How does electronegativity play a role in the strength of intermolecular forces.
Intermolecular forces such as dipole-dipole forces, London dispersion forces exist between molecules and these depend on strength of electronegativity of molecule.
What is intermolecular forces of attraction?Intermolecular forces of attraction is force of attraction that make two molecule come closer. Intermolecular forces of attraction is directly proportional to the electronegativity of the molecule.
Size of electronegative molecule is small so, if any other molecule or molecule come into contact with this molecule then this molecule attract the electron of other molecule very efficiently and therefore the force between the molecule increases.
Thus intermolecular forces of attraction is directly proportional to the strength of electronegativity.
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Provided here is an unbalanced chemical equation.
CuCl2 + Na3PO4 Cu3(PO4)2 + NaCl
Which of the following shows the product side of the correctly balanced equation?
please help!!!!
Answer:
3CuCl₂ + 2Na₃PO₄ → Cu₃(PO₄)₂ + 6NaCl
Explanation:
The reaction expression is given as:
CuCl₂ + Na₃PO₄ → Cu₃(PO₄)₂ + NaCl
To balance this expression, let us assign coefficients a, b, c and d;
aCuCl₂ + bNa₃PO₄ → cCu₃(PO₄)₂ + dNaCl
Conserving Cu: a = 3c
Cl: 2a = d
Na: 3b = d
P: b = 2c
O: 4b = 8c
let as c = 1, a = 3, d = 6 , b = 2
3CuCl₂ + 2Na₃PO₄ → Cu₃(PO₄)₂ + 6NaCl
Calculate the amount of heat released when one bottle (250 g) of water is cooled from 25°C to 30°C. The specific heat of water is 4.18 J/g°C.
Answer: the answer is a
Explanation: glad we have the same troubles Rn hahah
List these from smallest to largest- Molecules, Mixtures, Atoms
Atoms Molecules mixtures
For me its 10:00 but if someone in a class i can make it funny and not boring just gimmie link
All of the following are examples of suspensions except what?:
muddy water
Italian salad dressing
salt water
dust particles in the air
What do scientists do?
O A. They make sure all facts fit scientific theories.
O B. They learn about the world through observation.
O C. They use their knowledge to make public policy.
O D. They make ethical
Balance the chemical equation Au,O, --> Au + O2
Explanation:
Don't you mean ½O2+Au-->AuO
What is the volume occupied by 3.00mol of oxygen gas at STP?
What does it mean for a material to be brittle?
A. It bends easily when pressure is applied.
B. It breaks when pressure is applied.
C. It changes shape when pressure is applied.
D. It stretches into thin strands when pulled.
Answer:
B. it breaks when pressure is applied.
HELP PLEASE!!!!!!!! I WILL MARK BRAINLIEST!!!!!!!
Answer: option d
MARK BRAINLIEST!!!!!!
.00278kg • ____= ____mg
Answer:
blank space one- 0
blank space two- 0
Explanation:
PLEASE HELP DUDE SOON
The outermost shell is the
energy level that
contains in an atom.
Answer:
True hope this helps
Explanation:
A sample of chlorine gas has a volume of 6500 ml at STP. What will the volume be if the temperature is increased to 50.°C and the pressure is decreased to 0.25 atm?
Answer:
The volume will be 30759mL
Explanation:
To solve this question we need to use the combined gas law:
P₁V₁/T₁ = P₂V₂/T₂
Where P is pressure, V is volume and T is absolute temperature of 1, initial state and 2, final state of the gas
Computing the values (STP are 1atm and 273.15K):4
P₁ = 1atm
V = 6500mL
T₁ = 273.15K
P₂ = 0.25atm
V₂ = ?
T₂ = 273.15K + 50°C = 323.15K
1atm*6500mL/273.15K = 0.25atmV₂/323.15K
V₂ = 30759mL
The volume will be 30759mLSelect the correct answer.
Carbon burns in the presence of oxygen to give carbon dioxide. Which chemical equation describes this reaction?
OA
carbon + oxygen + carbon dioxide
OB.
carbon + oxygen - carbon dioxide
O c.
carbon dioxide. - carbon + oxygen
OD.
carbon dioxide + carbon - oxygen
Answer:
The answer is option OB.
Answer: B) carbon + oxygen - carbon dioxide
Explanation: The symmetry of a carbon dioxide molecule is linear and centrosymmetric at its equilibrium geometry. The length of the carbon-oxygen bond in carbon dioxide is 116.3 pm, noticeably shorter than the roughly 140-pm length of a typical single C–O bond, and shorter than most other C–O multiply-bonded functional groups such as carbonyls. Since it is centrosymmetric, the molecule has no electric dipole moment. As a linear triatomic molecule, CO2 has four vibrational modes as shown in the diagram. In the symmetric and the antisymmetric stretching modes, the atoms move along the axis of the molecule. There are two bending modes, which are degenerate, meaning that they have the same frequency and same energy, because of the symmetry of the molecule. When a molecule touches a surface or touches another molecule, the two bending modes can differ in frequency because the interaction is different for the two modes. Some of the vibrational modes are observed in the infrared (IR) spectrum: the antisymmetric stretching mode at wavenumber 2349 cm−1 (wavelength 4.25 μm) and the degenerate pair of bending modes at 667 cm−1 (wavelength 15 μm). The symmetric stretching mode does not create an electric dipole so is not observed in IR spectroscopy, but it is detected in by Raman spectroscopy at 1388 cm−1 (wavelength 7.2 μm).
Based on the data, summarize Alicia's results.
Describe how stirring the soup affects heat transfer.
Through which material do sound waves tend to move fastest
A:Cold Air
B:Metal
C:Water
D:Warm air
Answer:
METAL
Explanation:
Answer:
The answer would be B. Metal
Explanation:
Sound travels the fastest in solids
How many moles of phosphoric acid are there in
658 x 10 28 formula units
of phosphoric acid, H3PO4
Answer:
109.3 × 10⁵ mol
Explanation:
Given data:
Number of moles of phosphoric acid = ?
Number of formula units = 658 × 10²⁸
Solution:
The given problem will solve by using Avogadro number.
The number 6.022 × 10²³ is called Avogadro number.
1 mole contain 6.022 × 10²³ formula units,
658 × 10²⁸ formula units × 1 mol / 6.022 × 10²³ formula units
109.3 × 10⁵ mol
A second grade student approaches you and says that she learned that a lunar eclipse is the result of the Earth blocking the sun's rays from reaching the moon, which makes it look like the moon "disappears" from the sky for a night. Explain to her why this is incorrect.
Answer:
nah she right
Explanation:
Answer:
This is incorrect because a Lunar Eclipse blocks the Sun's rays from reaching EARTH. So for a few seconds, maybe minutes, there is not direct light on earth. So she is incorrect.
Explanation:
I am pretty sure this is right. I hope this helps
Can somebody plz help me with some grade7science?
A saturated solution become unsaturated when it is heated why?
Answer:
Due to application of heat on a saturated solution, the interparticle space increases due to increase in the kinetic energy of the particles which allows more solutes to dissolve in the solution thereby making it unsaturated.
Please help I will give 20 points
Explanation:
1.combined
2.bonds
3.retain
4.elements
hydrogen gas,oxygen gas
extinguish
5.sodium and chlorine
6.violently
7.Don't know for sure
I'm certain most but not all
Answer:
1.combined
2.bonds
3.retain
elements
hydrogen gas,oxygen gas
extinguish
sodium and chlorine
violently
Explanation:
same with 7
15 pts! Explain how the absorption of energy (heating) affects the speed of the particles in a substance.
Answer:
See explanation
Explanation:
Temperature has been severally defined as the measure of the average kinetic energy of the molecules of a body. Heat is a form of energy that exists due to temperature difference.
Given a body whose molecules has a speed = (3RT/M)^1/2; this implies that for a given mass of the substance, the velocity of its particles depends on the temperature of the substance.
However, absorption of heat increases the temperature of the body. Therefore, when heat is absorbed, the temperature increases and the speed of the particles of a substance increases according to the relation above.
Based on what you know about prokaryotic cells and
eukaryotic cells, the bacterial cell shown in the Venn diagram
below is a _____________________ cell while the fungal cell
is a __________________________ cell.
Answer:
based on what you know about prokaryotic cells and eukaryotic cells the bacterial cell shown in the venn diagram below is a prokaryotic cell while the fungal cell is a eukaryotic
Explanation:
hope it help and if it doesnt sorry ;)
PLEASE ANSWER ASAP ITS TIMED
2Al + Fe ----> Al2O3 +2Fe
For the reaction above, the mole ratio Aluminium to Aluminuim Oxide is
a.1:1
b.2:1
c.1:2
d.2:2
The mole ratio Aluminium to Aluminum Oxide is 2 : 1
Further explanationGiven
Reaction
2Al + Fe ----> Al2O3 +2Fe
Required
The mol ratio
Solution
If we look at the reaction above, there is an element missing from the reactant i.e oxygen, because the number of atoms and elements involved in the reaction should be the same between the reactants and products.
So the possible and balanced reactions are:
2Al(s) + Fe₂O₃ (s) → Al₂O₃ (s)+ 2Fe (s)
From this reaction the ratio of Al: Al₂O₃ can be determined, which is 2: 1
what is neutralization process
Explanation:
when an acid reacts with base and they cancel out defects of each other and as a product salt and water are produced this reaction is called a neutralization process
A population of large predator
fish has recently grown out of
control. How will this impact
the ecosystem?
Answer:
they will eat a lot of fish and make other animals go hungry
Explanation:
logic
As the population of large predator fish has grown out of control it will require more supply food due to which population of small fishes will decrease leading to disturbance in ecosystem.
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 .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
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1. A wave had a wavelength of 5m and speed of 15m/s, what is the frequency
2. Red light has a longer wavelength than violet light, which one has the greater frequency?(hint they both travel at the same speed)
3. If speed of a longitudinal sound wave is 340m/s and the frequency is 1000 Hz, what is the wavelength?
Answer:
Frequency is 3HZ.
Explanation:15/5 =3
Violet has more frequency
Wavelength is 340000m.
If you observe a Full Moon on Jan 12th, on what date would you observe the next New Moon?
Answer:
January, 28th.
Explanation:
yeet
How is coal mined? A. surface mines only B. underground and open pit C.underground mines only
Answer:
b
Explanation:
they have coal mines that go down deep into the earth but they also have mines called strip pits where they dig down and create a large creator in the earth insted of a mine shaft