Soluble alloys Study guides, Class notes & Summaries

Equilibrium (habor process), alloys, LCAs, water questions with verified solutions Why do we need fertilizer’s - correct answer -plants need nitrogen to grow + make proteins When the crop is harvested, most parts don't rot back into the soil -> less nutrients for next plant -nitrogen is insoluble in water and plants need to absorb a soluble form of nitrogen -nitrogen from the air -> nitrogen compounds mean they can be absorbed What is equillibrium? - correct answer the rate...

Accurate - Answer A measurement is considered accurate if it is judged to be close to the true value. Acid - Answer A sour substance which can attack metal, clothing or skin. The chemical opposite of an alkali. When dissolved in water, its solution has a pH number less than 7. Acids are proton (H+ ion) donors. Activation Energy - Answer The minimum amount of energy needed to start a reaction. Alkali - Answer A soluble base with a pH greater than 7. Makes OH- ions in water. Al...

Dental Materials NBDHE Exam Review questions and answers, 100% Accurate, verified. *BIS-GMA stands for - -Bisphenol a-glycidil methacrylate Adhesion - -The chemical attraction between unlike molecules Amalgam - -By definition: an alloy of mercury In dentistry: an alloy of mercury with silver, copper, tin, and zinc Silver, a base metal, susceptible to corrosion Copper added to minimize the corrosion (gamma II phase eliminated) Amalgam desirable features - -Durable Similar compressive st...

What is known as a materials ability to conduct temperature changes; transfer of heat?*** Thermal conductivity Enamel/dentin are poor thermal conductors, when compared to what material?*** Amalgam/gold alloys These types of properties are closet to enamel?*** a. gold alloys b. amalgam c. composite/ceramics c. composite/ceramics What is the shrinkage or expansion of a material; usually expressed as a percentage of an original length or volume called? Dimensional change ...

AQA GCSE Chemistry Glossary of Key Terms (All Units) Study Guide 2023.Accurate - ANSWER A measurement is considered accurate if it is judged to be close to the true value. Acid - ANSWER A sour substance which can attack metal, clothing or skin. The chemical opposite of an alkali. When dissolved in water, its solution has a pH number less than 7. Acids are proton (H+ ion) donors. Activation Energy - ANSWER The minimum amount of energy needed to start a reaction. Alkali - ANSWER A soluble...

Equilibrium (harbor process), alloys, LCAs, water Questions and Answers 2023 Why do we need fertilisers -plants need nitrogen to grow + make proteins When the crop is harvested, most parts don't rot back into the soil -> less nutrients for next plant -nitrogen is insoluble in water and plants need to absorb a soluble form of nitrogen -nitrogen from the air -> nitrogen compounds mean they can be absorbed What is equillibrium? the rate of the forward reaction is equal to the...

1. For lower premolars, the purpose of inclining the handpiece lingually is to, A. Avoid buccal pulp horn B. Avoid lingual pulp horn C. Remove unsupported enamel D. Conserve lingual dentine - ANSWER A. Avoid buccal pulp horn Explanation 1- avoid BUCCAL pulp horn 2- conserve ling. dentine So take A and B if available 2. For an amalgam restoration of a weakened cusp you should, A. reduce cusp by 2mm on a flat base for more resistance B. reduce cusp by 2mm following the outli...

Enamel and dentin are poor ___________________ compared to amalgam and gold alloys* - ANSWER-thermal conductors What is a materials ability to conduct temperature changes? - ANSWER-thermal conductivity What is the shrinkage or expansion of a material usually expressed as a percentage of an original length or volume? - ANSWER-Dimensional change What is a thermal property of material that quantifies how much a material will expand when heated and contract when cools? - ANSWER-Coefficient ...

Enamel and dentin are poor ___________________ compared to amalgam and gold alloys* - ANSWER-thermal conductors What is a materials ability to conduct temperature changes? - ANSWER-thermal conductivity What is the shrinkage or expansion of a material usually expressed as a percentage of an original length or volume? - ANSWER-Dimensional change What is a thermal property of material that quantifies how much a material will expand when heated and contract when cools? - ANSWER-Coefficient ...

NACE EXAM 1(verified answers) graded A+ already passed !2023 Anode - correct answer the electrode of an electrochemical cell at which oxidation occurs? Anode - correct answer Electrons flow away from the ______ in the external circuit. Anode - correct answer Corrosion usually occurs and metal ions enter the solution at the ______? Cathode - correct answer The electrode of an electrochemical cell at which reduction is the principal reaction? Cathode - correct answer Electrons flow ...