Answer:
The name of the two parts found on the left side of the equation is reactants.
Explanation:
Chemical reaction is the way one substance reacts against another. That is, a chemical reaction is that chemical process in which two or more substances, by the action of an energy factor, are converted into other substances. The new substance (s) that are formed usually present a totally different appearance from that of the starting substances.
In a chemical reaction there are the substances that react, that is, the reactants, and the substances produced, called products.
A chemical reaction is represented by a chemical equation. The formulas of the reactants are written on the left, and those of the products on the right, both separated by an arrow indicating the direction of the reaction.
Reactants ⇒ Products
Then, the name of the two parts found on the left side of the equation is reactants.
Based on the molecular structures of chloromethane and methane shown, a student makes the claim that a pure sample of chloromethane has stronger intermolecular forces than a pure sample of methane has.
Answer:
Yes, chloromethane has stronger intermolecular forces than a pure sample of methane has.
Explanation:
In both methane and chloromethane, there are weak dispersion forces. However, in methane, the dispersion forces are the only intermolecular forces present. Also, the lower molar mass of methane means that it has a lower degree of dispersion forces.
For chloromethane, there is in addition to dispersion forces, dipole-dipole interaction arising from the polar C-Cl bond in the molecule. Also the molar mass of chloromethane is greater than that of methane implying a greater magnitude of dispersion forces in operation.
Therefore, chloromethane has stronger intermolecular forces than a pure sample of methane has.
Yes, the claim that a pure sample of chloromethane has stronger intermolecular forces than a pure sample of methane is correct.
Intermolecular forces are weaker forces (Van Deer Waal forces) of attraction that pull molecules together. They are weaker than covalent bonds and they arise as a result of interaction between positively charged and negatively charged species (polarity).
The types of Van Deer Waal forces that exist are in decreasing order are:
dipole-dipole forcedipole-induced dipole forceinduced dipole-induced dipole forceIf we consider the molecular structures of both chloromethane and methane, we will realize that chloromethane has a higher intermolecular force than methane. This is due to the bond polarizability in chloromethane that does not exist in methane.
Thus, chloromethane exhibit a dipole-dipole force of attraction while methane undergoes a weak induced dipole-induced dipole force due to its lower polarity than chloromethane.
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A student drops a ball from 5 feet above the ground. After bouncing once, it only reaches a maximum height of 4 feet above the ground. Use energy terms to explain why the ball did not reach its original height after bouncing once.
Answer:
because the gravity of the ball can't go that high
There is a law called conservation of energy which states that energy can neither be created nor be destroyed. It can be only transferred from one form to another form. Therefore, some energy is lost to the environment as sound or heat.
What is energy transfer?Energy transfer is a phenomenon in which energy transfer from one matter to another matter. Energy can be transferred in two forms that are by doing work or by transferring heat.
Heat can be transferred by three ways conduction, convention and radiation. In conduction, when two object are in direct contact, transfer of molecules takes place. As the ball impacted the ground, the energy would have been lost to the environment as sound or heat.
Therefore, some energy is lost to the environment as sound or heat.
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What is the formula for the compound formed by lead(II) ions and Chlorine ions?
Answer:
Pb(CrO4)Al2(SO4)3
Explanation:
Question 9 of 10
What are the half-reactions for a galvanic cell with Zn and Ni electrodes?
A. Zn2+(aq) + 2e → Zn(s) and Ni2+(aq) + 2e → Ni(s)
B. Zn2+(aq) + 2e → Zn(s) and Ni(s) + Ni2+(aq) + 2e
C. Zn(s) → Zn2+(aq) + 2e and Ni(s) → Ni2+(aq) + 2e
O D. Zn(s) → Zn2+(aq) + 2e and Ni2+(aq) + 2e → Ni(s)
SUBMIT
Option D. Zn(s) → Zn2+(aq) + 2e and Ni2+(aq) + 2e → Ni(s)
What are half-reactions for a galvanic cell with Zn and Mg electrodes?The emf of a half-cell, with respect to the standard hydrogen electrode, is called the reduction potential. The emf for the Mg-Zn cell described would be: E=Eo(red) (Zn) - Eo(red) (Mg) = -0.76 - (-2.38) = 1.62V if the solutions are 1.0 M.
What are the half-reactions of a galvanic cell?A half-cell reaction is either an oxidation reaction in which electrons are lost or a reduction reaction in which electrons are gained. The reactions occur in an electrochemical cell in which the electrons are lost at the anode through oxidation and consumed at the cathode where the reduction occurs.
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Identify the products in the following chemical resction 2NaHCO3 + CaCI2 --> CaCO3 + CO2 + 2NaCI + H2O
the products are:
CaCO3 Calcium Carbonate
CO2 carbon dioxide
NaCI Sodium chloride
H2O Water
A 180-W resistor has 0.10 A of current through it. What is the potential difference across the resistor? Include numerical answer with correct units.
Ur a real one if u solve this no cap
And I only got 10 min to get the answer
Answer:
1800V
Explanation:
Given parameters:
Power in the resistor = 180W
Current = 0.1A
Unknown:
Potential difference = ?
Solution:
The power in a circuit is given as:
P = I V
P is the power
I is the current
V is the potential difference
Now insert the parameters and solve for V;
180 = 0.1 x V
V = 1800V
(a)² + (b)² = ?
help please
answer:
a^2+b^2= (a+b)² -2ab
how many bonds can nitrogen have
Answer:
3
Explanation:
I think so, let me know if its wrong.
What is Gallium Sulfide(Ga2S3).
Ionic or Covalent?
The purpose of warfare in our world
Answer
We are currently working on a dataset of war and large-scale violent events over the long run. If you want to contribute to this research please get in touch.
Explanation:
How many moles are there in 178 grams of Na 2 SO 4
Which of the following elements has the lowest lonization energy
A. Flourine
B. Francium
C. Hydrogen
D. Lithium
Answer:
Francium
Explanation:
Explanation:
B.francium................
What is the meaning of plate tectonics
Answer:
A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere. Plate size can vary greatly, from a few hundred to thousands of kilometers across; the Pacific and Antarctic Plates are among the largest.
Please Help ASAP Students set up a controlled experimernt. They put five
crickets in each of three identical containers. They set one
container to 15C, one to 20°C, and one to 25°C. Then they
count the number of cricket chirps in each container during
1 hour. What are the two constants in this experiment? You have to pick to answers.
A: The number of crickets in each container.
B: The temperature of each container.
C: The number of cricket chirps.
D: The kind of containers used.
Answer: A
Explanation:in learned this last year:)
A: The number of crickets in each container. and
C: The number of cricket chirps.
are possibly the right answers
I’ll mark you brainlist
Answer:
High mass star.
Explanation:
The mass of a star defines its life span. the least massive stars will live the longest and the most massive stars will use their fuel in a few million years and end in a spectacular supernova.
At which point in its orbit is a planet traveling fastest
Answer:
The fastest a planet moves is at perihelion (closest) and the slowest is at aphelion (farthest).
Explanation:
A planet travels fastest when the planet is closest to the sun also known as the perihelion.
What is an orbit?An orbit is a regular, repeating path that one object in space takes around another one.
The planet moves faster when it is nearer the Sun and slower when it is farther from the Sun.
A planet moves with constantly changing speed as it moves about its orbit.
The fastest a planet moves are at perihelion (closest) and the slowest is at aphelion (farthest).
The force of gravity acting on a planet is equal to its mass times its centripetal acceleration.
Force of gravity = [tex]\frac{m v^2}{r}[/tex]
The force of gravity is defined by Newton's law of universal gravitation as:
Force of gravity = [tex]\frac{mMG}{r^2}[/tex]
Therefore:
[tex]\frac{mMG}{r^2}[/tex] = [tex]\frac{m v^2}{r}[/tex]
[tex]\frac{MG}{r}[/tex]= [tex]v^2[/tex]
According to the equation if v increases r decreases.
Hence, the planet is moving fastest when it's closest to the sun, also known as the perihelion.
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What is the wavelength of electromagnetic radiation which has a frequency of 4.464 x 10^14 s-1
a. 1.338 x 10^23 m
b. 1.489 x 10^-6 m
c. 6.716 x 10^-7 nm
d. 671.6 nm
Answer:
d. 671.6 nm
Explanation:
It is possible to solve the wavelength of a radiation from its frequency -or vice versa- using:
λ = c / f
Where λ is wavelength,
c is speed of light, a constant (2.998x10⁸m/s)
And f is frequency: 4.464x10¹⁴s⁻¹
Replacing:
λ = 2.998x10⁸m/s / 4.464x10¹⁴s⁻¹
λ = 6.716x10⁻⁷m
As 1m = 1x10⁹nm:
6.716x10⁻⁷m * (1x10⁹nm / 1m) = 671.6nm
Right answer is:
d. 671.6 nm
MOLES AND MOLAR MASS
What type of plate boundary forms
snowy mountains?
J. convergent
K. divergent
L. transform
M. transition
Answer:
I believe it's j, convergent plate boundaries
The type of plate boundary that forms snowy mountains are convergent plate boundaries. option J is correct.
What are convergent plate boundaries?The convergent plate boundaries are which consist of two plates that move toward each other which results in the process called collision of two plates with each other.
The snowy mountains are full of snow which melts due to the change in temperature and leads to the formation of different plates and boundaries and the collision of two continental plates leads to the formation of this.
Therefore, option J is correct, the type of plate boundary that forms snowy mountains are convergent plate boundaries.
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How are two atoms of the same element alike?
Is it because they'll have the same make-up and both have the same amount of protons and neutrons??
Answer:
Explanation:
The nucleus of an atom contains neutrons and protons bonded tightly together. The same chemical element can have a different number of neutrons and still be the same element.
How many Elements are in the following molecule -CHNaO
Answer:
4 elements
C carbon
H hydrogen
Na sodium
O oxygen
Explanation:
Which element has an electron configuration that ends in the fourth energy 1 point
level? *
D
ОО
C
Answer:
here
Explanation:
which is the halogen that is in Period 5? a. iodine (I) b. strontium (Sr) ... 4. Which is a transition element with five d-block electrons in energy level 4? ... Which region contains elements with an electron configuration that ends with p3? a. A b.
Missing: point | Must include: point
A 10.-liter flask at a given temperature and pressure contains 6.0 × 1023 molecules of hydrogen gas. Under the same conditions of temperature and pressure, how many molecules would a 10.-liter flask of nitrogen gas contain?
Answer:
The same number of molecules, 6.0 × 10²³ molecules.
Explanation:
The amount of any given gas that can be stored in a container depends on the temperature, pressure and volume of the container. It does not depend on the nature (or identity) of the gas.
So if a 10-liter flask contains 6.0 × 10²³ molecules of hydrogen gas, it will contain the same amount of molecules of any other gas when temperature and pressure remain constant.
How many significant digits would you report an answer to if you divided 2.654 by 3.2?
answer choices
1
2
3
4
Answer:1
Explanation:
WILL GIVE BRAINLIEST
Which statement describes earthquakes?
They release energy.
They are caused by reduced stress in rocks.
They begin at the epicenter.
They result from movement on Earth’s surface.
Answer:
A
Explanation:
What is measurement?
Measurement is a process of finding a number that shows the amount of something.
Brainliest? Thanks!
calculate the mass of the reactants in the synthesis of water from hydrogen and oxygen. PLEASE HELP
Answer:
noc
Explanation:
xd
Answer:
It is possible to fill a balloon with a mixture of hydrogen and oxygen and find that ... the following equation is balanced because the total mass of the reactants is ... of hydrogen and one mole of oxygen is equal to the mass of two moles of water.
Explanation:
ig this can be Explanation:
and the answer:)
Number of H in 3(NH4)2Cro4
The number of H atoms in 3(NH₄)₂CrO₄ = 24
Further explanationThe empirical formula is the smallest comparison of atoms of compound forming elements.
A molecular formula is a formula that shows the number of atomic elements that make up a compound.
(empirical formula) n = molecular formula
Subscripts in the chemical formula indicate the number of atoms
The compound of 3(NH₄)₂CrO₄ ( 3 molecules of (NH₄)₂CrO₄ ) :
Number of H :
[tex]\tt 4\times 2(subscript)\times 3(coefficient,number~of~molecules)=24~atoms[/tex]
The number of Hydrogen (H) atoms in the compound, 3(NH₄)₂CrO₄ is 1.44×10²⁵ atoms
How to determine the mole of HMole of 3(NH₄)₂CrO₄ = 1 mole Mole of H in 3(NH₄)₂CrO₄ = 3 × 8 = 24 moles How to determine the number of atomsFrom Avogadro's hypothesis,
1 mole of H = 6.02×10²³ atoms
Therefore,
24 moles of H = 24 × 6.02×10²³
24 moles of H = 1.44×10²⁵ atoms
Thus, the number of atoms of H in 3(NH₄)₂CrO₄ is 1.44×10²⁵ atoms
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Object A has a mass of 500g and object B has a mass of 300g. Which object is more dense?
Answer:
500g because 300g is less dense than 500g its kinda like a weight
Explanation:
i
BOYLES LAW
GUYS PLZ HELP ME WITH THESE TWO
ILL CHOOSE U BRAINLIEST
use the formula p1v1= p2v2
for 1
300×300=500×x
x=180ml