How many moles of oxygen react with hydrogen to produce 22.8 mol of H2O? The balanced equation is as follows: 2H2 + O2 → 2H2OHow many grams of CO2 are produced if 35.48 mol of HCl are reacted according to this balanced chemical equation? CaCO3 + 2HCl → CaCl2 + CO2 + H2O
Answers
11.4 mols O₂
CaCO₃ + 2HCl → CaCl₂ + CO₂ + H₂O
780.7 grams CO₂
hope this helped!
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Students are able to introduce a sample of gas into a chamber with a moveable wall, allowing them to change the size of the portion of the chamber occupied by the gas. When the volume of the gas is reduced, what change in property would be the most reasonable to expect? a.)the temperature will decrease b.)the pressure will decrease c.) the pressure will increase d.) the density will decrease
What is the gram-formula mass of Fe(NO3)3?(1) 146 g/mol (3) 214 g/mol (2) 194 g/mol (4) 242 g/mol
1. what type of ion is chlorine ?2. what type of ion is oxygen?3. what type of ion ismagnesium?4. what type of ion is silicone?5. what type of ion is carbonate?6. what type of ion is nitrate?
Answers
Aluminum and nitrogen combines together through ionic bonding to form aluminum nitride AlN. Thus, the type of bonding here is ionic bond.
What is ionic bonding?
Ionic bonding is the strongest bond type formed between a metal and nonmetal. Metals are electrons rich and can easily lose electrons to form their higher oxidation states.
Non-metals up to group 17 are electrons deficient and they need one or more electrons to attain stability or to fulfill the octet. Metals donate electrons to non-metals forming ionic bonds.
Eve though aluminum is placed with non-metals it shows metallic properties which is classified into 13th group thus, having 3 valence electrons. Nitrogen is 15th group element with 5 valence electrons and thus, need 3 more electrons to attain octet.
Therefore, Al donates it 3 valence electrons to nitrogen forms an ionic bond between them and hence, form the ionic compound aluminum nitride AlN.
To find more on aluminum nitride, refer here:
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B) a molar volume
C) the mole ratio
D) Avogadro's number
Answers
Hey there!
Molar mass is the mass of one mole of the substance.
The molar mass of carbon-12 is 12 grams, because this is the mass of one mole of the substance.
This means the answer is a) one mole.
Hope this helps!
Answer:A
Explanation:
Answers
In general solids are easier to transport than liquids, but the above metal example is a valid one and the only other one that comes to mind is that of concrete. It is mixed as a liquid and transported as such, but then sprayed or laid down to dry and form a solid surface or filler.
In general, solids are easier to transport than liquids, but the above metal example is a valid one and the only other one that comes to mind is that of concrete. It is mixed as a liquid and transported as such, but then sprayed or laid down to dry and form a solid surface or filler.
Explanation:
Both gases and liquids are fluids, therefore technically, the gas to liquid stuff does not work.
In addition to the LN2 and LO2 the opposite guys mention, organic compound gases also are oftentimes created into liquids. LPG is of a composition that it liquefies at low pressures. LNG is gas that's terribly cold in order that it becomes a liquid in order that tons are shipped during a tanker.
Industrial users additionally build solids into liquids for transport in pipelines. as an example, coal slurries area unit typically used. Coal is ground up into the mud, and mixed with water, and may then be pumped up through pipelines. There are different sorts of slurries, like wood chips/water in paper mills, sand/water mixture in dredging machines.
A) 7 g
B) 10 g
C) 30 g
D) 70 g
Answers
Answer:
b) 10 g
Explanation:
Hi, the answer in simply: during a chemical reaction (that doesn't involve nuclear processes) the total mass involved is constant.
The total mass of the reactants equals the total mass of the products, althought the number of molecules may vary.
n(2Fe2O3)=10g/319.374amu=0.03mol
n(4Fe+3O2)=0.03 mol
m(4Fe+2O2)=Mn=319.374×0.03=9.58=10
Answers
Answer:
2moles of H2
Explanation:
First, let us generate a balanced equation for the reaction between calcium and water. This is illustrated below:
Ca + 2H20 —> Ca(OH)2 + H2
From the equation,
2moles of H2O produced 1mole of H2.
Therefore 4moles of H2O will produce = 4/2 = 2moles of H2.
Answers
The definition of solubility is the maximum quantity of solute that can dissolve in a certain quantity of solvent or quantity of solution at a specified temperature or pressure (in the case of gaseous solutes). For Gases, solubility decreases as temperature increases (duh...you have seen water boil, right?) The physical reason for this is that when most gases dissolve in solution, the process is exothermic. This means that heat is released as the gas dissolves. This is very similar to the reason that vapor pressure increases with temperature. Increased temperature causes an increase in kinetic energy. The higher kinetic energy causes more motion in the gas molecules which break intermolecular bonds and escape from solution. Do you need any more?