Answer:
An action that must be brought in the venue that has jurisdiction over the situs or is otherwise designated by law.
A sample of nitrogen gas contains 9.46x10^23 atoms of nitrogen. How much nitrogen is expressed in grams? round your answer to the nearest whole number.
We know
[tex]\boxed{\star{\sf No\;of\:atoms=No\:of\: moles\times Avagadro's\: number}}[/tex]
[tex]\\ \rm\Rrightarrow No\:of\;moles=\dfrac{No\:of\:atoms}{Avagadro's\:no}[/tex]
[tex]\\ \rm\Rrightarrow No\:of\:moles =\dfrac{9.46\times 10^{23}}{6.022\times 10^{23}}[/tex]
[tex]\\ \rm\Rrightarrow No\:of\:moles=1.6mol[/tex]
Again
[tex]\boxed{\star{\sf Mass=Molar\:mass\times No\:of\:moles}}[/tex]
[tex]\\ \rm\Rrightarrow Mass=1.6(14)[/tex]
[tex]\\ \rm\Rrightarrow Mass=22.4g[/tex]
Which best represents a homogeneous mixture of an element and a compound.
Answer:
The composition of air this is because it vmade up of oxygen, nitrogen, Nobel gages and Carbon dioxide
Can someone help me??? Please
Can someone please help me on this?
Answer:
c
Explanation:
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How many grams of KNO3 should be used to prepare 2.00 L of a 0.500 M solution?
Answer:
101 g KNO₃
Explanation:
Molarity is measued in moles per liter, mol L− 1, or molar, M, which means that a 0.500-M solution will contain 0.500 moles of potassium nitrate for every 1 L of solution.
Well, if you get 0.500 moles for every liter of solution, and your solution has a total volume of 2.0 L, it follows that it must contain 2 × 0.500 moles = 1.00 moles KNO₃
So, what mass of potassium nitrate is equivalent to one mole of the compound?
Potassium nitrate's molar mass, 101.103 g mol− 1, tells you the mass of one mole of potassium nitrate. In this case, the answer must be rounded to three sig figs, so m KNO₃ = 101 g KNO₃
Hope this helped!
101 grams of KNO₃ should be used to prepare 2.00 L of a 0.500 M solution.
What is Mole?
The mole is an amount unit similar to familiar units like pair, dozen, gross, etc. It provides a specific measure of the number of atoms or molecules in a bulk sample of matter.
A mole is defined as the amount of substance containing the same number of atoms, molecules, ions, etc. as the number of atoms in a sample of pure 12C weighing exactly 12 g.
Given,
Volume of KNO₃ = 2 L
Concentration = 0.5 M
Moles of KNO₃ = Concentration × volume
= 0.5 × 2
= 1 mole
Mass of KNO₃ = Moles × molar mass
= 1 × 101
= 101g
Therefore, 101 grams of KNO₃ should be used to prepare 2.00 L of a 0.500 M solution.
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What do chemical equilibrium constants tell us about the reaction?.
Answer:
Equilibrium Constant Definition An equilibrium constant, Keq, is a variable that describes a chemical reaction’s tendency to proceed to completion, meaning all the reactants are converted to products. The equilibrium of a reaction is the point at which the conversion of reactants into products equals the conversion of products back into reactants.
Citation:
Biologydictionary.net Editors. "Equilibrium Constant." Biology Dictionary, Biologydictionary.net, 21 Feb. 2017, https://biologydictionary.net/equilibrium-constant/.
in an atom the number of protons must be equal of
Answer:
electrons
Explanation:
Answer:
Electrons
Explanation:
^^
what is considered cisgender?
Answer:
that means whatever gender you are now is the same as what was presumed for you at birth.
Which use of pomace has become more available through new technologies?
- food flavorings
- animal feed
- landscaping mulch
- soil additives
Answer:
1. From which source is pomace derived? unused waste from food processing
2. Which use of pomace has become more available through new technologies? food flavorings
3. Criteria and constraints help guide decision-making as people work to extract useful materials from pomace. Which option is an example of how a criterion for success is applied in this situation? The criterion of minimizing chemical waste favors the use of high-temperature, high-pressure water.
4. Criteria and constraints help in deciding which methods to use when extracting useful chemicals from pomace. Which option is an example of an important constraint on a process? Organic solvents are expensive, which limits their use for extracting chemicals.
5. Which constraint is driving the interest in extracting useful chemicals from pomace? Pomace is available in greater quantities than needed for traditional uses and would be wasted.
Explanation: Just took the quick check 5/5 correct
New technologies have increased the availability of food flavorings as a use of pomace.
What is Pomace?Olive pomace oil is vir-gin olive oil made from the pulp of olives after they have been pressed for the first time. Following mechanical oil extraction, approximately Most other edible oils, such as canola, peanut, and sunflower oil, must be extracted using solvents, which is an industrial method used in the manufacturing of most other edible oils.
New technologies have increased the availability of food flavorings as a use of pomace.
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When 84. 8 g of iron (III) oxide reacts with an excess of carbon
monoxide, iron is produced.
Fe2O3(s) + 3C0 (9) > 2 Fe(s) + 3 CO2 (g)
What is the theoretical yield of iron?
Answer:
Use the balanced equation to determine the theoretical yield. Focus on the chemicals whose quantities you are given or are asked to find. CO is not important as it is excess and will make sure that all of the Fe2O3 will be changed to iron. Remember the quotients (numbers in front of formula) are the number of moles. You are given the mass of Fe2O3 in grams so you will need to convert 1 mole of Fe2O3 into grams (molar mass which, using simple atomic masses = 56x2 + 16x3 = 160g/mol but you use atomic masses that your course requires
Fe2O3(s) + 3CO(g)--> 2Fe(s) + 3CO2(g)
1 mol 2 mol
160g 112g
84.8g (112/160) x 84.8
So now you have the theoretical yield of Fe2O3 and the experimental (actual) yield = 54.3g)
Percentage Yield = (actual yield/theoretical yield) x 100
(◠‿◕)
Would you have more kinetic energy if you are traveling fast or slow?
fast
slow
Answer:
fast
Explanation:
Because kinetic energy is equal to half the product of mass and square of velocity, increase in velocity would increase the kinetic energy as well.
The solar system is the collective name for the sun, eight planets, and their moons. The
blank is the center of the solar system, and everything orbits around it.
Answer:
The sun
Explanation:
The sun is the center of the solar system and all the planets orbit around it (moons orbit around respective planets which orbit around the sun)
Answer:
The Sun.
Explanation:
☀️
The Sun is like the “power house” of the solar system, we rely on it, and everything orbits around it.
how many moles of methane (ch4) are in 7.31x10^25 molecules help please
Answer:
1.168 x 10^28
Explanation:
CH4= carbon + hydrogen: 12+(4 x1)= 16g
16 7.3 x 10^25
----- x ------------------- = 1.168 x 10^28
1 1
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4Li + O₂ ⇒ 2Li₂O
Li₂O = 2/4 x 3.33 = 1.665
A block of ice is placed outside on a hot summer dayDescribe the changes in particle motion and the corresponding changes in energy as the ice melts and eventually becomes water vapor .
Answer:
When solid ice gains heat, it changes state from solid ice to liquid water in a process called melting. Ice cubes in a cold drink, for example, gradually melt. ... When water absorbs enough heat, it becomes a gas (water vapor). This process is called evaporation.
Explanation:
When solid converts to gas then heat is required to break the intermolecular forces of attraction between the particles. In this process heat increase but temperature remains the same. Therefore, firstly melting and then evaporation takes place.
What is phase transition?Phase transition is a process in which transition takes place from one state to another of a medium on changing temperature or pressure. Phase transition is a physical process as there is no breaking of old bond and forming of new bonds takes place.
Melting is the process by which solid ice transforms into liquid water when exposed to heat, while evaporation is the process by which it transforms into gas. During evaporation and melting, heat energy is taken from the surrounding.
Therefore, firstly melting and then evaporation takes place.
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true or false. the arrow labeled C represents a transfer of chemical energy to mechanical energy. explain why this is true or false.
true or false. the arrow labeled A represents a transfer of solar energy to chemical energy. explain why this is true or false.
Answer:
6. True or False. The arrow labeled C represents a transfer of chemical energy to mechanical energy. Explain why this is true or false.
a. This is __False_____ because: Factory uses Mechanical energy with is converted to chemical energy.
7. True or False. The arrow labeled A represents a transfer of solar energy to chemical energy. Explain why this is true or false.
a. This is __True_____ because: Solar energy from the sun is first, then a chemical reaction makes food for the plant.
Explanation:
Change up the spelling, put it in your own words, I didn't use advanced grammar, don't copy and paste, don't get a 0.
An atom of oxygen has six electrons in its outermost ring and requires two more to become stable. What is the valence number of oxygen
Answer: Oxygen in its natural state has 6 valence electrons.
Explanation: The atomic number/ proton number of oxygen is 8, as seen on the periodic table. This is equal to the electron number.
This means there are 2 electrons in the core s shell (innermost), and 6 electrons in the p shell (outermost).
Valence electrons are the electrons found in the outermost shell, so Oxygen has 6 valence electrons.
I don't know if you've been taught electron configuration, but Oxygen's electron configuration is: [tex]1s^2 2s^2 2p^4[/tex] . The 2s and 2p are orbitals of the outermost ring in Oxygen, so adding 2+4 = 6 valence electrons.
A salt in which the anion is the conjugate _____ of a weak _____ will produce a basic solution. (Assume that the cation does not hydrolyze.)
Answer: conjugate base of a weak acid
Explanation: If the anion is a conjugate base of a weak acid, the solution would be basic. This is because weak acids do not produce enough hydrogen ions in the solution so does not really affect the acidity, so the conjugate base can react with water in the solution to produce a basic solution.
how many parts does the eukaryotic cell have in total
if u answer correctly u will get 20 points
Answer:
3 parts
Explanation:
Eukaryotic cells have 1) a membrane-bound nucleus; 2) numerous membrane-bound organelles and 3) several, rod-shaped chromosomes.
what is a biom what dose it do and why is it a thing lol
Answer:
a major ecological community, extending over a large area and usually characterized by a dominant vegetation.
A refrigeration lubricant with a high _____ point may have excessive wax separation, which can clog the system.
Answer:
ozone
Explanation:
A refrigeration lubricant with a high floc point may have excessive wax separation, which can clog the system.
What is floc point?The Floc point of the oil can be described as the temperature at which wax will start to precipitate from a mixture. When a mixture of 90% by volume of R-12 and 10% oil by Volume under the specified conditions.
Since the oil-soluble refrigerants lower the viscosity of the oil and affect both the pour point and cloud point. The floc point of the oil is a more important property where oil miscible refrigerants are used.
The results are used to compare the waxing tendency of the various different oils. It provides a method for determining the waxing tendency of the refrigeration lubricant. Floc point should not be confused with cloud point because cloud point is the temperature at which the wax is precipitated from the undiluted oil.
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A transverse wave that has electrical and
magnetic properties is known as
A. magnetism
B. loudness
C. electricity
D. electromagnetic energy
what is the frequency if the speed is 15 m/s and the wavelength is 3m ?
Answer:
5
Explanation:
15/3=5
as frequency = speed/ wavelength
Answer:
5Hz
Explanation:
Speed = Wavelength × Frequency
15. = 3. × ?
15 ÷ 3 = 5
Unit = Hz which means Hertz
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Alana drew diagrams to show how particles in a spoon move before and after the spoon is placed in hot liquid. At left a grid labeled Before of regularly arranged orange balls with large movement lines near each. At right a grid labeled After of regularly arranged orange balls with small movement lines near each. Which best explains how to correct Alana’s error? Make the particles in both diagrams larger. Show more movement in the ""Before"" diagram. Add more particles to the ""After"" diagram. Switch the labels on the diagrams.
The heating of the substance resulted in the transfer of energy and thereby increase the randomness. Thus, Alana's error can be rectified by switching the labels on the diagram.
What is the arrangement of atoms?The atoms are the smallest particles, and everything is made of atoms. The atoms in the object are arranged in a specific lattice to give shape to the object.
The heating resulted in the transfer of energy to the atoms, and the atoms started to move thereby will not be linearly arranged after heating.
Thus, the heating and the atomic arrangement effect can be explained by switching the labels on Alana's diagram. thus, option D is correct.
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Answer:
D
Explanation:
Switch the labels on the diagrams
A scients produces zinc iodide (Zn).
This is the method used
1. Viegh 0.500g of iodine
2 Dissolve the iodine in ethanol
3. Add an excess of zinc
4 Sir the mature until there is no further change
5. Fiter of the excess zinc
5. Evaporate of the ethanol
a Calculate the minimum mass of zinc that needs to be added to 0.500 g of iodine so
that the iodine fully reacts
The equation for the reaction is
Zn + Zniz
Relative atomic masses (Me): Zn = 65
1 = 127
Answer im a little confused what exactly you need answered. please clarify
Explanation:
Answer:
Environment is the nature and surroundings in which all plants, animals, humans and other living beings live and operate. ... It includes sunlight, atmosphere, land, water, plants, animals, sea life, minerals, different species and everything that occurs naturally on earth.Explanation:
[tex] \: \: \: [/tex]
In the measurement 0.342, which number is the estimated digit?
Answer:
"The last digit in any number is referred to as the estimated digit."
Explanation:
So it should be 2
Which subatomic particle is correctly paired with its properties?
A) Proton: positively charged, mass about equal to that of an electron
B) Neutron: no electric charge, mass about equal to that of a proton
C) Electron: negatively charged, mass about equal to a neutron
D) Positron: negatively charged, mass about equal to that of a proton.
Answer:
A. proton is positive charged ans and is equal to electrons
Proton positively charged, mass about equal to that of an electron subatomic particle is correctly paired with its properties.
The correct option is A.
What are subatomic particle made of?They include the heavier constituents of the small but extremely dense atom's nucleus, the positively charged protons and the electrically neutral neutrons, as well as the electrons, the negatively charged, nearly massless particles that still make up the majority of the atom's size.
Where is subatomic particle ?Two subatomic particles are bound together by the strong nuclear force to form the atomic nucleus. The proton is one of these subatomic elements. The neutron is the other. Similar in size and mass to protons, neutrons are electrically neutral or devoid of any net electrical charge.
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Nearly all weather occurs in the layer of the atmosphere called the ____
Answer:
Troposphere where the humans live and the lowest level of layer of atmosphere
When water is electrolyzed, it splits into hydrogen and oxygen.
What can be said about the masses of the reactants and products?
(1 point)
The mass of water is equal to the mass of oxygen.
The mass of water is equal to the mass of oxygen.
The mass of water is equal to the mass of hydrogen.
The mass of water is equal to the mass of hydrogen.
The mass of hydrogen produced is equal to the mass of oxygen produced.
The mass of hydrogen produced is equal to the mass of oxygen produced.
The mass of water is equal to the combined mass of hydrogen and oxygen.
The mass of water is equal to the combined mass of hydrogen and oxygen.
The mass of water is equal to the combined mass of hydrogen and oxygen.
What is Mass?This is defined as the quantity of matter in a physical body. The electrolysis reaction of water can be seen below:
2 H₂O ---> 2 H₂ + O₂
We can deduce that 36 grams of H₂O dissociated to give 4 grams of H₂ and 32 grams of O₂ which option D was chosen as the appropriate choice.
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Conservation efforts have been effective in _______. A. Increasing the number of endangered species b. Reducing all the negative impacts of human activity c. Preserving wildlife habitats d. All of the above.
Answer:
C. preserving wildlife habitats
Conservation efforts have been effective in preserving wildlife habitats.
What is conservation?They are efforts invested toward conserving or sustainable usage of natural resources.
Biodiversity conservation involves conserving plants and animal resources to prevent their abusive or wanton usage and depletion.
Through efforts at conserving biodiversity, wildlife habitats have to be preserved. By preserving habitats, biodiversity is conserved. Through habitat destruction, biodiversity is destroyed.
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