science lt

• the higher the temperature the faster the rate of reaction
• the formation of new products will occur if the collision is effective
• A diluted acid solution will react slower than concentrated one.
• a powdered sugar will dissolve faster than sugar cube even with the same mass because the powdered sugar has more exposed surface area.
• a catalyst is a substance that increase the rate of a chemical reaction and neither consumed nor changed.
• 1. The plus sign in a chemical equation means "reacts with
• The right arrow means formation of product.
• 1. The coefficients must be in the smallest whole number ratio in a chemical reaction.
• The symbol (aq) means aqueous solution of dissolved in water.
• 1. Avogadro's number is equivalent to - 6.022 × 10^23
• limiting reactant is completely consumed in a chemical reaction.
• actual yield is the amount of product formed in the laboratory.
• theoretical yield is the amount of product formed based on calculation.
• 1. Percent yield is the percent ratio between actual yield to the theoretical yield
• 1. Molar mass is the sum in total mass in g of 1 mol of a substance.
• Chemical thermodynamics deals with the transformation of energy involved in the chemical reaction
• 1. In endothermic reaction the energy is absorbed from the surrounding to the system.
• 1. In exothermic reaction heat released out of the system.
• System is the area or region chosen for study.
• Surrounding is the area or region not chosen for study.
• Non-Renewable resource takes too long to replace or cannot be replaced at all.
• Renewable resource can be made again by nature or by people in a practical amount of time
• Wind energy is a result of heating of earth's surface due to solar energy.
• Coal is sedimentary rock composed predominantly of solid organic materials with a greater or lesser proportion of mineral matter.
• geothermal energy is energy coming from the heat under the Earth.
• detergents are synthetic, water-soluble cleansing agents that contain chemicals derived from petroleum or coal.
• soap is composed of sodium or potassium ion paired with long hydrocarbon chain fatty acids.
• Muriatic acid has HCI as its active ingredient.
• Sodium Lauryl Sulfate is the common surfactant in most detergents.
• Hardwater contains mineral ions.
• antimicrobial are drugs that fight fungi, bacteria, viruses, and protozoans.
• Waxes are substances that are very resistant to moisture and microbial attack.
• Solvents are added to dilute or homogeneously disperse other components in cosmetics.
• moisturizer maintain the wetness of the skin.
• antioxidants prevent antiradicals from damaging the cells.
• muriatic acid is composed of sodium or potassium ion paired with long hydrocarbon chain fatty acids.
• disinfectant rapidly inactivate or destroy various type of microorganism on surfaces of nonliving objects.
• micelles is the property of surfactants to trap dirt or hold grease.
• water is the only inactive ingredient in muriatic acid.
• active ingredients that enable it to serve its purpose.