Chemical Fertilizers vs. Organic Fertilizers INTRODUCTION Agriculture is the most primitive occupation of the people which mainly needs land to grow different crops for food and as raw materials for different industries. Industrial use of agriculture for supplying raw materials came much later. Originally land was used for agriculture to supply food for human beings by the use of organic manures particularly animal dung. At the beginning land was used in its natural form to grow food. Land contains
Premium Fertilizer Nitrogen Soil
Identifying Biological Molecules with Colorimetric Chemical Tests Objectives Perform a series of accurate tests on biological molecules to detect the presence of carbohydrates and proteins‚ as well as the action of an enzyme on specific molecules. Introduction Unknown biological molecules can be correctly identified using various tests‚ including colorimetric chemical tests. Colorimetric tests are when a chemical reagent‚ such as Benedict’s‚ is used on a substance or solution and a certain
Premium Carbohydrate Glucose Enzyme
3.1 Proteins Table 3.2 Biuret Test Tube Contents Final Color Conclusions 1 Distilled water Transparent‚ light blue‚ navy Possibly little protein with clear peptide or no protein at all 2 Albumin Dark Purple Proteins are present with purple peptides 3 Pepsin Purplish blue‚ darkish blue Proteins are present with purple or black colored peptides 4 Starch Light blue‚ really clear Possible little protein with clear peptide or no protein at all Our results are correct because water
Free Glucose Carbohydrate Fat
Two Types Organic fertilizers are made from naturally occurring substances‚ and include by-products or waste remains of the animals. Dead plants and dead animal remains are also often used as fertilizers in organic farming. They are naturally chemical-rich and contain high amounts of nitrogen‚ phosphorus and potassium (NPK). The main difference between a chemical and an organic fertilizer is that the former come out of a lab and the organic one comes from living beings. A chemical fertilizer
Premium Fertilizer Nitrogen Manure
BCR: Which Towel? A student asks a testable question: “Which brand of paper towel absorbs the greatest volume of water?” Design an investigation to provide an answer for the student. Be sure to include • the materials needed. • a numbered procedure. • the independent and dependent variables. • important data that will answer the question. • ways to help ensure the accuracy of the results. Materials: Several paper towels‚ a flat dish‚ bottled water‚ a thermometer‚ a tong
Premium Molecule Water Chemistry
2) B) 4 liters C) 6 x 1023 atoms D) 2 moles Which sample of O2 contains a total of 3.01 x 1023 molecules at STP? A) 16.0 grams B) 32.0 grams B) 6.02 x 1023 C) 2.00 moles D) 1.00 mole D) 1.20 x 1024 What is the total number of atoms contained in 2.00 moles of nickel? A) 118 C) 58.9 C) 1 liter of neon D) 1 gram of neon 3) 4) What quantity is represented by the symbol Ne? A) 1 mole of neon B) 1 atomic mass unit of neon 5) How many moles of hydrogen atoms are present in one mole of
Premium Atom Hydrogen Oxygen
Chemistry Institute Atom Economy Page 1 American Chemical Society --------------------------------------------------------------------------------------------------------------------- CLEANING UP WITH ATOM ECONOMY By Kathryn E. Parent‚ k_parent@acs.org Introduction Cleaning up the environment and‚ more importantly‚ preventing pollution are important issues in today’s world. The theme for the 2002 National Chemistry Week is “Chemistry Keeps Us Clean.” While the chemical industry is traditionally
Premium Chemistry Chemical reaction Stoichiometry
Chemical Fertilizer vs. Organic Fertilizer Fertilizers are the protein supplements for your plants. Fertilizers are used to enrich the soil with nutrients that it does not inherently have. Fertilizers should be used strictly as a deficiency-buster. Excessive use of different types of fertilizers kills the naturally present ingredients in soil too. Organic fertilizers are made from naturally occurring substances‚ and include by-products or waste remains of the animals. Dead plants and dead animals
Premium Fertilizer Nitrogen Manure
The Atom The basic idea of the atom was adopted by scientists thousands of years later because it explained new discoveries in the field of chemistry. Long after chemical atoms were found to be divisible‚ and even after smaller‚ truly indivisible particles were identified. Over time theories of the atom changed. The nature of atoms in philosophy varied a lot over time and between cultures and schools. The Plum Pudding Model was proposed in 1904 before the discovery of the atomic nucleus in order
Premium Atom Quantum mechanics Fundamental physics concepts
Modeling Molecules Introduction: You can represent a molecule two-dimensionally‚ as a structural formula or electron dot structure. Although such models are useful in certain contexts‚ they do not accurately represent bond angles between atoms or shapes of molecules. In this activity‚ you will construct three-dimensional models of several molecules. You will use electron dot structures and structural formulas to inform how you construct the three-dimensional models. Materials: jelly beans
Premium Oxygen Atom Methane