Need this answered immediately. 50 points.
Answer:
a
b
d
c
a
Explanation:
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Answer:
Hey if its up tomorrow I can I can’t rn sorry :(
Explanation:
C.5A What is the symbol of the atom shown below?*
8 points
8 electrons
8 protons
8 neutrons
N
c
..........................
One of the first major scientific discoveries of the Renaissance was made by a Polish mathematician and astronomer,
who introduced the
theory.
One of the first major scientific discoveries of the Renaissance was made by a polish mathematician and astronomer, Nicolaus Copernicus who introduced the heliocentric theory.
Nicolaus Copernicus (1473-1543) was born in Torun, Poland, and he introduced a book called De revolutionibus orbium coelestium (On the Revolutions of the Heavenly Spheres) in 1543, where he stated that:
"All the spheres (planets and moons) revolve around the sun as their midpoint; therefore, the sun is the center of the universe."
At that time, the Earth was considered the center of the Universe, according to Aristotle (384-322 BC), synthesized in the Ptolemy's geocentric theory appeared in The Almagest (140 AD).
Copernicus generated controversy, mostly among the clergy and scientists, and he wrote in his book that his main intention was to propose some changes to the Ptolemy's geocentric theory that better explained planetary motion but without trying to refute it at all.
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What happens to the molecules of Nitrogen as it goes through deposition?
Which is a characteristic of an atom?
Atoms are the largest unit of matter.
Atoms can be seen by the naked eye.
Atoms come in different varieties.
Atoms are created in the Earth’s core.
Answer:
its atomic number
Explanation:
which is defined as the number of units of positive charge (protons) in the nucleus. For example, if an atom has a Z of 6, it is carbon, while a Z of 92 corresponds to uranium.
3. A sample of gas has a volume of 364 mL at a temperature of 25 ᴼC. What will the volume be if the temperature is changed to 100 ᴼC while the pressure is kept constant?
Answer:
1027.9 mL, its easy
Explanation:
How many molecules are there in 3.00
moes of NH₃
Now
No of molecules:
[tex]\\ \sf\longrightarrow No\:of\;moles\times Avagdro\:no)[/tex]
[tex]\\ \sf\longrightarrow 3(6.022\times 10^{23})[/tex]
[tex]\\ \sf\longrightarrow 18.066\times 10^{23}[/tex]
[tex]\\ \sf\longrightarrow 1.8066\times 10^{22} molecules [/tex]
Homeostasis in a constantly changing environment is a process known as
Which electrons does an electron-dot diagram represent?
Answer:
a representation of the valence electrons of an atom that uses dots around the symbol of the element. The number of dots equals the number of valence electrons in the atom.
Answer:
A electron dot diagram is a representation of the Valence electron of an atom that uses dots around the symbol of the element
Simplified answer = The Valence Electrons
How many atoms of oxygen in the chemical formula 2Ca(ClO2)2?
Answer:
Calcium Nitrate is made up of three different elements and contains a total of nine atoms. This compound's formula is Ca(NO3)2. There is one calcium atom, two nitrogen atoms, and there are six oxygen atoms in calcium nitrate
is it possible to convert molecule to molecule?
Answer:
yes, it's possible to covert molecule to molecule
Explanation:
Converting between molecules and moles is done by either multiplying by or dividing by Avogadro's number.
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What is the periodic table?
Answer:
A Chart Of The Chemical Elements That Displays Them In Rows Horizontally In Order Of Increasing Atomic Number And Vertically According To Similarity Of The Chemical Properties Of Their Atoms.
One of the following species is not isoclectronic. A. PO4³-B. BrO4- C. H2SO4 D. XeF4 E. CCl4
Answer:
फ्य्फ्य्क्ज्य्य्क्सुग्किग्क्सिगिदित्फ
PLEASE HELP!!!!! i give a lot of points!!!!
Answer:
I think it s the third one
BTW yw if it's correct
How are physical changes related to state of matter changes?
Answer:
when something change physicaly the state of matter changes.
Explanation:
like ice when it is melted it turns into water a liquid.
A solid to liquid
Latisha runs a plant nursery. Which field of science would best help Latisha
learn how to grow plants?
O A. Life science
B. Space science
C. Earth science
D. Physical science
Answer:
A. Life science
Explanation:
Life science deals with organisms and plants are organisms.
what is the difference between cyclic compound and straight chain compound in hydrocarbons reaction
Explanation:
Cyclic Hydrocarbons
A cyclic hydrocarbon is a hydrocarbon in which the carbon chain joins to itself in a ring. A cycloalkane is a cyclic hydrocarbon in which all of the carbon-carbon bonds are single bonds. Like other alkanes, cycloalkanes are saturated compounds. Cycloalkanes have the general formula CnH2nCnH2n. The simplest cycloalkane is cyclopropane, a three-carbon ring.
What state does a gas turn into if it reaches it freezing point?
O Solid
O Liquid
Gas
O None of the above
Answer:
Solid
Explanation:
According to Wikipedia
Deposition is the phase transition in which gas transforms into solid without passing through the liquid phase. Deposition is a thermodynamic process. The reverse of deposition is sublimation and hence sometimes deposition is called desublimation.
What type of bonds typically form between two nonmetal atoms?
Answer:
Covalent Bonds
A covalent bond is formed between two non-metals that have similar electronegativities. Neither atom is "strong" enough to attract electrons from the other. For stabilization, they share their electrons from outer molecular orbit with others
Answer:
Covalent bonds form between two non-metal atoms.
Explanation:
Nonpolar covalent bonds form when the electronegativity values are very similar, while polar covalent bonds form when the electronegativity values are a little further apart. If the electronegativity values of two atoms are different, ionic bonds are formed.
when a candle burns both physical and chemical changes take place at identify these changes give another example of a familiar process in which both the chemical and physical changes takes place.
Answer:
So, the melting of wax and vapourisation of melted wax are physical changes. Chemical Changes : The wax near flame burns and gives new substances like carbon dioxide, carbon soot, water vapour, heat and light. LPG is another example of a familiar process in which both the chemical and physical changes take place.
What did Fermi mean when he said, "The reaction is self-sustaining"?
The reaction reached critical mass.
A spontaneous chain reaction had been accomplished.
The nuclear reaction was out of control.
The nuclear reaction could be controlled and maintained.
Answer:
The nuclear reaction could be controlled and maintained.
Explanation:
People had initiated a self-sustaining nuclear reaction--and then stopped it. He had released the energy of the atom's nucleus and controlled that energy.
Fermi's achievement in setting off the first self-sustaining nuclear chain reaction from his design of an atomic pile led to a new Age of the Atom. The controlled release of nuclear energy was now a reality
Calculate the volume of an object with a density of .85 g/mL and a mass of 212 g.
[tex]\\ \sf\longmapsto Volume=\dfrac{Mass}{Density}[/tex]
[tex]\\ \sf\longmapsto Volume=\dfrac{212}{0.85}[/tex]
[tex]\\ \sf\longmapsto Volume=249.4mL[/tex]
Answer:
[tex]249.41 \: ml[/tex]
Explanation:
[tex]volume = \frac{mass}{density} \\ = \frac{212g}{0.85 \: g \: {ml}^{ - 1} } \\ = 249.41 \: ml[/tex]
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Imagine you are combining carbon and oxygen in a chemical reaction. If some of the carbon forms carbon monoxide instead of carbon dioxide, this would decrease the reaction's _____ of CO2.
A) total energy
B) C:O ratio
C) actual yield
D) theoretical yield
A chunk of sulfur has a volume of 8.33 cm3. What is the mass of this sulfur? (Density of sulfur = 2.07 g/cm3.)
Explanation:
equations to note:
density= mass/volume
mass= volume *density
volume= mass/density
you have a volume- 8.33cm3
you have a density- 2.07 g/cm3
Answer:
8.33cm3 * 2.07g/cm3= 17.24g
mass= 17.24g
What type of decay is illustrated by the equation below?
A. alpha decay
B. beta decay
C. positron emission
D. electron capture
B. beta decay
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Answer:
Beta Decay (B)
What is "plant food"?
Answer:
Plant food is the sugars created via photosynthesis. The sugar created is glucose which can be used by the plant for energy and also to make other things like starch and cellulose.
Explanation:
Plant food is the sugars created via photosynthesis. The sugar created is glucose which can be used by the plant for energy and also to make other things like starch and cellulose. I hope this helps : )
how many grams of Zn are there in 0.54 mol of Zn
Answer:
35.3052 grams of zinc are there in 0.54 mol of zn.
please help!!!!!!! thank you :)
Which element is the most reactive?
Answer:
Cesium
Explanation:
Cesium is second from the bottom of this group, has 6 shells of electrons, and it matches the features of a reactive atom, making it the most reactive element.
list of elements whose name is derived from scientist names
Answer:
Curium,Bohrium,Einsteinium,Lawrencium,Seaborgium,Ferminium
Explanation: