Asked by ryan
is C3H8O2+4H2O+3CO2 balanced
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ryan
is C3H8O2=4H2O+3CO2 balanced
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ryan
The molar mass of SO2 is 60.09 g/mol. How many molecules of silicon dioxide (SiO2) are there in 45.0 grams of silicon dioxide?
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If 64.0 grams of methane (CH4) react completely with oxygen (O2), how many grams of water will be produced?
The molar mass of methane(CH4) is 16 g/mol. The molar mass of water (H2O) is 18 g/mol.
The molar mass of methane(CH4) is 16 g/mol. The molar mass of water (H2O) is 18 g/mol.
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ryan
Which type of decay is a form of nuclear fission?
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when one molecule of fe2o3 reacts with 3 molecules of SO3 how many atoms of (Fe), (O), (S) are in the products of the reaction
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Which statement is the best description of the kinetic energy found in molecules of water at different temperatures?
Water molecules at colder temperatures have less kinetic energy,
Water molecules at hotter temperatures have less kinetic energy,
The temperature does not affect the kinetic energy of the water molecules.
Water molecules at colder temperatures have less kinetic energy,
Water molecules at hotter temperatures have less kinetic energy,
The temperature does not affect the kinetic energy of the water molecules.
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A target is shielded from a radioactive sample by a thin sheet of aluminum metal. What kind of radiation can pass through the sheet of aluminum metal and hit the target?
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How many moles of nitrogen are needed to react with 18.25 mol of hydrogen?
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Calculate the molar mass of tetraphosphorous hexoxide. P4O6. (The molar mass of Phosphorous is 31 g/mol. The molar mass of Oxygen is 16 g/mol.)
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For a chemical reaction to occur, bonds must be broken and formed. Which statements below are TRUE of this process? Choose the 2 correct statements.
The bonds of the reactants must be broken; this releases energy to the surroundings.
The bonds of the products must be formed; this requires energy to be absorbed from the surroundings.
The bonds of the products must be formed; this releases energy to the surroundings.
The bonds of the reactants must be broken; this requires energy to be absorbed from the surroundings.
The bonds of the reactants must be broken; this releases energy to the surroundings.
The bonds of the products must be formed; this requires energy to be absorbed from the surroundings.
The bonds of the products must be formed; this releases energy to the surroundings.
The bonds of the reactants must be broken; this requires energy to be absorbed from the surroundings.
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Yes, it is balanced.
C3H8O2 + 4H2O + 3CO2 → 3C3H4O3 + 4H2O
C3H8O2 + 4H2O + 3CO2 → 3C3H4O3 + 4H2O
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No, this equation is not balanced.
C3H8O2 = 4H2O + 3CO2
To balance it, we need to equalize the number of atoms on both sides of the equation.
C3H8O2 + 5O2 = 4H2O + 3CO2
Now the equation is balanced.
C3H8O2 = 4H2O + 3CO2
To balance it, we need to equalize the number of atoms on both sides of the equation.
C3H8O2 + 5O2 = 4H2O + 3CO2
Now the equation is balanced.
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We need to start by calculating the number of moles of SiO2 present in 45.0 grams of SiO2:
Moles of SiO2 = Mass of SiO2 / Molar mass of SiO2
Moles of SiO2 = 45.0 g / 60.08 g/mol = 0.749 moles
Next, we can use Avogadro's number to calculate the number of SiO2 molecules present in 0.749 moles:
Number of SiO2 molecules = Moles of SiO2 x Avogadro's number
Number of SiO2 molecules = 0.749 mol x 6.022 x 10^23 molecules/mol
Number of SiO2 molecules = 4.509 x 10^23 molecules
Therefore, there are approximately 4.509 x 10^23 molecules of SiO2 in 45.0 grams of SiO2.
Moles of SiO2 = Mass of SiO2 / Molar mass of SiO2
Moles of SiO2 = 45.0 g / 60.08 g/mol = 0.749 moles
Next, we can use Avogadro's number to calculate the number of SiO2 molecules present in 0.749 moles:
Number of SiO2 molecules = Moles of SiO2 x Avogadro's number
Number of SiO2 molecules = 0.749 mol x 6.022 x 10^23 molecules/mol
Number of SiO2 molecules = 4.509 x 10^23 molecules
Therefore, there are approximately 4.509 x 10^23 molecules of SiO2 in 45.0 grams of SiO2.
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We can start by writing the balanced chemical equation for the combustion of methane with oxygen:
CH4 + 2O2 → CO2 + 2H2O
This equation tells us that one molecule of methane reacts with two molecules of oxygen to produce one molecule of carbon dioxide and two molecules of water.
Using the molar mass of methane, we can convert 64.0 grams of methane to moles:
Number of moles of CH4 = Mass of CH4 / Molar mass of CH4
Number of moles of CH4 = 64.0 g / 16.0 g/mol = 4.00 mol
From the balanced equation, we can see that two molecules of water are produced for every molecule of methane that reacts. So for 4.00 moles of methane, we can expect to produce:
Number of moles of H2O = 2 x Moles of CH4
Number of moles of H2O = 2 x 4.00 mol = 8.00 mol
Finally, we can convert the number of moles of water to grams using the molar mass of water:
Mass of H2O = Number of moles of H2O x Molar mass of H2O
Mass of H2O = 8.00 mol x 18.0 g/mol = 144 g
Therefore, if 64.0 grams of methane react completely with oxygen, 144 grams of water will be produced.
CH4 + 2O2 → CO2 + 2H2O
This equation tells us that one molecule of methane reacts with two molecules of oxygen to produce one molecule of carbon dioxide and two molecules of water.
Using the molar mass of methane, we can convert 64.0 grams of methane to moles:
Number of moles of CH4 = Mass of CH4 / Molar mass of CH4
Number of moles of CH4 = 64.0 g / 16.0 g/mol = 4.00 mol
From the balanced equation, we can see that two molecules of water are produced for every molecule of methane that reacts. So for 4.00 moles of methane, we can expect to produce:
Number of moles of H2O = 2 x Moles of CH4
Number of moles of H2O = 2 x 4.00 mol = 8.00 mol
Finally, we can convert the number of moles of water to grams using the molar mass of water:
Mass of H2O = Number of moles of H2O x Molar mass of H2O
Mass of H2O = 8.00 mol x 18.0 g/mol = 144 g
Therefore, if 64.0 grams of methane react completely with oxygen, 144 grams of water will be produced.
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Nuclear fission is not a form of decay, it is a process that is distinct from radioactivity.
Nuclear fission is the process of splitting an atomic nucleus into two or more smaller nuclei, along with the release of a large amount of energy. This process is usually induced by bombarding a nucleus with neutrons, which causes it to become unstable and break apart.
In contrast, radioactive decay refers to the spontaneous breakdown of an unstable atomic nucleus into smaller nuclei, with the emission of particles (such as alpha or beta particles) or photons (gamma rays).
So, neither alpha decay, beta decay, gamma decay, nor any other type of radioactive decay is a form of nuclear fission.
Nuclear fission is the process of splitting an atomic nucleus into two or more smaller nuclei, along with the release of a large amount of energy. This process is usually induced by bombarding a nucleus with neutrons, which causes it to become unstable and break apart.
In contrast, radioactive decay refers to the spontaneous breakdown of an unstable atomic nucleus into smaller nuclei, with the emission of particles (such as alpha or beta particles) or photons (gamma rays).
So, neither alpha decay, beta decay, gamma decay, nor any other type of radioactive decay is a form of nuclear fission.
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Here's a balanced chemical equation for the reaction of 1 molecule of Fe2O3 with 3 molecules of SO3:
Fe2O3 + 3SO3 → Fe2(SO4)3
From this equation, we can see that the products of the reaction are Fe2(SO4)3, which contains iron, sulfur, and oxygen. We can use the equation to determine how many atoms of each element are present in the product:
- Iron (Fe): There are 2 Fe atoms on the left-hand side of the equation and 2 Fe atoms on the right-hand side, so the total number of Fe atoms in the products is 2.
- Oxygen (O): There are 3 O atoms in 1 molecule of Fe2O3 and 12 O atoms in 3 molecules of SO3. There are 12 O atoms in the product molecule Fe2(SO4)3, so the total number of O atoms in the products is 3 + 12 = 15.
- Sulfur (S): There are 3 S atoms in 3 molecules of SO3, and they combine with the Fe atoms to form Fe2(SO4)3. Therefore, there are also 3 S atoms present in the products.
So the final answer is: There are 2 Fe atoms, 15 O atoms, and 3 S atoms in the products of the reaction.
Fe2O3 + 3SO3 → Fe2(SO4)3
From this equation, we can see that the products of the reaction are Fe2(SO4)3, which contains iron, sulfur, and oxygen. We can use the equation to determine how many atoms of each element are present in the product:
- Iron (Fe): There are 2 Fe atoms on the left-hand side of the equation and 2 Fe atoms on the right-hand side, so the total number of Fe atoms in the products is 2.
- Oxygen (O): There are 3 O atoms in 1 molecule of Fe2O3 and 12 O atoms in 3 molecules of SO3. There are 12 O atoms in the product molecule Fe2(SO4)3, so the total number of O atoms in the products is 3 + 12 = 15.
- Sulfur (S): There are 3 S atoms in 3 molecules of SO3, and they combine with the Fe atoms to form Fe2(SO4)3. Therefore, there are also 3 S atoms present in the products.
So the final answer is: There are 2 Fe atoms, 15 O atoms, and 3 S atoms in the products of the reaction.
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The best statement describing the kinetic energy found in molecules of water at different temperatures is:
Water molecules at hotter temperatures have more kinetic energy.
This statement is consistent with the definition of temperature as a measure of the average kinetic energy of the molecules in a substance. As the temperature of a substance increases, the average kinetic energy of the molecules increases, meaning that they move faster and more vigorously. At colder temperatures, the average kinetic energy of the molecules in water is lower, meaning that they move more slowly and with less energy.
Water molecules at hotter temperatures have more kinetic energy.
This statement is consistent with the definition of temperature as a measure of the average kinetic energy of the molecules in a substance. As the temperature of a substance increases, the average kinetic energy of the molecules increases, meaning that they move faster and more vigorously. At colder temperatures, the average kinetic energy of the molecules in water is lower, meaning that they move more slowly and with less energy.
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The type of radiation that can most likely pass through the sheet of aluminum metal and hit the target depends on the type of radioactive source and the energy of the radiation.
If the radioactive source emits alpha particles, the thin sheet of aluminum metal can block them effectively due to their large size and high positive charge.
If the radioactive source emits beta particles or gamma rays, the thin sheet of aluminum metal can reduce the intensity of the radiation but may not be able to completely block it. Beta particles are negatively charged electrons, which are relatively small and can penetrate thin layers of metal. Gamma rays are high-energy photons that can penetrate most materials, including thick layers of metal, depending on their energy.
Therefore, it is possible that beta particles or gamma rays can pass through the thin sheet of aluminum metal and hit the target. However, the degree of penetration and shielding effectiveness will depend on the energy of the radiation and the thickness of the aluminum sheet.
If the radioactive source emits alpha particles, the thin sheet of aluminum metal can block them effectively due to their large size and high positive charge.
If the radioactive source emits beta particles or gamma rays, the thin sheet of aluminum metal can reduce the intensity of the radiation but may not be able to completely block it. Beta particles are negatively charged electrons, which are relatively small and can penetrate thin layers of metal. Gamma rays are high-energy photons that can penetrate most materials, including thick layers of metal, depending on their energy.
Therefore, it is possible that beta particles or gamma rays can pass through the thin sheet of aluminum metal and hit the target. However, the degree of penetration and shielding effectiveness will depend on the energy of the radiation and the thickness of the aluminum sheet.
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The balanced chemical equation for the reaction of nitrogen (N2) and hydrogen (H2) to form ammonia (NH3) is:
N2 + 3H2 → 2NH3
From the equation, we can see that 1 mole of N2 reacts with 3 moles of H2 to produce 2 moles of NH3. Therefore, if we know the number of moles of H2, we can calculate the number of moles of N2 required using stoichiometry.
In this case, if 18.25 moles of H2 are consumed in the reaction, we can calculate the number of moles of N2 required as follows:
Number of moles of N2 = (1/3) x number of moles of H2
Number of moles of N2 = (1/3) x 18.25 mol
Number of moles of N2 = 6.083 mol
Therefore, 6.083 moles of N2 are needed to react with 18.25 mol of H2.
N2 + 3H2 → 2NH3
From the equation, we can see that 1 mole of N2 reacts with 3 moles of H2 to produce 2 moles of NH3. Therefore, if we know the number of moles of H2, we can calculate the number of moles of N2 required using stoichiometry.
In this case, if 18.25 moles of H2 are consumed in the reaction, we can calculate the number of moles of N2 required as follows:
Number of moles of N2 = (1/3) x number of moles of H2
Number of moles of N2 = (1/3) x 18.25 mol
Number of moles of N2 = 6.083 mol
Therefore, 6.083 moles of N2 are needed to react with 18.25 mol of H2.
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To calculate the molar mass of tetraphosphorus hexoxide, we need to add up the atomic masses of all the atoms in one mole of the compound.
The chemical formula P4O6 tells us that there are 4 phosphorus atoms and 6 oxygen atoms in one mole of the compound.
The molar mass of P4O6 can be calculated as follows:
Molar mass = (4 x molar mass of P) + (6 x molar mass of O)
Molar mass = (4 x 31 g/mol) + (6 x 16 g/mol)
Molar mass = 124 g/mol + 96 g/mol
Molar mass = 220 g/mol
Therefore, the molar mass of tetraphosphorus hexoxide (P4O6) is approximately 220 g/mol.
The chemical formula P4O6 tells us that there are 4 phosphorus atoms and 6 oxygen atoms in one mole of the compound.
The molar mass of P4O6 can be calculated as follows:
Molar mass = (4 x molar mass of P) + (6 x molar mass of O)
Molar mass = (4 x 31 g/mol) + (6 x 16 g/mol)
Molar mass = 124 g/mol + 96 g/mol
Molar mass = 220 g/mol
Therefore, the molar mass of tetraphosphorus hexoxide (P4O6) is approximately 220 g/mol.
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The two correct statements are:
- The bonds of the reactants must be broken; this requires energy to be absorbed from the surroundings.
- The bonds of the products must be formed; this releases energy to the surroundings.
In a chemical reaction, the reactants must collide with enough energy to break their existing bonds so that new bonds can be formed between the atoms to produce the products. This process requires an input of energy, which can come from the surroundings or from an external source.
Once the old bonds are broken, new ones can be formed between the atoms to make the products. This process releases energy, which can be absorbed by the surroundings or released in the form of light, heat, or other forms of energy.
- The bonds of the reactants must be broken; this requires energy to be absorbed from the surroundings.
- The bonds of the products must be formed; this releases energy to the surroundings.
In a chemical reaction, the reactants must collide with enough energy to break their existing bonds so that new bonds can be formed between the atoms to produce the products. This process requires an input of energy, which can come from the surroundings or from an external source.
Once the old bonds are broken, new ones can be formed between the atoms to make the products. This process releases energy, which can be absorbed by the surroundings or released in the form of light, heat, or other forms of energy.
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