Answer:
1. The molecule must possess polar covalent bonds in its structure
2. The molecule must have a NET DIPOLE moment
Explanation:
Polar molecules occur when two atoms do not share electrons equally in a covalent bond. A dipole forms, with part of the molecule carrying a slight positive charge and the other part carrying a slight negative charge. This happens when there is a difference between the electronegativity values of each atom.
Polar molecules have an asymmetrical form and polar covalent connections due to atoms' different electronegativities, resulting in an unequal electron density distribution and a net dipole moment.
To determine the polarity of a molecule, two conditions need to be satisfied:
The molecule must have an asymmetrical shape, and its electron density must be irregular. When the atoms that make up the molecule have different electronegativities, the electrons are drawn to one atom in the molecule more than they are drawn to another. Because of this excess electron density, one side of the molecule will become slightly negative (-), while the other side will become slightly positive (+).
Polar Bonds: In order for the molecule to function properly, it must contain polar covalent bonds. When two atoms with differing electronegativities share electrons in an unequal manner, a polar covalent bond is formed. This results in one atom having a partial positive charge and the other atom having a partial negative charge. When a molecule has multiple polar covalent connections and an asymmetrical shape, the dipole moment of the molecule is said to be polar.
Polarity can be attributed to the asymmetrical bent shape of water (H2O) as well as the covalent interactions between hydrogen and oxygen. Due to the fact that oxygen has a greater electronegative potential than hydrogen, electrons are drawn towards oxygen, which results in oxygen atoms having a partial negative charge whereas hydrogen atoms have a partial positive charge.
Because of the varying electronegativity of the atoms, a polar molecule needs to have an asymmetrical structure and polar covalent bonds in order to exist. As a result of these conditions, polar molecules possess an uneven distribution of their electron density as well as a net dipole moment.
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how is the periodic law demonstrated within the groups of the periodic table
Answer:
# of electron shells
Explanation:
Elements in the same periodic group have the same number of electron shells.
11. Start level 3 of the balancing equation game. Take turns and write down the equations as you solve them, along with any new strategies you needed for balancing.
CHALLENGE QUESTIONS: BALANCE THE EQUATIONS BELOW.
A. ___ NaNO3 + ___ PbO ___ Pb(NO3)2 + ___ Na2O
B. ___ Ca3P2 + ___ H2O ___Ca(OH)2 + ___ PH3
C. ___Fe2O3 + ___ CO ___Fe + ___ CO2
D. ___NH3 + ___ O2 ___ NO2 + ___ H2O
E. ___FeS + ___O2 ___Fe2O3 + ___SO2
F. ___ C3H6O2 + ___ O2 ___ CO2 + ___ H2O
In balancing reaction equations, The number of atoms of each element on both sides of the reaction equation must be the same.
The major rule that guides the balancing of chemical reaction equations is that the total number of atoms of each element on the right hand side of reaction equation is equal to the total number of atoms of the same element on the left hand side of the reaction equation. For each of the equations shown;
2NaNO3 + PbO -------> Pb(NO3)2 + Na2OCa3P2 + 6H2O→ 3Ca(OH)2 + 2PH3Fe2O3 + 3CO ------> 2Fe + 3CO24NH3 + 7O2 ------> 4NO2 + 6H2O4FeS + 7O2 -----> 2Fe2O3 + 4SO22C3H6O2 + 7O2 -----> 6CO2 +6H2OLearn more: https://brainly.com/question/8646601
2. Pick two materials that float from the table above.
Observe how high the two materials float in the water and compare this to the density of the two objects.
What do you notice?
An object with a lower density will float
than an object with a higher density.
(higher/lower)
Explanation:
so let's say fertilizer sinks it would be higher density and like salt it would be a solvent hope that helps honestly it probably did not but kind of a guide I guess and another one is ice it will be like a toy and here's a tip water is and always will be 1 gl
The pressure of a gas at 35.6oC is 114.3kPa. What is the pressure when the temperature drops to 17.3oC? Assume constant volume.
Answer:
107.5252955kPa or 108kPa
Explanation:
Use Gay Lussac's Law, P1/T1 = P2/T2
Manipulate the equation: P2 = P1*T2/T1
Change C to K: 35.6C = 308.75K and 17.3 = 290.45K
Input the values: P2 = (114.3kPa)(290.45K)/308.75K
P2= 107.5252955kPa
You probably want to round to 3 sig figs, so 108kPa
which two types of particles are present in equal numbers in an atom
Answer:
An atom contains equal numbers of protons and electrons .
What would happen if
you tried to cut a sheet
of aluminum foil in half
over and over again?
Answer:
it's properties would remain untouched though it's Changing physically
4. The octet rule is a rule that governs bond formation. It states that -
a. elements can only gain 8 electrons
b. all elements lose 8 electrons
c.all elements will gain, lose or share electrons in order to obtain 8
electrons in their outer energy level
d. all elements share 8 electrons
An electrolyte can be checked to ensure that it has correct chemical composition by measuring its _____.
Answer:
specific gravity
Explanation:
Which statements best describe displacement? Check all that apply.
1.Displacement is measured along the path an object travels.
2.Displacement is a measurement that includes direction.
3.Displacement is the difference between a starting point and an ending point.
4.Displacement is how far an object travels from starting point to ending point.
5.Displacement is measured as a straight line between a starting point and an ending point.
Answer: The answer is B, C, and E.
Explanation:
Pls, mark me brainliest.
Displacement can be defined as the difference between a starting point and an ending point. Displacement is a measurement that includes direction and is measured as a straight line between a starting point and an ending point. Therefore, option (2), (3), and (5) are correct.
What is displacement?The displacement of an object can be described as the change in the position of an object. The displacement is the minimum length between the initial and the final point.
The displacement is the vector quantity posses both distance and magnitude. Therefore, the measurement of the displacement includes direction.
Displacement can also be described as the difference between a starting point and an ending point. Displacement can be measured as a straight line between a starting point and an ending point.
The S.I. unit of the displacement is the same as the distance i.e. meters and the C.G.S. unit are centimeters.
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tron 500ml dung dich NAOH 0,1M voi 500ml dung dich HCL 0,12M tinh ph dung dich saun phan ung
Answer:
Explanation:
"Khối lượng NaOH rắn cần dùng để pha 500mL dung dịch NaOH 0,1M là bao nhiêu?" Để tạo ra dung dịch chứa một mol NaOH, cần hòa tan 40 gam NaOH trong 500mL H2O.
Make a list of some other common mixtures. Stating what they are mixtures of.
lemon juice
fry rice
biryani
lassi
slime etc
What is the charge of a neutron?
it changes
positive
no charge (neutral)
negative
If you wanted to find a type of atom in your little finger that has been in its present form (been the same element) since the beginning of the universe, which element should you look for
An atom that has been present in the little finger and has been in its present form since the beginning of the universe is the element calcium.
The human body, just like every other thing in the universe is composed of atoms. An atom is the smallest particle of a substance that can take part in a chemical reaction.
An atom that has been present in the little finger and has been in its present form since the beginning of the universe is the element calcium. Calcium is found in abundance in human extremities.
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True/False: Polycrystalline materials have many mis-oriented crystalline grains in their microstructure because the phase transformations used to create these materials (e.g., solidification) occur via a nucleation and growth process.
The statement 'polycrystalline materials have misoriented crystalline grains because phase transformations occur via a nucleation and growth process' is TRUE. Polycrystalline materials consist of many crystallites.
Polycrystalline materials are solid materials consisting of many crystallites, which vary in both size and orientation.
Polycrystalline materials include, among others, rocks, ice, metals, ceramics, etc.
Nucleation refers to the chemical process by which solid crystals form from a liquid.
In the solidification of polycrystalline materials via nucleation, molecules are first arranged in a particular pattern form which additional particles can be added as the crystal grows.
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Your classmate says that the farther the two atoms are apart in a bond, the larger the dipole moment will be. Is your classmate correct
Answer:
The answer is Yes
Explanation:
I jus got it right no cap
Your classmate says that the farther the two atoms are apart in a bond, the larger the dipole moment will be, this statement is correct.
What is bond ?An enduring attraction between atoms or ions known as a chemical bond is what allows molecules and crystals to form. The bond may be created by the sharing of electrons in covalent bonds or by the electrostatic attraction of two oppositely charged ions, as in ionic bonds.
Chemical bonds are formed when the atoms in a compound's molecule are brought together and kept together by a powerful combining force. Ionic and covalent bonds are the two different kinds of chemical bonding.
Atoms trade or exchange valence electrons to create bonds. The electrons at an atom's outermost energy level, known as valence electrons, have the potential to interact chemically. All chemical bonds are built on valence electrons.
Thus, the farther the two atoms are apart in a bond, the larger the dipole moment will be, this statement is correct.
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anyone wanna play animal crossing with me?
Answer:
Play what exactly???????
I need help with this
Answer:
26.00 units of Volume.....
Asap help for Brainlist
Answer:
2nd option
Hope this helps!
help asap for brainlist
How will you convert 3.45 Kilometers to meter. Choose from the following options.
Question options:
Move the decimal in 3.45 TWO places to the right to increase the value.
Move the decimal in 3.45 TWO places to the left to decrease the value.
Move the decimal in 3.45 THREE places to the right to increase the value.
Move the decimal in 3.45 TWO places to the right to decrease the value.
Answer:
Move the decimal in 3.45 THREE places to the right to increase the value.
Explanation:
3.45km = 3450m (multiply by 1000)
Answer:
3rd option is the correct answer
Hope this helps!
what is the stage that all stars in our galaxy go through
Answer:
Heavy stars turn into supernovae, neutron stars and black holes whereas average stars like the sun end life as a white dwarf surrounded by a disappearing planetary nebula. All stars, however, follow roughly the same basic seven-stage life cycle, starting as a gas cloud and ending as a star remnant.
Are these different elements? Think about what helps you to locate an element on the Periodic Table.
Atom A: 14 protons; 12 electrons; 15 neutrons
Atom B: 12 protons; 14 electrons; 13 neutrons
How can you increase the strength of the magnetic force on an object like a paper clip?
Answer:
"Iron bar magnets Fill a bowl or pan with some water. Find something that will float on the water. Lay the magnet on top of this object. The magnet will twirl in the water until it comes to rest pointing exactly north and south due to the magnetic force of the North Pole."-- science.howstuffworks.com. Or you could just increase the surface area.
Explanation:
The strength of the magnet force is maximum at the poles and minimum at the centre. A magnet can exerts a magnetic force on the other magnets as well. Here by using the soft iron bar as the magnet, the strength of the magnetic force on an object can be increased.
A magnetic force is defined as the force that a magnet exerts on certain materials like iron, steel, nickel, etc. This type of force is a non-contact force because it can act from a distance.
By using iron bar magnet or by increasing the numbers of turns of the coil can pick up more paper clips.
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Number of
Protons
Number of
Neutrons
Atomic
Number
Mass
Number
Element
(symbol)
А
7
B.
15
с
D
E
26
56
F.
Using the periodic table, complete the table to describe each atom. Type in your answers.
A
B
с
N
D
Gina has brown eyes. Her mother also has brown eyes, but her father has blue eyes. Most of the people in Gina's town have brown eyes.
Gina most likely inherited brown eyes from _______.
A.
her mother
B.
no one
C.
her father
D.
the townspeople
Answer:
anser is A
Explanation:
the mother genes are always stronger than the dads
Answer:
A
Explanation:
How can a chemical reaction be sped up?
Select from the drop-down menu to correctly complete the statement.
Add a ___ that is unaffected by a reaction.
A:Catalyst
B:Coefficient
C:Product
Answer:
A.Catalyst
Explanation:
the correct answer is A
What is the difference between brown sugar and granulated sugar?
What is the ability of a substance to change into something else?
Answer:
chemical synthesis or chemical property
Explanation:
How many mL in 5.867 L?
Answer:
5867ml is the answer to 5.867L to ml
potassium, k, has 19 protons, 20 neutrons, and 19 electrons. what is the charge of the atom’s nucleus?
from the 19 protons
Answer:
+19
Explanation:
potassium, k, has 19 protons, 20 neutrons, and 19 electrons. what is the charge of the atom’s nucleus?
since only neutrons and protons are in the nucleus, the overall charge in the nucleus is +19 from the 19 protons
If you dissolve 0.1 mol of formic acid in 1 L of water, ther esulting solution contains 0.004 mol of H₃O+. Based on this information, is formic acid a strong acid, or is it a weak acid?
Answer: Consider the equilibrium of the generalized acid, HX , in aqueous solution….
HX(aq)+H2O(l)⇌H3O++X−
As we FACE the page, the given reaction, with FORMIC acid, HC(=O)OH , produces ONLY millimolar concentration with respect to hydronium ion, and acetate ion … and thus, as anticipated, formic acid is a WEAK acid…. pKa=3.79 .
i.e. Ka=(0.004∙mol∙L−1)20.10∙mol∙L−1−0.004∙mol∙L−1=1.60×10−4
pKa=−log10(1.60×10−4)=−(−3.79)=+3.79
….formic acid is nevertheless a STRONGER acid than acetic acid, for which pKa=+4.76 .
Explanation:
