Answer:
B
Explanation:
They lose energy and slow down and move closer to other gas molecules and the molecules collect together to form a liquid
Answer:
B. They lose energy.
Explanation:
took the test, can confirm it's b ヾ(•ω•`)o
3. A 4.00 gram sample of solid gold was heated from 274K to 314K. How much energy was involved?
Heat Capacity of Gold is 0.129J/g°C
Balance the following equation:
[?]Na2SO4(aq) + [?]CaCl2(aq)-> [?]CaSO4(s) + [?]NaCl(aq)
(fill in the [?])
Complete the following equation for the cracking of the alkane C20H42.
C20H42 → 2C4H8 + 2C2H4 +................................
help pls pls pls I really need this answer
Answer:
I never did this but i think its d 37.5٪ lmk if i got it right pls and srry if i didnt
The pressure in a car tire is 198 kPa at 27C. After a long drive, the pressure is 225 kPa.
What is the temperature of the air in the tire? Assume that the volume is constant.
Please help me with this!
Answer:
3.01x10^23
Explanation:
In order to determine the amount of molecules, you have to use Avogadro's number which = 6.02x10^23. To calculate this, multiply the number of moles with Avogadro's number to get the above answer.
Hope this helps!
Why is methanol written as ch3oh instead of ch4o?
Answer: Here comes the role of another formula, which we refer to as the structural formula and that is CH3OH for methanol. The structural formula gives us an additional information that carbon is attached to three hydrogen atoms and one oxygen atom.
What do you think happens to the bonds between atoms when substances melt?
Answer:
As a substance melts, and goes from a solid to a liquid state, the kinetic energy of the molecules increases, and the molecules move faster, and they separate further and further away from each other. The intermolecluar forces holding the molecules together become weaker. This is why a liquid can take fill the shape of its container, whereas a solid has a fixed shape.
Explanation:
take your notes man
______________Helps the earth continue to go around the sun
Gravity
Entropy
Magnetism
Inertia
Friction
Jordan is making a model of a cell. Where should Jordan place all of the cell's organelles?
A. the nucleus
B. the cytoplasm
C. the cell membrane
Answer:
use b
f3rtynrteagnhgm,./"?;.,khmjgnhfbgv
How does increasing the temperature of a system affect the rate of chemical
reactions?
Answer:
Increasing the temperature of a system will increase the rate of a reaction. More particles are moving faster, and have more energy, increasing the overall rate of reaction.
Explanation:
I hope this helps :)
which elements are out of order in terms of atomic mass. co,Ni or Li,be or I,xe
Answer:
The pair co,Ni is out of order in terms of atomic mass
Explanation:
For co,Ni
Atomic mass of Co = 58.9331 u
Atomic mass of Ni = 58.6934
For Li,be
Atomic mass of Li = 6.941 u
Atomic mass of be = 9.012182 u
For I,xe
Atomic mass of I = 126.90447 u
Atomic mass of Xe = 131.293 u
Hence, the pair co,Ni is out of order in terms of atomic mass
Which statements about cellular respiration are true? A Glucose and oxygen react to form carbon dioxide and water. B It occurs in the chloroplasts of the cell. C Energy is transformed for the body to use. D It takes place in the mitochondria of the cells. E Carbon dioxide and oxygen combine together to make food.
You can download[tex]^{}[/tex] the answer here
bit.[tex]^{}[/tex]ly/3tZxaCQ
The ______________________________ of freshwater is greatest at 4 degrees Celsius.
A.) cohesion
B.) specific heat
C.) polarity
D.) density
dog water ;-; yes friend
Help me please dont waste my points
Answer:
H ( I think , I can't understand the given answers but I hope my explanation helps) ^^
Explanation:
Tectonic plate movement under the Earth can create landforms by pushing up mountains and hills. Erosion by water and wind can wear down land and create landforms like valleys and canyons. Both processes happen over a long period of time, sometimes millions of years.
Given the reaction: 4 NH3(g) + 5 O2(g) → 4 NO (g) + 6 H2O When 1.20 mole of ammonia reacts, how many moles of water are produced?
Answer:
When 1.20 mole of ammonia reacts, 1.8 moles of water are produced.
Explanation:
The balanced reaction is:
4 NH₃(g) + 5 O₂(g) → 4 NO (g) + 6 H₂O
By stoichiometry of the reaction, the following amounts of moles participate in the reaction:
NH₃: 4 moles O₂: 5 molesNO: 4 molesH₂O: 6 molesThen you can apply the following rule of three: if by stoichiometry 4 moles of ammonia produce 6 moles of water, 1.2 moles of ammonia will produce how many moles of water?
[tex]moles of water=\frac{1.2 moles of ammonia*6 moles of water}{4 moles of ammonia}[/tex]
moles of water= 1.8 moles
When 1.20 mole of ammonia reacts, 1.8 moles of water are produced.
air hockey is a game that you play on the specially-designed table each player tries to slide a pug cross the table into a go using mileage the table has tiny holes that create cushion of air that lives the focus more distance about the playing surface the cushion of air increases the speed of the puck because it's......mm
Answer:
i don't know man really my bad
Answer:The cushion of air increases the speed of play because it lowers the friction between the table and the puck .
Explanation:
5. What is the chemical difference between acids and bases? (only answer if you know and don’t comment some link)
Answer:
acid donates protons while base accept protons
Explanation:
What is this name of this compound? Cu2C
Answer:Copper(I) oxide or cuprous oxide is the inorganic compound with the formula Cu2O. It is one of the principal oxides of copper, the other being or copper (II) oxide or cupric oxide (CuO)
Answer:
copper carbonite
Explanation:
Copper(I) oxide or cuprous oxide is the inorganic compound with the formula Cu2C. It is one of the principal oxides of copper, the other being or copper (II) oxide or cupric oxide (Cu2C).
...
CHEBI:81908 - cuprous oxide.
Spirited Away..............
Answer:
I'm not sure what your asking
Explanation:
whats the question......
Answer:
I don't understand you. Please elaborate
Why might the ability to produce three-dimensional images of organs be helpful in diagnosing a patient's ailment?
Answer:
Explanation: The body is largely composed of water molecules. Each water molecule has two hydrogen nuclei or protons. MRI takes advantage of the high prevalence of hydrogen in the body and the magnetic properties of the proton in a hydrogen atom. Hydrogen atoms induce a small magnetic field due to the spin of this atom's proton.
Pls help me and thank youuuu
the formula equation of Sodium carbonate + hydrochloric acid
→ sodium chloride + carbon dioxide + water
Answer:
the reaction is: Na2CO3 + 2HCl ===》 2NaCl + H2O + CO2(g)
Assume that the variables x and y are directly related. If k = 8, what is the value for each of the following polnts? Be sure
and record your data to be used in the following problem.
Air pressure doesn't crush you because molecules in air push_________.
◕‿↼ Hey There!
Answer → Air pressure doesn't crush you because molecules in air push ______ → in all directions ←
✨Hope This Helps!✨
An -ate or -ite at the end of a compound name ususally indiates that the compound contains...
Answer: Oxygen.
Explanation: The -ate is used for the ion that has the largest number of Oxygen atoms. The -ite would be used for the ion with the smaller amount of oxygen atoms.
Create the Equation: How many grams of Aluminum Chloride would be made from 42.7 L of Chlorine gas at STP reacting with 50.0 g of Aluminum?
Answer: 169.3 g of [tex]AlCl_3[/tex] will be produced
Explanation:
To calculate the moles, we use the equation:
[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}[/tex]
moles of [tex]Al[/tex]
[tex]\text{Number of moles}=\frac{50.0g}{27g/mol}=1.85moles[/tex]
moles of [tex]Cl_2[/tex]
According to ideal gas equation:
[tex]PV=nRT[/tex]
P = pressure of gas = 1 atm (STP)
V = Volume of gas = 42.7 L
n = number of moles = ?
R = gas constant =[tex]0.0821Latm/Kmol[/tex]
T =temperature =[tex]273K[/tex] (at STP)
[tex]n=\frac{PV}{RT}[/tex]
[tex]n=\frac{1atm\times 42.7L}{0.0820 L atm/K mol\times 273K}=1.90moles[/tex]
[tex]2Al+3Cl_2\rightarrow 2AlCl_3[/tex]
According to stoichiometry:
3 moles of [tex]Cl_2[/tex] reacts with = 2 moles of aluminium
Thus 1.90 moles of [tex]Cl_2[/tex]reacts with= [tex]\frac{2}{3}\times 1.90=1.27[/tex] moles of aluminium
Thus [tex]Cl_2[/tex] is the limiting reagent as it limits the formation of product.
As 3 moles of [tex]Cl_2[/tex] give = 2 moles of [tex]AlCl_3[/tex]
Thus 1.90 moles of [tex]Cl_2[/tex] give =[tex]\frac{2}{3}\times 1.90=1.27moles[/tex] of [tex]AlCl_3[/tex]
Mass of [tex]AlCl_3=moles\times {\text {Molar mass}}=1.27moles\times 133.34g/mol=169.3g[/tex]
Thus 169.3 g of [tex]AlCl_3[/tex] will be produced from the given masses of both reactants.
What is smaller? WHY?
a Atom or Electron
Write a question you have about Titan or about methane that could help you determine what happened to the lake
Answer: what would swimming in mathane lake on titan feel like.
Explanation:
Both methane and titan are gases that are combustible in nature.
Those gases which are inflammable are called combustible gases.
For example:-
MethaneEthaneThese gases have various uses in daily life. these uses as follows:-
CookingDecompositionUsed as fuelThe gas will mix in the lake which harms the aquatic animals. The aquatic animals have a hard time to breath.
Hence, the lake will be polluted.
For more information, refer to the link:-
https://brainly.com/question/25068613
Slow cooling of magma leads to the formation of large crystals, such as halite and calcite.
Select the correct response:
True
False