Answer these questions in not less than 3 sentences.  How is the quantity of a gas related to those of other substances in a balanced equation? How would you describe the properties of gases in terms of molecular behavior?

Q: Polychlorinated biphenyl (PCBs) are environmental contaminants composed of carbon, hydrogen, and…

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Q: Subject: chemistry

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Q: What does it mean when it says "Chemical reaction changes the actual chemical itself."

A: Given: "Chemical reaction changes the actual chemical itself".

Q: Write the balanced COMPLETE ionic equation for the reaction when aqueous aluminum nitrate and…

A: Ionic equation involves all the ions of the reactants along with the product and ions on the product…

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: Select all the true statements about the reaction shown below.  NaCl → Na + ClNaCl → Na + Cl…

A: Solution- Option 1st correct Sodium chloride there is a reactant which is after reaction divided…

Q: created Is NH, being created or destroyed by the chemical reaction? destroyed neither created nor…

A: Given:

Q: Aqueous hydrochloric acid (HCI) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: 0.969 molar NaOH. Analysis of the collected data resulted in a heat transfer of 2797 J during…

A: The question is based on the calculation of heat of neutralization. we are reacting a strong acid…

Q: Using CER and your knowledge from data listed above, if the temperature of ethanol solution…

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Q: CALCULATIONS Answer the following in Question 1-2 involves the same process three different times.…

A: The objective of the first question is to convert the mass of NaHCO3 into moles. The molar mass of…

Q: When nitrogen gas reacts completely with hydrogen gas, the resulting compound is gaseous ammonia.…

A: A chemical equation which contains same number of atoms on both reactant and product side is called…

Q: In the figure shown, is a chemical reaction occurring? -> No, because there are the same number of…

A: According to the Dalton atomic theory, the atom is the smallest particle of a substance and it…

Q: Suppose an EPA chemist tests a 250. mL sample of groundwater known to be contaminated with iron(III)…

A: Silver chloride(AgCl) is insoluble in water and forms white precipitate. Using this feature,  AgNO3…

Q: What volume of hydrogen sulfide is required to react with 21.7 liters of oxygen gas according to the…

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Q: Adding helium to a balloon increased its volume from 309.1 mL to 1.695 L. If the final number of…

A: Given data,  Initial volume of helium gas in the balloon ( V1) = 309.1 mL = (309.1/1000) L = 0.3091…

Q: Substances:  1.Burning of Matches 2. Candle wick in burning of candle  3. Table Salt dissolved in…

A: Chemical Change : chemical change occur when a substance combined with another substance to form a…

Q: Write the balanced chemical equation for the chemical reaction that occurs when Sulfuric Acid is…

A: Precipitate does not dissolve in water so precipitate can not make ions.

Q: What is a chemical equation? Provide an example and identify the reactants and products

A: Chemical equation = Chemical reaction is an symbolic representation of the chemical reactions in the…

Q: Write the balanced equation for the decomposition of potassium chlorate and potassium chloride…

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Q: Here is a graph of the molarity of ethanol (C,H¸OH) in a reaction vessel during a certain chemical…

A: The concentration v/s time curve of ethanol is given as,

Q: Stoichiometry and conversions allow chemists to plan and predict experiments. Give an example of how…

A: How stoichiometry and conversions can be used in a common activity like cooking. Let's say you are…

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: Elemental S reacts with O2 gas to form SO3 gas according to the reaction depicted here. (Figure 1)…

A: When solid sulfur reacts with oxygen gas then it forms sulfur dioxide(SO2) and also it can form…

Q: Table 1: Gas Collection Data for Mg and HCI Reaction Mass Mg (g) 0.040 g Volume HCl (mL) 10.00 mL…

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Q: 2. Suppose 0.250 kg of methane are burned in air at a pressure of exactly 1 atm and a temperature of…

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Q: What mass of a 6.0% NaOH solution contains 12 grams of NAOH? Enter your answer in grams in the space…

A: The mass of solute in gram present in 100 g solution is known as the mass percent concentration of a…

Q: Mixtures and compounds vary in composition with the latter having a 1) compound. The components of a…

A: A mixture is a physical combination of two or more substances. For example, water and salt.

Q: There is a double displacement between calcium carbonate and hydrogen chloride to yield calcium…

A: Solution: We know calcium carbonate is basic in nature,so react with Acid HCl. CaCO3 + HCl =>…

Q: Write a balanced chemical equation based on the following description: Solid sulfur and oxygen gas…

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Q: 10 g of Barium hydroxide is added to 500 mL of solution of 1 Molar solution sulfuric acid.  (Hint…

A: The reaction of an acid and a base is called a neutralization reaction. Although acids and bases…

Q: percent of carbon dioxide in the sample?

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Q: Change the following word equation into chemical equation. Write a complete balanced equation for…

A: Chemical Change - It is a type of change in which a new product is formed which is not reversible.

Q: Combustion of hydrocarbons such as undecane (C11 H₂4) produces carbon dioxide, a "greenhouse gas."…

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Q: You are a student in Mrs. Bateast's Chemistry class and you were given the assignment to compare…

A: The solubility of a compound is increased by increasing temperature. It would continue up to the…

Q: 5. Sodium Bicarbonate + Hydrochloric Acid Sodium Chloride + water + Carbon Dioxide - 7. Calcium…

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Q: Nitrogen trioxide gas and nitrogen dioxide gas combine to produce dinitrogen pentoxide gas . Write…

A: To balance the chemical equation, the same atoms on the reactant side (left side of the chemical…

Q: Change the following word equation into chemical equation. Write a complete balanced equation for…

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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…

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".