Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Chemistry Expert

It is a fine-documented fact that early civilizations almost without exception were situated along navigable river systems. Rivers were significant not only for fresh drinking water however also for transportation of people and goods, communication and for moving armies throughout warfare. Rivers were as well used for exploring the heart of continents once the coast area had been settled. There are five main rivers in Africa. They are, the Nile in the northeast, the Congo on the west coast flowing via the Congo Rain Forest and emptying to the Gulf of Guinea, the Zambezi River flowing from south central Africa via Mozambique and emptying to the Mozambique Channel, the Niger River in northwestern Africa and the Orange River in the very southwestern point of Africa. These rivers do give drinking water though there is a main difference between these rivers and those of say North and South America. The rivers in Africa just flow a few miles inland before waterfalls and cataracts of significant size are encountered. The Nile is the one exception flowing hundreds of miles before important falls bring ships to a halt.

Chemistry, Academics

  • Category:- Chemistry
  • Reference No.:- M936466

Have any Question? 


Related Questions in Chemistry

Analyzed individually two solutes have retention times of

Analyzed individually, two solutes have retention times of 17 s and 21 s with peak widths at half-maximum (w1/2) of 1.9 s and 2.8 s, respectively. If the two solutes are analyzed together, what would be the resolution on ...

Please create 1 synthesis you get to choose any starting

Please create 1 synthesis (you get to choose any starting material) but you should demonstrate all of the following reactions and the product: oxymercuration +hydroboration+ addition+ KMnO4 + hydrolysis + LDA . reactions ...

Jenny and mark complete a reactivity experiment by placing

Jenny and Mark complete a reactivity experiment by placing samples of metals into water. They initially place small shards of potassium into water and observe that hydrogen gas and potassium hydroxide solution are produc ...

Consider a pipe with a length of 435 cm if the temperature

Consider a pipe with a length of 43.5 cm. If the temperature of the air is 19.5 oC and the pipe is closed in one end and open in the other, what is the frequency of the third harmonic for the pipe? Post your answer in he ...

A mixture of gases has the partial pressures of 0308 atm

A mixture of gases has the partial pressures of 0.308 atm due to He, .259 atm due to N2, and the rest is due to O2. If the total pressure of the mixture is 752 mmHg, what is the partial pressure due to oxygen?

Assume that coal is pure carbon with a density of 1280 kgm3

Assume that coal is pure carbon with a density of 1280 kg/m3 and that the particle is spherical with an initial diameter of 0.015 cm. Air exists several diameters away 1) Nco= ____Noxygen 2) The more fraction of oxygen a ...

A 120 ml sample of a compound has a density of 144 gml what

A 12.0 mL sample of a compound has a density of 1.44 g/mL. What is the weight of the sample in g?

Dr pepper has 400g of sugar per 12 oz of liquid calculate

Dr. Pepper has 40.0g of sugar per 12 oz. of liquid. Calculate the molarity of this solution. Put that molarity into your regression line and calculate the density (all other things being equal) of this sugar solution. Sh ...

Calculate the molality of a solution prepared by dissolving

Calculate the molality of a solution prepared by dissolving 4.75g of C10H8 in 75.0 mL of C6H6 (l) of density, 0.879g/mL.

Instructionscandidates are to answer all questionsall parts

Instructions: Candidates are to answer ALL questions/ALL parts of questions This assessment is designed to assess the following learning outcomes of the module: 1. Discuss and critically evaluate the principles and appli ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro