c. fragile d. transparent Elements: Element is a substance that can exist as a single identifiable unit and can be broken down into simpler substances. The periodic table lists 118 elements. Answer and Explanation:
In the hot water cup, the temperature is higher. The heat energy associated with the water molecules is also higher because the heat energy is...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a que...
Batteries operate on the principle that a voltage develops across two electrodes of dissimilar metals when they are immersed in an electrolyte. A 12 volt battery is made up of six individual cells connected in series within an outer plastic casing, the voltage generated in each cell being 2.1 v...
科目: 来源: 题型: 【题目】Although metals ___widely in qualities such as strength and hardness,they all have certain qualities in___. A.vary;general B.differ;common C.react;particular D.refer;detail 查看答案和解析>> 科目: 来源: 题型...
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Explain why chemical compounds tend to dissolve more quickly in hot solvent than in cold solvent. How does metallic bonding structure explain why metals are malleable? Describe the main difference between an element & a compound. Be sure to include the following ideas: pure substance, com...
To anionically stabilize the polymer, with respect to WDC, the water dispersing group may be reacted with a basic salt forming compound. The polymer of formula (I) possesses a fluorinated segment(s) and/or a silicone containing segment(s), and/or a silicone/fluorinated segment(s). ...
Further, because the pores of porous self-sintered silicon carbide are not interconnected, porous self-sintered silicon carbide cannot be impregnated with resin, carbon, TEFLON, metals or other compounds or materials. Siliconized graphite, i.e., graphite siliconized by chemical vapor reaction (CVR),...
A nuclear fusion power plant having a spherical blast-chamber filled with a liquid coolant that breeds tritium, absorbs neutrons, and functions as both an acoustical and laser medium. Fuel bubbles up through the sphere's base and is positioned using computer guided piezoelectric transducers that are...
described above, may be improved both in respect of increased viscosity or firmness and in resistance to solvents, by adding to the mass, preferably at such a temperature that it is fairly fluid, the free hydroxide or a weak salt such as the carbonate, of one of the alkaline earth metals...