The number of moles of Hydrogen : 1.993
Further explanationGiven
1.20 x 10²⁴ hydrogen atoms
Required
The number of moles
Solution
The mole is the number of particles(molecules, atoms, ions) contained in a substance
1 mol = 6.02.10²³ particles
Can be formulated :
N=n x No
N = number of particles
n = mol
No = Avogadro's = 6.02.10²³
moles of Hydrogen :
[tex]\tt n=\dfrac{N}{No}\\\\n=\dfrac{1.2\times 10^{24}}{6.02\times 10^{23}}\\\\n=1.993~moles[/tex]
Can someone help me, please
Would the chemical bond that forms between oxygen & titanium be ionic or covalent?
You must use/underline the following words/phrases in your paragraph:
- ionic bond - covalent bond
- electrons - transfer
- share - electronegativity
- strong - electronegativity difference
Answer:
- ionic bond - covalent bond
- electrons - transfer
- share - electronegativity
- strong - electronegativity difference
Explanation:
The chemical bond that forms between oxygen & titanium be covalent bond.
What is Covalent Bond ?A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms.
These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.
Titanium dioxide is a covalent compound in which the titanium atom is bonded to each oxygen through double bonds.
It consists of covalent bonds, with titanium is in a +4 oxidation state. Therefore, titanium dioxide is a covalent compound.
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The___ of an element is the number of
element.*
__ of an atom of that
atomic mass, electrons in the nucleus
mass number, neutrons in the nucleus
mass number, protons plus neutrons in the outermost energy level
atomic number, protons in the nucleus
Answer:atomic mass, neutrons in the nucleus
Explanation: because I remember from when I took honors chemistry last year we learned about this and it’s called the atomic mass when looking at an atom and the neutrons in the nucleus are effected by it.
A gas occupies 12.3 liters at a pressure of 40.0 mm Hg. What is the volume when the pressure is increased to 60.0 mm Hg?
V1 = V2 =
P1 = P2 =
k = k =
Answer:
Final volume = V₂ = 8.2L
Explanation:
Given data:
Initial volume = 12.3 L
Initial pressure = 40.0 mmHg
Final volume = ?
Final pressure = 60.0 mmHg
Solution:
The given problem will be solved through the Boyle's law,
"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"
Mathematical expression:
P₁V₁ = P₂V₂
P₁ = Initial pressure
V₁ = initial volume
P₂ = final pressure
V₂ = final volume
Now we will put the values in formula,
P₁V₁ = P₂V₂
40.0 mmHg × 12.3 L = 60.0 mmHg × V₂
V₂ = 40.0 mmHg × 12.3 L / 60.0 mmHg
V₂ = 492 mmHg. L / 60.0 mmHg
V₂ = 8.2L
what is neutralization reaction?
Explanation:
neutralization is a chemical reaction in which acid and a base react equal with each other.
Answer:
Explanation:
A neutralization reaction is when an acid and a base react to form water and a salt
Hope it helps
What is the mass of 7.00 moles of H2O2
Answer:
The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles H2O2, or 34.01468 grams.
Explanation:
The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles H2O2, or 34.01468 grams.
Answer:7.00 moles of H2O2
Explanation:
The number of protons and neutrons combined in an atom of a particular element
Which of the following transports electricity between objects in a circuit?
Battery
Light bulb
Switch
Wire
Answer:
Wire.
Explanation:
The wire has movable electrons, which moves the charge and the electricity around.
Battery provides the electricity by electrical potential energy, not transport it.
The switch toggles between an open circuit and a closed one, where only the closed one has a full loop of wire to transport electricity.
And the light bulb uses electricity.
Hope this helped!
Find the number of atoms and find the number of moles of S in 16 grams of sulphur
Answer:
Number of moles = 0.5 mol
3.011 ×10²³ atoms
Explanation:
Given data:
Mass of sulfur = 16 g
Number of moles = ?
Number of atoms = ?
Solution:
Number of moles of S:
Number of moles = mass/molar mass
Number of moles = 16 g/ 32 g/mol
Number of moles = 0.5 mol
Number of atoms:
1 mole contain 6.022×10²³ atoms
0.5 mol × 6.022×10²³ atoms / 1 mol
3.011 ×10²³ atoms
what are atoms?
1.electronic devices
2.batteries
3.light bulbs
4.particles of matter
Answer:
4. particles of matter
Answer:
The basic unit of a chemical element. The answer is 4 particles of matter.
can anyone please help
what is the anwser to this question
Answer:
Is there a picture if so I can't see it
Answer:
Third option.
Explanation:
when the balloon is rising to high altitudes, the air pressure decreases. so the helium in the balloon increases and expands the balloon.
hope this helps :)
Mole Conversion:Find the number of moles in 384g of cobalt.
Answer:
6.51585239863
Explanation:
divide the grams by the molar mass
384/58.933195
help would be much appreciated! i'll mark brainliest
Answer:
GROUP 2
Explanation:
u asked this already
i just dont understand...
Why would two populations
of organisms compete for
resources in an
ecosystem?
Answer:
For shelter, will to live, offspring, etc.
The resources may be in low supply and they will have to fight or die
Explanation:
A 0.860-kg sample of tin (with a specific heat of 210.0 J/(kg x K)) is heated to 525 K and then placed in 1.20 kg of water that is at 303 K. If the system is left to reach its equilibrium state, what will the equilibrium temperature be? Assume that no thermal energy is lost to the external environment. Use 4.186 J/(g x K) as the specific heat of water.
PLEASE ANSWER QUICK WILL GIVE BRAINLIEST
Answer: 310K
Explanation: I got it right
Answer:
310 k
Explanation:
Hope this helps
Please select the word from the list that best fits the definition
Equal to frequency x wavelength
wavelength
wave speed
frequency
period
Answer:
wave speed
Explanation:
A wave is a disturbance that transmits energy from one place to another without the actual displacement of the particles of the medium.
To find the wave speed we need to determine the product of its frequency and wavelength.
Wave speed = Frequency x wavelength
Frequency of wave is the number of wave that passes through a point at a unit time.
Wavelength is the displacement of a complete wave train.
Briefly describe metals
Answer:In chemistry, a metal is an element that readily forms positive ions (cations) and has metallic bonds. Metals are sometimes described as a lattice of positive ions surrounded by a cloud of delocalized electrons. ... The traditional definition focuses on the bulk properties of metals.
Explanation:
Answer:
metal is a type of element to be percise M.O in the element periodic table
Explanation:
ur welcome
Does anyone know what the formula would be for Rhenium V Biphosphate?
Answer:Re3(PO4)2 I think I'm wrong
Explanation:
Which is the best description of a molecule?
A molecule of an element is composed of at least two types of atoms.
B molecule of a compound is composed of only one type of atom.
C molecule of a compound is composed of at least two types of atoms.
D molecule of an element is composed of exactly two types of atoms.
Thirsty Thursday:) post your celebrity crush
Or post your favorite drink :)
Answer:
My celebrity crush is young Keanu Reeves and my favorite drink is matcha tea
Explanation:
Answer: I don't really have a celeb crush but my favorite drink is Mango Slushie with boba.
Explanation:
PLEASE HELP!!!! What is the abbreviated electron configuration for nitrogen and for chlorine
Answer:chlorine’s is (Ne) 3s2 3p5
Explanation:lol
Answer: chlorine [Ne] 3s² 3p⁵ nitrogen 3s²2p³
A photon of light produced by a surgical laser has a wavelength of
821 nm. What is the energy of this photon? (note: h = 6.626 x
10-34 J.)
Answer:
E = 0.024 ×10⁻¹⁷ J
Explanation:
Given data:
Wavelength of photon = 821 nm (821 ×10⁻⁹ m)
Energy of photon = ?
Solution:
Formula:
E = hc/λ
h = plancks constant = 6.626×10⁻³⁴ Js
c = speed of light = 3×10⁸ m/s
by putting values
E = 6.626×10⁻³⁴ Js × 3×10⁸ m/s / 821 ×10⁻⁹ m
E = 19.878×10⁻²⁶ J.m/ 821 ×10⁻⁹ m
E = 0.024 ×10⁻¹⁷ J
formic acid is a stronger acid than Acetic Acid, why ?
Answer:
In acetic acid, due to the +I effect of the alkyl group the electron density on the oxygen atom increases.
The release of H + ion becomes difficult. Thus , greater the magnitude of +I effect weaker will be the acid.
Order of +I effect : CH 3>H
Therefore , formic acid (HCOOH) is more acidic than acetic acid (CH 3COOH).
16. According to the fossil record, when did the first modern humans evolve?
Answer: 1.8 million years ago
Explanation:
This is the chemical equation for the production of ammonia (chemical formula: NH3) from Nitrogen and Hydrogen (N2 and H2):
N2 + H2 --> NH3
A student balanced the above chemical reaction as follows:
N2 + H2 --> N2H2
Explain why this is the incorrect way to balance an equation.
Answer:
Honestly, I'm not even sure what the incorrect student was trying to do. The correct answer is:
( ) = the number of elements
(1)N2 and (3)H2
I think the student added the N2 and H2 to "balance" the chemical equation when instead they should have tried the balance the equation by making sure the atoms on the reactant side are equal to the atoms on the product side. You do this by multiplying the atoms on the reactant side until they equal the product side (not by adding them, as the student did).
This is an incorrect way to balance a chemical equation as coefficients are added in front of chemical formula rather than as subscripts.
What is chemical equation?Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.
A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .
The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.
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Which of the following objects is the most malleable?
Gold
Gold is the most malleable and ductile of all known metals. A single ounce of gold can be beaten into a sheet measuring roughly 5 meters on a side.
Most elements occur in nature as a single isotope.
TRUE
FALSE
Answer:
false
Explanation:
because elements never exist in nature as single isotopes they are always combined
Answer:
FALSE
Explanation:
in the cases of three elements (tellurium, indium, and rhenium) the most abundant isotope found in nature is actually one (or two) extremely long-lived radioisotope(s) of the element, despite these elements having one or more stable isotopes.
apakah fungsi sel palisade
Answer:
Sel palisade terdapat di daun dan fungsi utamanya adalah penyerapan cahaya sehingga fotosintesis dapat berlangsung.
Explanation:
how many ions are in magnesium nitride
