are all more reactive than copper. ● (2) I believe this solution to be Sodium Sulfate because of the following reasons: ○ Blah blah blah ○ Blah blah ○ blah blahhh Unknown 1 ● NaCl ○ ○ ○ ○ ○ Unknown 2 yellow flame 7 ph precip with agno3 therefore one of the halides (cl‚ br‚ i) white solid from evaporation conductive ● Water ○ no residue when evaporated ○ almost neutral ph ■ ^my group got pH 9 tho?? ○ no conductivity there was conductivity for 2 contamination could have been present causing the conductivity
Premium Solubility Sodium chloride Sodium hydroxide
creating Groups and adding Users to Groups? By creating groups you can get people access to the information that they need to get to. When a user is created and added to a group that user then has the access permissions of the group that has been made. 2. Given a scenereo where there are 5 database admins that may periodically need access to a given system. Discuss a better concept to better manage the admins access permissions. Break down admin responsabilities and only give them the access for what
Premium Password User Login
Assignment Chapter 2 Concept Explorations 2.25. Average Atomic Mass Part 1: Consider the four identical spheres below‚ each with a mass of 4.00 g. a. Calculate the average mass of a sphere in this sample. (4.00 + 4.00 + 4.00 + 4.00)/4= 16.00/4= 4.00g Part 2: Now consider a sample that consists of four spheres‚ each with a different mass: blue mass is 4.00 g‚ red mass is 3.75 g‚ green mass is 3.00 g‚ and yellow mass is 1.25 g. * a. Calculate the average mass of a sphere in this sample
Premium Atom Isotope Neutron
CELL STRUCTURE CELL THEORY: Structural and functional unit of all living things New cells arise from already existing cells Cells contain information that instructs growth. This information can be passed onto new cells. MICROSCOPES: There are two main types of microscopes: Light and Electron Electron Micrographs- shown in colour LIGHT ELECTRON Uses beam of light Magnification = x1500 Resolution = 200 nm Wide range of specimens can be used Samples are fairly quick + easy to prepare
Premium Cell Cell membrane Cell wall
precipitation is carried out slowly‚ which can be done by dissolving Ca2+ and C2O42- in acidic solution & gradually increasing the pH by thermal decomposition of urea‚ Co(NH2)2. Equation : Co(NH2)2 + 3H2O CO2 + 2NH4+ + 2OH- Methyl red indicator: [below pH 4.8 – red ; above pH 6.0 - yellow] Sample experimental Data Funnel #1 Funnel#2 Average Mass of glass funnel‚ initial (grams) 35.2653 34.5269 34.8961 Mass of glass funnel + ppt. after drying (grams) 35.6653 34.9569 35.3111 Mass of product
Premium Hydrogen Carbon dioxide Ion
In the Lewis symbol for a fluorine atom‚ there are __________ paired and __________ unpaired electrons. A) 4‚ 2 B) 0‚ 5 C) 2‚ 5 D) 6‚ 1 E) 4‚1 2. Which of the following would have to gain two electrons in order to achieve a noble gas electron configuration? O Sr Na Se Br A) Sr B) Br C) Sr‚ O‚ Se D) Na E) O‚ Se 3. The electron configuration of the S2- ion is __________. A) [Ne]3s23p2 B) [Ne]3s23p6 C) [Kr]3s22p-6 D) [Ar]3s23p2 E) [Ar]3s23p6 4. The ion NO- has __________
Premium Molecule Atom Electron configuration
LearnName_SalesProgram.ps1 which will do the following. Allow the sales clerk to the following at the console: 1. Enter the book title –data type string a. If the user enters a null string‚ the program should beep and redisplay the needed value 2. Enter a one sentence description of the book -- data type string 3. Enter the book’s ID number. Code numbers are alpha-numeric (e.g. ROM482‚SCI233‚BUS400) a. If the user enters a numeric value‚ the program should prompt for alphanumeric 4. Enter
Free Computer Operating system File system
Who sang at the Grammy’s in Spanish in the late 1990s? What was the reaction? Ricky Martin shocked the audience by singing in Spanish at the 1990’s Grammy Awards. Eventually‚ the audience gave Martin a standing ovation for his brilliant song. 2. When did Latin music burst back on the scene? What song brought it back to the mainstream? What effect did it have? Latin music came back onto the scene 15 years before Ricky Martin’s performance with Gloria Estefan’s “Conga”. It gave
Premium Jazz Rock music Singing
The Chemistry of Lipids Experiment #8 Objective To observe the solubility of lipids in polar and nonpolar solvents and to compare saturated and unsaturated fats in their chemical reaction with bromine. The percent fat in a food will be determined by extraction of the fat and weighing it. Introduction Lipids‚ by definition‚ are natural substances that do not mix with water but dissolve in organic solvents. There are several classes of lipids‚ including: fatty acids‚ waxes‚ triacylglycerols
Premium Fatty acid Fat Unsaturated fat
1. What are the five steps of a hacking attack? Reconnaissance ‚ Scanning‚ Gaining Access‚ Maintaining Access ‚ Covering Tracks 2. During the reconnaissance step of the attack‚ describe what task Zenmap GUI performs to do passive OS fingerprinting. Nmap uses the –O option to perform OS fingerprinting. The process monitors and captures network traffic. The traffic is then analyzed for patterns that would suggest which operating systems are in use. 3. What step in the hacking attack process
Premium Windows 2000 Microsoft Operating system