Unit 2 Review Game
... • During a chemical reaction, a group combines 5.00 grams of sodium and 7.72 grams of chlorine. The result of the reaction was 12.72 grams of sodium chloride. Which law does this support? ...
... • During a chemical reaction, a group combines 5.00 grams of sodium and 7.72 grams of chlorine. The result of the reaction was 12.72 grams of sodium chloride. Which law does this support? ...
Zn + HCl → ZnCl 2 + H2 NaOH + H3PO4 → Na3PO4 + H2O N2 +
... Now, never touch the subscripts in the formulas again. Different subscripts = different molecules 2) Balance the equation by trying different coefficients to make the number of atoms of each element the same on both sides of the equation. Remember to multiply by the subscript when adding up numb ...
... Now, never touch the subscripts in the formulas again. Different subscripts = different molecules 2) Balance the equation by trying different coefficients to make the number of atoms of each element the same on both sides of the equation. Remember to multiply by the subscript when adding up numb ...
Resumen Science I Trimestre II Parcial Definitions: Element: pure
... Element: pure substance that can’t be separated into simpler substances by chemical or physical methods. Unique characteristic: can’t be broken down into smaller particles or substances. Atom: basic particles of elements. Elements are made from atoms; atoms aren’t made of elements. Chemical bond: fo ...
... Element: pure substance that can’t be separated into simpler substances by chemical or physical methods. Unique characteristic: can’t be broken down into smaller particles or substances. Atom: basic particles of elements. Elements are made from atoms; atoms aren’t made of elements. Chemical bond: fo ...
Fall Final Review Honors
... a. gas, b. plasma, c. solid , d. liquid Solution and colloid do not settle. Colloid and suspension are heterogeneous mixtures and scatter light. a. element, b. solution, c. compound, d. heterogeneous mixture a. physical, b. chemical, c. chemical, d. physical a. physical, b. chemical, c. chemical, d. ...
... a. gas, b. plasma, c. solid , d. liquid Solution and colloid do not settle. Colloid and suspension are heterogeneous mixtures and scatter light. a. element, b. solution, c. compound, d. heterogeneous mixture a. physical, b. chemical, c. chemical, d. physical a. physical, b. chemical, c. chemical, d. ...
I CAN write Chemical formulas
... the oxidation numbers and write the oxidation number (without plus or minus) of one element as the subscript of the other element. 3. Reduce the subscripts (number of atoms) to their simplest form, if needed. WHAT IS THE CHEMICAL FORMULA FOR CALCIUM CHLORIDE? ...
... the oxidation numbers and write the oxidation number (without plus or minus) of one element as the subscript of the other element. 3. Reduce the subscripts (number of atoms) to their simplest form, if needed. WHAT IS THE CHEMICAL FORMULA FOR CALCIUM CHLORIDE? ...
Masterton and Hurley Chapter 3
... moles of all of the answers to #3 5. *If the answers to #4 are whole numbers, these are the subscripts in the empirical formula. * If any of the answers to #4 is not a whole number, convert all answers to a common fraction. Multiply each fraction by the denominator resulting in a whole number and th ...
... moles of all of the answers to #3 5. *If the answers to #4 are whole numbers, these are the subscripts in the empirical formula. * If any of the answers to #4 is not a whole number, convert all answers to a common fraction. Multiply each fraction by the denominator resulting in a whole number and th ...
Atoms, Molecules and Ions
... forms both Fe+ and Fe2+ ions, we need to use the Stock system and call the compound iron(II) nitrate. (b) The cation is Na+ and the anion is HPO42− (hydrogen phosphate). Because sodium only forms one type of ion (Na+), there is no need to use sodium(I) in the name. The compound is sodium hydrogen ph ...
... forms both Fe+ and Fe2+ ions, we need to use the Stock system and call the compound iron(II) nitrate. (b) The cation is Na+ and the anion is HPO42− (hydrogen phosphate). Because sodium only forms one type of ion (Na+), there is no need to use sodium(I) in the name. The compound is sodium hydrogen ph ...
Unit 2 PowerPoint part 2
... * 4. Divide by small to get the Empirical formula * Ascorbic Acid contains 40.92% C, 4.58% H, and 54.50% O by mass. Determine the empirical ...
... * 4. Divide by small to get the Empirical formula * Ascorbic Acid contains 40.92% C, 4.58% H, and 54.50% O by mass. Determine the empirical ...
Physical Science
... • Can occur very slowly such as the formation of rust. • Can be used to separate substances such as metals from their ores. ...
... • Can occur very slowly such as the formation of rust. • Can be used to separate substances such as metals from their ores. ...
Campbell Biology, 10e (Reece) Chapter 2 The Chemical Context of
... 5) Knowing the atomic mass of an element allows inferences about which of the following? A) the number of electrons in the element B) the number of protons in the element C) the number of protons plus neutrons in the element D) the number of protons plus electrons in the element 6) In what way are ...
... 5) Knowing the atomic mass of an element allows inferences about which of the following? A) the number of electrons in the element B) the number of protons in the element C) the number of protons plus neutrons in the element D) the number of protons plus electrons in the element 6) In what way are ...
PHYSICAL SETTING CHEMISTRY
... plants. Boron has only two naturally occurring stable isotopes, boron-10 and boron-11. 73 Compare the abundance of the two naturally occurring isotopes of boron. [1] 74 Write an isotopic notation of the heavier isotope of the element boron. Your response must include the atomic number, the mass numb ...
... plants. Boron has only two naturally occurring stable isotopes, boron-10 and boron-11. 73 Compare the abundance of the two naturally occurring isotopes of boron. [1] 74 Write an isotopic notation of the heavier isotope of the element boron. Your response must include the atomic number, the mass numb ...
Ch6-Energy in Chemical Reactions-Chemical Reactions
... Chemists measure chemical in grams as the amount in the reaction. Therefore, we need a conversion factor to convert grams to atoms or molecules. Mole is the connection or the conversion factor between atoms and grams. Mole is just a large number 6.022 x 1023 for counting atoms like dozen -12 for co ...
... Chemists measure chemical in grams as the amount in the reaction. Therefore, we need a conversion factor to convert grams to atoms or molecules. Mole is the connection or the conversion factor between atoms and grams. Mole is just a large number 6.022 x 1023 for counting atoms like dozen -12 for co ...
Isotopes
... left of the chemical symbol, For iron (Fe) we have, for example: 54Fe, 56Fe, 57Fe, and 58Fe. Since the iron has the atomic number zFe = 26, we have 54 - 26 = 28 neutrons in 54Fe, and 30, 31, and 32 neutrons, respectively, in the other three isotopes given. Isotopes come in two basic variants: 1. Rad ...
... left of the chemical symbol, For iron (Fe) we have, for example: 54Fe, 56Fe, 57Fe, and 58Fe. Since the iron has the atomic number zFe = 26, we have 54 - 26 = 28 neutrons in 54Fe, and 30, 31, and 32 neutrons, respectively, in the other three isotopes given. Isotopes come in two basic variants: 1. Rad ...
APS Science Curriculum Unit Planner
... Our perception of the modern model of the atom has developed over time and allows us to make predictions about how chemicals will act when combined. PS 3, PS 5c ...
... Our perception of the modern model of the atom has developed over time and allows us to make predictions about how chemicals will act when combined. PS 3, PS 5c ...
AP Chemistry Summer Packet ANSWERS
... b. A colorless, crystalline solid is decomposed, yielding a pale yellow-green gas and a soft, shiny metal. c. A cup of tea becomes sweeter as sugar is added to it. a. physical, mixture b. chemical, compound c. physical, mixture CHAPTER 2 1. Describe Dalton’s atomic theory. All matter is made up of a ...
... b. A colorless, crystalline solid is decomposed, yielding a pale yellow-green gas and a soft, shiny metal. c. A cup of tea becomes sweeter as sugar is added to it. a. physical, mixture b. chemical, compound c. physical, mixture CHAPTER 2 1. Describe Dalton’s atomic theory. All matter is made up of a ...
Here are the answers and work for your summer packet.
... b. A colorless, crystalline solid is decomposed, yielding a pale yellow-green gas and a soft, shiny metal. c. A cup of tea becomes sweeter as sugar is added to it. a. physical, mixture b. chemical, compound c. physical, mixture CHAPTER 2 1. Describe Dalton’s atomic theory. All matter is made up of a ...
... b. A colorless, crystalline solid is decomposed, yielding a pale yellow-green gas and a soft, shiny metal. c. A cup of tea becomes sweeter as sugar is added to it. a. physical, mixture b. chemical, compound c. physical, mixture CHAPTER 2 1. Describe Dalton’s atomic theory. All matter is made up of a ...
Chp 1,2 rev
... 4) Why doesn’t an atom’s mass equal the masses of all the particles added together in it’s structure? ...
... 4) Why doesn’t an atom’s mass equal the masses of all the particles added together in it’s structure? ...
Chapter 4: Chemical Reactions Elements can be characterized as
... Table 4-11 (List of common cations and anions) Binary molecular compounds (Mostly two nonmetals bonded together) Use Greek and Latin prefixes instead of Roman numerals and suffixes. Examples: SO2 – sulfur dioxide; SO3 – sulfur trioxide; As4O6 – tetraarsenic hexoxide Learn the common prefixes (pg. 14 ...
... Table 4-11 (List of common cations and anions) Binary molecular compounds (Mostly two nonmetals bonded together) Use Greek and Latin prefixes instead of Roman numerals and suffixes. Examples: SO2 – sulfur dioxide; SO3 – sulfur trioxide; As4O6 – tetraarsenic hexoxide Learn the common prefixes (pg. 14 ...
Sample % Sulfate Absolute Deviation A 44.02 B 44.11 C 43.98 D
... 7. Imagine that you briefly heat 84.0 g of a red powder known to be mercuric oxide. After the sample has cooled, you notice a few globs of liquid mercury are mixed together with unreacted red powder. If the mass of the resulting mixture is 82.5 g, how much oxygen was produced during the heating? Whi ...
... 7. Imagine that you briefly heat 84.0 g of a red powder known to be mercuric oxide. After the sample has cooled, you notice a few globs of liquid mercury are mixed together with unreacted red powder. If the mass of the resulting mixture is 82.5 g, how much oxygen was produced during the heating? Whi ...
Core Idea PS1 Matter and Its Interactions How can one explain the
... families (place those with similar chemical properties in columns) valence (reflect patterns of outer electron states) structure and interactions of matter bulk scale electrical forces (within and between ato ...
... families (place those with similar chemical properties in columns) valence (reflect patterns of outer electron states) structure and interactions of matter bulk scale electrical forces (within and between ato ...
Document
... 55. An element with atomic number-26 is _____. A) Ca B) Fe C) Co D) Ni 56. The element [Ne]3s1 is in the _____ group. A) 1st B) 2nd C) 13th D) 17th 57. The element [Ne]3s23p3 is in the _____ group. A) 13th B) 2nd C) 15th D) 17th 58. The element [Ar]4s23d8 is a/an _____. A) alkali metal B) transition ...
... 55. An element with atomic number-26 is _____. A) Ca B) Fe C) Co D) Ni 56. The element [Ne]3s1 is in the _____ group. A) 1st B) 2nd C) 13th D) 17th 57. The element [Ne]3s23p3 is in the _____ group. A) 13th B) 2nd C) 15th D) 17th 58. The element [Ar]4s23d8 is a/an _____. A) alkali metal B) transition ...