Answer:
P = 27.9 atm
Explanation:
Given data:
Mass of CO₂ = 25 g
Temperature = 25°C (25+273.15 K = 298.15 K)
Volume of gas = 0.50 L
Pressure of gas = ?
Solution:
Firs of all we will calculate the number of moles of gas,
Number of moles = mass/molar mass
Number of moles = 25 g/ 44 g/mol
Number of moles = 0.57 mol
Pressure of gas :
PV = nRT
P= Pressure
V = volume
n = number of moles
R = general gas constant = 0.0821 atm.L/ mol.K
T = temperature in kelvin
P × 0.50 L = 0.57 mol × 0.0821 atm.L/ mol.K × 298.15 K
P = 13.95 atm.L/ 0.50 L
P = 27.9 atm
What angle do parallel lines form when they intersect?
Answer:When two lines are cut by a transversal, the pairs of angles on one side of the transversal and inside the two lines are called the consecutive interior angles . If two parallel lines are cut by a transversal, then the pairs of consecutive interior angles formed are supplementary
Explanation:
Which layer in this model represents the least dense layer of the geosphere? - А B C D
Answer:
A
Explanation:
The area that represents the least dense part of the geosphere is the portion or region A.
Density is the determined by the packing of a layer.
The geosphere is the solid part of the earth Since A denotes the crust, it is the least dense part of the earth. In particular, the continental crust is the least dense part of the earth. During the differentiation of the earth, denser minerals gravitated towards the center and the lighter ones partitioned to the surface. This makes the crust the least dense portion of the earthAnswer:
the answer is A
Explanation:
a P e x
if you want brainliest answer this pleaseeee
a bacterium has a length of 5.5 10-6 m but seen through a powerful microscope it appears to be 1.2 10-3 m. what is the magnification of the microscope?
a virtual image is produced by a convex mirror that is 1.60 cm from the mirror. if the magnification is 0.20 how far from the mirror is the object?
Answer:
what are the answer choices
Explanation:
Answer:
3x
Explanation:
what happens to the atoms when a paper burns
Answer:
the two atoms will combine and release energy
Which description lists Earth's layers from most superficial to deepest?
Lithosphere, asthenosphere, lower mantle, outer core, inner core
Lithosphere, lower mantle, asthenosphere, outer core, inner core
Asthenosphere, Lithosphere, lower mantle, inner core, outer core
Inner core, outer core, lower mantle, asthenosphere, lithosphere,
Answer:
Lithosphere, asthenosphere , lower mantle
Explanation:
took on edge 2021!
Write a chemical equation for the dissociation of nitric acid HNO3
Answer:
I can't do that but this is the best I can do for you :(
Explanation:
Nitric acid, HNO3(aq), breaks up into ions (a cation and an anion) in a water solution.
What type of charging happens in the can when the balloon is bought near?
This planet has the largest temperature range in the solar system.
Mercury
Venus
O Earth
Mars
Answer: Mercury!!!!!!
Explanation:
Highs and lows. Orbiting between 28 and 43 million miles (46 and 70 million kilometers) from the sun, Mercury, also the smallest planet, feels the brunt of the solar rays. According to NASA, the tiny world suffers the most extreme temperature range of any other planet in the solar system.
Have great day!
Answer:
Mercury
Explanation:
Highs and lows. Orbiting between 28 and 43 million miles (46 and 70 million kilometers) from the sun, Mercury, also the smallest planet, feels the brunt of the solar rays.
please help I only have 5 hours left
Answer:
i think b or c
Explanation:
How many electrons are in Na+
Answer:
10
Explanation:
10 ELECTRONS ARE IN
Na+
The main sugar that is used as a reactant in cellular respiration is called
Answer:
I believe that the answer is glucose?
Explanation:
if not, tell me the answer choices and i will help u from there
!!Please help I will name u brainliest!! this is for 9th grade physical science
Answer:
a. no 2 7 4 6
b. yes
c. no 3 2 6 1
d. no 2 1 2
a. 1 2 2 1
b. 3 1 3 2
c. 1 5 2
d. 1 1 2
HELP ASAPPPPPPPPP I WILL GIVE BRAINLIEST
The graph represents the relationship between temperature and time as energy is removed from a sample of H2O.
Which statement correctly describes the energy of the particles of the sample during interval D–E?
Potential energy decreases and average kinetic energy increases.
Potential energy decreases and average kinetic energy increases.
Potential energy increases and average kinetic energy increases.
Potential energy increases and average kinetic energy increases.
Potential energy decreases and average kinetic energy remains the same.
Potential energy decreases and average kinetic energy remains the same.
Potential energy remains the same and average kinetic energy increases.
Answer:
C. Potential energy decreases and kinetic energy remains the same.
Explanation:
Why is graphite used for electrodes?
Answer:
Graphite is an electrical conductor, hence useful in such applications as arc lamp electrodes. It can conduct electricity due to the vast electron delocalization within the carbon layers (a phenomenon called aromaticity). These valence electrons are free to move, so are able to conduct electricity.
Explanation:
Graphite is used for electrodes because
The atomic structure of graphite results in a large number of electrons not being bonded, allowing them to migrate between the layers of graphite. It is this large number of free electrons (electron delocalization) that give graphite its excellent conductive properties. As well as being a good conductor, graphite is also cheap, robust and easily accessible.
10. Which phase of matter is likely to be compressible and show rapid diffusion?
A. Gas
B. Liquid
C. Solid
Answer:
gas
Explanation:
because gas is compressible and has a lot of free space between particles
Write the isotope notation for an element with 12 protons and 14 neutrons.
i swear if someone helps me with this I’ll give them the biggest hug lol
Answer:
C
Explanation:
Bc Look at it like this if norm and grav are equal aka the reason why hes not going threw the cement or flying in the air then the app and the fric are equal too or he would slip and fall
Could really use some help with this!!! What are some chemical properties of nickel?
Answer:
Nickel is silvery-white, hard, malleable, and ductile metal.
It is a good conductor of heat and electricity.
It is bivalent, that is it has a valency of two.
The metal dissolves slowly in dilute acids.
Explanation:
Answer:
Atomic number: 28
Atomic mass: 58.71 g.mol
Melting point: 1453°C
Explanation:
I answered based off what i understood lol. I dunno if this is what you meant but here you go ig
pt The crystal lattice structure of an ionic compound
A. is weak due to the interactions of the ion
B. is weak due to the independence of the ions
OC. is strong due to the interactions of the ions
D. is strong due to the independence of the ions
Answer:
D. is strong due to the independence of the ions
Explanation:
In an ionic solid, the ions are packed together into a repeating array called a crystal lattice.
The concept of crystal packing assumes that the ions are hard spheres. successive layers over it. The simplest arrangement is one in which the spheres in the base are packed side by side.The crystal lattice structure of an ionic compound is strong due to the interactions of the ions. Therefore, option (C) is correct.
What are ionic compounds?Ionic compounds can be defined as crystalline solids which are formed by closely packing ions of opposite charge due to the interactions of the ions. An Ionic compound is usually created when metal reacts with non-metal.
In ionic compounds, the ions are held together by ionic bonds due to the interactions of the ions. The ions are formed from atoms by gaining or losing electrons in order to attain their noble gas configuration.
A cation in ionic compounds refers to an electropositive ion and has the tendency to donate valence electrons. Similarly, anions in ionic compounds can be defined as electronegative ions and have a tendency to accept electrons.
In an ionic compound, there exists a large electrostatic force of attraction that forms a strong ionic bond.
Learn more about ionic compounds, here:
brainly.com/question/17217225
#SPJ2
How many moles of butane do we have if we have 5.50 x 1024 molecules
of butane (CH) ?
Answer:
9.14moles
Explanation:
Given parameters:
Number of atoms of butane = 5.5 x 10²⁴atoms
Unknown:
Number of moles = ?
Solution:
To solve this problem, we must understand that a mole of any substance contains the Avogadro's number of particles.
6.02 x 10²³ atoms makes up 1 mole of an atom
5.5 x 10²⁴ atoms will contain = [tex]\frac{5.5 x 10^{24} }{6.02 x 10^{23} }[/tex] = 9.14moles
What is the name of the ion formed from an atom with 12 protons?
Answer:
Magnesium ion
Explanation:
The name of the ion formed from an atom with 12 protons is magnesium ion.
The formula of the ion is given as:
Mg²⁺
We know this because the number of protons an atom contains can be used to identify an element.
Element with atomic number or proton number of 12 is magnesium .
when it loses two electrons, it becomes isoelectronic with Neon and it is now stable.
How many formula units of magnesium hydroxide are found in 10.88 moles?
Answer:
10.88 moles of magnesium hydroxide contain 65.52 ×10²³formula units
Explanation:
Given data:
Number of formula units of magnesium hydroxide = ?
Number of moles = 10.88 mol
Solution:
The given problem will be solve by using Avogadro number.
The number 6.022×10²³ is called Avogadro number.
1 mole contain 6.022×10²³ formula units.
10.88 mol × 6.022×10²³formula units /1 mol
65.52 ×10²³formula units
Thus, 10.88 moles of magnesium hydroxide contain 65.52 ×10²³formula units .
The minimum amount of energy that particles must have in order to react is known as the... what?
1. What are three examples of Properties of Matter?
2. How are liquid, solid, and gas particles different?
Answer:
1. liquid, gas, and solid
2. Liquid, solid, and gas particles are different by volume, and shapes they take in containers. Solid is tightly packed, liquid takes the shape of anything, and gas has neither volume or shape
Explanation:
Hope this helps!
Which option correctly matches the chemical formula of a compound with its
name?
A. N2O5, nitrogen oxide
B. N204, nitrogen oxide
C. N205, dinitrogen pentoxide
D. N204, dinitrogen pentoxide
SUBT
Answer:
N205 dinitrogen pentoxide
Explanation:
Trust me miss gorl
Answer:
the answer above is correct.....
Explanation:
How many molecules are in 35.9 moles of neon gas
Answer:
5455.859420000001 Neon Gas
Explanation:
Which pair of molecules have the same empirical formula?
Answer
A H2O and H604
B NaCrO4 and Na2Cr207
C K408 and K204
DC2H302 and C6H1206
If the boiling point of HCl is -85 (C) and the boiling point of Hl is -36 (C),
what would be a good estimate for the boiling point of HBr? *
What is plate tectonics
Answer:
Plate tectonics is a scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates of Earth's lithosphere, since tectonic processes began on Earth between 3.3 and 3.5 billion years ago.
a theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates which move slowly over the underlying mantle
explain what happens differently to an electron to emit different colors of light