Answer:
A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure. As such, it is one of the four fundamental states of matter (the others being solid, gas, and plasma), and is the only state with a definite volume but no fixed shape.
Answer:
Liquid takes the shape of any container it is put in. The atoms that make up a liquid are spread out, and move fast, but not as fast as gas. Liquid is the stage between solid and gas, concerning the water stages. Usually, a liquid can turn into a solid or gas, if it's temperature or environment is changed.
Is this good?
Do the molecules in cold things move fast or slow?
Answer:
slow
Explanation:
according to kinetic molecular theory,as the temperature decreases the kinetic energy of molecules decreases
t∝k.eWill the properties of nitrogen be more similar to the properties of neon or the properties of phosphorous?
O Phosphorous
Neon
O No answer text provided.
No answer text provided.
If the pressure of a gas is quadrupled (4x), how
will the volume of the gas change? You answer
must be specific. It must include a number.
Answer:
Yes. The volume would be 1/4 of the initial volume.
Explanation:
At constant temperature, the pressure of a gas is inversely proportional to the volume of the gas. Hence;
P1V1 = P2V2
where P1 is the initial pressure, V1 is the initial volume, P2 is the final pressure, and V2 is the final volume.
If the pressure of a gas is quadrupled;
P2 = 4P1, the equation becomes
P1V1 = 4P1 x V2
Making V2 the subject:
V2 = P1V1/4P1
V2 = V1/4
This means that the volume would change by being reduced to 1/4 of the initial volume.
Producers in the Nitrogen, carbon and oxygen cycle are typically____
am not sure but in time i will look for the answer
WILL MARK BRAINLIEST
What type of machine is a seesaw?
complex machine
mechanical machine
compound machine
simple machine
Answer:
simple machine
Explanation:
A seesaw is a simple machine, which just sways back and forth.
A complex machine is like a roller-coaster, or any other carnival game.
A mechanical machine has many screws, and is run by a human with a remote or something else.
The answer to the question has to be simple machine. Hope this helps!
Answer:
simple machine
Explanation: I took the test on k12
Elements with atomic numbers 7 and 83 have how many valence electrons? *
5 and 5 valence electrons
4 and 8 valence electrons
2 and 2 valence electrons
7 and 83 valence electrons
Explanation:
element with atomic numbers 7 and 83 have 5 and 5 valence electrons
Delta College Public Radio broadcasts on a frequency of 90.1 megahertz (MHz). (Mega = million). What is the wavelength of the Delta College radio waves?
Answer:
3.23m
Explanation:
Using the formula, λ = v/f, the wavelength can be calculated
In λ = v/f
λ = wavelength (m)
v = speed of light (3 × 10^8m/s)
f = frequency (Hz)
Since frequency (f) is 90.1 megahertz (MHz) i.e. 90.1 × 10^6 Hz
9.01 × 10^7Hz
λ = v/f
λ = 3 × 10^8 ÷ 9.01 × 10^7
λ = 0.3229 × 10^(8-7)
λ = 0.3229 × 10¹
λ = 3.23m
In the reaction of nitrogen with hydrogen to produce ammonia, NH3, how many moles of ammonia would be produced from 1.0 mol of hydrogen and excess nitrogen?
N2 + 3 H2 --> 2 NH3
0.33 mol
0.67 mol
2.0 mol
1.3 mol
Answer:
0.67 mol
Explanation:
Given data:
Number of moles of ammonia produced = ?
Number of moles of hydrogen = 1.0 mol
Amount of nitrogen = excess
Solution:
Chemical equation:
N₂ + 3H₂ → 2NH₃
Now we will compare the moles of ammonia with hydrogen.
H₂ : NH₃
3 : 2
1.0 : 2/3×1.0 = 0.67
Thus, from 1.0 mole of hydrogen 0.67 moles of ammonia will produced.
A group of similar organisms that can mate with each other and produce
fertile offspring. *
Natural Selection
Species
Fossil
Evolution
Answer:
Fertile Offspring.......
:)
Explanation:
✌❤❤
A 2.89 g sample of sulfur reacts with 5.72 g of copper to form a black compound.
What is the percentage composition of the compound?
Answer:
50.5% Sulfur and 49.5%copper
Explanation:
2.89g/5.72g= 0.505*100=50.5%
100% - 50.5% = 49.5%
PLEASE HELP!!!!!
What role do chemical processes play in the operation of the flashlight?
What two gases are produced during the electrolysis of water?
Answer:
hydrogen and oxygen.
Explanation:
Explain how the forces involved in a car crash could lead to multiple cars coming to a complete stop. Use information from the article in order to answer this question. You should be answering in at least 2 complete sentences.
Answer:
Newton's First Law...
Explanation:
The only force that acts on the car is the sudden deceleration from v to 0 velocity in a brief period of time, due to the collision with another object. However, when viewing the total system, the collision in the situation with two cars releases twice as much energy as the collision with a wall
How does heat energy from the sun reach Earth?
A. Conduction
B. Radiation
C. convection
d. other
Pls help me it detects if it’s right or wrong
numerical Through the two ends of glass-tube of lenght 2 meters, hydrogen chloride and ammonia gases are allowed to enter.At what distance ammonium chloride will first appear?
Answer:
81cm is the answer.
Explanation:
Let X be the length from the HCl end, and therefore, (2-x) from the other end.
For X length, rate of diffusion is :
dx/dt=P A/(Square root of 36.5T
d(2−x)/dt=PA/(square root of 17 T
Dividing both we get;
X/(2−x)= square root of 36.5/17
X=2/2.466=0.81 or81cm
if 2.2 pounds is equal to a Kilogram. Convert 102 Kg into pounds show
all steps involved in your calculation. Show all steps involved in this calculation
Answer:
224.4pounds
Explanation:
Given;
2.2pounds = 1 kg
Convert;
102 kg into pounds
Solution:
From the conversion factor, we see that a kg is more than pound when compared. This will give us an idea of our answer;
1kg = 2.2 pounds
the amount of pounds of the unknown = y
if
1kg = 2.2 pounds
102 kg = y pounds
Cross multiply;
y = 102 x 2.2 = 224.4pounds
4. Arrange the following from the smallest number of representative particles
to the largest:
a. 1.25 x 1025 atoms Zn
b. 3.56 mol Fe
C. 6.78 x 1022 molecules glucose (C6H1206)
The correct sequence for the number of representative particles in the increasing order has been C < B < A.
The representative particles in a compound have been the smallest unit that has been held together to form the compound. The representative particle can be an atom or a molecule.
The number of representative unit in the following samples has been:
[tex]1.25\;\times\;10^2^5\;\rm Zn\;atoms[/tex]The atoms have been the representative particle. The number has been given as, [tex]1.25\;\times\;10^2^5[/tex].
3.56 mol FeThe representative unit for Fe has been atoms. According to the Avogadro law, one mole of sample has been constituted of [tex]6.023\;\times\;10^2^3[/tex] atoms. The number of atoms in 3.56 mol Fe has been:
[tex]\rm 1\;mol\;Fe=6.023\;\times\;10^2^3\;atoms\\3.56\;mol\;Fe=6.023\;\times\;10^2^3\;\times\;3.56\;atoms\\3.56\;mol\;Fe=21.44188\;\times\;10^2^3\;atoms[/tex]
The representative particles for 3.56 mol Fe are [tex]21.44188\;\times\;10^2^3[/tex].
[tex]\rm 6.78\;\times\;10^2^2\;molecules\;C_6H_1_2O_6[/tex]The molecule has been the representative unit for the complex compounds. The number of representative unit has been [tex]6.78\;\times\;10^2^2[/tex].
The arrangement of the representative unit in the increasing order has been:
[tex]\rm 6.78\;\times\;10^2^2\;molecules\;C_6H_1_2O_6\;<\;21.44188\;\times\;10^2^3\;atoms\;Fe\;<\;1.25;\times\;10^2^5\;atoms\;Zn[/tex]
Thus, the correct sequence for the number of representative particles in the increasing order has been C < B < A.
For more information about representative particle, refer to the link:
https://brainly.com/question/2293007
The partial Lewis structure that follows is for a hydrocar-bon molecule. In the full Lewis structure, each carbon atom satisfies the octet rule, and there are no unshared elec-tron pairs in the molecule. The carbon—carbon bonds are labeled 1, 2, and 3. (a) How many hydrogen at-oms are in the molecule? (b) Rank the carbon–carbon bonds in order of increasing bond length. (c) Which carbon—carbon bond is the strongest one? [Sections 8.3 and 8.8]A C is double bonded (bond 1) right to C, which is single bonded (bond 2) right to C. That C is triple bonded (bond 3) right to C.
Answer:
See explanation
Explanation:
a) considering the structure of the compound, it has 5 hydrogen atoms. Three are attached to C-1, one is attached to C-2 and 1 is attached to C-4.
b) (bond 2)> (bond 1) >(bond 3). As we move from single to triple bond, the magnitude of s character of the bond increases hence the bonds become shorter. Single bonds are longer than double bonds and double bonds are longer than triple bonds.
c) (bond 3) the triple bond is the shortest and strongest of all the bonds. The shorter a bond, the stronger it is.
Which compound forms a powerful acid and also contains a halogen?
H2S
HBr
Li2O
LiBr
Answer:
HBr is the strongest and its bond is what which makes it the strongest acid.
Explanation:
This acid is dangerous and highly poisonous than other acids. It can disunite instantly. And later then it forms the suspension.
and LiBr is not merely an acid and henceand HBr are the acids, amongst which HBr forms the strong acid component.
The strongest nature is due to the formation of hydronium ions.
The Hydrogen sulphide acid does not release hydronium ions on suspension.
Explanation:
yww
The compound HBr forms a powerful acid that contains a halogen as Bromine (Br). Thus, the correct option is B.
What are Halogens?Halogens may be defined as all sorts of chemical elements that construct a salt when it reacts with metal. There are mainly five halogens present in the periodic table of chemical elements: fluorine, chlorine, bromine, iodine, and astatine.
Option A and option C do not contain any forms of halogen. Hence, they are eliminated.
While LiBr is not able to form any sort of acids during reactions. Due to the presence of a partial positive charge on hydrogen and a partial negative charge on Bromine, HBr forms a strong bond and that makes it as a strong acid as well.
Therefore, the compound HBr forms a powerful acid that contains a halogen as Bromine (Br). Thus, the correct option is B.
To learn more about Halogens, refer to the link:
https://brainly.com/question/364367
#SPJ6
WILL MARK BRAINLIEST-
what is the lewis dot structure of CH2OH and N2O4
Please help me!
Physical change involves a change in composition.
True or False
Answer:
FALSE!!
Explanation:
Physical changes occur when objects or substances undergo a change that does NOT change their chemical composition. This contrasts with the concept of chemical change in which the composition of a substance changes or one or more substances combines or break up to form new substances.
Direction is not important when describing an object's motion.
O True
False
N2 + 3H2 Right arrow. 2NH3 What is the percent yield of NH3 if the reaction of 26.3 g of H2 produces 79.0 g of NH3? Use Percent yield equals StartFraction actual yield over theoretical yield EndFraction times 100..
Answer:
53.4%
Explanation:
N₂ + 3H₂ → 2NH₃
Given that:
26.3 g of H₂ react with N₂ to produce 79.0 g of NH₃
Then:
The number of moles of H₂ = 26.3g of H₂ * (1 mol of H₂/ 2.02g of H₂)
= 13.05 mol of H₂
The number of moles of NH₃ = 13.05 mol of H₂ * ( 2mol of NH₃/ 3 mol of H₂)
= 8.697 mol of NH₃
The mass of NH₃ = 8.697 mol of NH₃ *( 17.04g of NH₃/ 1 mol of NH₃) = 148.1 g of NH₃
The percent yield = actual yield/ theoretical yield * 100%
The percent yield = ( 79.0 g/ 148.1 g )* 100%
The percent yield ≅ 53.4 %
Answer:
53.4
Explanation:
1. The behavior that occurs when a wave bends as it changes media is known as
a) absorption
b) refraction.
c) reflection
d) transmission
Answer:
b refraction
Explanation:
i saw on nasa's website lol
What is the mass number of an atom with 8 protons 10 neutrons, and 8
electrons
Can you guys help me out??
I2KI+ Pb(NO3)2---- PbI2+ 2KNO3 is what type of reaction?
* Decomposition
* Replacement
* Synthesis
the mass of a large car is 100kg how much force would be required to accelerate the car at a rate of 3m/s2?
Answer:
The answer is 300 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 100 × 3
We have the final answer as
300 NHope this helps you
it is sunny today is that whether or climate this isn't chemistry but...
Answer:
weather
Explanation:
A stretched rubber band is an example of:
A. Kinetic energy
B. Potential energy
C. Gravitational energy
D. Light energy
Answer:
Potential Energy
Explanation:
Not sure how to explain it but C and D could be crossed off as answers, kinetic energy would be if it was released (?)
sorry if im wrong
