If one gallon of gasoline contains about 2.0 g of lead, how much lead (in kg) is emitted into the atmosphere from a car that travels 10,000. miles a year and averages 25 miles per gallon of gasoline?

Q: Assuming that the shape of atoms is spherical, what is the diameter (in angstroms) of an atom that…

A: A multiple choice question based on atomic structure, which is to be accomplished.

Q: Ammonium perchlorate (NH4CIO4) is the solid rocket fuel that was used by the U.S. Space Shuttle and…

A: Amount of ammonium perchlorate= 6.3gWe have to  calculate mass of oxygen.

Q: Part C How many Rh atoms would have to be placed side by side to span a distance of 7.5 µm ? Express…

A: Atom is the smallest  unit of ordinary matter which forms a chemical  element.

Q: 5 g of anhydrous strontium nitrate is added to a beaker and exposed to the air. After several hours…

A: The percentage of water in hydrated sample is given as : Percentage of water = ( mass of water /…

Q: When 6.00 g of sulfur are combined with 6.00 g of oxygen, 12.00 g of sulfur dioxide (SO2) are…

A: Molecular mass of sulfur = 32 g /mol, means 32 g in 1 mol.Molecular mass of O2 = 32 g / mol, means…

Q: Hydrazine, N2H4, can be used as fuel to orient and maneuver spacecraft. The energy used to do so is…

A: (A) Writing down the balanced chemical equation: N2O4(l) + 2 N2H4(aq) ----> 3 N2(g) + 4 H2O(l)…

Q: Predict the product when the two substances mix. If the reaction occurs, write the balanced chemical…

A: A reaction is called balanced when number of atoms in reactant and product side are equal to each…

Q: Using a deuteron beam, a sample of isotopically enriched fluorine is generated, consisting of 18F…

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Q: A 1.50-g sample of Na2SxO6 contains 6.68 x1021 sodium ions. Determine the value of x.

A: Given details, The mass of Na2SxO6 = 1.50 g Then, Na2SxO6 has two sodium ions.  Na2SxO6 having 6.68…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: To find the relative atomic mass of Molybdenum let us use the equation, Where, A is the relative…

Q: Describe Thomson’s model of the atom. How might it account for the production of cathode rays?

A: To find: The Thomson's model of the atom.  How might it account for the production of cathode rays

Q: Discuss the link between these underlying physical/chemical properties and the environmental or…

A: A question based on environmental chemistry that is to be accomplished.

Q: How has the understanding of the structure of the atom changed over time? Briefly describe the…

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Q: A mass spectrometer is an instrument that allows scientists to determinethe presence of elements in…

A: The elements are arranged as the periodic function of atomic numbers.  The elements are arranged in…

Q: atoms

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Q: What is the edge length (in cmcm) of a titanium cube that contains 2.41×10242.41×1024 titanium…

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Q: Let's start by finding the location on the periodic table for the atoms for substances that conduct…

A: In general ionic compounds formed between metal and non metal conducts electricity when dissolved in…

Q: Complete the following chemical equations.a. Na(s) + H 2 O(l) →b. K(s) + H 2 O(l) →

A: The complete chemical equation has to be given.

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: We have been provided with data from mass-spectroscopic analysis, including the masses of ruthenium…

Q: Predict the products of the reaction below. That is, complete the right-hand side of the chemical…

A: We have been given an inorganic reaction and we have been asked the products.of given reaction.…

Q: Predict the products of the reaction below. That is, complete the right-hand side of the chemical…

A: The question is based on the concept of chemical reactions. we need to complete the reaction…

Q: A sample of 5.000 g of nitrogen can be combined with 5.714 g of oxygen to form nitric oxide gas…

A: The amount of products formed for the given quantity of reactants is determined using stoichiometry.…

Q: There are 1.699 x 1022 atoms in 1.000 g of chlorine.  Assume that chlorine atoms are spheres of…

A: Number of atoms in 1 g chlorine = 1.699 × 1022 atoms Number of atoms in 0.5 g chlorine = 0.5 × 1.699…

Q: The element xenon (Xe) was the last of the noble gases discovered by Sir William Ramsay, and the…

A: Given information: Atomic volume of argon = 22.56 cm3/mol Atomic volume of krypton = 27.99 cm3/mol

Q: The halogens are all in the same group. What is the pattern in reactivity as you go down group 7A?…

A: To  Does the reactivity increase or decrease, as we go down from F to CL to Br to I? How is this…

Q: A sample of solid silver oxide with a mass of 0.114 grams was reduced to elemental silver by heating…

A: Note - To calculate the mass percent of each elements in silver oxide, we should have the value for…

Q: If 4 Kg of Gallium (Ga) is reacted with 11 Kg of Nitrogen (N). what mass of GaN will be formed? The…

A: We have given 4 Kg = 4000 g of Gallium (Ga) which is reacted with 11 Kg = 11000 g of Nitrogen (N2).…

Q: What are the properties of Fluorine (F) Chlorine (Cl) Bromine (Br) Iodine (I)

A: Halogens: These are the elements that are present in the 17th group of the periodic table. The given…

Q: A sample of 7.000 g of nitrogen can be combined with 8.000 g of oxygen to form nitric oxide gas…

A: In NO, the ratio of moles of N and O is = N : O = 1 : 1. Hence 1 mole of NO contains 1 atom of N and…

Q: The element G has an atomic number less than 30. Its highest oxidation state is +6 and its ions are…

A: The atomic number of the element is less than 30. The highest oxidation state is +6 and colored.

Q: Rank the masses of the elements from lightest to heaviest. To rank items as equivalent, overlap…

A: Atomic masses of the elements: B : 11 u Cr: 52 u Li: 7 u

Q: 21. Based on your understanding of the relationships between the structures and physical properties…

A: Metals have high melting point. Generally metals are hard except Li, Na and K. Metals are soluble in…

Q: Calculate the amount of carbon (in moles) contained in a 2.65 g pencil “lead.” (Assume that the…

A: The mole is an amount unit similar to familiar units like pair, dozen, gross, etc. It provides a…

Q: As you move down a family (group) of the periodic table the size of atoms increases from period 2 to…

A: The long form of periodic table is the arrangement of all elements in the increasing order of their…

Q: When a 220 g sample composed of ibuprofen (C13H1802) and some inert material is added, the mass of…

A: The mass percentage of an element in a given compound is a measure of the amount of the element…

Q: Lic

A: Flame test is a qualitative determination of elements. When atoms are heated, electrons move from…

Q: Give two differences in chemical property between carbon or its compounds and the rest of the group…

A: CARBON IS DIFFERENT FROM OTHER ELEMENTS OF GROUP 4 AS This is the difference between carbon and one…

Q: Group 15 elements Answer these questions about the group 15 elements. (1) Within this group, bismuth…

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Q: Anhydrous CuSO4 is converted to CuSO4・xH2O to absorb water from certain liquids. What is the value…

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Q: What is the chemical formula for the compound formed between chromium(VI) and chlorine? chemical…

A: -> Ionic compounds are composed of a positive ion and a negative ion bonded together in a…

Q: When 4.00 g of sulfur are combined with 4.00 g of oxygen, 8.00 g of sulfur dioxide (SO2) are formed.…

A: Answer: 8.9808 g of oxygen is required to convert 6.00 g of sulphur into sulphur trioxide.

Q: 4. Look up the properties of iron, barium, and phosphorus. Explain why nails are made of iron but…

A: Iron is  a hard metal . It shows various properties like malleability ( transform into thin sheets),…

Q: Write the chemical reaction to explain Kolbe’s reaction.

A: A chemical reaction in which two or more species on combination give a large single product named an…