According to the question,16.2 kPa is equal to 0.16 atmospheres.
What is the atmospheres?
The atmosphere is the thin layer of gases and particles that surrounds Earth, protecting us from the sun’s harmful radiation and maintaining the planet’s temperature. It is composed of 78% nitrogen, 21% oxygen, 0.9% argon, 0.03% carbon dioxide, and trace amounts of other gases, as well as water vapour, dust, and other particles. The atmosphere works by trapping heat from the sun, allowing temperatures to remain relatively stable throughout the world. It also helps regulate the water cycle, ensuring that water remains available for life on Earth. The atmosphere also helps protect us from environmental hazards like ozone depletion and acid rain. In addition, it is home to many species of birds, insects, and other animals. Without the atmosphere, Earth would be a barren, lifeless planet.
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List some of the methods used to prevent or slow corrosion with detailed explanation
Answer:
There are several methods that can be used to prevent or slow corrosion:
Coatings: Applying a protective coating to a metal surface can prevent corrosion by creating a barrier between the metal and the environment. Common types of coatings include paint, galvanizing, and electroplating.
Cathodic protection: Cathodic protection involves applying a current to a metal surface in order to reduce the potential difference between the metal and its environment. This can help to prevent corrosion by reducing the electron flow that drives the corrosion reaction.
Inhibitors: Corrosion inhibitors are chemical substances that can be applied to a metal surface to slow or prevent corrosion. These substances work by reacting with the metal surface or the environment to form a protective film or layer.
Passivation: Passivation is a process that involves removing surface contaminants and oxide layers from a metal surface in order to improve its corrosion resistance. This can be achieved through chemical or mechanical means.
Materials selection: Choosing corrosion-resistant materials for specific applications can help to prevent or slow corrosion. For example, stainless steel is a commonly used material for corrosive environments because of its high resistance to corrosion.
Environmental control: Controlling the environment in which a metal object is used can also help to prevent or slow corrosion. For example, reducing humidity or keeping a metal object dry can help to prevent corrosion.
Maintenance: Regular maintenance, such as cleaning and inspection, can help to identify and address corrosion issues before they become severe. This can include removing corrosion products, repairing damage, and applying protective coatings as needed.
Calculate the mass of water needed to prepare 45 g of salt solution if the salt content in the solution is 12%.
The mass of water needed to prepare 45 g of salt solution if the salt content in the solution is 12% is 330g.
The solute is the thing that needs to dissolve, and the solvent is the thing that needs to dissolve it. With a wide variety of solutes and solvents, solutions can be created. We are aware of a wide range of solutions.
Given,
Mass of the salt solution (Solute) = 45g
salt content in the solution = 12%
Let Mass of water = x
Total mass of solution = 45 + x
Concentration of solution = Mass of solute / Mass of Solution × 100
⇒ 12 = 45 / 45 + x × 100
⇒ 12/100 = 45 / 45 + x
⇒ 0.12 = 45 / 45 + x
⇒ 0.12 (45 + x) = 45
⇒ 5.4 + 0.12x = 45
⇒ 0.12x = 45 - 5.4
⇒ x = 330g
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Leandra is learning about chemical reactions and she wants to examine the information that is included in a chemical equation. Which pieces of information does a chemical equation include
The pieces of information a chemical equation includes are:
The kind of molecules that are involved in the process. The several constituents that form a molecule.Whether or not the products are heavier than the reactants.A chemical equation is a graphical representation of a chemical process that employs symbols and chemical formulas. Reactant entities appear on the left, as well as product entities appear on the right, with a plus sign connecting the entities in both the reactants and the products and an arrow pointing towards the products to show the direction of the reaction.
Chemical formulae can be symbolic, structural (pictorial diagrams), or a combination of the two. The absolute values of the stoichiometric numbers are represented by the coefficients adjacent to the symbols and formulae of entities. Jean Beguin drew the very first chemical equation in 1615.
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A 36-gram sample of water has an initial temperature of 220C. After the sample absorbs 1200 joules of heat energy, the final temperature of the sample is
The specific heat of water is equal to 1200 joules / (36 grams × (240C - 220C)) = 16.7 joules/gram・°C.
What is temperature?Temperature is a measure of the average kinetic energy of the particles in a material. It is measured in degrees on the Celsius, Kelvin and Fahrenheit scales. Temperature is an important factor in many physical and chemical processes, such as the rate of chemical reactions, the speed of sound, the intensity of light and the properties of gases.
The specific heat of water, c, is calculated using the equation c = Q / (m × ΔT), where Q is the amount of heat energy, m is the mass of the sample and ΔT is the change in temperature.
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What is the identify of an element with 14 protons 14 neutrons and 14 electrons?
The element with 14 protons 14 neutrons and 14 electrons is Silicon
Protons and neutrons can both be found in the nucleus of an atom of any chemical element. These subatomic particles add up to give the atom's atomic mass. The characteristic that distinguishes isotopes of different elements from one another is their atomic mass.
Z, the atomic number, is 14 if there are 14 protons. Z being the quantity of large positively charged nuclear particles by definition. And Z establishes the atom's identity; if Z = 14,we can find on periodic table element that have atomic number 14 is silicon,
Therefore element with 14 protons 14 neutrons and 14 electrons is Silicon
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How many oxygen atoms are in 2.50 L of oxygen?
Answer:
There are 8.30x104-24 atoms of oxygen in 2.50 mol of oxygen gas. There are 7.53x10*23 atoms of oxygen in 2.50 mol of oxygen gas.
How many atoms are indicated by the prefixes for each of the following items. drag each item to the appropriate bin
tetrisdide montui donde bro utracondo chloride triponthou Decode 1 atom 2 atoms 3 atoms 4 stoms 5 atoms 6 atoms
The prefixes you provided do not correspond to any known chemical element or compound. The prefixes used in chemistry typically come from Greek or Latin and indicate the number of atoms present in a molecule of a certain element or compound.
For example, "mono-" indicates 1 atom, "di-" indicates 2 atoms, "tri-" indicates 3 atoms, "tetra-" indicates 4 atoms, and so on. prefixes let me know if you have any other question
Mono - 1 - montui, chloride
di - 2 atoms - donde
tri - 3 atoms - triponthou
tetra - 4 atoms - tetrisdide
utra - 5 atoms - utracondo are prefixes .
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Increasing the amplitude means you are increasing the ___ of a wave.
A)wavelength
B)wave speed
C)frequency
D)energy
Increasing the amplitude means you are increasing the energy of a wave option -D is correct answer.
Just what is amplitude?The distance between the wave's base and its crest is its amplitude. It represents the furthest the vibrating body has traveled.
As the vibration of the sound particles increases, the amplitude length also grows. The intensity and energy of the sound particle particles increase as a result. The sound is louder as a result of the increased energy.
The energy increases with increasing amplitude. In conclusion, waves carry energy. Their frequency and amplitude are related to the amount of energy they carry. Energy increases with frequency and amplitude, respectively, as they both rise.
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