Answer:
The new pressure becomes one third of the initial pressure.
Explanation:
The relation between pressure and volume at constant temperature is given by :
[tex]P\propto \dfrac{1}{V}\\\\P=\dfrac{1}{V}[/tex]
Let new pressure and volume be P' and V' respectively.
V'=3V (given)
So,
[tex]P'=\dfrac{1}{V'}\\\\=\dfrac{1}{3V}\\\\=\dfrac{1}{3}\times \dfrac{1}{V}\\\\P'=\dfrac{1}{3}\times P[/tex]
Hence, new pressure becomes one third of the initial pressure.
What is the definition of threadlike filaments and tubules that crisscross the cytoplasm
Can someone help me
Answer:
Is it D?
Explanation:
Help me please !!!?!!???
Answer:
column
hope this helps
Explanation:
tell me if it's right
Answer:
Explanation:
That column of elements is commonly called the Halogens.
Which of the following relationships is true?
Ok pH - pОН = 14
Ка * К = 1x 10:14
с рка * pKb = 14
рка *рк = 1x 1014
Answer:
reeeee
Explanation:
2mnd one
What is the Kinetic Energy of a 478kg object that is moving with a speed of 15m/s?
Answer:
53,775 JExplanation:
The kinetic energy of an object can be found by using the formula
[tex]k = \frac{1}{2} m {v}^{2} \\ [/tex]
m is the mass
v is the velocity
From the question we have
[tex]k = \frac{1}{2} \times 478 \times {15}^{2} \\ = 239 \times 225[/tex]
We have the final answer as
53,775 JHope this helps you
what is the formula for potassium?
Answer:
Density 3.12 g/cm³
Melting Point 681 °C
Boiling Point 1,330 °C
Explanation:
PLS PLS PLS HELP ME I WILL MARK Y OUT BRAINLYEST JUST PLS HELP ME :((
answewr this question for 40 point
Answer:
stamen contains pollen
Explanation:
Answer:
Stamen
Explanation:
Engineers are developing a process to produce phosphorus pentachloride.
Which two criteria are the most essential when developing this process?
A. Any additional products of the process should also have
commercial uses so they can be sold to various industries.
B. The process should maximize the production of products from
reactants.
O C. The workers who operate the process should be able to run the
equipment safely.
D. All processes should involve technologies that produce the
product in a way that is similar to how it was produced before.
Answer:
Options B and C are the two criteria that are most essential
Explanation:
When trying to develop a novel process, it is important that the new process involves the use of equipment that can be operated safely by workers so as to prevent death or injury in the cause of handling this equipment. If this equipment is seen not to be safe or cannot be handled safely by workers, it can/will force workers to previous or alternative methods that require more safe equipment.
Also, the process must be able to maximize the most of the reactants, i.e the process must be able to convert a good percentage of the reactants into the desired product (phosphorus pentachloride) since that is the focus. This will also lead to reduction of byproducts produced which could be useful or otherwise (a loss).
Answer:
It is B and C.
Explanation:
I just got them right on A p E x
A space probe is launched from the surface of Earth into space. After 30 minutes, the space probe runs out of fuel and the rocket engine stops but the space probe continues moving at
a constant speed. What concept explains this phenomena?
friction
gravity
inertia
mass
Answer:
inertia
Explanation:
because an object will keep moving until something slows it down, the probe is still going because of inertia.
WIl mark brainliest
Which example has the least kinetic energy
Question 2 options:
a 1 kg rock rolling down a hillside at 1 m/s.
a 10 kg rock rolling down a hillside at 100 m/s.
a 100 kg rock rolling down a hillside at 1 m/s.
a 100 kg rock rolling down a hillside at 100 m/s.
Answer:
Solid particles have the least amount of energy, and gas particles have the greatest amount of energy. The temperature of a substance is a measure of the average kinetic energy of the particles. A change in phase may occur when the energy of the particles is changed.
Explanation:
Solid particles have the least amount of energy, and gas particles have the greatest amount of energy. The temperature of a substance is a measure of the average kinetic energy of the particles. A change in phase may occur when the energy of the particles is changed.
Answer:
BOO!
Explanation:
why is true about electron dot diagrams
Answer: The correct answer is the option: B. An element with eight valence electrons is chemically unstable.
Explanation:
Hello! Let's solve this!
We will analyze each of the options:
A. The group number of the element provides a clue to the number of valence electrons: it is correct, since it provides the number of valence electrons.
B. An element with eight valence electrons is chemically unstable: this is not correct, since elements with eight electrons in the valence shell cannot react because they already have the last complete shell. Therefore, they are chemically stable.
C. The points must be placed one at a time on each side of the chemical symbol: it is correct, because that is the way to make the point diagram.
D. An atom is chemically stable if all the points are paired: this is correct since this verifies that the point diagram has been done well.
We conclude that the correct answer is the option: B. An element with eight valence electrons is chemically unstable.
Hope this helps..... Stay safe and have a Merry Christmas!!!!!!!!! :D
what is the term used to describe a pattern of stars in the night sky?
Answer:
The term used to describe a pattern of stars in the night sky is constellations, but to be more accurately, a group of stars that forms a pattern in the sky is called an asterism.
The reaction between nitrogen and hydrogen to produce ammonia is described by the equilibrium reaction:
3H2 + N2 = 2 NH 3 3H2
What substances are present in the reaction mixture when equilibrium has been obtained.
Answer:
Explanation:
The formation of ammonia that occurred by the reaction of nitrogen and ammonia is expressed as:
[tex]3H_{2(g)} + N_{2(g)}[/tex] ⇄ [tex]2NH_{3(g)}[/tex]
where;
The reactants are:
Hydrogen and nitrogen
The product is ammonia.
For the reaction, the equilibrium constant can be expressed as:
[tex]K = \dfrac{[product]}{[reactants]}[/tex]
[tex]K = \dfrac{[NH_3]^2}{[N_2]^3[H_2]^3}[/tex]
From the equilibrium constant conditions, the formation of ammonia and its decomposition due to its reversible reaction back to hydrogen and nitrogen are equal. It implies that the rate of the forward reaction is also equal to that of the backward reaction.
Thus, during when equilibrium is obtained;
Hydrogen, Nitrogen, and Ammonia are present.
An ion of an element can have the same ________ as another element.
Answer:
Number of electrons.
Explanation:
I hope this helps.
An ion is said to be the molecule or the atom that has the presence of a net electrical charge over them. An ion can have the same protons as the other elemental atom. Thus, option A is correct.
What is an ion?An ion is defined by the atom or the molecule with an electrical charge of positive and negative on them due to the gain or the loss of the electron in their orbits for the bond formations and stability.
The ions of the atom have the same number of protons in their nucleus but the number of the electrons varies as they looses and gain electron to acquire the positive and the negative charge over them.
The presence of the extra or less electron in the orbit or the shell of the atom makes them reactive and allows the electrostatic attraction between them for the bond formation.
Therefore, in option A. the protons are the same in an ion.
Learn more about ions here:
https://brainly.com/question/3110170
#SPJ2
Your question is incomplete, but most probably your full question was,
An ion of an element can have the same as another element.
A. number of protons
B. None of these
C. electron configuration
D. atomic mass
Elements bond when they share or transfer their outer shell electrons which are called valence electrons
True
False
Answer:
True
Explanation:
Jenny knows that the atomic number of the element potassium, K, is 19. She also
knows that the average atomic mass can be used to find out how many neutrons
are in most atoms of an element. If the average atomic mass of potassium is
39.098, how many neutrons are found in most atoms of potassium?
A. 19
B. 20
C. 39
D. 40
Answer:
c. 39
Explanation:
You round the number 39.098 to make it easier. Since you can't round it up to forty because the number after the 9 in-front of the decimal is a over i is unable to be rounded up
Question:
Type your driving question here:Why are the northern lights produced? How many light reveal the
behavior of electrons in atoms
Claim:
What is the answer to the question? (1 sentence)
Type your claim here:
I
Supporting Evidence #1:
How do you know your claim is the answer to the
question? (The facts that support the claim.)
Type your evidence here (1-2 sentences):
Supporting Evidence #2:
How do you know your claim is the answer to the question?
(The facts that support the claim.)
Type your evidence here (1-2 sentences):
Answer:
What?
Explanation:
How is energy transferred when..
Answer:
Number 1 is Conduction. Number 2 is Radiation. Number 3 is Convection. i think if thats how im supposed to word it...
Explanation:
Answer:
1. Each collision passes energy from particles moving quickly to particles moving slowly. In this way, the energy spreads throughout the pan and finally reaches the handle. This process is called conduction. Conduction is the transfer of heat that happens when particles collide with each other.
2. A fire spreads by transferring heat energy in three ways: Radiation, Convection, and Conduction. Radiation refers to the emission of energy in rays or waves. Heat moves through space as energy waves. ... This is the reason that when facing the fire, only the front is warmed.
3. The ways in which energy is dissipated depends on the system: ... for a tumble dryer, the electrical work is transferred into useful internal (thermal) energy which helps to dry clothes and energy is dissipated wastefully by sound waves which cause a rise in the internal energy store (temperature) of the surroundings.
Explanation:
Hope this is what you were looking for! Brainliest please?
What is an atom?
Hshshdgwbdhwjshdhshshsbsh
Arange the following elements, from top to bottom, in the correct order of increasing atomic radius starting with the smallest.
Te
St
Rh
S
In
Answer:
The real order is
Rb(37)
Sr (38)
In(49)
Sb (51)
Te(52)
Explanation: Good luck
Elements, from top to bottom, in the correct order of increasing atomic radius starting with the smallest is Rh ( 37 ), St( 38 ), In ( 49 ), S ( 51 ), Te ( 52 ).
What is an element ?A chemical element is a species of atoms, including the pure material made entirely of that species, that have a specific number of protons in their nuclei. Chemical elements, in contrast to chemical compounds, cannot be reduced by any chemical process into simpler molecules.
Any compound that cannot be broken down into simpler chemicals by regular chemical processes is referred to as a chemical element or element. The building blocks of which all matter is made are called elements.
Protons, neutrons, and electrons make up atoms. A compound can be created by combining two different types of atoms. A molecule is a group of atoms that can't be separated from the bigger material it is a part of while still keeping its characteristics.
Thus, Rh ( 37 ), St ( 38 ), In ( 49 ), S ( 51 ), Te ( 52 ) this is the correct order of an element increasing atomic radius starting with the smallest.
To learn more about an element, follow the link;
https://brainly.com/question/13025901
SPJ2
IMPORTANT IMPORTANT NEED TO GET OFF SOON BC ITS MY BROTHERS BIRTHDAY PLEASEEEE NEED THIS EXTREMELY BAD ❤️ FOR A BIG GRADE TOO
its d because it has to be diagnoly to the right
Answer:
I think C
happy birthday to your brother though
Which statement describes compounds?
A) Compounds are made of one type of atom.
B) Compounds cannot be represented by models.
C) Compounds are represented by chemical formulas.
D)Compounds cannot be broken down into simpler forms.
Answer:
C
Explanation:
How many moles are in 48 grams of Chlorine? ( hint remember some elements are diatomic)
Answer:
bcdhbhdbfsjbcs,kfhgbsaefg
Explanation:
srry preicsoe pntosod
Mole Conversion:Find the number of moles in 384g of cobalt.
Explanation:
jduehfjfbxu zodndifdienxieb7dnf
In the reaction A + B -> C + D, what are the products?
A. A and B
B. A, B, C, and D
C. C and D
D. A and C
Answer:
C
Explanation:
just took the test
Will Mark Brainliest!
There are several ways to model a compound. One type of model is shown.
4 C's are connected in a line by 3 black lines. The C on the left has 3 H's attached to it each by a black line. The next C has 1 H attached by a black line and 1 O attached by 2 black lines. The next C has 2 H's attached to it by 1 black line each. The last C has 2 H's attached to it by 1 black line each and 1 O attached by a single black line. That O has an H attached to it by 1 black line.
What is the chemical formula for the molecule represented by the model?
CHO
C4H9O2
C4H8O
C3H8O2
Answer:
C₄H₉O₂
Explanation:
just count the amount of atoms present in the model.
Answer:
there now u can give him/her brainliest!! :)
Explanation:
a student lists three temperature measurements 100 f , 100 c, and 100 k of the highest temps 100 k is the highest true or false
Answer:
False, it is actually 100 kelvins
Explanation:
What month and what year did Matthias Schleiden contribute to the cell theory.
Plsssssssss help
Answer:
Matthias Jacob Schleiden was a German botanist who, with Theodor Schwann, cofounded the cell theory. In 1838 Schleiden defined the cell as the basic unit of plant structure, and a year later Schwann defined the cell as the basic unit of animal structure.
Explanation:
(5.50 x 10^6) x (2.16x 10^-2)
Answer:1.188
⋅
10
5
1.188 Times 10 to the fifth power
Explanation:
