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小题2: satisfaction。在“a sense of”后面需要接名词,所以为satisfaction,表示“满意感”。 小题3:①encouragement;②encouraged;③courage。首先,第一空an后要接名词encouragement;其次,第二空形容词encouraged和系动词feel搭配,构成系表结构;最后,第三空courage为名词,表示“勇气”的意思。 复制 纠错...
) Butane, each molecule of which has four carbon atoms. Quartation (n.) The act, process, or result (in the process of parting) of alloying a button of nearly pure gold with enough silver to reduce the fineness so as to allow acids to attack and remove all metals except the gold; ...
The butane is left to evaporate to leave a highly concentrated substance. However, not every company successfully removes the vast majority of butane. The result is an end product containing the substance, which is known for being toxic to humans....
How many molecules of butane are contained in 25.0 mL of butane? The density of butane is 0.6011 g / mL, and the molar mass is 58.12 g / mol. If 4.05 10 23 molecules of a substance have a mass of 86.2 g, what is the molar...
Traditional, non-electronic dab rigs may feel old school to some, but they’re still a popular way to vaporize live resin. Proceed with caution if you’ve never used a butane torch and nail to vaporize concentrates. This method comes with additional safety hazards, and you can’t sub in ...
What aldotetrose is reduce with sodium borohydride to give meso-1,2,3,4-butanetetrol? Why would sodium react more readily with chlorine? Is sodium classified as a pure substance (element or compound) or a mixture? Explain. Which characterizes the sodium-potassium pump? Explain. What do lithi...
Torch cooking – smoking cocaine base by using a propane or butane torch as a source of flame Torch up – to smoke marijuana Torpedo – crack and marijuana Totally spent – MDMA hangover TR-6s – amphetamine Track – to inject a drug Tracks – row of needle marks on a person Tragic magi...
a. CH4 b. CH3CH3 c. CH3CH2CH3CH2OH d. CH3CH2CH2CH3 Which of the following elements has the highest melting point? a. Ca b. K c. Fe d. Na Which of the following has the highest melting point? (a) 2,2,3,3-Tetramethylbutane (b) Octane. Whic...