File
... Describe a chemical test to show that the fat is unsaturated. name of reagent ................................................................................................................ result of test .............................................................................................. ...
... Describe a chemical test to show that the fat is unsaturated. name of reagent ................................................................................................................ result of test .............................................................................................. ...
mark scheme - A-Level Chemistry
... The precipitate / solid / it does not dissolve / is insoluble / remains OR a white / cream / yellow solid / precipitate OR stays the same OR no (visible / observable) change OR no effect / no reaction Ignore ‘nothing (happens)’. Ignore ‘no observation’. ...
... The precipitate / solid / it does not dissolve / is insoluble / remains OR a white / cream / yellow solid / precipitate OR stays the same OR no (visible / observable) change OR no effect / no reaction Ignore ‘nothing (happens)’. Ignore ‘no observation’. ...
Stoichiometry - hrsbstaff.ednet.ns.ca
... also fixes the relationship between the atomic mass unit and the gram. Since 6.02 x 1023 atoms of carbon (each with a mass of 12 amu) have a mass of 12 g, then (6.02 x 1023 atoms)(12 amu/atom)= 12 g 6.02 x 1023 amu=1 g 1.1.2. Calculate the number of particles and the amount of substance (in moles). ...
... also fixes the relationship between the atomic mass unit and the gram. Since 6.02 x 1023 atoms of carbon (each with a mass of 12 amu) have a mass of 12 g, then (6.02 x 1023 atoms)(12 amu/atom)= 12 g 6.02 x 1023 amu=1 g 1.1.2. Calculate the number of particles and the amount of substance (in moles). ...
Chapter 11: The Mole1 In what quantity do you purchase the
... 1 mole of Br atoms = __________________ 1 mole of Sn atoms = __________________ Molar mass of molecules and compounds Mass in grams of 1 mole of a compound equals the sum of the atomic masses of the elements involved. 1 mole of CaCl2 = ____________________ 1 mole of N2O4 = ____________________ 1 mol ...
... 1 mole of Br atoms = __________________ 1 mole of Sn atoms = __________________ Molar mass of molecules and compounds Mass in grams of 1 mole of a compound equals the sum of the atomic masses of the elements involved. 1 mole of CaCl2 = ____________________ 1 mole of N2O4 = ____________________ 1 mol ...
Stoichiometry: Calculations with Chemical
... Write the correct formulas for all the reactants and products ...
... Write the correct formulas for all the reactants and products ...
1C - Edexcel
... In this reaction there is a colour change from blue to pink. (i) Which word describes both cobalt compounds in equation 1? ...
... In this reaction there is a colour change from blue to pink. (i) Which word describes both cobalt compounds in equation 1? ...
3.1
... 1) If necessary, rewrite both equations in the form Ax + By = C. 2) If necessary, multiply either equation or both equations by appropriate nonzero numbers so that the sum of the x-coefficients or the sum of the ycoefficients is 0. 3) Add the equations in step 2. The sum should be an equation in one ...
... 1) If necessary, rewrite both equations in the form Ax + By = C. 2) If necessary, multiply either equation or both equations by appropriate nonzero numbers so that the sum of the x-coefficients or the sum of the ycoefficients is 0. 3) Add the equations in step 2. The sum should be an equation in one ...
chemistry
... KAl(SO4)2 •12H2O. It is a hydrated compound because water molecules are included within its crystal structure. There are 12 moles of H2O for every 1 mole of KAl(SO4)2. The compound contains two different positive ions. The gram-formula mass of KAl(SO4)2 •12H2O is 474 grams per mole. 66 Identify one ...
... KAl(SO4)2 •12H2O. It is a hydrated compound because water molecules are included within its crystal structure. There are 12 moles of H2O for every 1 mole of KAl(SO4)2. The compound contains two different positive ions. The gram-formula mass of KAl(SO4)2 •12H2O is 474 grams per mole. 66 Identify one ...
Unit 6 Study Guide - Dorman High School
... E) The phases in a chemical reaction tell us the nature of the reactants and products. ...
... E) The phases in a chemical reaction tell us the nature of the reactants and products. ...
Chap 3 - HCC Learning Web
... Watch out the charges of ions before combining them into an electrically neutral compound or element. What are the products from the following double-replacement reaction? Pb(NO3)2 + K2CrO4 (A) Pb(NO3)2 and K2CrO4 (B) K2CrO4 and PbCrO4 (C) PbCrO4 and KNO3 (D) Pb(NO3)2 and KNO3 (E) All of the abov ...
... Watch out the charges of ions before combining them into an electrically neutral compound or element. What are the products from the following double-replacement reaction? Pb(NO3)2 + K2CrO4 (A) Pb(NO3)2 and K2CrO4 (B) K2CrO4 and PbCrO4 (C) PbCrO4 and KNO3 (D) Pb(NO3)2 and KNO3 (E) All of the abov ...
Exit ticket –
... Keeton had 72 key chains to put on the display rack. There were 12 rods to hang the key chains on. How many key chains should Keeton put on each rod so that each rod has an equal number of key chains? ...
... Keeton had 72 key chains to put on the display rack. There were 12 rods to hang the key chains on. How many key chains should Keeton put on each rod so that each rod has an equal number of key chains? ...