Platinum is an expensive and rare metal used in catalytic converters. Much research has been devoted to maximizing reactive properties of other less expensive metals by reducing their size to the nanoscale. Smaller particles are more reactive because they have a larger surface area to volume ratio. Which type of atom in a nanoparticle is more reactive? An atom on the surface of a particle An atom in the interior of a particle The location of an atom in the nanoparticle does not influence its reactivity

Q: Ammonia can also be synthesized by the reaction: 3H2 (g) + N2(g) → 2NH3(g) What is the theoretical…

A: Given, Mass of H2 = 5.22 kg = 5220 g     (1 kg = 1000 g) Mass of N2 = 31.5 kg = 31500 g

Q: P.S. 6. A miner was digging up some ore (rock). The ore contains 84% lead(II) sulfide by mass. How…

A:

Q: Use the following information to answer questions 3.2, 3.3, and 3.4.Calcium phosphide (Ca3P2) and…

A: Solution- Ca3P2(s) +6 H2O(l) →3Ca(OH)2(aq) +2 PH3(g)(a)-by the above given reaction 1mole of Ca3P2…

Q: The concept of determining which reactant is limiting and which is in excess is akin to determining…

A: Given:Number of bread slices = 36 slicesNumber of cheese slices = 45 slices1 sandwich = 2 slices of…

Q: While idly tossing a baseball from hand to hand one day, your friend Yolanda (an expert chemist)…

A: Given statement is  "Metal sulfides react with strong acids to produce hydrogen sulfide and a salt"…

Q: What is the difference between a reactant and a product?

A: The substance that is present left side of the arrow in a chemical reaction are called reactant and…

Q: Now it's your turn to make the beaker drawings for one of the chemical reactions you observed…

A: The correct answer is given below

Q: 5 B. A student writes the following incorrect chemical equation for a single replacement reaction…

A: Hi, since you have posted multiple questions, we will answer the very first question for you. Kindly…

Q: chemistry balanced equations mg (s) + o2 (g) ➜ mgo5 (aq)

A: Balanced chemical equation contain equal number of atoms of each elements on both sides of the…

Q: What is the difference between a reactant and products?

A: Reactants are the substance/compound that are present at the starting of the chemical reaction and…

Q: reaction is: Co(s) + HgCl (aq) → COCI(aq) + Hg(1)

A: Given , Mass of Co = 1.25 g Molar mass of Co = 59.0 g/mol Molar  mass of Hg = 200 g/mol Mole =…

Q: The reaction between nitrogen and oxygen is given below: N2(g) + 2 O2(g) → 2 NO2(g) We therefore…

A: Answer:- This question is answered by using the simple concept of a chemical reaction. In the given…

Q: 5. Balance the following chemical equations. a) SnS2(s) + O₂(g) → SnO₂(s) + SO₂(g) b) C₂Hs(g) +…

A: we have to balance the given equations

Q: Is the decomposition of CuSO4· 5 H2O a physical or a chemical change? Why?

A: The copper sulfate penthydrate dehydrates to form the clear, anhydrous copper sulfate.

Q: Let's say you are working in a laboratory with a group and you are the only student who has taken…

A: According to given information, Mass of unknown hydrate CoCl2. XH2O = 33.92 g - 32.27 g = 1.65  g…

Q: The following reaction describes the production of elemental sulfur. Calculate the mass of elemental…

A: Given- Weight of dihydrogen sulphide =15.39 g  H2S(g)+O2(g) -> S8(s) + H2O(g)

Q: If atoms of the metal magnesium were to react with molecules of the nonmetal fluorine, F2 , how many…

A: Concept: In a reaction of metals with non-metals, there is transfere of electrons take place from…

Q: Hydrates take the form: compound·nH2O. An unknown hydrate has a molar mass of 446 g/mol.  If the…

A:

Q: Which reactant is the limiting reactant? O NO Which reactant is in excess? O2 O NO

A: The correct options are as follows:

Q: What is the significance of 'atom economy'? How is this value calculated for a chemical reaction?

A:

Q: What is the percent yield for this reaction under the given conditions? Express your answer to three…

A:

Q: When magnesium hydroxide reacts with nitric acid, it produces magnesium nitrate and water. Mg(OH)2 +…

A: The given balanced equation is :-  Mg(OH)2 + 2HNO3 → Mg(NO3)2 + 2H2O

Q: Suppose a pair of chemical compounds A and B can react in two different ways: A+B C Reaction 1 gives…

A: Answer:Energy profile gives the thermodynamic representation of the rectant's conversion into…

Q: Balance the equation below, which uses imaginary elements (they still follow the usual convention –…

A:

Q: To which one of the following reactions represents the formation of HNO3(1)? OA. HNO3(1)→H(g) + N(g)…

A: The standard enthalpy of formation is defined as the change in enthalpy when one mole of a substance…

Q: 3 SrCl2 (aq) +2 Au(OH)=

A: 1) In first reaction S8 combine with O2 give single Compound. Called combination reaction. Reaction…

Q: For each of the following reactions, translate formulas and symbols into words. Be sure to account…

A: Chemical equation is a symbolic representation of a chemical reaction in which the reactants and…

Q: Lithium faces an increasing demand since the alkali metal is a key component in a lithium- ion…

A: Given  Number of moles of lithium = 5.40 mol we have to calculate the weight of lithium. Molar mass…

Q: Solid calcium chloride is formed by the reaction of chlorine gas and solid calcium . Write a…

A:

Q: Use the Conservation of Mass Interactive to answer the question. Consider the reaction. MnS(s) + 2…

A: Here, given reaction is , MnS(s) + 2 HCl(aq) -----> MnCl2(aq) + H2S(aq)   • We can say by the…

Q: Blast furnaces extract pure iron from the iron(III) oxide in iron ore in a two step sequence. In the…

A: It is given that pure iron can be extracted from the ore of iron (III) oxide in two steps.The first…

Q: One way to analyze for the amount of phosphorus in a rock is to precipitate the phosphorus as…

A: Given the mass of the rock sample = 2.832 g Percent of Ca3(PO4)2 = 86.52% => mass of Ca3(PO4)2 in…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".