A student adds 15g of baking soda to 10 g of acetic acid in a beaker. A chemical reaction occurs and a gas is given off. After the reaction, the mass of the products remaining in the beaker is 23g. Has mass been conserved in this reaction? Explain

Q: A 0.181 g piece of solid aluminum reacts with gaseous oxygen from the atmosphere to form solid…

A: The reaction of aluminum with gaseous oxygen can be expressed as,                        4 Al + 3 O2…

Q: What is the % by mass of a silver ring that has a mass of 12.0 g and contains 11.1 g pure silver?

A: Mass percentage of a compound represents the mass of solute present in a given mass of compound. It…

Q: Classify the following as physical or chemical change: When a solution of concentrated HCl(aq) is…

A: For question 3, we have to find the whether the addition of concentrated HCl(aq) to water is a…

Q: What is being represented by the picture below? * a mixture of compounds being physically separated…

A: 1.) To determine the nature of change , we would see what type of substance are on left side and…

Q: Yeast converts glucose to ethanol and carbon dioxide during anaerobic fermentation as depicted in…

A: The fermentation of glucose involves the reaction

Q: In an experiment, 10.00 g of red mercury(II) oxide powder is placed in an open flask and heated…

A: In this problem e have to find the mss of oxygen formed by using the law of conservation of mass.…

Q: A bank teller is asked to assemble $1 sets of coins forhis clients. Each set is made up of three…

A: Given that : Set of coins =6 coins that are three quarters, one nickel, and two dimes. Mass of one…

Q: Diamond is a form of elemental carbon. Diamonds are weighed by carats, where 1 carat = 200 mg.…

A: Given data: Mass of 1 carat diamond = 200 mg Radius of 2.5 carat diamond = 3.24 mm

Q: Consider a 25.09 g cube of cadmium metal, an element which forms some of the most toxic salts known,…

A: The length of one side of cube = 1.45 cm

Q: A Canadian, driving in the U.S.A., fuels their car at a cost of L The current monetary exchange rate…

A:

Q: A cheap reliable fertilizer, NH4NO3, adds nitrogen to the soil. If you add 48.5g of fertilizer to…

A: In order to find the amount of nitogen added to the soil we first write down the given data: Mass of…

Q: A sample of sodium reacts completely with 0.142 kgkg of chlorine, forming 234 gg of sodium chloride.…

A: A)  Given :- mass of Cl2 = 0.142 kg or 142 g  Mass of NaCl formed = 234 g  To be calculated :-  Mass…

Q: 1. In a change, one kind of matter is turned into another. 2. A chemical reaction is accompanied by…

A: "Since there are multiple sub-parts in this question so I am solving only the first three sub-parts.…

Q: Mass of 20 popcorn kernels + container 4.26 g Mass of container 2.16 g Mass of popcorn kernels…

A: The number of moles of water lost can be found out from the mass of water lost. The number of moles…

Q: What mass of iron in the nail reacted with the water?

A:

Q: During product recovery and washing, sodium carbonate is required to neutralize the acid present.…

A: The reaction between sodium carbonate and Sulfuric acid will be as follows…

Q: Which term best describes carbon dioxide, CO2? a. an atom b. an element C. a homogeneous mixture d.…

A: A chemical compound is a chemical substance composed of many identical molecules composed of atoms…

Q: 4. Compare the total mass of the reactants with the total mass of the products: Total Mass of the…

A: Given reaction is,  K2CrO4 (aq) + Pb(NO3)2 (aq) →2KNO3 (aq) + PbCrO4 (s)

Q: The following picture represents.. Mixtures of elements Mixtures of compounds Molecules of elements…

A: What are the chemical species present in the following

Q: The scenes below represent atomic-scale views of three samples of matter: Describe each sample as an…

A: Matters are the substances that are made up of very small particles and are not able to seen by…

Q: How many conversion factor(s) can be found in the following statement? " Americans combined drive…

A: Conversion factors are the mathematical relations between one unit of a physical quantity to another…

Q: You will need grams of sodium chloride and mL of water.

A: Given :- mass of solution = 184 g                % w/w = 3.17 %  To be calculated :- mass of NaCl (…

Q: B. Essay- Read and answer the question below properly and correctly Which intensive physical…

A: An intensive property is one that does not depends upon the amount of the substance.

Q: You wish to prepare 211 grams of 16.6 % Mg(CH3CO0)2. You will need grams of magnesium acetate and mL…

A: Mass of solution is = 211 g Percent concentration of Mg(CH3COO)2 is = 16.6 % Density of water is =…

Q: An antacid tablet weighing 0.938 g contained calcium carbonate as the active ingredient, in addition…

A: We know that, according to the law of conservation of mass in a chemical reaction, the mass of the…

Q: In a reaction, 34.0g of chromium(III) oxide reacts with 12.1g of aluminum to produce chromium and…

A: 34.0g of chromium(III) oxide 12.1g of aluminum Both of these react to produce 23.3g of chromium and…

Q: A) Which term describes the conversion of substances into different substances? ionic bonding…

A: Conversion of one type of substances into other substances is take place through a reaction.

Q: A chemist has a 19.50g sample of drinking alcohol (ethyl alcohol). what is the volume ogf the…

A: The relationship between mass and volume is given below.

Q: Lipitor, a pharmaceutical drug that has been shown to lower "bad" cholesterol levels while raising…

A: Given  The mass of the 1 pill = 1.0g  Active ingredient contain in each pill = 5.5% i.e., (5.5/100)…

Q: When butane is combusted, it reacts with oxygen in the air and forms carbon dioxide and water. If…

A: Law of conservation of mass states that , mass can neither be created nor destroyed in a chemical…

Q: A 2.0-liter volume of hydrogen gas combined with 1.0 liter of oxygen gas to produce 2.0 liters of…

A: Step : 1             Does oxygen undergo a chemical or physical change?

Q: In your chemistry classes, you have probably learned that, in a chemical reaction, the mass of the…

A: A chemical reaction is that where one form of chemical substances converts into another form.

Q: what is the mass of calcium carbonate reacted?

A: Given, Mass of marble before reaction 3.0g Mass of marble after reaction 1.8g

Q: You wish to prepare 202 grams of 11.8 % Ba(OH)2. You will need _____ grams of barium hydroxide and…

A: Given:  Weight of solution = 202 gm  % by mass = 11.8 %  Density of water = 1.00 g/ml

Q: How do physical properties and chemical properties differ?

A: How the physical and chemical properties differ has to be given.

Q: Is the decomposition of copper(II) sulfate hydrate a physical change or a chemical change? Explain.

A: Given: Decomposition of copper (II) sulfate hydrate i.e. CuSO4·5H2O.

Q: Yeast converts glucose to ethanol and carbon dioxide during anaerobic fermentation as depicted in…

A: The fermentation reaction is glucose → ethanol + carbon dioxide  Amount of glucose fermented is 200g…

Q: 5) A student measures 10.5 mL of diethyl ether using a glass syringe. Given that the density of…

A: The question is based on the concept of physical chemistry. We have to calculate moles of ether…

Q: What is the all chemical properties

A: Characteristics which helps us to differentiate one substance from another are known as properties.…

Q: Franklin was performing an experiment by combining hydrochloric acid and sodium hydroxide. He…

A: In the experiment of Franklin, the mass of the reactant material is 35 g. But after the reaction,…

Q: A Kool-aid solution has sugar and flavoring as the solute and water as the solvent. If ice cubes of…

A: Solvent is water solute is sugar Effect of melting of ice on sugar molecules = ?

Q: Stainless steel is composed of iron, manganese, chromium, and nickel. If a 2.00 g sample was…

A:

Q: A medium sized carrot weight 61 g and contains 6 g of carbohydrate. What percent by mass of the…

A:

Q: A 5.00g sample of sand and salt is 75.0%w/w salt. How many grams of salt and sand are in the…

A: Mass percentage can be defined as the parts of a substance (A) per hundred parts of the total by…

Q: Determine whether the following statements describechemical or physical properties: (a) Oxygen…

A: Note: Since you have posted a question with multiple subparts, we will solve the first three…

Q: The following picture represents.. * 1 point O Mixtures of elements O Mixtures of compounds O…

A: Element is the purest form of the substance. The mixture of elements contain the same kind of atoms.…

Q: 4.25 x 1024 atoms N converted to grams

A: We have given the atoms of nitrogen = 4.25 × 1024 atoms Avogadro's constant = 6.022 × 1023…

Q: Which of the following is an element? Fe,(SO,), Li O2

A: The substances that have a tendency to occupy space are considered as matters. The matters can be…

Q: Classify the following materials as substances or mixtures:table salt, wood, mercury, air, water,…

A: Substances- these are the materials which have stable composition and properties throughout and can…

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".