Elements in Group IA are called Alkali metals. All the elements in this group form ___________ ions with a positive ________________ charge when they chemically react. ______________ is the most reactive element in this group. These elements are very reactive. fill in the blanks
provide the names and descrptions of 4 types of quantitative chemical analysis techniques witch could be used to determane the concentration or percentage of elemants in a given sample of a material. include the names of the types of equipment used in the techniques. include sources
In a decomposition reaction: A. the reactants are usually a metal and a nonmetal B. one of the reactants is often water C. the reactants are generally two ionic compounds in aqueous solution D. energy in the form of heat or light is often produced
Consider the reaction A + B ==> C + 3D A solution was prepared by mixing 50.0 ml of 1.00 x 10 M of A, 100.0 ml of 2.00 x 10 M of -3 -3 B, 10.0 ml of 1.0 M of C, and 75.0 ml of 1.50 x 10 M of D. At equilibrium […]
Analysis of an Air-Sampling Report Compose a two- to three-page analysis that addresses the following questions: 1. What is the purpose of the exposure assessment? 2. Why was the exposure assessment conducted? 3. What type of sampling (personal or area) was conducted, and why? 4. What are the chemicals that were sampled, […]
Chemistry I need to plot the observed emf in mV vs logarithm of ppm F to obtain a calibration curve. From a prepared stock solution of 100 mL and the KCl molarity is 0.1M for it. From dilution of this solution, a 20 ppm, 10ppm, 5ppm, 2.5ppm, and 1.25 ppm were made. Im not sure […]
Allicin is the compound responsible for the characteristic smell of garlic. An analysis of the compound gives the following percent composition by mass: C: 44.4 percent; H: 6.21 percent; S: 39.5 percent; O: 9.86 percent. Calculate its empirical formula. What is its molecular formula given that its molar mass is about 486g?
Define exposure assessment, and describe the seven steps involved in an exposure-assessment strategy. Apply each step to a scenario where you, as an industrial hygienist, are asked to describe a worker’s exposure to cadmium during a brazing operation
Two papers are required describing and analyzing two different religious systems or religious traditions. Attendance to the traditions particular service in required as part of these analysis. Describe, and analyze the major areas of the each belief system. Analysis of the belief system should include the following: 1. View of God, no God, or deities 2. What […]
CRITICAL THINKING REFLECTION – Review your past year taking organic chemistry. Write a reflection with a length of at least 400 words that includes the following discussion points: 1. How does organic chemistry benefit society and why is it important to study it? 2. What did I learn about myself and my thinking from […]
