Homework Answers
1) Carbon
2) (NH4)2SO4 = ammonium sulfide, combination is wrong.
why because the correct formula of ammonium sulfide is (NH4)2S.
Add Answer to:
And why?
Which element does NOT exist in its most stable form as diatomic molecules? nitrogen...
help! Section 1: Balance each of the following reactions. Your instructor may discuss the different types...
help!
Section 1: Balance each of the following reactions. Your instructor may discuss the different types of reactions present in these examples. Reaction Type Al + O2 +Al:03 Synthesis Synthesis N2 + H2 + NH3 MgCO3 → MgO + CO2 KCIO: → KCI + 02 Cu + AgNO3 → Ag + Cu(NO3)2 Cl2 + Nal → NaCl + 1; HCI + NaOH + H:0 + NaCI BiCl3 + H2S → Bi2S3 + HCI Section II: Balance each of the following...
Partner PART A. BALANCING EQUATIONS sulfur plus oxygen yields sulfur trioxide carbon plus oxygen yields carbon...
Partner PART A. BALANCING EQUATIONS sulfur plus oxygen yields sulfur trioxide carbon plus oxygen yields carbon dioxide Name Date Combination reactions silver plus sulfur yields silver sulfide sulfur dioxide plus water gives sulfuric acid 3 Decomposition reactions sodium carbonate in the presence of heat produces carbon dioxide and sodium oxide carbonic acid produces carbon dioxide and water ammonium hydroxide produces ammonia and water potassium chlorate (KCIO,) plus heat gives potassium chloride and oxygen Single replacement reactions copper plus silver nitrate...
3. Acrylic acid, used in the manufacture of some plastics, has the composition 50.0% C, 5.6%...
3. Acrylic acid, used in the manufacture of some plastics, has the composition 50.0% C, 5.6% H, and 44.4% O by mass. What is the empirical formula? 4. Urea contains C, H, N, and O. A 2.54 gram sample of urea is found to contain 0.51 g carbon, 0.17 g of hydrogen, and 1.19 g of nitrogen. What is the empirical formula of urea? 5. Putrescine, a substance produced by decaying animals, is composed of 54.5 % carbon, 13.6% hydrogen,...
Directions: Write the formula or name of the following compounds in the space provided. (Please note...
Directions: Write the formula or name of the following compounds in the space provided. (Please note that some of these compounds do not exist as a stable substance in nature, however the following should serve as a practice exercise in nomenclature.) If provided the name, then you must write the formula. If provided the formula, then you must write the correct name. Indicate IUPAC names only. NOTE: IF EVEN ONE PROBLEM IS LEFT UNANSWERED, YOU WILL RECEIVE ZERO (0) POINTS...
CHM 1210 Final practice Name: Know electrolyte table, 5 solubility rules; 26 polyatomics (name/formula) Write 7...
CHM 1210 Final practice Name: Know electrolyte table, 5 solubility rules; 26 polyatomics (name/formula) Write 7 naturally occurring diatomic molecules (name; formula, phase , charge) Write rite out strong acids and weak acids by name; formula, phase ,charge Write out the molecular, complete, and net-ionic equations for the following reactions The mixing of Cobalt(IlI) chloride and silver nitrate The mixing of acetic acid and sodium hydroxide The mixing of hydrochloric acid and cakcium hydroxide The mixing of barium chloride and...
Written Assignment 2: Atomic Structure and Chemical Compounds Answer all assigned questions and problems, and show...
Written Assignment 2: Atomic Structure and Chemical Compounds Answer all assigned questions and problems, and show all work. What is the mass number of an iron atom that has 28 neutrons? (3 points) (Reference: Chang 2.13) Calculate the number of neutrons of 239Pu. (3 points) (Reference: Chang 2.14) Write the appropriate symbol for each of the following isotopes: (a) Z = 11, A = 23; (b) Z = 28, A = 64 (6 points) (Reference: Chang 2.17) Define, with two...
3.2 Periodic trends 1. (0620-5 2012-Paper 1/2-Q21) Which properties of the element titanium, Ti, can be...
3.2 Periodic trends 1. (0620-5 2012-Paper 1/2-Q21) Which properties of the element titanium, Ti, can be predicted from its position in the Periodic Table? forms coloured compounds conducts electricity when solid can be used has low density as a catalyst X A X X Xx 2. (0620-W 2012-Paper 1/1-Q20) The diagram shows an outline of the Periodic Table. U V W X Y Which of the elements U, V, W, X and Y would react together in the ratio of...
When you write the answers, please write the page number for which the question is located....
When you write the answers, please write the page number for
which the question is located. Thank you!
Experiment 8 Name: Double Replacement Reactions Background: Some reactions have the net effect of causing the cation of cach reactant to trade places, forming a compound with the other anion. These reactions are known as double replacement reactions. In the example below (unbalanced equation), the barium and sodium cations switch places so that barium forms a product with sulfate while sodium forms...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) 1) One mole of any substance contains Avogadro's number of particles of that substance. What is the numerical value of Avogadro's number? A) 12.01 23 Avagrans t Male aton 6022 x1o atums B) 6.022 x 1023 C) 6.022 x 10-23 D) 1.661 x10-24 E) 1.00 x10-14 2) What is the mass of 4.00 moles of helium, the gas commonly used to fill...
please complete the questions has not answering with clarification of the answer to any page Name...
please complete the questions has not answering with
clarification of the answer to any page
Name Lab Section _Date The Mole Concept and Atomic Weights The purpose of this activity is to better understand the concepts of relative atomic mass, counting by weighing and the mole. Percent composition and average atomic mass are included. Part I. Relative Atomic Masses and the Mole - Early Method When John Dalton proposed his atomic theory, he stated that the atoms of each element...
help!
Section 1: Balance each of the following reactions. Your instructor may discuss the different types of reactions present in these examples. Reaction Type Al + O2 +Al:03 Synthesis Synthesis N2 + H2 + NH3 MgCO3 → MgO + CO2 KCIO: → KCI + 02 Cu + AgNO3 → Ag + Cu(NO3)2 Cl2 + Nal → NaCl + 1; HCI + NaOH + H:0 + NaCI BiCl3 + H2S → Bi2S3 + HCI Section II: Balance each of the following...
Partner PART A. BALANCING EQUATIONS sulfur plus oxygen yields sulfur trioxide carbon plus oxygen yields carbon dioxide Name Date Combination reactions silver plus sulfur yields silver sulfide sulfur dioxide plus water gives sulfuric acid 3 Decomposition reactions sodium carbonate in the presence of heat produces carbon dioxide and sodium oxide carbonic acid produces carbon dioxide and water ammonium hydroxide produces ammonia and water potassium chlorate (KCIO,) plus heat gives potassium chloride and oxygen Single replacement reactions copper plus silver nitrate...
CHM 1210 Final practice Name: Know electrolyte table, 5 solubility rules; 26 polyatomics (name/formula) Write 7 naturally occurring diatomic molecules (name; formula, phase , charge) Write rite out strong acids and weak acids by name; formula, phase ,charge Write out the molecular, complete, and net-ionic equations for the following reactions The mixing of Cobalt(IlI) chloride and silver nitrate The mixing of acetic acid and sodium hydroxide The mixing of hydrochloric acid and cakcium hydroxide The mixing of barium chloride and...
3.2 Periodic trends 1. (0620-5 2012-Paper 1/2-Q21) Which properties of the element titanium, Ti, can be predicted from its position in the Periodic Table? forms coloured compounds conducts electricity when solid can be used has low density as a catalyst X A X X Xx 2. (0620-W 2012-Paper 1/1-Q20) The diagram shows an outline of the Periodic Table. U V W X Y Which of the elements U, V, W, X and Y would react together in the ratio of...
When you write the answers, please write the page number for
which the question is located. Thank you!
Experiment 8 Name: Double Replacement Reactions Background: Some reactions have the net effect of causing the cation of cach reactant to trade places, forming a compound with the other anion. These reactions are known as double replacement reactions. In the example below (unbalanced equation), the barium and sodium cations switch places so that barium forms a product with sulfate while sodium forms...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) 1) One mole of any substance contains Avogadro's number of particles of that substance. What is the numerical value of Avogadro's number? A) 12.01 23 Avagrans t Male aton 6022 x1o atums B) 6.022 x 1023 C) 6.022 x 10-23 D) 1.661 x10-24 E) 1.00 x10-14 2) What is the mass of 4.00 moles of helium, the gas commonly used to fill...
please complete the questions has not answering with
clarification of the answer to any page
Name Lab Section _Date The Mole Concept and Atomic Weights The purpose of this activity is to better understand the concepts of relative atomic mass, counting by weighing and the mole. Percent composition and average atomic mass are included. Part I. Relative Atomic Masses and the Mole - Early Method When John Dalton proposed his atomic theory, he stated that the atoms of each element...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago