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

1 when h2 gas was released by the reaction of hcl with zn

1. When H2 gas was released by the reaction of HCl with Zn, the volume of H2 collected was 66.0 mL at 26 °C and 750 mmHg . A. What is the volume of the H2 at 0 °C and 1.00 atm pressure (STP)? 2. Express the temperature n ...

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 ...

Question 1di-lithium is composed of two lithium atoms which

Question 1 Di-lithium is composed of two lithium atoms. Which of the following statements regarding di-lithium or lithium is FALSE? They oxidize very slowly in air. They remain in the solid state even after getting fragm ...

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 ...

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?

Simple cubic packing when r mno has either nacl type

Simple Cubic Packing when r+ MnO has either NaCl type structure or the CsCl type structure. The edge length of the MnO unit cell is 4.47 x 10-8 cm and the density of MnO is 5.28 g/cm3. A) Does MnO crystallize in the NaCl ...

Please respond to one of the below questions in detail

Please respond to ONE of the below questions in detail. These questions are taken from Sam Kean's "Questions and Topics for Discussion".  Your response needs to be 1-2 pages long, or approximately 700-900 words. Consider ...

The volume of a sample of nitrogen is 600 liters at 35oc

The volume of a sample of nitrogen is 6.00 liters at 35oC and 740 torr. What volume will it occupy at STP?

Subject chemistry amp physics please answer all questions

(Subject: Chemistry & Physics) Please answer all questions. Please be clear. Short answers are fine. 3-4 sentences. 1) If a feather and a lead ball are dropped from 1000m in AIR (vacuum) , will they hit the ground at the ...

Explain the geochemical differences between acidic mine

Explain the geochemical differences between acidic mine waters and basic mine waters.

  • 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

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

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen