Properties of Water Introduction: Water’s chemical description is H2O. As the diagram to the left shows‚ that is one atom of oxygen bound to two atoms of hydrogen. The hydrogen atoms are "attached" to one side of the oxygen atom‚ resulting in a water molecule having a positive charge on the side where the hydrogen atoms are and a negative charge on the other side‚ where the oxygen atom is. This uneven distribution of charge is called polarity. Since opposite electrical charges attract‚ water molecules
Premium Atom Water Electric charge
flame spectra bands for each water sample. Use the Flame Spectra Chart and Symbol table below to identify the elements (metals) in the different water samples. Symbol | Name | Cd | Cadmium | Li | Lithium | Na | Sodium | K | Potassium | Rb | Rubidium | Cs | Cesium | Hg | Mercury | Ne | Neon | Sample | Number of Bands | Colors Present in Spectrum | Probable Elements In Sample | Spring Water Sample | 8 | Grey‚ aqua‚ yellow‚ red | Li‚ Cd | Bottled Water Sample | 2 | Yellow | Na
Premium Water
Risk: A potential event that may have a detrimental effect on time‚ cost‚ quality and deliverables. Issue: This is an unpredicted event that requires a decision otherwise a negative effect on the project may result. Risk management - general approach Risk management is something that all projects need. The depth of planning may vary. It is not easy. What general approaches can you think about? Typical areas where risk (see also ’The Complete Risk management package’) will require assessment
Premium Project management Management
n 8 POTENTIAL FINGERNAIL HEALTH WARNINGS INTRODUCTION: Fingernails and disease don’t go together in most minds… but they should. Your fingernails can give you valuable health warnings and signal the presence of serious disease. Take a good look at your nails. Hold a hand level with your nose about a foot out from your face and scrutinize each one. Look at the curves‚ dips‚ ridges‚ and grooves. Check out how thick or how thin they are and if your nails are chipped or broken. Make a note of
Premium Nail
Full Length Research Paper Nutritional potential of two leafy vegetables: Moringa oleifera and Ipomoea batatas leaves Ibok Oduro‚ W. O. Ellis and Deborah Owusu* Department of Biochemistry and Biotechnology‚ Kwame Nkrumah University of Science and Technology‚ Kumasi- Ghana. Accepted 30 January‚ 2008 Levels of some nutrients in Moringa oleifera leaves as well as seven varieties of sweet potato (Ipomoea batatas) leaves were determined using standard analytical methods. Crude protein ranged from
Premium Sweet potato Potato Nutrition
Tea production potential in Pakistan By Mohammed Arifeen Tea is the world’s most favored beverage due to its general acceptability‚ comparative cheapness and advantageous effects. It is the second most drank beverage after water. The tea plant originated from South East China and slowly spread to Indo-Pak subcontinent‚ Sri Lanka and further into tropical and sub tropical countries Pakistan was a bulk producer and exporter of tea until 1970 but after the loss of its eastern wing (than known
Premium Tea Green tea Black tea
Class: 4Sc1 Teacher: Pn XX Group Name: XX INTRODUCTION A water rocket is a type of model rocket using water as its reaction mass. The pressure vessel—the engine of the rocket—is usually a used plastic soft drink bottle. The water is forced out by a pressurized gas‚ typically compressed air. The term "aquajet" has been used in parts of Europe in place of the more common "water rocket" and in some places they are also referred to as "bottle rockets" (which can be
Premium Rocket
how lucky we actually are and how we take the goodness we have for granted. The struggles some of us may have now does not compare to the struggles the women in this video have gone through. It sure made me think twice about things. The symbolism of water in this movie was incredible though. Symbolism of water through out the film was rain and rivers as well as drinking water‚to purify the characters and wash away negativities that they had lived through. This movie did help me learn much more about
Premium English-language films Film Reality
Effect of Temperature ( C ͦ) on Enzyme Catalase Activity in potato Aim: To investigate the Effect of temperature (10‚ 37‚ 60) Celsius (C ͦ) on enzyme catalase activity in potato using 2% of hydrogen peroxide (H202) as the substrate measuring the height (cm) of oxygen gas (bubbles) and calculating the volume of oxygen bubbles produced (cm3) Introduction: Enzymes are biological catalysts that speed up metabolic reactions without being affected. They lower the activation energy needed to start
Premium Catalase Enzyme Gas
Purpose: How will salt and plain water affect plant cells? Hypothesis Clear water: If you place carrots and celery in plain water they will become flaccid and then eventually start to loose its colour and pieces of the celery or carrots will fall off. I know this because the vegetables will continue absorbing water putting the vegetable in a hypotonic solution. Pieces of the vegetable could break off because the cells are not getting what they need. The cells need to create glucose and oxygen
Premium Cell wall Oxygen Seawater