Questions and answers by

Mutinta simwale

Questions (25)

A sample of a compound contains 1.52g of nitrogen and 3.47g of oxygen the molar mass of this is between 90g ,Determine the
1. 1 answer
2. 130 views
Ascorbic acid causes scurvy is a compound of 40.92% of carbon, 4 58% of hydrogen and 54.50% of oxygen by mass .Determine the
1. 3 answers
2. 97 views
Find the inverse of y=4_1/x
1. 1 answer
2. 56 views
Kinematics
1. 2 answers
2. 91 views
What is an organism
1. 1 answer
2. 65 views
Convert the following units to their S.I units (i) 10g (ii)100mm(iii)250cm(v) 500mg and 20km
1. 1 answer
2. 81 views
Find the units and dimensions of 'G' the gravitational constant in the following equation, F=(GM2M1/r squared where F is the
1. 1 answer
2. 103 views
What are nucleic acids
1. 3 answers
2. 65 views
Draw the structures of ribose and deoxyribose
1. 3 answers
2. 83 views
Describe carbohydrates, monosacharides ,polysaccharides and disacharides
1. 3 answers
2. 88 views
List four features that are in prokaryotic cells but not eukaryotic cells
1. 1 answer
2. 83 views
What name is in carbohydrates that qualifies it to be called carbohydrates
1. 3 answers
2. 80 views
What are the four types of lipids
1. 1 answer
2. 69 views
Give 2 storage and 2 structures of carbohydrates in living things
1. 1 answer
2. 74 views
What are biological importance of density and freezing
1. 3 answers
2. 70 views
Describe Eukaryortic cells
1. 7 answers
2. 61 views
What is the difference between DNA and RNA
1. 1 answer
2. 72 views
Define nucleotides
1. 3 answers
2. 67 views
What are the nucleotides for DNA and RNA
1. 1 answer
2. 69 views
Give functions of water in living things
1. 5 answers
2. 70 views
What four properties of water
1. 1 answer
2. 66 views
Give a brief description of different levels of proteins
1. 1 answer
2. 96 views
What are two functions of proteins
1. 1 answer
2. 60 views
What elements make up proteins
1. 7 answers
2. 79 views
Describe steroids
1. 3 answers
2. 96 views

Answers (13)

A sample of a compound contains 152g of nitrogen and 3.47g of oxygen, the molar mass of this compound is between 90g,determine the molecular formula and calculate the molar mass of a compound
Define DNA and RNA
What is the difference between the deoxyribose and ribose
Draw the structure of deoxyribose and ribose
Write the general formula for carbohydrates
Explain the functions of lipids and describe fats
What are the main organism involved in Eukaryoyic cells
What are the main organism involved in prokaryotics cells
What is the difference between prokaryotic cells and Eukaryotic cells
What is the difference between DNA and RNA
What are the nucleotides for DNA and RNA
Draw and label the structure of prokaryotic cell
Describe triglycerides

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