liquid and gas - diagram) - elements‚ compounds and mixture (3 diff substances given) Ch.5 - the candle in gas jar (experiment) - the charcoal and kerosene burning experiment. - germinating seeds + cockroach (experiment of c.dioxide using hyd. carbonate indicator‚ Ch.6 - energy conversion (diagram - 3 objects : bicycle dynamo) - renewable + non renewable energy Ch.7 - the candle experiment (white + black flask) - sea and land breeze -convection (boiling) - bimetallic strip (diagram)
Premium Water Oxygen Cell
of Antacid were tested and neutralized with the Hydrochloric acid‚ then the one that would be the most effective antacid would be the TUM’s Ultra Strength Calcium because it is larger and because it is Ultra Strength‚ it should be more effective. Materials • Compliment Extra Strength Antacid Tablet • TUMS • Life Ultra Strength Calcium Antacid Tablet • Goggles • Thymol Blue • Mortar and Pestle • Beakers • pH probe • Clamp • Retort Stand • Pipette-Graduated • Hydrochloric Acid(HCl)
Premium Hydrochloric acid PH Gastric acid
Introduction When the water from the rain collects impurities by dissolving the salt that is exist in the soil. These particular salts include ions of sodium‚ magnesium‚ calcium‚ iron‚ and other metals. These particular impurities are what you will see on the glass door of the shower after it has been cleaned. Calcium ions are what cause the majority of water hardness. The water hardness arises from the existence of metal ions with a charge of +2 or higher. Water hardness is reported in
Premium Calcium Water Hard water
Acid‚ 6 M - 8 mL in Dropper Bottle 1 Nitric Acid‚ 6 M - 2.5 mL in Pipet 1 Organic Reagent - 1.5 mL in Vial 2 Pipet‚ Empty Short Stem 1 Silver Nitrate‚ 0.1 N - 6 mL in White Dropper Bottle 1 Sodium Bromide‚ 0.1 M - 2.5 mL in Pipet 1 Sodium Carbonate‚ 0.25 M - 2.5 mL in Pipet 1 Sodium Chloride‚ 0.1 M - 2.5 mL in Pipet 1 Sodium Iodide‚ 0.1 M - 2.5 mL in Pipet 1 Sodium Phosphate‚ 0.1 M - 2.5 mL in Pipet 1 Sodium Sulfate‚ 0.1 M - 2.5 mL in Pipet 1 Sodium Sulfide‚ 0.1 M - 2.5 mL in Pipet 1 Unknown
Premium Chlorine Sodium chloride Ammonia
Topic: “Describe the way in which coral reefs have contributed to social and cultural life in the Caribbean.” Corals are marine animals which usually live in compact colonies of many identical polyps. Corals secrete calcium carbonate which forms reefs. Such reefs and are located near the Equator in tropical and subtropical waters. The largest coral reef is the Great Barrier Reef located off the coast of Queensland‚ Australia. Coral reefs are often referred to as the “rainforests of the ocean”
Premium Coral reef Great Barrier Reef Coral
are no direct effects of alkalinity on fish and shellfish‚ however‚ it is an important parameter due to its indirect effects‚ including the protection of aquatic organisms from major changes in pH. In low alkalinity waters‚ where CO2 and dissolved carbonates are at low concentrations‚ photosynthesis may be inhibited‚ thus restricting phytoplankton growth. Levels above 175 mg CaCO3/L reduces natural food production in ponds which‚ in turn‚ leads to a decrease in optimal production. Salt water is slightly
Free Carbon dioxide Oxygen Water
hydration reactions by hydrolysis‚ and also testing substances for efflorescence of deliquescence. Procedure: A. Identification 1. Place 0.5 grams of each compound (Nickel Chloride‚ Potassium Chloride‚ Sodium Tetraborate‚ Sucrose‚ Calcium Carbonate‚ and Barium Chloride) in a small dry test tube. 2. Heat gently with a burner flame and observe carefully. If droplets of water appear on the test tube it may be a hydrate. Note the nature and color of the residue. 3. Let the tube
Premium Management Marketing Strategic management
Chapter 41 The effect of changes in concentration and temperature on chemical equilibria Class practice 64 Think about 67 Chapter exercise 68 Part exercise 76 Chapter 36 Rate of chemical reaction Class Practice A36.1 (p.36-3) (a) Putting a piece of calcium in water (b) Adding silver nitrate solution to sodium chloride solution A36.2 (p.36-7) (a) Rate of formation of NO2(g) == 0.24 mol dm–3 s–1 (b) From the equation‚ mole ratio of NO2 to N2 = 2 : 1. Rate of consumption of N2(g) =× Rate of formation
Premium Mole Carbon dioxide Hydrochloric acid
Kingdom Protista: Characteristics Mostly unicellular‚ eukaryotic cells Reproduce asexually or sexually by conjugation Exhibit all three modes of nutrition Photosynthesis Ingestion Absorption Ultimately spawned all multicellular kingdoms Very diverse kingdom Difficult for taxonomists to agree on classification Diverse Modes of Nutrition Use diverse modes of nutrition Ingest
Premium Protist Algae
Hydrated Salt Chemistry 1300 Instructor: 2/8/12 Abstract: The purpose of this experiment was to determine the percent by mass in a hydrated salt‚ as well as to learn to handle laboratory apparatus without touching it. The hydrated salt‚ calcium carbonate‚ was heated with high temperature to release water molecules. Gravimetric analysis was used in this experiment to determine the percent by mass of water in a hydrated salt. The hypothesis of this experiment was accepted on the basis that the
Premium Water Chemistry Molecule