Answer:
For producing 0.55 mole of acetic acid, 0.55 mole of ethanol is required.
Explanation:
The balanced equation for this reaction is
CH3CH2OH + O2 --> CH3COOH + H2O
As we can see in this equation, the ration of number of moles of acetic acid to the number of moles of ethanal is equal to [tex]1 : 1[/tex]
Hence, in order to produce one mole of acetic acid, 1 mole of ethanol is required.
Thus, for producing 0.55 mole of acetic acid, 0.55 mole of ethanol is required.
please help
please help
find molecular formula of a compound with a molar mass of 45.0 g/mol and an empirical formula of CH3
6.The atomic mass represents the weighted average of an element’s
a.Ions
b.mass numbers
c.atomic numbers
d.isotopes
Answer:
a po
Explanation:
promise HAHAHAHHAHAHAH
Answer:
isotopes
Explanation:
trust me
Our bodies use nitrogen
Question 2 options:
directly from the air
after bacteria make N into ammonia molecules
from the plants and other animals we eat
all of the above
it's the 1 and 3 I think it's that hopefully it's right
!!! would anyone be willing to double check this :00
If 5.0 moles of O2 and 3.0 moles of N2 are placed in a 30.0 L tank at a temperature of 25° C, what will the pressure of the resulting mixture of gases be?
25° C = 298°K
P (O2) = 5.0atm
P (N2) = 3.0atm
Ptotal = 6.5atm
Answer:
you got this
Explanation:
because it is confusing
Describe the function of each of the following types of neurons.
a. Sensory neurons
b. Motor neurons
c. Interneurons
Question 6
900 mL of water is added to 100 mL of a 0.1 M solution. What is the new concentration?
0.1M
0.0001M
0.001M
0.01M
Answer:
A. is the correct point.
Explanation:
This is true because no matter how many mL of water is added, the solution only gets more height; the concentration in everything else stays the same, and water doesn't have any concentration. Very confusing, I know. Good luck!
the use of carbon black
Answer:
Compared with other colorants, carbon black has a high coloring power. Therefore. it is used as ink for printing newspapers, as ink-jet toner, and for other such uses. It is also suitable as a pigment for heat-molded plastics, car fenders, coating for electric wires, and other products.
Explanation: Hope this helps. Branliest if possible. Thx
5 human activities that cause pollution
Explanation:
1-burning fossil fuels.
Sulfur dioxide released by the burning of fossil fuels like coal, petroleum is the major cause of air pollution.
Gases emitted from vehicles including trucks, jeeps, cars, trains, aeroplanes cause an immense amount of pollution.
2-Agricultural activities
Use of insecticides, pesticides and fertilizers in agricultural activities release harmful chemicals into the air and can also cause water pollution.
3-Exhaust from factories and industries
Manufacturing industries release a large amount of carbon monoxide, hydrocarbons, organic compounds, and chemicals into the air thereby depleting the quality of air.
Petroleum refineries release hydrocarbons and various other chemicals that cause air pollution.
4-Mining operations:
Mining is a process wherein minerals below the earth are extracted.
During this process dust and chemicals are released in the air causing massive air pollution.
19.The Alkali and Alkaline Earth metals belong to which columns, respectively?
a.Column IA & IIA
b.Column VIIA & Column VIIIA
c.Column IIIA & IVA
Answer:
the alkali and the alkaline earth metals comprise the first two columns periodic table traditionally referred to as groups IA and iia. respectively (figure, 1).
Explanation:
the alkaline and alkali earth metals are a group of elements in the periodic table
Which statement about the ocean is true?
1. No evaporation or precipitation in the water cycle occurs over the ocean.
2. Most evaporation and precipitation in the water cycle occur over the ocean.
3.All evaporation and precipitation in the water cycle occur over the ocean.
4.Evaporation, but not precipitation, in the water cycle occurs over the ocean.
Answer: The answer is probably B because most of the precipitation and evaporation in the water cycle happens over the oceans. Including, about 78 percent of the precipitation and 86 percent of evaporation.
The statement about the ocean is true is most evaporation and precipitation in the water cycle occur over the ocean. Therefore, option 2 is correct.
What is water cycle ?The continual movement of water on, above, and below the Earth's surface is referred to as the water cycle, also known as the hydrologic cycle or the hydrological cycle.
The water cycle is composed mostly of four processes: evaporation, convection, precipitation, and collection. When water in rivers, lakes, or the ocean is heated by the sun and turned into vapour or steam, this process is known as evaporation. The river, lake, or ocean releases water vapor or steam into the atmosphere.
The hydrologic cycle is crucial because it determines how water gets to people, plants, and other species. In addition to supplying water for people, animals, and plants, it also transports nutrients, diseases, and sediment into and out of aquatic habitats.
Thus, option 2 is correct.
To learn more about water cycle, follow the link;
https://brainly.com/question/1151425
#SPJ2
Atomic Radius________across (left to right) a period and______down a group.
Answer: Decreases across the period and increases down the group
can someone plz help me im running out of time !!!!
Balance the chemical equation below using the smallest possible whole number
stoichiometric coefficients.
Q1= C(s)+H2(g) -> C2H6(g)
Q2= NH3(g)+O2(g)-> HCN(aq)+H2O(l)
Answer:
1. C(2)+H2(1) -> C2H6(1)
2. NH3(2)+O2(3)-> HCN(2)+H2O(3)
I am not sure about the second one.
ome fire extinguishers contain liquid carbon dioxide Suggest how carbon dioxide
Answer:
The CO2 Extinguisher Cannisters contain carbon dioxide in liquid form, and when the extinguisher is let off the liquid is released into the air neutralising the oxygen that the fire is feeding on, disabling the fires ability to spread.
what is rainwater harvesting
Answer:
It is a technique of collection and storage of rain water
A solution in which more solute particles are there called
Answer:
solute
Explanation:
solid particles are called solutes
liquid as solvents
in most of the cases
but may be different in few cases
Answer:
unsaturated solution
Explanation:
An unsaturated solution is defined as a solution In which more solute can be dissolved at the same temperature. Supersaturated: A supersaturated solution is defined as a solution in which excess solute is dissolved than required for the formation of a saturated solution.
Please help if you can't see the awnsers there
A cytosine and Adenine
B adenine and deoxyribose
C cytosine and gallium
D phosphate and ribose
A rock that falls off a cliff represents both potential and kinetic energy. Which statement best represents the energy transformation involved in this scenario? As the potential energy decreases, the kinetic energy decreases. As the potential energy decreases, the kinetic energy decreases. As the potential energy increases, the kinetic energy increases. As the potential energy increases, the kinetic energy increases. As the potential energy decreases, the kinetic energy increases. As the potential energy decreases, the kinetic energy increases. As the potential energy increases, the kinetic energy stays the same
Answer:
as the potential energy decrease the kinetic energy increases
Explanation:
at the cliff it possess maximum potential energy but as it falls it possess maximum Kinetic energy
When the rock is still stationary at a height, it possess all potential energy. As it begins to fall from the height, potential energy decreases and kinetic energy increases.
Energy transformations involve the change of energy from one form to another in accordance with the principle of energy conservation.
For a rock found at a height, all it has is potential energy. This potential energy decreases when the rock begins to fall and kinetic energy increases accordingly.
Hence, for a rock that falls off a cliff, as the potential energy increases, the kinetic energy increases.
Learn more: https://brainly.com/question/999862
MAX TEN MINUTES PLZZZZZ HURRY
Essential Question:
How does the transfer of thermal energy become minimized or maximized?
explain you hypothisith
Answer:
when it reduces heat.
Explanation:
Thermal energy is transferred to material,the motion of its particles speeds up and it's temperature differences.Insulating materials are bad conductors and so this reduces the heat loss by conduction.The material also prevents air circulating inside the cavity,therefore reducing heat loss by convection.Heat loss through the roof can be reduced by laying loft insulation.
HELP!!!
6.12 moles of Na3PO4 experimentally produced 1001g of sodium chloride according to the equation below. What is the percent yield?
2Na3PO4 + 3 CaCl2 --> Ca3(PO4)2 + 6NaCl
Answer:
155.5%
Explanation:
from the equation
2mol of Na3PO4 reacts to give 6mol of Nacl
therefore 6.12mol of Na3PO4 will give 18.36mol of Nacl
2mol Na3PO4............ 6mol of nacl
6.12mol NaPO4.......... 6×6.12mol/2mol = 18.36mol of Nacl
mass of Nacl = mol × molar mass
where molar mass of Nacl= 23+12=35g/mol
mass of Nacl= 18.36 × 35= 642.6g of Nacl
percentage yield = actual yield/ theoretical yield ×100%
percentage yield= 1001g (given)/642.6g(used) ×100 = 155.5%
Answer:
107%
Explanation
6.12 mol Na3Po4 | 6 mol NaCl | 58.44 g NaCl
______________________________________ = 1072g NaCl
| 2 mol Na3Po4 | 1 mol NaCl
1072g/1001g x 100= 107%
a force that resists motion when objects touch is what
A force that resists motion when objects touch is friction. Frictional force is the force that prevents an object from moving.
What is friction ?The term friction is defined as the force that opposes the motion of a solid object over another. There are four types of friction that are static friction, sliding friction, rolling friction, and fluid friction.
Three factors in particular determine the frictional force between two bodies: The adhesion between body surfaces, the surface roughness, and the deformation of bodies are all factors.
Frictional force is the force that prevents an object from moving. The imperfections on the two surfaces in contact are what produce friction. The type of surfaces in contact affects friction.
Thus, A force that resists motion when objects touch is friction.
To learn more about the friction, follow the link;
https://brainly.com/question/13000653
#SPJ2
Earth is a part of the galaxy known as the-
Triangulum galaxy.
Omega Centauri.
Andromeda galaxy.
Milky Way.
Answer:
its milky way galaxy..........
A cylinder of an ideal gas contains 1.2 moles of gas and occupies a volume of 5.0L. If 0.5 moles of a second gas are added to the cylinder, and the cylinder is allowed to expand until it reaches the same temperature and pressure as before, what is the final volume of gas, in liters, that occupies the cylinder?
Answer:
7.08 L
Explanation:
From the question given above, the following data were obtained:
Initial mole (n₁) = 1.2 moles
Initial volume (V₁) = 5 L
Final mole (n₂) = 1.2 + 0.5 = 1.7 moles
Final volume (V₂) =?
From ideal gas equation,
PV = nRT
Divide both by n
PV / n = RT
Divide both side by P
V / n = RT/P
RT/P => constant
Therefore,
V₁ / n₁ = V₂ / n₂
With the above formula i.e
V₁/n₁ = V₂/n₂
We can obtain the final volume of the gas as follow:
Initial mole (n₁) = 1.2 moles
Initial volume (V₁) = 5 L
Final mole (n₂) = 1.7 moles
Final volume (V₂) =?
V₁/n₁ = V₂/n₂
5 / 1.2 = V₂ / 1.7
Cross multiply
5 × 1.7 = 1.2 × V₂
8.5 = 1.2 × V₂
Divide both side by 1.2
V₂ = 8.5 / 1.2
V₂ = 7.08 L
Therefore, the final volume of the gas is 7.08 L
can you explain how to convert 50psi to atm ?
Answer
50 Psi = 3.4023 atm
Q11
1 point
4.8 g of Magnesium reacts with 3.2g of oxygen.
Choose the correct mass of oxygen that will react with 48g of Magnesium?
68g
18g
32g
36g
Answer:
Amount of oxygen react with 48 g of magnesium = 32 gram
Explanation:
Given:
Amount of oxygen react with 4.8 g of magnesium = 3.2 g
Find:
Amount of oxygen react with 48 g of magnesium
Computation:
Using Law of equal proportion;
Amount of oxygen react with 48 g of magnesium = 48(3.2/4.8)
Amount of oxygen react with 48 g of magnesium = 32 gram
Helppp 88.0 grams of Boron, how many atoms of Boron (B) are present?
Answer:
There are no atoms becuase atoms are not in elements.
Explanation:
An atom absorbs radiation. Select the possible changes this could have on the atom:
*it can change the atomic mass
*it can cause the atom to lose an electron
*it can cause the atom to become and ion
*it cause the atom to change element
Answer:
*it can cause the atom to become and ion
A tissue is a group of ____________ organized to perform a specific function.
рахмаат эже Айюб в бишкек и мы стали его называть как
Answer:
brainliest please
Explanation:
A tissue is an ensemble of similar cells and their extracellular matrix from the same origin that together carry out a specific function. Organs are then formed by the functional grouping together of multiple tissues.
CAN SOMEONE PLEASE CHECK MY ANSWER!!!
If it’s wrong please correct me!!!
*will mark brainliest*
yes the answer is right bro
How does ice make room temperature water so cold so fast? Does the water from the ice melting off when the room temp water hits the ice cube make it cold?
Answer:
ice absorbs heat from water.
Explanation:
Heat is a measure of molecular activity: the faster a thing's molecules move, the more heat that substance contains. And because everything is made of molecules, and molecules are in constant motion, everything contains at least some heat.
Because ice molecules move slowly and cluster tightly together, they produce a relatively low amount of heat. When ice is placed in a glass of water whose molecules are moving at a greater rate, the ice begins to absorb energy, because heat always travels from regions of relative warmth to colder areas in order to equalize temperatures. In other words, ice absorbs heat from the water.
As the water molecules lose energy, they begin to slow down, and consequently cool. So, it's kind of the opposite of what you might think: when we put ice in water, the ice doesn't give its cold to the water, it takes heat from the water.
The specific heat of water is 4.2j/g ºC how much heat is required to raise the temperature of 100 g of water by 5 ºC
Answer:
116,823 J
Explanation:
formula : q=m C delta T
q = heat = unknown
mass = 100 g
C = specific heat = 4.2 J/K*g
delta T = temperture in Kelvins: 5 + 273.15 = 278.15 K
q = (100 g) ( 4.2 J/K*g) (278.15 K) = 116,823 J