The maximum energy needed for a reaction to occur is called the activation energy. Is this statement true or false? True False

Q: Listen Water is the most common amphoteric substance because it neither behaves as an acid nor as a…

A: Water is a universal solvent in which most of the substance are get dissolved due to the formation…

Q: Which of the following is the molar mass of nitroglycerin, C3H5(NO3)3? 227 g/mol 179 g/mol 199 g/mol…

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Q: The reaction AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) is a(n) O precipitation acid-base 000…

A: In a reaction when element takes the place of another element in a compound then this reaction is…

Q: Consider a sample of gas in a container on a comfortable spring day in Chicago, IL. The Celsius…

A: The relationship between the temperature, pressure, and volume of the initial and final state of an…

Q: Which of the following compounds has the highest boiling point O co NH₂ O CO₂ OCH4 At least two of…

A: The Boling point of a compound depends on the intermolecular forces present in between the…

Q: In soda pop, CO₂(g) is a solute; solvent solvent; solute solution; solute Osolute; solution solvent;…

A: we have to determine the nature of carbon dioxide and water in a soda pop and complete the given…

Q: Choose the state of water in which the water molecules are farthest apart on average. steam (vapor)…

A: Different states of matter can be interconverted by changing the temperature and pressure of the…

Q: A 59.5 g sample of aluminum at 95.0 °C is dropped into 35.0 g of water at 40.0 °C. What is the final…

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Q: True or false? Arrhenius postulated that acids produce hydrogen ions in aqueous solution, whereas…

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Q: You are given the following boiling point data. Which one of the liquids would you expect to have…

A: We are given a boiling point data of certain chemical compounds and asked to comment on the vapour…

Q: 15 18 1 10 Listen A solution is prepared by dissolving 106.3 g HCl(g) in enough water to make 175.0…

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Q: A compound has 40.68% carbon, 5.12% hydrogen, and 54.20% oxygen (by mass). Calculate its empirical…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: Determine the pressure exerted by 2.10 mol of gas in a 2.92-L container at 32°C. 1.89 atm 52.6 atm…

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Q: Which of the following processes is a physical change? Burning gasoline O Cooking an egg Decomposing…

A: Physical change: In a physical change only the state of matter changes. In this change different…

Q: Consider a gas at 1.00 atm in a 5.00-L container at 20. C. What pressure does the gas exert when…

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Q: A walker travels a distance of 1.4 miles. How many inches did the walker travel? (1 mi-5280. ft) (1…

A: Miles is the unit of distance it can be converted into another unit of distance by dimensional…

Q: Listen A solution has a pH of 3.99. The pOH of this solution is 04.09 9.91 13.99 10.01 none of these

A: Given Data -: We have given pH as -: 3.99  pH = -log(H+)  Here (H+ ) is concentration of H+ ion.

Q: Which of the following conversion factors is incorrect? 1 in/2,54 cm 1 yd/1.094 m 1 kg/2.205 lb 1…

A: The given question contains units of length and mass. We have to check whether each option given is…

Q: Which of the following is true of a system at equilibrium? a) No new product molecules are formed.…

A: A system is said to be at equilibrium, when both the forward and backward reaction takes place at…

Q: Which of the following is not soluble in water?

A: Given : name of compounds Tip : like dissolve like

Q: An atom has a valence shell electron configuration of ns np. To which group of metals in the…

A: Electrons are filled in a different atomic orbital in an atom. According to the Aufbau rule, the…

Q: If you mix 20.0 ml. of a 3.00 M sugar solution with 30.0 mL of a 5.63 M sugar solution, you will end…

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Q: O O The solubility of BaCO3(s) in water at a certain temperature is 3.9 x 10-5 mol/L. Calculate the…

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Q: Sort the images below to show which images depict the loss of an electron, which depict the gain of…

A: The below image represents the change of an atom to a positive ion. A positive ion is formed by the…

Q: Listen When 38.4 g of CH4 reacts completely with excess chlorine yielding 45.0 g of CHSCL, what is…

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Q: A gas occupies 18.7 L at 2.00 atm pressure and 27°C. How many moles of gas are present in the…

A: Given data -: Pressure = 2.00 atm  Volume = 18.7 L  Temperature = 27o C  To Find -: Number of moles…

Q: 12 15 -- 8 What is the specific heat capacity of a metal if it requires 173.4 J to change the…

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Q: Listen Balance the equation CgH187) + O₂(g) → CO₂(g) + H₂O(g) - E

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Q: A quantitative observation is called a measurement. Is this statement true or false? True False

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Q: Which of the following is true when the equilibrium constant for a reaction is relatively large? a)…

A: At equilibrium, the rate of the forward and the reverse reaction is the same and the concentration…

Q: A compound has 40.68% carbon, 5.12% hydrogen, and 54.20% oxygen (by mass). Calculate its empirical…

A: Empirical formula is the smallest whole number ratio of elements present in the compound. To find…

Q: AH for the reaction below is-826.0 kJ/mol. Calculate the heat change when a 56.75 g sample of iron…

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Q: You have two beakers on your lab table. Beaker A contains 32.07 g of sulfur and Beaker B contains…

A: Given that  The beaker A contains 32.07 g of sulfur and the beaker B contains 74.92 g 0f arsenic.…

Q: Would MgCl₂ be classified as ionic or covalent?

A: There are two types of compounds on basis of formation of bond-  1- ionic - if the bond is formed by…

Q: Question 20 Listen A quantitative observation contains a number and a unit does not contain a number…

A: Generally there is two types of observation that are quantitative and qualitative. Here the question…

Q: Consider the following reaction, where X represents an unknown element: B4X3(s) + 3XO2(g) 6X(s) +…

A: Given, chemical reaction-  6X(s) + 2B2O3 (s) --------> B4X3(s) + 3XO2(g)   155 g of X reacts…

Q: 12 Write the equilibrium expression for the following reaction: S(s) + O₂(g) SO₂(g) a) K= Ob) K- Oc)…

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Q: Which of the following violates the octet rule? a) BH4 b) N₂H4 c) BF3 d) NO3 e) PH₂

A: Answer-BF3 The chemical listed that deviates from the octet rule is:   a) BF3   Since boron (B) only…

Q: Consider the equilibrium shown here: CaCO3(s) C¥0 + CÓ, What would happen to the system if the total…

A: Le Chatelier's principle states that if the equilibrium is disturbed by any factor then the…

Q: A chemist needs 28.7 g of bromine for an experiment. What volume of bromine should the chemist use?…

A: Given that  Density of bromine = 3.12 g/cm3 The volume of bromine needed by the chemistry to get…

Q: The elements chlorine and iodine have similar chemical properties because they a) None of these O b)…

A: The elements chlorine and iodine have similar chemical properties because