Answer:
To travel this far, it would take 19 years.
The number of moles in the 4.30 g of SiH₄ is 1.338 moles.
The mole is a SI unit of measurement that is used to calculate the quantity of any substance.
To calculate the moles
The molar mass of SiH₄ is 32.12 g
The mass of SiH₄ is 43.0 g
Thus, the number of moles in the 4.30 g of SiH₄ is 1.338 moles.
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43.0 grams of SiH4 converts to 1.338 moles.
The molecule is thiophosgene or CSCl₂.
As the informations given, the molecule contains 12.17 grams of carbon, 32.53 g of sulfur, and 72.19 g of chlorine.
Molar mass of carbon =12.
Molar mass of sulphur =32.
Molar mass of chlorine =35.
So on an average estimation, one mole of the molecule contains one mole of carbon atoms, one mole of Sulphur atoms and two moles of chlorine atoms. Molar mass of an element is the average weight of one mole of atoms of that element which is made average according to the variations of percentage availability of isotopes of that element on earth.
So the estimated molecule is CSCl₂ or thiophosgene.
They are two different elements.
B.
They are two different compounds that include different elements.
C.
They are two different compounds that include the same elements in different arrangements.
D.
They are two different mixtures that include the same elements in different arrangements.
The answer to this question is C.
Answer:
Explanation:
Hydrogen peroxide is a chemical compound with the formula H₂O₂. In its pure form, it is a very pale blue liquid, slightly more viscous than water. It is used as an oxidizer, bleaching agent, and antiseptic. Concentrated hydrogen peroxide, or "high-test peroxide", is a reactive oxygen species and has been used as a propellant in rocketry. Its chemistry is dominated by the nature of its unstable peroxide bond.
Chemical formula: H2O2
Density: 1.45 g/cm³
Boiling point: 302.36°F (150.20°C)
Average Molar mass: 34.01 g/mol
Melting point: 31.23°F (-0.43°C)
Legal status: Over-the-counter drug · Not evaluated by FDA
Water is an inorganic, transparent, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of all known living organisms. It is vital for all known forms of life, even though it provides no calories or organic nutrients. Its chemical formula is H₂O, meaning that each of its molecules contains one oxygen and two hydrogen atoms, connected by covalent bonds. Two hydrogen atoms are attached to one oxygen atom at an angle of 104.45°.
Boiling point: 212°F (100°C)
Melting point: 32°F (0°C)
Chemical formula: H2O
Average Molar mass: 18.02 g/mol
IUPAC ID: Water
Hydrogen peroxide(wiki)
Water(wiki)
So probably C or D i dont know
Sorry if it is wrong