Final Exam Practice Questions for General Chemistry NOTICE TO
... 17. A sugar cube was heated until it melted completely. The heat was then increased, and the sugar decomposed into a black solid mass. The changes associated with this process are: a) A physical change for melting and a physical change for the decomposition. b) A chemical change for the melting and ...
... 17. A sugar cube was heated until it melted completely. The heat was then increased, and the sugar decomposed into a black solid mass. The changes associated with this process are: a) A physical change for melting and a physical change for the decomposition. b) A chemical change for the melting and ...
Chapter 02 The Chemical Basis of Life I: Atoms, Molecules, and Water
... LO: 02.03.03 Understand how the molarity of a solution the number of moles of a solute per liter of solution is used to measure the concentration of solutes in solution. Section: 02.03 Properties of Water Topic: Chemistry ...
... LO: 02.03.03 Understand how the molarity of a solution the number of moles of a solute per liter of solution is used to measure the concentration of solutes in solution. Section: 02.03 Properties of Water Topic: Chemistry ...
Midterm Review Teacher Answer Key December 21, 2011 `see
... balanced equation shown. NaCl + NH3 + CO2 + H2O → NaHCO3 + NH4Cl Explain, in terms of electronegativity difference, why the bond between hydrogen and oxygen in a water molecule is more polar than the bond between hydrogen and nitrogen in an ammonia molecule. [1] The electronegativity difference betw ...
... balanced equation shown. NaCl + NH3 + CO2 + H2O → NaHCO3 + NH4Cl Explain, in terms of electronegativity difference, why the bond between hydrogen and oxygen in a water molecule is more polar than the bond between hydrogen and nitrogen in an ammonia molecule. [1] The electronegativity difference betw ...
Document
... and base neutralize each other’s properties. • In the reaction , the H+1 from the acid combines with the OH-1 from the base to make water. • The cation from the base combines with the anion from the acid to make the salt. acid + base salt + water 2 HNO3(aq) + Ca(OH)2(aq) Ca(NO3)2(aq) + 2 H2O(l) HC2H ...
... and base neutralize each other’s properties. • In the reaction , the H+1 from the acid combines with the OH-1 from the base to make water. • The cation from the base combines with the anion from the acid to make the salt. acid + base salt + water 2 HNO3(aq) + Ca(OH)2(aq) Ca(NO3)2(aq) + 2 H2O(l) HC2H ...
Dalton`s Laws worksheet
... Dalton’s Atomic Theory of Matter 1. Which of the following statements is part of Dalton’s atomic theory of matter? a. All atoms are identical b. All atoms of a given element are identical c. All atoms differ from one another d. Atoms of the same element can have a different shape 2. Dalton suggested ...
... Dalton’s Atomic Theory of Matter 1. Which of the following statements is part of Dalton’s atomic theory of matter? a. All atoms are identical b. All atoms of a given element are identical c. All atoms differ from one another d. Atoms of the same element can have a different shape 2. Dalton suggested ...
Chemistry Syllabus
... 1) Write all calculations in this section. One sample calculation is needed where the same calculation is repeated. Make sure the equation is written, numbers are plugged into the equation with units and final answer represented with units and proper significant figures. All graphs must have a tit ...
... 1) Write all calculations in this section. One sample calculation is needed where the same calculation is repeated. Make sure the equation is written, numbers are plugged into the equation with units and final answer represented with units and proper significant figures. All graphs must have a tit ...
NC Exam Questions - Rosshall Academy
... forms a bond with the carbonyl carbon atom of the second molecule. (a) Draw a structural formula for the product formed when propanone is used instead of ethanal in this type of reaction. (1) (b) Name an aldehyde that would not take part in an aldol condensation. (1) (c) Apart from the structure of ...
... forms a bond with the carbonyl carbon atom of the second molecule. (a) Draw a structural formula for the product formed when propanone is used instead of ethanal in this type of reaction. (1) (b) Name an aldehyde that would not take part in an aldol condensation. (1) (c) Apart from the structure of ...
Unit 2 - Calderglen High School
... forms a bond with the carbonyl carbon atom of the second molecule. (a) Draw a structural formula for the product formed when propanone is used instead of ethanal in this type of reaction. (1) (b) Name an aldehyde that would not take part in an aldol condensation. (1) (c) Apart from the structure of ...
... forms a bond with the carbonyl carbon atom of the second molecule. (a) Draw a structural formula for the product formed when propanone is used instead of ethanal in this type of reaction. (1) (b) Name an aldehyde that would not take part in an aldol condensation. (1) (c) Apart from the structure of ...
Chapter 6
... compound usually has the same oxidation number it would have if it were a monatomic ion. – A. Hydrogen can be either +1 or –1. – B. Oxygen usually has an oxidation number of –2. • In peroxides, oxygen is –1. ...
... compound usually has the same oxidation number it would have if it were a monatomic ion. – A. Hydrogen can be either +1 or –1. – B. Oxygen usually has an oxidation number of –2. • In peroxides, oxygen is –1. ...
Complete the following equations
... The reaction between nitrogen and chlorine gas produces nitrogen trichloride, NCl3, as the sole product. However, reactions between phosphorus, Arsenic, and antimony with chlorine gas will produce both trichloride, MCl3, and pentachloride compounds (MCl5). Explain why nitrogen (a member of Group 5A ...
... The reaction between nitrogen and chlorine gas produces nitrogen trichloride, NCl3, as the sole product. However, reactions between phosphorus, Arsenic, and antimony with chlorine gas will produce both trichloride, MCl3, and pentachloride compounds (MCl5). Explain why nitrogen (a member of Group 5A ...
Chemical Bonding and Molecular Geometry
... In ionic compounds, electrons are transferred between atoms of different elements to form ions. But this is not the only way that compounds can be formed. Atoms can also make chemical bonds by sharing electrons equally between each other. Such bonds are called covalent bonds. Covalent bonds are form ...
... In ionic compounds, electrons are transferred between atoms of different elements to form ions. But this is not the only way that compounds can be formed. Atoms can also make chemical bonds by sharing electrons equally between each other. Such bonds are called covalent bonds. Covalent bonds are form ...
Take Home - mvhs
... Name: __________________________________ I have neither given nor received aid on this exam, except from my group (if applicable.) Period: ______ Date: ______ ...
... Name: __________________________________ I have neither given nor received aid on this exam, except from my group (if applicable.) Period: ______ Date: ______ ...
IGCSE Revision document
... If a metal is more reactive than hydrogen its ions stay in solution and hydrogen bubbles off ...
... If a metal is more reactive than hydrogen its ions stay in solution and hydrogen bubbles off ...
Carefully detach the last page. It is the Data Sheet.
... 15 If an oxide of nitrogen contains 25.9% by mass of nitrogen, what is its empirical formula? A ...
... 15 If an oxide of nitrogen contains 25.9% by mass of nitrogen, what is its empirical formula? A ...
- Catalyst
... Question 2: Which one of the following statements is generally true about electronegativity when you look at the periodic table? Circle one: a) Electronegativity decreases as we move left to right and decreases as we move top to bottom. b) Electronegativity decreases as we move left to right and ...
... Question 2: Which one of the following statements is generally true about electronegativity when you look at the periodic table? Circle one: a) Electronegativity decreases as we move left to right and decreases as we move top to bottom. b) Electronegativity decreases as we move left to right and ...
Methane Activation by Transition-Metal Oxides, MOx
... of the basis functions (denoted as LACVP** in Jaguar). For O, C, and H, we use the standard 6-31G** basis sets developed by Pople and co-workers.35-36 All calculations were carried out with the Jaguar 4.0 program suite.37 Vibrational frequencies were calculated to ensure that each minimum is a true ...
... of the basis functions (denoted as LACVP** in Jaguar). For O, C, and H, we use the standard 6-31G** basis sets developed by Pople and co-workers.35-36 All calculations were carried out with the Jaguar 4.0 program suite.37 Vibrational frequencies were calculated to ensure that each minimum is a true ...
Chem. 121, Sec 11 Name: Student I.D. Please Show Your Work
... If 35.5 mL of H2(g) is collected over water at 26 ◦C and a barometric pressure of 755 mmHg, how many moles of HCl must have been consumed? (The vapor pressure of water at 26 ◦C is 25.2 mmHg.) Show your calculations; include units in every step. (5 marks) R= 0.08206 atm.L. mol-1. K-1 , T (K) = t (◦C) ...
... If 35.5 mL of H2(g) is collected over water at 26 ◦C and a barometric pressure of 755 mmHg, how many moles of HCl must have been consumed? (The vapor pressure of water at 26 ◦C is 25.2 mmHg.) Show your calculations; include units in every step. (5 marks) R= 0.08206 atm.L. mol-1. K-1 , T (K) = t (◦C) ...
Chapter 1
... 43. Give the empirical formula of each of the following compounds if a sample contains a) 0.0130 mol C, 0.0390 mol H, and 0.0065 mol O C2H6O b) 11.66 g iron and 5.01 g oxygen Fe2O3 c) 40.0% C, 6.7% H, and 53.3% O by mass CH2O 45. Determine the empirical formulas of the compounds with the following ...
... 43. Give the empirical formula of each of the following compounds if a sample contains a) 0.0130 mol C, 0.0390 mol H, and 0.0065 mol O C2H6O b) 11.66 g iron and 5.01 g oxygen Fe2O3 c) 40.0% C, 6.7% H, and 53.3% O by mass CH2O 45. Determine the empirical formulas of the compounds with the following ...
1 - New Age International
... are all alike but differ from atoms of other elements. An atom of an element has a definite mass. Atoms are indestructible. (ii) Molecule: A group of atoms capable of independent existence. A compound is composed of group of atoms of different elements. 4. Avogadro’s hypothesis: Equal volumes of all ...
... are all alike but differ from atoms of other elements. An atom of an element has a definite mass. Atoms are indestructible. (ii) Molecule: A group of atoms capable of independent existence. A compound is composed of group of atoms of different elements. 4. Avogadro’s hypothesis: Equal volumes of all ...
Chemical Reactions Notes-1a-1
... Write the complete balanced chemical equation and net ionic equation for the reaction between aqueous solutions of acetic acid and barium hydroxide. ...
... Write the complete balanced chemical equation and net ionic equation for the reaction between aqueous solutions of acetic acid and barium hydroxide. ...
Chemical Bonding
... As you know, we often develop models to help us understand abstract concepts. You are already familiar with several models: Bohr’s model of the atom; the water cycle; the collision model. In this chapter we will develop theories and models of chemical bonding (including the character of atomic bonds ...
... As you know, we often develop models to help us understand abstract concepts. You are already familiar with several models: Bohr’s model of the atom; the water cycle; the collision model. In this chapter we will develop theories and models of chemical bonding (including the character of atomic bonds ...
Ch. 9
... Naming Ionic Compounds • Binary compounds – two types of elements • Ternary compounds – more than two types of elements • Cations go 1st – cation can be metal or polyatomic ion – For metals that have only 1 possible charge (valency, oxidation #), the name of the metal is used • Examples are Group 1 ...
... Naming Ionic Compounds • Binary compounds – two types of elements • Ternary compounds – more than two types of elements • Cations go 1st – cation can be metal or polyatomic ion – For metals that have only 1 possible charge (valency, oxidation #), the name of the metal is used • Examples are Group 1 ...