Homework Answers
A. Water boils at 100°c at sea level- extensive property
The above statement is wrong as boiling point is intensive property. Other statement are correct.
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9. Which one of the following properties of matter is WRONG Select one: a. Water boils...
QUESTION 19 Which of the following, if any, is a physical property of matter? Water decomposes...
QUESTION 19 Which of the following, if any, is a physical property of matter? Water decomposes to form hydrogen and oxygen. Gasoline burns in a car's engine to form carbon dioxide and water. Iron rusts after being exposed to air and moisture. The density of water is about 1.00 g/mL at room temperature. None of the above is a physical change.
Which of the following is a chemical property of chlorine? Select one: a. Chlorine combines with...
Which of the following is a chemical property of chlorine? Select one: a. Chlorine combines with sodium to form sodium chloride. b. Chlorine is a gas. c. Chlorine has a low density. d. Chlorine is yellow-green. Gases are incompressible. Select one: True False Which of the following is true of matter/ Select one: a. Matter is a form of energy. b. Matter occupies space. c. Matter is always visible. d. Matter is smooth and continuous. Which of the following is...
1. Indicate which of the following would be considered physical properties (P) and which would be...
1. Indicate which of the following would be considered physical properties (P) and which would be considered chemical properties (C) of iron. ー-a. Iron reacts with oxygen to form iron oxides. b. Iron is a good conductor of heat and electricity. C. Iron melts at 1535°C. d. When iron is immersed in a solution of hydrochloric acid, hydrogen gas is produced. e. Iron becomes red-hot when heated. __ f. A500-cc volume of iron has a mass of 3930 g. Iron...
Q.7 Which one of following identify the Boyle's Law relationship A) P.V. - P.V; B) VgT;...
Q.7 Which one of following identify the Boyle's Law relationship A) P.V. - P.V; B) VgT; - Vy/T C) PV = nRT D) P./T, = P./Tz Q.B Naci is an example of A) tonic crystalline solid B) Covalent network solid C) Amorphous solid D) Molecular solid Q.9 identify the intermolecular forces between HCl molecules A) Hydrogen bonds B) dipole-dipole C) London dispersion D) dipole-induced dipole Q.10 Intermolecular force influence A) physical properties. B) Chemical properties of matter
Student name: Student ID#: Give the best answer for each of the following questions, Choose only ONE answer for ea...
Student name: Student ID#: Give the best answer for each of the following questions, Choose only ONE answer for each question and write clearly 1), the identities of the substances involved are the same as their identities before the change a-Physical change b-Chemical change - State of matter d-Mixture 2) This kind of separation is based on the state of matter and it is used to separate a heterogeneous mixture like coffee a- Filtration b-distillation C-cooking d-extraction 3) Which of...
please answer all question and type please Problems and questions 1. Balance the following equations: -...
please answer all question and type please
Problems and questions 1. Balance the following equations: - Na + H₂O NaOH + H2 PbO + _NH Pb + _Ny +_ H_O CH. +_ - _CO+ H2O a) — _NayCO; + _Mg(NO3)2 - > MgCO, + NaNO, 2. Write the correct balanced equation for each of the following reactions. Include the proper subscripts and include the state of matter for all reactants and products. Write the type of reaction on the blank...
1. Which ONE of the following lists gives the correct symbols for the elements phosphorus, potassium,...
1. Which ONE of the following lists gives the correct symbols for the elements phosphorus, potassium, silver, chlorine, and sulfur in that order? A) K, Ag, Po, Cl, S B) P, Po, Ag, CI, S C) Ph, K, Ag, S, Cl D) E) P, K, Ag, Cl, S Ph, Po, Ag, CI,S 2. Which of the following is NOT a correct name-symbol combination? A) beryllium, Be B) boron, B C) cobalt, Co D) magnesium, Mn E) copper, Cu 3. If...
Pre-Laboratory Exercise: Plastics Identification I. List four properties that you will use in lab...
can
someone help me find this information?
Pre-Laboratory Exercise: Plastics Identification I. List four properties that you will use in lab to determine the identity of the polymer samples 2. Describe the density test. What observation will help you determine the density of each polymer? What precautions should be taken in placing the sample in the solutions? 3. Write the name and abbreviation for the six recyclable polymers 2 huetn deisity polyetayene.HDpz poulene: PP 4. Given the list of wavenumber...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...
QUESTION 19 Which of the following, if any, is a physical property of matter? Water decomposes to form hydrogen and oxygen. Gasoline burns in a car's engine to form carbon dioxide and water. Iron rusts after being exposed to air and moisture. The density of water is about 1.00 g/mL at room temperature. None of the above is a physical change.
1. Indicate which of the following would be considered physical properties (P) and which would be considered chemical properties (C) of iron. ー-a. Iron reacts with oxygen to form iron oxides. b. Iron is a good conductor of heat and electricity. C. Iron melts at 1535°C. d. When iron is immersed in a solution of hydrochloric acid, hydrogen gas is produced. e. Iron becomes red-hot when heated. __ f. A500-cc volume of iron has a mass of 3930 g. Iron...
Q.7 Which one of following identify the Boyle's Law relationship A) P.V. - P.V; B) VgT; - Vy/T C) PV = nRT D) P./T, = P./Tz Q.B Naci is an example of A) tonic crystalline solid B) Covalent network solid C) Amorphous solid D) Molecular solid Q.9 identify the intermolecular forces between HCl molecules A) Hydrogen bonds B) dipole-dipole C) London dispersion D) dipole-induced dipole Q.10 Intermolecular force influence A) physical properties. B) Chemical properties of matter
Student name: Student ID#: Give the best answer for each of the following questions, Choose only ONE answer for each question and write clearly 1), the identities of the substances involved are the same as their identities before the change a-Physical change b-Chemical change - State of matter d-Mixture 2) This kind of separation is based on the state of matter and it is used to separate a heterogeneous mixture like coffee a- Filtration b-distillation C-cooking d-extraction 3) Which of...
please answer all question and type please
Problems and questions 1. Balance the following equations: - Na + H₂O NaOH + H2 PbO + _NH Pb + _Ny +_ H_O CH. +_ - _CO+ H2O a) — _NayCO; + _Mg(NO3)2 - > MgCO, + NaNO, 2. Write the correct balanced equation for each of the following reactions. Include the proper subscripts and include the state of matter for all reactants and products. Write the type of reaction on the blank...
1. Which ONE of the following lists gives the correct symbols for the elements phosphorus, potassium, silver, chlorine, and sulfur in that order? A) K, Ag, Po, Cl, S B) P, Po, Ag, CI, S C) Ph, K, Ag, S, Cl D) E) P, K, Ag, Cl, S Ph, Po, Ag, CI,S 2. Which of the following is NOT a correct name-symbol combination? A) beryllium, Be B) boron, B C) cobalt, Co D) magnesium, Mn E) copper, Cu 3. If...
can
someone help me find this information?
Pre-Laboratory Exercise: Plastics Identification I. List four properties that you will use in lab to determine the identity of the polymer samples 2. Describe the density test. What observation will help you determine the density of each polymer? What precautions should be taken in placing the sample in the solutions? 3. Write the name and abbreviation for the six recyclable polymers 2 huetn deisity polyetayene.HDpz poulene: PP 4. Given the list of wavenumber...
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