KnowledgeBase

1. Question:An alkene is a carbon compound that contains a(n) _____ bond= 2. Question:Which is the name of this compound Ch3-Ch2-Ch2-Ch2-Ch3= 3. Question:Which is the name of CH3-CH2-CH2Oh? 4. Question:Which is the name of CH3-Ch2-H2C-NH2? 5. Question:Give the main/longest chain name, functional group(s) name, and IUPAC name of the following organic compound: CH3CHO= 6. Question:Give the main/longest chain name (1pt), functional group(s) name (2pts) and IUPAC name (2pts) of the followin...

1. Question: Consider the reaction: 2HgO(s) → 2Hg(l) + O2(g) Which of the following statements is correct? 2. Question: Which of the following statements regarding oxidation-reduction reactions is correct? 3. Question: Select all of the following atoms that have an oxidation number of 0 in this reaction: 2HI(g) → H2(g) + I2(g). 4. Question: Which of the following molecules would be classified as alkenes? Select all that apply. 5. Question: What is the name of the compound CH3-CH2-CH2-CH2...

• Question: The Scientific Method • Question: Density • Question: Metric; Measurement conversions (metric to metric only) • Question: Avagado’s Number, mole • Question: Molar Mass • Question: Atomic Number, atomic mass, isotopes, number of protons, electron, neutrons • Question: Calculating Bonds • Question: Naming element from electron orbital configuration • Question: Determining the molecular mass for a named molecule • Question: Nobel Gasses • Question: ...

1. Question: The correct isotope symbol for the isotope containing 1 proton and two neutrons – He 2. Question: Which are the elements with the followingelectronic configuration: 3. Question: Provide 4 examples of substances with ionicbonds 4. Question: Name thefollowing: 5. Question: A gas is enclosed in a 10.0 L tank at 350 mm Hg pressure. Ifthe gas is pumped into a 23.00 L vessel, what is the newpressure 6. Question: The molarity of a solution that contains 12.5 g of KClO3 in 3.2 liter ...

1. Question:Identify each of the following as a substance or a mixture. 2. Question:Which of the following mixtures are homogeneous and which are heterogeneous? 3. Question:Change the unit for each of the following measurements by replacing the power of ten with an appropriate SI prefix. 4. Question:Carry out the following conversions. 5. Question:How many millimeters are there in 1.00 cm? In 1.83 m? 6. Question:What is the density, in grams per milliliter, of (a) a salt solution if 37.5 mL...

1. Question:Joe conducts an experiment to test the effectiveness of a new drug for cancer.Which of the following variables would be easiest to control? 2. Question:A mixture containing 50 grams of carbon and 75 grams of oxygen is sealed in a flask. The total mass of the system is 225 grams. The flask is heated to cause the carbon and oxygen to react. The sealed flask ismassed. What is the mass of the sealed flask? 3. Question:Aluminum has a density of 2.7 g/cm3. What would be the mass, in g,...

Learning Objectives • Give examples of acids and bases from everyday life • Define pH and identify acids and bases using the pH scale • Apply the Bronsted-Lowry definition of acids and bases to chemical compounds • Describe the amphoteric and self-ionization capacity of water • Calculate the pH of a strong acid and base in solution • Assess whether a neutralization reaction will occur • Evaluate the outcome of simple acid-base reactions Introduction Have you ever consumed ...

Learning Objectives • Explain the physical concepts of temperature and absolute zero • Define the relationship between pressure, volume and temperature in gases using gas thermometry • Apply the Ideal Gas Law Introduction Just because Celsius, Fahrenheit and Kelvin defined their own temperature scales and named them after themselves, it doesn’t mean that you can’t create your own! In the Ideal Gas Law simulation, you will define the physical concept of temperature and absolute zer...

Learning Objectives • Explain the physical concepts of temperature and absolute zero • Define the relationship between pressure, volume and temperature in gases using gas thermometry • Apply the Ideal Gas Law Introduction Just because Celsius, Fahrenheit and Kelvin defined their own temperature scales and named them after themselves, it doesn’t mean that you can’t create your own! In the Ideal Gas Law simulation, you will define the physical concept of temperature and absolute zer...

Required Resources Read/review the following resources for this activity: • Textbook: Chapter 9, 10, 13 • Lesson Initial Post Instructions While we often do not realize it, acidic and basic solutions are a part of our daily lives.Pick a solution in your home, work, or even outside (be sure to check the label to makesure that whatever you are measuring is nonhazardous and water based). Somepossible solutions are shampoos, beverages, still water in your backyard, contactsolution, etc. Res...

1. Question: Zinc metal will react with aqueous hydrochloric acid to produce aqueous zinc chloride and hydrogen gas. Which of the following is the complete, balanced equation for this reaction? 2. Question: Determine the molar mass of the molecule Boron Tri fluoride. 3. Question: In the figure shown, is a chemical reaction occurring? 4. Question: Balance the following skeletal equation: Li(s) + H2O(l) → LiOH(aq) + H2(g). 5. Question: How many atoms of O are in one molecule of the material ...

1. Question: Magnesium metal can react with hydrochloric acid to produce magnesium chloride and hydrogen gas. Which of the following chemical is the complete and balanced representation of this process? 2. Question: Determine the molar mass of the molecule BoronTrifluoride 3. Question: Does the image show atoms changingstates? 4. Question: Balance the skeletal equation Li(s) +H2O(f)--LiOH(aq)+H2(g) 5. Question: HowmanyatomsofOareinthemoleculeofthematerial Al(NO3)3 6. Question: For the re...

Learning Objectives: • Explain the relationship between mass, molecular weight, and numbers of atoms or molecules and perform calculations deriving these quantities from one another • Perform mass-to-mass stoichiometric calculations via conversions to moles • Identify the limiting and excess reagents in a chemical reaction • Calculate the theoretical, actual and percent reaction yield • Define Avogadro’s number and describe the mole quantification of matter Introduction: Did ...

1. Question:A reaction that releases energy as it is classified as an ____while a reaction that absorbs energy as it occurs is classified as an ____. 2. Question:Which coefficient is placed in front of potassium to balance the following equation?K+H2SO4-K2SO4+H2= ____ 3. Question:Which coefficient is placed in front of HCI to balance the following equation?Ca(OH)2 +? HCICaCl2 +H2O = ____ 4. Question:Sodium reacts with oxygen to form sodium oxide and has the following chemical equation:...

Learning Objectives: • Prepare an aqueous solution of a specific concentration from a pure salt • Correctly use an analytical balance, a volumetric pipette, a volumetric flask, and a measuring cylinder • Explain the relationship between molarity and mass concentration Introduction Prepare to become a solution champion! In this simulation, you will complete all the steps involved in preparing an aqueous solution of a given molarity from ammonium chloride – a water-soluble salt. Use ...

1. Question: Match the neutral atom or ion to the correct number of valance electrons. 2. Question: Match the atom or ion to the correct electron configuration. 3. Question: Which of the following combinations of elements in a compound would be ionic? 4. Question: Which of the following compounds would you expect to contain covalent bonds? Choose all that apply 5. Question: Based on VSPER theory, predict the molecular shape of the molecule CBr4. 6. Question: Which of the following atoms con...

Learning Objectives: • Describe the structure and organization of the periodic table • Classify elements of a family based on their location in the periodic table • Distinguish metals from other element classes based on typical characteristics • Use the flame color test to identify metals based on their position in the periodic table • Explain valence electrons and oxidation state of a main group element to its position in the periodic table • Describe the main trends among gr...

Hello everyone! For this weeks discussion I will be doing option 2 the topic of genetics in forensic science.

1.) Question:For the following molecule CaF2 provide cation, anion bond name 2.) Question:Name of the compound PBr5= ____ 3.) Question:For the following molecule Mg3(PO4)2 _____ 4.) Question:Write the chemical formula for the following compound: ammonium sulfate = ___ 5.) Question:The maximum number of electrons that reside in the n+3 level is ___. 6.) Question:How many electrons are there in Magnesium atom? 7.) Question:Which is an impossible electron configuration? 8.) Question:The grou...

Learning Objectives • Describe the formation of ionic and covalent bonds • Identify anions and cations • Apply the octet rule • Describe ionic lattice structure • Draw Lewis dot structures • Explain the formation of single, double, and triple bonds • Distinguish between ionic compounds and covalent compounds Introduction Have you ever wondered how atoms are held together? In this simulation, you will learn the basics about atomic bonding in ionic and covalent compounds, an...