14 13- 12- 11+ 10+ 9+ 8+ 공 7 6+ 2. 1. 5.0 10.0 15.0 20.0 25.0 30.0 35.0 Volume of NaOH(aq) Added (mL)

Q: Define energy and explain the importance of energy in chemistry

A: Science is knowledge about facts that are based on observations of experiments.Chemistry is one of…

Q: c) You decide to preserve some fish using sodium chloride. Explain how the sodium chloride works as…

A: Hello. Since more than one question gas been asked, the first question shall only be answered in…

Q: а. NH3 NaCN H HCI b. Br EtO2c co,Et `CO2Et Br HCI NO NaOEt H20 c. E1cb OP

A: As per the regulations only the first three subparts of a question could be answered.

Q: A typical recipe for a hot toddy (a drink often used as a cold remedy) is to mix hot water with…

A: The amount of energy absorbed by 16 oz. of water is 33 kcal. The amount of hot water mixed with 1.5…

Q: Which statement describes all chemical changes, but not all physical changes? O Bubbles are…

A: The statement which describes chemical changes has to be given,

Q: The distance from San Francisco to Los Angeles is approximately 385 miles. You and your friends…

A: Total distance between san francisco to los angeles = 385 miles Amount of Water have to drink per km…

Q: a

A: Dear student I have given answer to your question in the image format.

Q: 6. Which causes the high density of solids? a) b) c) d) The particles are more massive than those in…

A: The density of solids are high compare to liquids and gases because intermolecular force of…

Q: Two solid objects, A and B, are both at room temperature and then placed in boiling water. The…

A: Heat capacity - it is the amount of heat required to change the temperature by 1 Degree.

Q: Two solid objects, A and B, are both at room temperature and then placed in boiling water. The…

A: Heat capacity is the amount of energy in the form of heat,  takes for increasing the temperature of…

Q: Q6) Given the following set of data concerning standardization of NaOH solution:   - mass of KHP…

A: It is an example of neutralization reaction we are required to find the molar concentration of NaOH…

Q: 3. Which of the following processes is best described as a chemical change? Upon heating, mercury…

A: A chemical change is defined as the change in the chemical formula of the compounds. So whenever…

Q: Which of the following represent a chemical change? Which of the following represents a physical…

A: We are to discuss which of gives changes are physical and chemical changes.

Q: Group the characteristics of the give substance according to their physical (extensive or intensive)…

A: Answer: Extensive properties of a substance are the one, those depend upon the quantity of the…

Q: Convert 3.97×1010 J to units of kcal.

A: By using relation between J and Kcal we can solve this problem. 3.97×1010J = 9.5 × 106 Kcal

Q: 7. Which of the following processes are chemical changes? Give reasons. a) Making a Salt Solution.…

A: There are two types of changes that can occur in a process: S.No Physical changes Chemical…

Q: cal 1.987 Leatm to atoms K mol-K Useful conversion factors 1 in = 2.54 cm 1 m 1 x109 nm %3D 1 mol =…

A: Unit conversion:-     It is a multi - step process that involves multiplication or division by a…

Q: The process in which adding a chemical compound to another chemical compound and observe physical…

A: Since we are observing physical changes only. Physical properties reflect quality of a substance.…

Q: 4. AGNO3(aq) + NaOH(aq) yes 5. CaChag) + NaOH(aa)

A: Silver nitrate will react with sodium hydroxide to form silver hydroxide ppt and soluble sodium…

Q: Use the following information to answer question 1. A group of students is asked to design and…

A: To answer the following question.

Q: 31) H,O, H", heat OH

A: Benzene diazonium salts gives phenol in presence of H2O.H+ Again phenol undergoes coupling reaction…

Q: 7. -A US Airways flight leaves Philadelphia in the early evening and arrives in Frankfurt 8.05 hours…

A:

Q: E B) C) A) R. R Coordenada de Coordenada de Coordenada de reação reação reação D) E) Coordenada de…

A: Given reaction is : Which diagram is the correct diagram for the given reaction = ?

Q: Which physical property cannot be used for measuring temperature? Color, tensile strength, volume of…

A: Hence, the correct answer is colour and tensile strength.

Q: X 26. In the question above, two liquids react together to form a solid. What term is given to this…

A: A precipitation reaction happens in aqueous solution because one product is not soluble. A insoluble…

Q: 1. (CH3);CCI, AICI, 2. CH;CI, AICI; 3. KMNO4, NaOH, heat 4. H, O+

A: Solution: Friedel Craft alkylation reaction: When alkyl halide treated with aromatic compounds (…

Q: 2.96×104 J  to Cal Express the value in Calories to three significant figures.

A: We know that, 1 Cal = 4.184 J  1 J = 1/4.184 Cal

Q: 2860 kcal to kj

A: Following is the appropriate answer of the given questions.

Q: Two solid objects, A and B, are both at room temperature and then placed in boiling water. The…

A: Heat capacity is amount of heat required by the object to change its temperature by degree 1.

Q: 7.62 x 10^6 J to kcal

A: We have to convert given quantity to kcal unit.

Q: Part A Water and rubbing alcohol have distinct properties and will react differently with the same…

A: Rubbing alcohol is isopropyl alcohol (CH3-CH2-OH). It has a dielectric constant of 19.92 whereas…

Q: A chemist adds 1.90L of a 0.106 M potassium dichromate K2Cr2O7 solution to a reaction flask.…

A: We have to predict the millimoles of chemical added.

Q: 1. 450 g flour and 1 L water 2. 500 ml alcohol and 1 L water 3. 300 g rice grains and 540 ml water

A: For measuring any component, we have to choose that material that can measure the simple ratio of…

Q: Classify each property as physical or chemical. a. the boiling point of ethyl alcohol b. the…

A: Physical property: Property of material which can be obtained without disturbing identity of…

Q: Which action describes a chemical change caused by a change in temperature? O boiling an egg in a…

A: Option A is correct.

Q: NH2 NaOH (aq) heat Na

A: Since you have asked multiple questions, we will solve first one for you. For any particular…

Q: substance reacts violently with water. The substance melts at 73.59 oC. The substance was named…

A: 1. Physical properties are used to observe and describe matter. Physical properties include:…

Q: Question attached

A: The horsepower (hp) is related to power (watt) using the following unit conversion  1 hp =745.7 watt…

Q: 1. When steam condenses, A. A physical change occurs. B. A chemical change occurs. C. Both physical…

A: When steam condenses a physical change occurs.

Q: How many joules are in 55.2 calories? O 231 O none of the above O 13.2 O 13,200 O 55,200

A: Since,1 calory =4.184 J

Q: convert 531 J to calories

A: Energy can be expressed in different units such as Joules , ergs ,calories , electron volts ,…

Q: %3D .1 mL 441.)10 1 dt 10 I mL. %3D 441. 10 101 1°

A: So basically the question have asked to solve the unit conversation.

Q: 1.104 A seientist elaims to have found a treatment for ear infections in children. All the patients…

A: Given: Scientist claim to have treatment of ear infection .  Patients were given treatment and it…

Q: Change 2 Change 3 Change 1 Change 3 is: Change 1 is: OImpossible a physical change Change 2 is: O…

A: When the reactants react in a reaction and involves the breaking of bonds then this reaction is…

Q: A chemist adds 305.0 mL of a 0.41M barium chloride (BaCl₂) solution to a reaction flask. Calculate…

A: Given,  Volume of solution = 305.0 mL                                     = 0.305 L  Concentration…

Q: The dosage of quinine when a 145–lb adult takes a 200.–mg tablet is equivalent to - µg drug per kg…

A: Since 1 g = 1000 mg = 106  μg Hence 1 mg = 1000 μg  Hence 200 mg = 200 X 1000 = 2 X 105 μg = mass of…

Q: Classify property as physical or chemical. the tendency of ethyl alcohol to burn

A: On burning the ethyl alcohol, carbon dioxide and water are produced.

Q: Balance the following:                                 10 +10β + 1844X à ___ 24α + 3 -10β + 2124 Y…

A:

Q: Is the following chemical or physical change endothermic or exothermic? co2 + H20 + sunlight →…

A: The chemical change is the change that substance completely changes its’s composition and formed a…

Q: Classify the following as a physical property or a chemical property. (a) Copper metal has a…

A: Whether the given property of copper is physical or a chemical has to be stated.

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. 

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.