C. Oxalic acid has a molecular mass of 90.03 g/mol and with a pka1 of 5.62 x10^-2. What volume of oxalic acid must be added to sufficient water to give a 1.500 liter solution that is 0.300 F (in formal concentration)?
Answers
Approximately 24.55 cm^3 of oxalic acid must be added to sufficient water to give a 1.500 liter solution with a formal concentration of 0.300 F.
To find the volume of oxalic acid needed to make a 1.500 liter solution with a formal concentration of 0.300 F, we need to use the equation:
Formal concentration (F) = (moles of solute) / (volume of solution in liters)
First, we need to calculate the moles of oxalic acid required. The formal concentration (F) is given as 0.300, so:
0.300 = (moles of oxalic acid) / 1.500
Rearranging the equation, we find:
moles of oxalic acid = 0.300 * 1.500
moles of oxalic acid = 0.450
Next, we can calculate the mass of oxalic acid needed using its molecular mass:
mass of oxalic acid = moles of oxalic acid * molecular mass
mass of oxalic acid = 0.450 * 90.03
mass of oxalic acid = 40.5145 g
Finally, we can calculate the volume of oxalic acid needed using its density:
volume of oxalic acid = mass of oxalic acid / density
volume of oxalic acid = 40.5145 g / 1.65 g/cm^3
volume of oxalic acid = 24.55 cm^3
Learn more about oxalic acid here :-
https://brainly.com/question/32770055
#SPJ11
When temperature drops, (for example from 20 degrees celsius to 10 degrees celsius)
a.) energy increases
b.) particles move slower
c.) particles collide more often
d.) pressure increases
Answers
What is the approximate vapor pressure when the gas condenses at 70°C?
150
5
760
380
Answers
Answer:
380
Explanation:
I couldn't find the answer anywhere so this is the correct answer. I got it graded.
what elements are needed for life to exist on earth and when were they found on earth?
Answers
Answer:
Earth is built around compounds that contain elements such as carbon, nitrogen, hydrogen and oxygen
Explanation:
Can someone please answer this question please I really need to know
Answers
Answer: aging?
Explanation: sorry, i’m not too sure, but that would be my best guess.
What will be the coordinates of B' if the triangle below is reflected across the y-axis? Pre-image Points: A(1.-4) B(2, -1) C(6,-4) A.(-1,2) B.(1,-2) C.(-2,-1) D.(2,1)
Answers
The coordinates of B' is (2,1) if the triangle below is reflected across the y-axis .
Hence , option D is correct one .
A reflection is a transformation of the graph of a function over x - axis or the y - axis ( or both ) . The x-coordinate of each point must be negated while reflecting across the Y- axis, but the value must remain unchanged .
Each point in a figure is transformed into a reflection by reflecting it over a line. This reflection translates the ABC triangle (A, B, and C) . The outcome is a brand-new figure known as the picture .
to learn more about coordinates please click here ,
https://brainly.com/question/27749090
#SPJ1
If two objects have the same density, they must have the same?
Answers
Answer:
False, two objects can have separate chemical make-ups, yet still be the same density.
Answer:
Mass
Explanation:
because density is mass/volume
The balloon in this image was rubbed with a piece of wool material. Now, it is negatively charged. What force allows the charged balloon to "pick up" the small pieces of paper off of the table?
The negatively charged balloon is attracted to negative static charges in the paper..
The negatively charged balloon is attracted to the north pole of the paper pieces.
The negatively charged balloon is attracted to the south pole of the paper pieces.
The negatively charged balloon is attracted to the positive static charges in the paper.
What is the best explanation of electric current in a wire?
Electrons build up in the wire and create a charge.
Electrons flow because of electrical attraction and repulsion.
Protons are pushed along by electric forces.
Atoms move because of heat.
Why does the light bulb in a circuit turn on when you close the switch?
The switch absorbs the electrical energy.
The switch changes the direction of the flow of electrons.
Closing the switch completes the circuit, making it a closed circuit.
The switch changes the circuit from series to parallel.
Earth is dipolar, like a bar magnet.
What does this mean about its magnetic poles?
There is only a magnetic south pole.
There is only a magnetic north pole.
There are both magnetic north and south poles.
There are two magnetic north poles.
Which arrangement described below would result in magnetic poles that attract one another?
North Pole + South Pole
South Pole + West Pole
East Pole + North Pole
North Pole + North Pole
Why is an electromagnet a temporary magnet?
An electromagnet only attracts other permanent magnets.
An electromagnet becomes a magnet when a current flows through the wire. An electromagnet no longer acts as a magnet when the current flow stops.
An electromagnet cannot be turned on and off.
An electromagnet is a magnet when no current flows through the wire. The electromagnet no longer acts as a magnet when current flows through the wire.
What set of materials listed below could be used to create a complete electromagnet?
wires and battery
iron nail and battery
iron nail, magnet, and wire
battery, iron nail, copper wire
Where is a bar magnet's magnetic field the strongest?
red part of the magnet
longest part of the magnet
magnetic poles (N + S)
center of the magnet
A(n) ___________ is represented in the diagram it converts electrical energy into mechanical motion.
generator
electromagnet
parallel circuit
motor
Answers
Answer:
I actually have no idea
Explanation:
Sorry my man
Answer:
Explanation:
generator
a weak acid is 33 issociated at ph 5.0. what is the pka for this acid?
Answers
The pKa of a weak acid that is 33% dissociated at pH 5.0 is approximately 4.83.
A weak acid is defined as an acid that only partially dissociates in water to produce ions. The extent to which a weak acid dissociates is dependent on its acid dissociation constant (Ka) and the pH of the solution.
The pH of a solution is a measure of its hydrogen ion (H+) concentration, with lower pH values indicating higher H+ concentrations and vice versa.
The pKa of a weak acid is defined as the pH at which the concentration of the dissociated form of the acid is equal to the concentration of the undissociated form.
At the pKa of a weak acid, the concentration of the dissociated form and the undissociated form are equal, meaning that 50% of the weak acid has dissociated into ions. If we know the extent of dissociation at a particular pH, we can calculate the pKa using the equation:
pKa = -log10(Ka) = -log10([H+]/[HA])
where [H+] is the hydrogen ion concentration, [HA] is the concentration of the undissociated form of the acid, and Ka is the acid dissociation constant.
In this case, the weak acid is 33% dissociated at pH 5.0, meaning that [H+]/[HA] = 0.33. We can use this information to calculate the pKa:
pKa = -log10(0.33) = log10(1/0.33)
pKa = 0.52 + log10(3)
pKa = 0.52 + 0.48
pKa = 1.0
So, the pKa for the weak acid is approximately 4.83.
To know more about pKa here:
https://brainly.com/question/15074297#
#SPJ11
Which element is always associated with organic chemistry?.
Answers
Answer:carbon
Explanation:
Consider the starting mass of the tin (Sn) and the ending mass of the SnxOy product. To find the mass of oxygen in the product, you would _____
A) add the mass of tin from the mass of the product.
B) subtract the mass of tin from the mass of the product.
C) multiply the mass of tin from the mass of the product.
D) divide the mass of tin from the mass of the product.
Answers
Consider the starting mass of the tin (Sn) and the ending mass of the SnxOy product. To find the mass of oxygen in the product, you would. The correct answer is B) subtract the mass of tin from the mass of the product.
To find the mass of oxygen in the product, you need to determine the change in mass between the starting tin (Sn) and the ending SnxOy product. Since oxygen is being combined with tin to form the product, the change in mass represents the mass of oxygen gained. By subtracting the mass of tin from the mass of the product, you are effectively removing the contribution of tin from the total mass and leaving behind the mass attributed to oxygen.
For example, if you start with a certain mass of tin (Sn) and after the reaction, you have the SnxOy product with a different mass, the difference in mass is due to the gain of oxygen. By subtracting the initial mass of tin from the final mass of the product, you can determine the mass of oxygen present. This approach allows you to isolate and calculate the mass of oxygen specifically, without considering the mass of tin or any other elements or compounds involved in the reaction.
Therefore, to find the mass of oxygen in the product, you would subtract the mass of tin from the mass of the product.
Learn more about mass here:
https://brainly.com/question/26789700?
#SPJ11
The greater the mass of the object, the greater its weight force will be.
True or false.
Answers
Answer:
True
Explanation:
The greater the mass of the object, the greater its weight force will be.
The gradual temperature change from one season to the next is due to what? view attachment
Answers
Answer:
The greenhouse effect
Explanation:
The greenhouse effect is a straightforward method that heats the Earth's exterior. When the Sun's rays touch the Earth's environment, some of it is bounced back to space and the rest is grasped and re-heated by greenhouse gases. The consumed energy heats the environment and the exterior of the Earth.
a solution is made using 175.9 g of phenol (mm = 94.11 g/mol) and 70.0 g of acetone (mm = 58.08 g/mol). what is the mole fraction of the phenol in the solution?
Answers
The mole fraction of phenol in the solution is approximately 0.61.
Mole fraction is a way of expressing the composition of a solution. It is the ratio of the number of moles of a particular component in a solution to the total number of moles of all components in the solution.
To find the mole fraction of phenol, we first need to calculate the number of moles of phenol and acetone in the solution. We can use the formula:
number of moles = mass / molar mass
For phenol, the number of moles is:
175.9 g / 94.11 g/mol = 1.869 mol
For acetone, the number of moles is:
70.0 g / 58.08 g/mol = 1.206 mol
The total number of moles in the solution is:
1.869 mol + 1.206 mol = 3.075 mol
Now we can calculate the mole fraction of phenol using the formula:
mole fraction = number of moles of phenol / total number of moles
mole fraction = 1.869 mol / 3.075 mol
mole fraction = 0.607
Therefore, the mole fraction of phenol in the solution is 0.607, or approximately 0.61.
To know more about mole fraction click here:
https://brainly.com/question/29905133
#SPJ11
Particles moving very slowly from an area of higher concentration to an area of lower
concentration
Which process is being described?
A a liquid neing forzen
B a solid melting
C a substance diffusing through a liquid
D a substance diffusing through the air
Answers
Answer:
C Hope This Helped!
how many oxygen molecules are in 5.17g of oxygen gas
Answers
Answer:
is cool is cool goodcripopo
What element has 2 valence electrons and 2 energy levels
Answers
Answer:
helium
Explanation:
helium has 2 protons and 2 electrons. The 2 electrons are on the first energy level.