4. The process of burning materials with the aid of oxygen is A. conduction B. combustion eon C. oxidation D. reduction
Q: thermal energy needed to boil a liquid is the heat of ______ A. condensation B. fusion C.…
A: The energy needed to convert the phase of a liquid into vapour is termed as thermal energy.
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A: Air - drying varnish: Explanation: Varnish forms a durable, clear layer when the solvent evaporates…
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A:
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A: This is a heating curve. The heating curve generally starts with a solid that follows liquid and gas…
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A: Energy requirement per hour,E=525 Calories/hr
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A:
Q: What does it mean that the mass of a body has the property of additivity?
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A: A Mega-Watt-hour is equal to a thousand kilo-Watt-hours. A Giga-Watt-hour is equal to a thousand…
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A:
Q: A block of mass 1.0 kg is attached to a horizontal spring that has a force constant of 2,000 N/m as…
A: Given:mass of block, m = 1kgcompression of spring, xmax = -3.0 cm = -0.03 mspring constant, k = 2000…
Q: 5. Why do you think different substances heat up and cool down at different rates?
A: Consider the mass of the substance is m and the increase or decrease in the temperature is ΔT.
Q: 3. Classify The following statement as a theory or a law:Heating the air in a hot-air balloon causes…
A: To find if the statement is a theory or law.
Q: Cooking eggs: Burning wood: Starting a chemical heating pad: Running a gas-powered generator:
A:
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A: Heat combustion, H = 4×10³ cal/gEnergy, E = 4.76×10⁵ BTU = 4.76×10⁵×252 cal = 1.2×10⁸ calMass of…
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A: Tthe coefficient of thermal expansion (CTE) depends on the atomic structure and bonding in each…
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- 12. What is the change in temperature of 2.2 kg of the following substances if 8.5 x 10^3 J of thermal energy is added to each of the substances: a) Brass b). glass c). iron. d). Methanol. e). Zinc16. Microscopic pockets of water continue to exist at (-18°C) and even much lower temperaturesul: A. True. B. False.2. I mix 1 L of 0.1 M ammonium phosphate with 1 L of 0.1 M stronti of reaction will occur? a. Redox reaction b. Precipitation reaction c. Acid-base reaction d. All of the above 19 E reduced in each of the following reactions:
- 3. Which of the following describes an example of a material undergoing a chemical change to become another material with different characteristics? A. Iron turns to rust when it is exposed to oxygen. B. When water boils, it turns into vapor, which is a gas. C. Oxygen can become liquid at a very low temperature. D. Gold can be spread out very thin to cover a large area. Explanation:24.) Which of the following is considered an important non fuel use of petroleum based products? a. making some plastics and synthetic fabrics b. the extraction of methane gas c. distilling gasoline