Answer:
The answer is 26.03728. We assume you are converting between grams C2H2 and mole. You can view more details on each measurement unit: molecular weight of C2H2 or mol This compound is also known as Acetylene. The SI base unit for amount of substance is the mole.
Explanation:
The solution is 26.03728. We assume you are converting between grams C2H2 and mole. You could view more information on each size unit: molecular weight of C2H2 or mol This compound is also called Acetylene. The SI base unit for the quantity of the substance is the mole.
Is C2H2 a molecule?The C2H2 molecule is product of sigma-bonds and pi-bonds, with a bond attitude of one hundred eighty ranges. This linear molecular geometry is similar to that of CO2 (Carbon dioxide), which is likewise a non-polar compound.
C2H2 has a linear molecular geometry because all the atoms are symmetrically aligned inside the same aircraft. Both Carbon atoms are inside the centre of the C2H2 Lewis structure due to the fact they may be much less electronegative than Hydrogen atoms.
The chemical formulation for acetylene is C2H2 and the chemical composition for carbon monoxide is CO. There are 2 carbon atoms in every acetylene molecule and 1 carbon atom in every carbon monoxide molecule. In each mol of any chemical substance, there are 6.022*10^23 molecules.
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Explain how mass extinctions occur.
Answer:
Mass extinctions happen because of climate change, asteroid impacts, massive volcanic eruptions or a combination of these causes.
Explanation:
Which of the following correctly describes the difference (on average) between an electron in a 2s orbital and an electron in a 3s orbital?
Answer:
C: electrons is the 3s orbital are higher than those in the 2s orbital
Explanation:
Looking at the options, the correct one is that the electrons in the 3s orbital will possess more energy than those in the 2s orbital. This is because the the 2s orbitals will be filled with electrons first before the 3s orbital.
Also from basics we know that the energy of an orbital increases as the quantum number increases.
If a 2,000-kilogram car accelerates at a rate of 3 meters per second squared,
what is the force the engine applied to the car?
HELP
Answer:
Explanation:
assuming there is no friction
fnet=ma
2,000 kg*3m/s=6,000 N
What causes waves to occur?
Question 1 options:
Wind
Animals swimming in the water
I don't know...yet!
Gravitational pull from Earth
calculate the amount of water of crystalization in 10 g of Na2co3 .10 H2o
Answer:
the mass percentage of water of crystallization in washing soda is 62.9 %.
Explanation:
Which characteristic of living organisms is described by the following definition? "The ability
to detect changes in the environment and make responses".
1. nutrition
2. sensitivity
3.movement
excretions
Answer:
it's sensitivity
Explanation:
because it's the action of sensing and reacting to something
also it was process of elimination
Is calcium and fluorine
a. Nonpolar covalent
b. Ionic
c. Polar covalent
Answer:
Ionic
Explanation:
A transfer of electrons occurs when fluorine and calcium react to form an ionic compound. This is because calcium is in group two and so forms ions with a two positive charge. Fluorine is in group seven so forms ions with a negative charge.
Two atoms with different numbers of protons are what?
a)two different isotopes
b)two different ions
c)two different elements
Answer:
c) two different elements
Explanation:
A periodic table can be defined as the standard arrangement of chemical elements by atomic number, electronic configuration and chemical properties in a tabular form.
Generally, a proper representation of the mass number and atomic number of chemical elements is key and very important in chemistry.
Furthermore, as a rule, it should be noted that the mass number (nucleon number) is always larger than the atomic number(number of proton).
In the periodic table, all chemical elements are identified based on number of protons because it represents the atomic number.
This ultimately implies that, numbers of protons (atomic numbers) is used to differentiate an atom of one chemical element from the atom of another chemical element.
Hence, two atoms with different numbers of protons are two different elements.
For example, Hydrogen has one proton while Oxygen has 8 protons.
What are the reactants shown in this picture???
Answer:
CH3C OOH + NaHCO3
&
NaHCO3 + H2O
Explanation:
The reactants of a chemical equatuon are always on the left side, whilst the right side is the products of the equation.
Atoms consis of mostly empty space, but in the center, you will find the nuetron holding the protons. True or False
Answer:
you will find protons and neutrons in the center of an atom.
How many moles of hydrogen gas will form if 0.35 moles of Na reacts with an excess of water?
Answer:
Write the balanced reaction equation. From this, note the mole ratio of Na to H₂; this enables you to know the number of moles of H₂ produced.
This technique is in your lecture notes and/or your chemistry textbook, so you should not have to ask Quorans to do your homework. (Take the hint.)
Explanation:
A protein is a polymer that is made of
Answer:
A protein is a polymer that is made of amino acids.
What is in our head?
A.brain
B.skull
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Answer:
In our head there is skull and inside the skull there is our brain.
Answer:
Both brain and skull is inside our head. If you meant like really inside, then the brain will be the most appropriate answer. Actually, inside our head, there is the skull and inside our skull is the brain.
When white light passes through a prism, what can be discovered?
A)
White light is made invisible by passing through prisms.
B)
White light is made brighter by passing through prisms.
White light is made of a spectrum of various colors.
D)
White light gets hotter when it passes through prisms.
Answer:
White light is made of a spectrum of various colors.
Explanation:
As light passes through a prism, it is bent, or refracted, by the angles and plane faces of the prism and each wavelength of light is refracted by a slightly different amount. ... As a result, all of the colors in the white light of the sun separate into the individual bands of color characteristic of a rainbow.
Have you figured out the answer yet ?
Answer:
no
Explanation:
Answer:
Not yet!
Note:
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In a 63.17 g sample of SOs, how many grams are sulfur?
Answer:
25.30 gram
Explanation:
No of moles = given mass / molar mass
No of moles = 63.17/80.06
0.7890 moles
Mass of sulphar = no of moles× molar mass of sulphar
Mass of sulphur = 0.7890×32.065
25.30 gram
How can scientists control the flammability of a substance?
Answer: This is simple, if it has a high flammability, and you light it on fire, then that would be a chemical change.
Explanation:
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Give the boiling point elevation for the following: 150 grams of H2SO4 dissolved in 2.5 kg of H2O (i=2)
Answer: b
Explanation:
The formula of methane is CH4. The symbols for the two elements in methane are C and H. Give the names of these two elements.
Answer:
Carbon and Hydrogen
Explanation:
So the C stands for Carbon and H is for Hydrogen. Methane (CH4) is made up of one atom of Carbon and 4 atoms of Hydrogen.
Hope this helps
Radioactive dating uses the ________ of a radioactive element to determine the exact age of a sample of rock or fossil.
A.age
B. number
C.half life
Answer:
Radioactive dating uses the age of a radioactive element to determine the exact age of a sample of rock or fossil.
Explanation:
The method of matching the profusion ratio of a radioactive isotope to a source isotope to ascertain the age of a substance is described radioactive dating. Potassium-Argon dating is the usual generally employed procedure of radiometric dating. Potassium is an ingredient in many traditional minerals and can be practiced to discover the ages of metamorphic and volcanic rocks.
In a bag there are 72 candy bars , 40 of them are are snickers,24 of them are mikly ways, and the rest are kit kats.
Answer:
8 kit kats
Explanation:
I assume you asking how many kit kats there are. If thats the case, then the answer is 8 kit kats.
How many grams of iodine are required to react with 3.20 g of aluminum
Answer:
use the equation moles = mass / rfm. we can't answer this because you haven't gave us the molar mass. if the question you have has 2 moles, divide the reactant by 2 to even it as well as the mass
If 11.87 grams of sand (SiO2) were contained in the mixture, how many atoms of oxygen were in the mixture?
Answer:
2.38x10²³ atoms oxygen
Explanation:
To solve this question we need to convert the mass of sand to moles using its molar mass (Molar mass SiO₂ = 60.08g/mol). Twice these moles are the moles of Oxygen and using Avogadro's number we can find the amount of atoms of Oxygen in the mixture:
Moles SiO₂:
11.87g * (1mol / 60.08g) = 0.1976moles SiO₂
Moles Oxygen:
0.1976moles SiO₂* 2 = 0.3951moles oxygen
Atoms oxygen:
0.3951moles oxygen * (6.022x10²³atoms / 1mol O₂) =
2.38x10²³ atoms oxygenHow many moles are equal to 7.28 x 1025 atoms of an element?
#Use Avogadro
Number of atoms = mol × 6×10²³
7.28 × 10²⁵ = mol × 6×10²³
mol = (7.28×10²⁵) : (6×10²³)
mol = 121.3mol
Which best describes what occurs when heating a compound containing a
metal in the flame of a Bunsen burner?
1)Forms new atoms in the compound. When these new atoms are formed in the
compound, thes release energy as colored light.
2)Can destroy atoms in the compound. When the atoms of the compound are
destroyed, this gives off energy in the form of heat and colored light.
3)Can cause electrons in some of the metal atoms to move further away from the
nucleus. When these excited electrons return to their original locations, energy is
given off in the form of colored light.
4)can cause new nonmetal atoms to be formed in the compound. These new nonmetal
atoms release energy in the form of colored light when they are created.
Answer:
Heating compound containing a metal can cause electrons in some of the metal atoms to move further away from the nucleus.
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Explanation:
2. How much force, in g cm / s2 , is exerted by a golf ball described in problem 1 striking a tree while accelerating at 20 cm / s2 ? Show how you can solve this problem without knowing that F = m a. Explain your solution.
Answer:
F = 1000 g cm/s²
Explanation:
Let the weight of 1 ball is 50 gram
Acceleration, a = 20 cm/s²
We need to find the force exerted by a golf ball. We know that,
F = ma
So,
F = 50 g × 20 cm/s²
F = 1000 g cm/s²
So, the required force is 1000 g cm/s².
What provides the energy to set the water cycle in motion?
Nothing, the water cycle does not need energy.
Clouds
Sun
Water.
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if a saline bag has a molarity of 0.155 and 0.75 L are given to a patient how many grams of NaCl did the patient receive?
Answer:
Mass = 6.79 g
Explanation:
Molarity = 0.155
Volume = 0.75L
Mass = ?
The relationship between these quantities is given as;
Molarity = Number of moles / Volume
Number of moles = Volume * Molarity
Number of moles = 0.75 * 0.155 = 0.11625 moles
Number of moles = Mass / Molar mass
Mass = Molar mass * Number of moles
Mass = 58.44277 g/mol * 0.11625 mol
Mass = 6.79 g
1 loop in the primary coil and 8 loops in the secondary. If the secondary voltage is 120 V, what must be the primary voltage
Answer:
[tex] V_{p} = 15 V [/tex]
Explanation:
Given the following data;
Number of loops in primary coil, Np = 1 loop.
Number of loops in secondary coil, Ns = 8 loops
Voltage in secondary coil, Vs = 120V
To find the voltage in the primary coil, Vp;
Transformer ratio is given by the formula;
[tex] \frac{V_{p}}{V_{s}} = \frac{N_{p}}{N_{s}}[/tex]
Making Vp the subject of formula;
[tex] V_{p} = \frac{N_{p}}{N_{s}} * V_{s} [/tex]
Substituting into the equation, we have;
[tex] V_{p} = \frac{1}{8} * 120 [/tex]
[tex] V_{p} = \frac{120}{8} [/tex]
[tex] V_{p} = 15 V [/tex]
Therefore, the voltage in the primary coil, Vp is 15 Volts.
What are the end products of anaerobic respiration in yeast cell ?
Answer:
glucose ethanol and co2
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Answer:
In anaerobic respiration yeast breaks down glucose, forming ethanol and carbon dioxide as its waste products. When the glucose is nearly used up, and provided that oxygen is present, yeast uses the ethanol as a respiratory substrate to produce carbon dioxide and water in aerobic respiration.
Explanation:
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