Answer:
d = 0.98 g/L
Explanation:
Given data:
Density of acetylene = ?
Pressure = 0.910 atm
Temperature = 20°C (20+273 = 293 K)
Solution:
Formula:
PM = dRT
R = general gas constant = 0.0821 atm.L/mol.K
M = molecular mass = 26.04 g/mol
0.910 atm × 26.04 g/mol = d × 0.0821 atm.L/mol.K×293 K
23.7 atm.g/mol = d × 24.1 atm.L/mol
d = 23.7 atm.g/mol / 24.1 atm.L/mol
d = 0.98 g/L
ik i already asked this but i need diff point of views
I need advice...
ive been skipping out on having my vitamins and pills for awhile without telling my parents. i just dont like taking pills and vitamins so my habit is to throw them away. I read that this can really hurt you and idk what to do. Will taking them again save me?
Answer:
Is it prescribe to you?If so than yes if not then no need to
Explanation:
What is the energy of a wave having a frequency of 9.83 x 1013 Hz?
Answer:
9.95779 Hz
Explanation:
Which wave has the higher frequency?
A. Bottom
B. Top
A(n)
______ Is a group of organs that work together to perform a com
Answer:
an organ system Is a group of organs that work together to perform a com
Explanation:
that is the answer organ system
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Calculate the energy of the lasers in a Blu-ray player, which emit at a wavelength of 4.05x10−7 m.
Answer:
4.907 × 10^-19 J
Explanation:
The energy of the lasers in a Blu-ray player can be calculated by using;
E = hf
Where;
E = Energy of laser (J)
h = Planck's constant (6.626 × 10^-34 J/s)
f = frequency (Hz)
However, the frequency must be known first in order to calculate the energy. The frequency can be calculated using the formula:
f = v/λ
Where:
λ = wavelength (4.05x10−7 m.)
v = speed of light (3 × 10^8m/s)
f = frequency (Hz)
f = 3 × 10^8 ÷ 4.05 x 10^−7
f = 0.7407 × 10^(8 + 7)
f = 0.7407 × 10^15
f = 7.407 × 10^14 Hz
Using E = hf
E = 6.626 × 10^-34 × 7.407 × 10^14
E = 49.07 × 10^(-34 + 14)
E = 49.07 × 10^-20
E = 4.907 × 10^-19 J
which type of rock is most likely to form because high heat and pressure?
Answer:
metamorphic
Explanation:
Temperature and kinetic energy have a relationship.
Answer:
[tex]\boxed {\boxed {\sf Temperature=Average \ kinetic \ energy}}[/tex]
Explanation:
Temperature is also known as the average kinetic energy in a substance.
If there is an absence of heat in a substance, the particles move slower and the kinetic energy decreases. The temperature will be lower, because there is less kinetic energy.
If heat is present or applied, the particles move more, so kinetic energy increases. The temperature will be higher, since there is more kinetic energy.
So, the relationship is: temperature is the measure of average kinetic energy.
Answer:
DIRECT
Explanation:
Chemical equations need to be _________
Long
Periodic
Balanced
Advanced
Answer:
advanced
Explanation:
Answer:
Balanced
Explanation:
..............
Global Positioning System signals can tell you
Answer:
GPS use satellites and receivers to determine location. GPS can be used to find exact location, and relative location, so how far away you are from somewhere else. It can also give coordinates and directions.
Which evidence suggests that the materials in the asthenosphere are near their melting point? Choose the correct answer.
The asthenosphere is made of lighter elements.
The temperature of core samples taken from the asthenosphere is near 500 K.
The velocity of seismic waves increases suddenly when they enter the asthenosphere.
The velocity of seismic waves decreases suddenly when they enter the asthenosphere.
Answer: The asthenosphere is made of lighter elements.
Explanation:
The asthenosphere has obtained its name from Greek word called asthenis, which mean weak. The strength of asthenosphere is lower than that of overlying lithosphere. If the temperature of lithosphere raises high enough then asthenosphere will melt. This layer is ductile and deforms very easily.
Describe the octet rule.
Answer:
The octet rule is a chemical rule of thumb that reflects the observation that main group elements tend to bond in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble gas.
Explanation:
3.00 Liters of gas are stored at standard temperature and pressure. If the volume of the gas is increased to 4.00 L at a constant temperature what is the new pressure of the gas
The new pressure of the gas : 0.75 atm
Further explanationBoyle's Law
At a constant temperature, the gas volume is inversely proportional to the pressure applied
[tex]\rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}[/tex]
P₁=1 atm ⇒ standart temperature and pressure (STP)
V₁=3 L
V₂=4 L
[tex]\tt P_2=\dfrac{P_1.V_1}{V_2}\\\\P_2=\dfrac{1\times 3}{4}\\\\P_2=0.75~atm[/tex]
In the reaction below, how would adding more of reactant A affect the equilibrium of the system? (2 points)
A + B ⇄ C + D
a
Shift it to the right toward the products.
b
Shift it to the left toward the reactants.
c
Equally create more products and reactants.
d
It would have no effect.
Answer:
a . Shift it to the right toward the products.
Explanation:
In the reaction, if more of the reactant A is added to the system, the reaction will shift towards the products.
If a system at equilibrium is disturbed by changing the concentration of one of the substances, all the concentration will change until a new equilibrium point is reached. If we add more reactants, the concentration is increased and the reaction shifts to the right so as to maintain the constancy of the equilibrium constant.Answer: a . Shift it to the right toward the products.
Explanation:
8.In a solution, this is what you have the least of.
(1 Point)
Solvent
Solute
Solubility
Suspension
Answer:
Solute
Explanation:
A solution is made up of combination of solute and solvent.
The solute is the solid dissolved in a solvent.
Solutions are homogeneous mixtures of solutes and solvents.
In a solution the solutes are evenly distributed in the solvent. The solute is the substance dissolved to make the solution. It is usually present in smaller amount than the solvent. The solvent is the dispersing medium.I NEED THIS ASAP!!
How many moles of chlorine gas are contained in 9.02 x 1023 molecules?
Which of the following is NOT
an example of an atom?
A. A water molecule
B. The smallest part of oxygen
C. The smallest part of helium
Answer:
The answer is neither
Explanation:
All of the following things all have atoms in them therefor,its neither.
Answer:
A. a water molecule
Explanation:
It’s for Acellus
Explain why naturally occurring minerals in rocks often have a visible crystalline structure.
Plz help bc this s due at exactly 3:30pm
Answer:
Is it talking about the differences about them or the ways they are the same
Explanation:
HOW MANY MOLES ARE IN 2.6 X 1024 ATOMS OF SILICON?
Answer:
Let x moles of silicon contains 2.8x10^24 atoms. 6.02x10^23 atoms are present in 1 mole of Si. Therefore 2.80x10^24 atoms are present in = 2.8x10^24/6.02x10^23 = 4.65 moles of Si.
Explanation:
Which of these equalities is not correct?
a. 100 cg = 18
c. 1 cm3 = 1 mL
b. 1000 mm = 1 m
d. 10 kg = 1g
Answer:
a. 100 cg = 18
is wrong
Explanation:
Marcy creates a model that compares elements and compounds. Her model is shown.
Which statement can Marcy support with her model?
An element is highly reactive, and a compound is stable.
An element can exist in any state, and a compound can only be liquid.
An element contains multiple substances, and a compound contains only one pure substance.
An element is made of a single type of atom, and a compound is made of two or more atom types.
Answer:
Explanation:
the asnwer is acceleratiin
For visible light, explain how wavelength and energy vary for the different colors. Provide the trends in wavelength for the spectrum of light (purple to blue to green to yellow to orange to red). How is this different for energy?
Answer:
See explanation
Explanation:
If you look closely at the image attached, you will discover that the order of increasing wavelength in the visible spectrum is;
violet < indigo< blue < green < yellow < orange < red
On the order hand, the energy of the photons increases in the order;
Red < orange < yellow < green < blue < indigo < violet
Since energy follows a trend opposite to that of wavelength, we can see that the greater the wavelength of light, the lower the energy of photon corresponding to that particular colour.
The diagram shows a certain kind of cell with all of its major parts labeled.
Which statement is supported by the diagram?
The cell must be eukaryotic because it has a cell membrane and a cell wall.
The cell must be prokaryotic because it has a cell membrane and a cell wall.
The cell is eukaryotic because it does not have any membrane-bound organelles.
The cell is prokaryotic because it does not have any membrane-bound organelles.
Answer:
I think it's the last one
D. The cell is prokaryotic because it does not have any membrane-bound organelles.
Explanation:
The difference between eukaryotic and prokaryotic cells are that the eukaryotic cells have a nucleus and they have membrane-bound organelles, and prokaryotic cells don't.
Hope this Helps!
15. Why do many substances dissolve easily in water?
Answer:
Water is called the "universal solvent" because it is capable of dissolving more substances than any other liquid. ... Water molecules have a polar arrangement of oxygen and hydrogen atoms—one side (hydrogen) has a positive electrical charge and the other side (oxygen) had a negative charge
Explanation:
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[tex]\huge\mathfrak {♚Answer:-}[/tex]
Water is called the "universal solvent" because it is capable of dissolving more substances than any other liquid. Water molecules have a polar arrangement of oxygen and hydrogen atoms—one side (hydrogen) has a positive electrical charge and the other side (oxygen) had a negative charge
Elements in Group 18 form which ion?
A. 1
B. +1
C. -1
D. 0
How much energy is needed to turn 23 g of water completely into steam if it starts at a temperature of 8.0oC?
Answer:
69% energy
Explanation:
What % of the earth's freshwater is found in glaciers and ice packs? 0.03% 0.03% 3% 3% 24.9% 24.9% 75%
Answer:
En verdad solo el 0,025% del agua de la tierra es dulce
Explanation:
A student found that 3 grams of ammonia gas formed 3 grams of solid ammonia when the
temperature was lowered enough. Why did the solid ammonia and the ammonia gas have the same
mass?
Answer:
a gas can have the same weight as a solid
Explanation:
5. The diagram helow represents a particle traveling
through an electric field.
Positively
charged
plate
Particle -
+ + + + +
I
Negatively
charged
plate
Which particle remains undeflected when passing
through this electric field?
A) proton
B) electron
C) neutron
D) positron
Answer:
C) neutron
Explanation:
The particles that remains undeflected when passing through this electric field are the neutrons because they do not carry any charges on them.
Neutrons are uncharged particles. Since they do not have any charges on them, they are not affected by the electric field. Both protons and electrons are deflected by the electric field. The charges on these particles causes them to be deflected.The particle which remains undeflected when passing through this electric field is:
C) neutronThe given diagram shows the particle traveling through a field and there are positively, negatively and neutral charged ions.
As a result of this, we can see that the neutron does not get deflected as it is passing through the electric field because they do not have any charge in them and as such cannot be drawn by the electric charge.
Therefore, the correct answer is option C
Read more here:
https://brainly.com/question/19564329
What are different things you need to know before performing a experiment ?
