Homework Answers
Ans 5 : The same number of molecules are in the reactant side of the equation as the product side.
There are three molecules in the reactant side : 2 molecules of KCl and 1 molecule of CaSO4 however in the products side there are only two molecules : one molecule each of K2SO4 and CaCl2.
So the first statement mentioned here is false.
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Consider the following chemical equation: 2KCl + CaSO: - K SO. + CaCl, Which of the...
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4. Chemical Reaction: Consider the following chemical equation: Where x , y , z ,u and v are the numbers of molecules of NH3 , , H, , H,0 and . respectively, to be determined. [Here, a molecule with the symbol NH indicates that it contains 1 atom of the element N and 3 atoms of the element H. Similar interpretation applies to the other molecules in the equation.] Given that the total number of atoms for each of the...
need help Insert the missing coefficients to completely balance each chemical equation. equation...
need help
Insert the missing coefficients to completely balance each chemical equation. equation 1: S+6 HNO, H,SO, + NO, +H,0 equation 2: 3 Cu + 8 HNO, Cu(NO), + NO + H2O We were unable to transcribe this imageBalance the equations by inserting coefficients as needed. equation 1: Sb + Cl, — SbCl, equation 2: Mg, N, + HCI — MgCl, +NH, Select the equation that best describes the reaction. O A+B, AB O 4 A +8 B — 4AB,...
Consider " 2 S2O32-". Which of the following statements is FALSE?
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The smallest chemical units of matter are atoms b) molecules c) protons d) neutrons e) electrons...
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Date: Period: Name: You Try... 4. Given the following chemical equation 4P + 50; → 2...
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29. Which of the following would be synthesized in and processed by the smooth endoplasmic reticulum...
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1. Which of the following are the sites within the human body where carbon dioxide and...
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4. Chemical Reaction: Consider the following chemical equation: Where x , y , z ,u and v are the numbers of molecules of NH3 , , H, , H,0 and . respectively, to be determined. [Here, a molecule with the symbol NH indicates that it contains 1 atom of the element N and 3 atoms of the element H. Similar interpretation applies to the other molecules in the equation.] Given that the total number of atoms for each of the...
need help
Insert the missing coefficients to completely balance each chemical equation. equation 1: S+6 HNO, H,SO, + NO, +H,0 equation 2: 3 Cu + 8 HNO, Cu(NO), + NO + H2O We were unable to transcribe this imageBalance the equations by inserting coefficients as needed. equation 1: Sb + Cl, — SbCl, equation 2: Mg, N, + HCI — MgCl, +NH, Select the equation that best describes the reaction. O A+B, AB O 4 A +8 B — 4AB,...
Consider " 2 S2O32-". Which of the following statements is FALSE? There are 3 O atoms contained in each unit. There are 4 S atoms contained in two units. Each unit of S2032 has a ratio of 1 S: 1.5 O Two units of S2032 have an overall charge of -4. 10 atoms are all connected together.The chemical equation H2 (3)+ O2 (3)>H2O (3) is not balanced. This equation CANNOT be balanced by adding a subscript of 2 behind the oxygen in H20. In other...
The smallest chemical units of matter are atoms b) molecules c) protons d) neutrons e) electrons . Which of the following would have the largest size? a) an atom b) a molecule c) a proton d) a neutron e) an electron 3. Isotopes of an element differ in the number of a) protons in the nucleus b) electrons in the nucleus © neutrons in the nucleus d) electron clouds e) energy levels they contain 4. VO The atomic number represents...
12. Which of the following molecules represent ci-2. Hexene? A CHE HOCH,CH.CH CH CH,CH.CH -H CH,CH, D. CH3 CH, "CHCH 13) What is the major organic product of the following reaction? CH:CH-CH2 + H20 H 14) The angle between the bonds in CH, is approximately __ a) 104.5° b) 109. 5° C ) 90° d) 120 15) Which of the following organic families is present in the molecule provided below? CH, CH2=CH2-CH a) ether b) alkane c ) alkene d)...
Date: Period: Name: You Try... 4. Given the following chemical equation 4P + 50; → 2 PO (a) How many moles of P,0, are formed from 3.4 moles of O,? SHOW the math below (b) How many moles of P are needed to react with 30,1 moles of O,? SHOW the math below. 5. Aluminum reacts with copper(ll) chloride to make aluminum chloride and copper (a) Write the balanced equation (b) Given 6 moles of Cuch, how many moles of...
29. Which of the following would be synthesized in and processed by the smooth endoplasmic reticulum and Golgi apparatus? A. lipids and steroids B. DNA polymerase and RNA polymerase C. lysosomal enzymes D. cytoskeletal proteins 30. Which of the following are processed in the Golgi apparatus? A. integral membrane proteins of the plasma membrane B. proteins that are secreted from the cell C. proteins that will be broken down by lysosomes D. all of the above E. none of the...
POGIL-Stoichiometry How do chemists use balanced chemical equations? got bit D 23 mosquitoes? 10 He got Mol-aria Why? Chemists use balanced chemical equations as a basis to calculate how much reactant is needed or product is formed in a reaction. This is called Stoichiometry- (stoi-key-ah-meh-tree) Another way of looking at it is using the mole ratio from the balanced equation and information about one compound in the reaction to determine information about another compound in the equation. A mole ratio...
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