Doube Bubble Map
Double Bubble Map
Compare
to examine the character or qualities of especially in order to discover resemblances or differences or to respresent as simillar
Contrast
to compare in order to show unlikeness or differences; note the opposite natures, purpose, etc of:
Bubble Maps
used to describe qualities using adjectives ("sparkle words") and adjectives phrases. As a writing tool it enriches students' abilities to identify qualities and use descriptive words. In the center circle, write the word or thing being described.
to examine the character or qualities of especially in order to discover resemblances or differences or to respresent as simillar
Contrast
to compare in order to show unlikeness or differences; note the opposite natures, purpose, etc of:
Bubble Maps
used to describe qualities using adjectives ("sparkle words") and adjectives phrases. As a writing tool it enriches students' abilities to identify qualities and use descriptive words. In the center circle, write the word or thing being described.
HYDROGEN
Hydrogen is the lightest element of the other elements and is the most abundant element in the universe.Hydrogen is a very useful element. Because hydrogen is used to make ammonia for fertilizers, distillation
metals, and methanol to make basic materials such as plastics.Hydrogen is also used as a rocket fuel in which liquid hydrogen is combined with liquid oxygen to produce a powerful explosion. Scientists hope that someday hydrogen can be used as a clean alternative fuel instead of gasoline.Hydrogen is the first element in the periodic table. Hodrogen is the simplest atom that consists of a single proton in a nucleus orbiting by a single electron.Characteristics and Properties of HydrogenSymbols: HAtomic Number: 1Atomic weight: 1.00794Classification: not metalsPhase at Room Temperature: GasDensity: 0.08988 g / L @ 0 ° CMelting point: -259.14 ° C, -434.45 ° FBoiling point: -252,87 ° C, -423,17 ° FDiscovered by: Henry Cavendish in 1766At standard temperature and pressure, hydrogen is a gas that is colorless, odorless, and tasteless.Hydrogen is highly flammable and burns with invisible fire. Hydrogen will cause burns when it comes in contact with oxygen.The reaction product of hydrogen and oxygen is water or H2O. Hydrogen gas consists of diatomic molecules shown with the symbol H2.The most common place to find hydrogen on earth is water. Each water molecule (H2O) contains two hydrogen atoms. Hydrogen is also found in various compounds throughout the earth including hydrocarbons, acids, and hydroxides.There is very little free hydrogen in the earth's atmosphere. Because very lightly hydrogen finally passes into space. The only free hydrogen on earth is deep underground.Hydrogen is mostly found in stars and planets. The sun consists of mostly hydrogen. Deep in the sun, high pressure hydrogen atoms are converted into helium atoms. This conversion is called fusion and releases heat and energy that we see as sunlight.British
scientist Henry Cavendish discovered hydrogen as an element in 1766.
Cavendish experimented with zinc and hydrochloric acid. He discovered hydrogen and also discovered that zinc and hydrochloric acid produce water when burned.The name hydrogen comes from the Greek word "hydro" (meaning water) and "gene" (meaning creator). This is called by the French chemist Antoine Lavoisier because when a hydrogen burn "creates water".Ions and IsotopesHydrogen can be negatively charged and become an anion called hydride. But hydrogen can also be positively charged as a cation.Protium is the most common isotope of hydrogen. It does not have neutrons and protons. Other common isotopes include deuterium and tritium.Hydrogen is highly flammable. As you know, the Sun is one of the big fireballs. One element that makes the sun shine so bright is hydrogen.
HELIUM
Helium is the lightest element after hydrogen and is the second common element in the universe. Helium is at the top of the noble gas group in the periodic table.Symbols: HeAtomic number: 2Atomic weight: 4.00260Classification: A noble and nonmetal gasPhase at Room Temperature: GasDensity: 0.1786 g / L @ 0 ° CMelting point: -272.20 ° C, -457.96 ° FBoiling point: -268.93 ° C, -452.07 ° FDiscovered by: Pierre Janssen in 1868At room temperature helium is odorless, tasteless, and is a colorless gas. It
has a very low boiling and melting point, which means that helium is
commonly found in the gas phase except under the most extreme
conditions. Helium is the only non-solid element under normal pressure and remains liquid even at zero.Helium is one of inert or noble gases. Means that its outer shell is full of electrons. This makes it extremely unreactive and non-flammable.Helium is quite rare on Earth. There is very little in the atmosphere of the earth because it is so light that it eventually escapes into space.Scientists believe that most of the helium in the universe was created in the formation of the universe. However, new helium is made at the center of the star and also as part of radioactive decay on Earth. Helium from radioactive decay can be found underground trapped in natural gas reservoirs.Helium is constantly being produced in the internal core of stars. Deep within the star, intense pressure causes the hydrogen atom to be transformed into a helium atom. This creates energy, heat, and light which is the power of the stars and the sun. This conversion is called nuclear fusion.Helium is used in balloons and air balloons to make them float. It is not shaped like light on hydrogen, but the gas is much safer than the highly flammable hydrogen.The largest industrial users of helium gas are used in MRI scanners that use gas to keep magnetic superconductors cool. Other applications include silicon wafers for electronics and as a protective gas for welding.Helium was first discovered in 1868 by astronomer Pierre Janssen. He saw a new element when studying the solar eclipse. This element was not found on Earth until 1895.Helium gets its name from the Greek word "Helios" which means "sun". Helios is also the name of the Greek sun god.There are eight known isotopes in helium. The most abundant isotope of helium is Helium-4 which was largely made at the beginning of the universe.Interesting Facts about Helium:The speed of sound in helium is about three times the speed of sound in the air. This causes the sound to get high-pitched and shrill when they inhale helium.Helium has never been observed by scientists for bonding with other elements in forming compounds.Helium is often mixed with oxygen in a scuba air tank to melt oxygen. It is used as a substitute for nitrogen because it will not dissolve in the blood and will leave the human body faster.In general, helium will not combine with itself to create molecules, but is found as a single atom.
An.MR
Explain what reaction reactions occur in hydrogen or helium
BalasHapusI'll explain to you what happens in stars in layman's terms. Helium is a noble gas with low reactivity as it has its valence shells satisfied.
HapusSo as you know it won't react no matter what you do.
But what happens in the core of stars is a totally another factor. The pressure and temperature in the core of stars can be i reach billions if not trillions of Pascals and Kelvin respectively. Such high pressure and temperature cause an atom to be stripped of its electrons and form a state called plasma state.
Now comes the reaction part.
Lab/industrial reactions : When any reactant is made to react there's no change in the overall structure of the atom itself, other than breaking and forming bonds which leads to formation of new compounds. Reaction maybe exothermic or endothermic and that's much relevant to us now. These reactions are a chemical process.
Nuclear reactions: They are physical process. These reactions are the big daddy of all other reactions.
Here new compounds aren't made, here atoms are made. Things that make us and everything in this universe are made in the stars. Stars are the factories which makes atoms.
In the core of stars, atoms are in a plasma state.
I'll use the example of hydrogen.
Within the core of a star atoms break down into their constituent elementary parts called protons and electrons.
The protons are made to collide with each other at high speeds. Protons are positively and hence they repel each other. So to overcome their repulsion, the high temperature and pressure is required. When they fuse with each other their is a mass defect i.e, the mass of the product is less than that of the original two protons. This mass defect is released in the form of energy as heat and radiation.
I'll give you the example
Mass of 4 protons ( 4 H atoms without electrons) =
4.03176 ± 0.00028 g/mol
(4 protons fuse to form 1 He atom)
Mass of He atom ( no electrons) produced =4.0026020 ± 0.0000020 g/mol
Mass defect =( 4.03176 – 4.0026020) ± (0.00028 + 0.0000020)
Mass defect = 0.029158 ±0.000282 g/mol
This mass defect is released in the form of energy which can be calculated from the famous equation of Einstein E=mc².
So in simple words, in stars atoms don't react to give compounds, they are used to make new elements.
What happens in with hydrogen in stars is what happens with Helium. Helium is stripped of its electrons, at Super high temperature and pressure they are made to collide with each other and form new elements. Stars prefer to fuse lighter elements because they require less energy to be fused relative to heavier elements such carbon, oxygen etc.
Hi Maya, please explain the most prominent thing to distinguish between hydrograph and helium, thank you.
BalasHapusHidrografi menurut International Hydrographic Organization (IHO) adalah that branch of applied sciences which deals with the measurement and description of the features of the seas and coastal areas for the primary purpose of navigation and all other marine purposes and activities, including offshore activities, research, protection of the environment, and prediction services.
Hapusand
Helium is the second largest and second-lightest element in the universe, accounting for 24% of the total universe of total unity and 12 times the mass mass of all other heavy elements. The same abundance of helium can also be found in the Sun and Jupiter.
Whether hydrogen has a negative impact on the environment, please explain?
BalasHapusDampak lingkungan hidrogen
HapusHidrogen dalam lingkungan: Hidrogen membentuk 0,15% dari kerak bumi, itu adalah unsur utama air. 0,5 ppm hidrogen H2 dan proporsi varial sebagai uap air yang hadir di atmosfer. Hidrogen juga merupakan komponen majosr biomassa, consituing 14% berat.
Stabilitas lingkungan: hidrogen terjadi secara alami di atmosfer. Gas tersebut akan hilang dengan cepat di daerah yang berventilasi baik.
Efek pada tanaman atau hewan: Setiap efek pada hewan akan berhubungan dengan oksigen lingkungan kekurangan. Tidak ada efek samping diantisipasi terjadi menanam hidup, kecuali es yang diproduksi di hadapan gas berkembang pesat.
Efek pada kehidupan air: Tidak ada bukti saat ini tersedia pada efek hidrogen pada kehidupan air.
Nomor atom : 1 Massa atom : 1.007825 g.mol -1 Elektronegativitas menurut Pauling : 2.1 Massa Jenis : 0,0899 * 10 -3 g.cm -3 pada 20 ° C Titik lebur : - 259,2 ° C[ Titik didih : - 252,8 ° C Vanderwaals radius : 0,12 nm
what is the different about hidrogen and helium?
BalasHapusHYDROGEN
HapusHydrogen is the lightest element of the other elements and is the most abundant element in the universe.Hydrogen is a very useful element. Because hydrogen is used to make ammonia for fertilizers, distillation metals, and methanol to make basic materials such as plastics.Hydrogen is also used as a rocket fuel in which liquid hydrogen is combined with liquid oxygen to produce a powerful explosion. Scientists hope that someday hydrogen can be used as a clean alternative fuel instead of gasoline.Hydrogen is the first element in the periodic table. Hodrogen is the simplest atom that consists of a single proton in a nucleus orbiting by a single electron.Characteristics and Properties of HydrogenSymbols: HAtomic Number: 1Atomic weight: 1.00794Classification: not metalsPhase at Room Temperature: GasDensity: 0.08988 g / L @ 0 ° CMelting point: -259.14 ° C, -434.45 ° FBoiling point: -252,87 ° C, -423,17 ° FDiscovered by: Henry Cavendish in 1766At standard temperature and pressure, hydrogen is a gas that is colorless, odorless, and tasteless.Hydrogen is highly flammable and burns with invisible fire. Hydrogen will cause burns when it comes in contact with oxygen.
and
HELIUM
Helium is the lightest element after hydrogen and is the second common element in the universe. Helium is at the top of the noble gas group in the periodic table.Symbols: HeAtomic number: 2Atomic weight: 4.00260Classification: A noble and nonmetal gasPhase at Room Temperature: GasDensity: 0.1786 g / L @ 0 ° CMelting point: -272.20 ° C, -457.96 ° FBoiling point: -268.93 ° C, -452.07 ° FDiscovered by: Pierre Janssen in 1868At room temperature helium is odorless, tasteless, and is a colorless gas. It has a very low boiling and melting point, which means that helium is commonly found in the gas phase except under the most extreme conditions. Helium is the only non-solid element under normal pressure and remains liquid even at zero.Helium is one of inert or noble gases