How is the mass of oxygen measured? Group of answer choices By taking the sum of the potassium chlorate mass and potassium chloride mass. By taking the difference of the potassium chlorate mass and the crucible and lid mass. By taking the difference of the potassium chlorate mass and potassium chloride mass. By measuring the mass after the final heating and subtracting the crucible and lid mass.

Q: balance the following chemical reaction by placing the correct coefficients. magnesium reacts…

A: To balance the chemical reaction:Therefore, the balanced chemical reaction is given as

Q: Large amounts of titanium metal are refined by reacting titanium(III) chloride solution with…

A: Given mass of Mg=1.46kg Given mass of Ti=1.62kg

Q: what pieces of evidence are present during synthesis, decomposition, single replacement, and double…

A: Composition or synthesis reactions produce a single substance from multiple reactants. A single…

Q: Aqueous solutions of magnesium nitrate and sodium phosphate are mixed together, forming solid…

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: 22. Be able to solve one-step and multi-step problems involving moles, mass, and a balanced chemical…

A: Answer: 399.26 g of NaBr is formed.

Q: A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 6.66 mL sample taken…

A: Given data,Volume of H2SO4=6.66mLVolume of water=50mLMolarity of NaOH=0.4643MVolume of NaOH=31.52mL

Q: A green solution of a pH indicator was added to a sample of spring water. The resulting solution was…

A: A chemical change is an irreversible change that takes place due to a chemical reaction. A chemical…

Q: What is the "law of conservation of mass" and explain how it relates to why must chemical equations…

A: The ‘law of conservation of mass’ says that mass in an isolated system is neither created nor…

Q: A bottle of chemical was found in a stockroom with part of its label torn off. Preliminary tests…

A: A precipitation reaction is the condensation of insoluble salt when two solutions containing soluble…

Q: Determine the mass of CaSO4 in the sample based on the following data to two decimal places mass of…

A: When the sample is heated the water present in the sample is evaporated and anhydrous CaSO4 is…

Q: Write a balanced molecular equation describing each of the following chemical reactions. You may use…

A: Water vapour is the water in a vapour state, thus the phase of water vapour is gas. Sodium is an…

Q: will

A:

Q: Solid calcium oxide reacts with carbon dioxide gas to produce solid calcium carbonate (CaCO3).…

A: Balanced chemical equation: Balanced chemical equation can be defined as the reaction in which…

Q: Nitric acid is a component of acid rain that forms when gaseous nitrogen dioxide pollutant reacts…

A: when aqueous nitric acid is fall with rain known as acid rain which is harmful to the environment.

Q: A mixture consisting of only sodium chloride (NaCI) and potassium chloride (KCI) weighs 1.0000 g.…

A:

Q: Write a balanced equation for the reaction between solid lead(III) oxide and solid carbon to produce…

A: The given reaction is the reaction between solid lead(II) oxide and solid carbon produce solid lead…

Q: You are heating potassium perchlorate and collecting the oxygen gas from the decomposition over…

A: potassium perchlorate is KClO3 On heating all the oxygen will be removed .

Q: Large amounts of titanium metal are refined by reacting titanium(III) chloride solution with…

A:

Q: The new substances formed during a chemical reaction are known as

A: A chemical reaction is the process in which atoms present in the starting substances rearrange to…

Q: One molecule of sulphur contains 8 sulphur atoms. How many sulphur molecules can be made from 104…

A: Given:no of atoms in sulphur molecule = 8 atomtotal no. of sulphur atom = 104 atoms.

Q: Calcium phosphate (Ca3(PO4)2) is a chemical that can be added during water treatment and the…

A: Mass of Ca3(PO4)2 = 37 g = mpercentage purity = 94 %Actual mass of Ca3(PO4)2 = M

Q: 158 g of aluminum sulfide reacts with water to form aluminum hydroxide and hydrogen sulfide.…

A: Applying concept of limiting reagent and mole concept.

Q: For each of the fallowing find a balanced reaction that involves all elements in their natural…

A: The objective of the question is to write the balanced chemical reactions for each given element in…

Q: The reaction between zinc and hydrochloric acid is gas in the laboratory: Zn(s) + 2 HCl(aq)…

A: The given balanced chemical equation is .The volume of hydrogen gas collected is .The temperature is…

Q: 2. Calcium carbonate, when heated strongly in an open test tube, decomposes to yield both the…

A: Given : Reactant = Calcium carbonate.                      Products = calcium oxide and carbon…

Q: Does the total mass of the reactants and the total mass of the products appear to be equal after…

A: Yes, the total mass of reactants before chemical reaction and total mass of products after chemical…

Q: Write a balanced chemical equation for solid iron(III) oxide reacts with carbon monoxide gas to form…

A: To balance a chemical equation, coefficients of numbers are used.  A coefficient is placed in front…

Q: Solve the ideal gas equation for both molarmass(MM) and density. Let's do this in a series of steps.…

A: GivenIdeal gas equationSolve it for n = No of moles PV = To be determined Molar Mass = To be…

Q: solid mercury (II) oxide decomposes when heated forming liquid mercury and oxygen gas as the only…

A: Often while calculating, there is a need to convert units from one system to another system. The…

Q: hydrogen reacts with chlorine to form gaseous hydrogen chloride. Write a balanced chemical equation…

A: Given: Hydrogen reacts with chlorine to form gaseous hydrogen chloride.

Q: Balance and complete the following combustion reaction. Enter the sum of the balanced coefficients…

A: Chemical reactions are those reactions which undergo any chemical change. Chemical reaction is…

Q: Balance and complete the following combustion reaction. Enter the sum of the balanced coefficients…

A: Reactions in which the number of atoms of the reactants and the products are equal or is balanced is…

Q: If you are to compare decantation and filtration as separation processes, which do you think is more…

A: Filtration is method to separate a mixture of a solid in a liquid or a solid in a gas.