解析 B。解析:蜡烛燃烧时,蜡与氧气发生化学反应,生成二氧化碳和水,这是蜡烛燃烧这个化学变化的本质。选项A蜡不会单纯地变成水。选项C蜡不会变成氢气。选项D蜡更不会变成氧气。从英语角度看,考查了蜡、氧气、二氧化碳、水、氢气等英文单词以及对蜡烛燃烧化学原理用英语描述的理解。
significantchangestotheplanet?swatercycle.Areasthatcurrentlyreceivealotofrainwillget significantlymore,whiledryregionswillbecomeincreasinglylikelytodroughts. TheIPCC?sfindingscomeasnosurprisetothemillionsofpeopleworldwidecurrentlyfeeling theimpactsofclimate-relateddisasters.Americaand many Europeancountriesarebattling wild...
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The size of the doji’s tail or wick coupled with the size of the confirmation candle can sometimes mean the entry point for a trade is a long way from thestop-losslocation. This means traders will need to find another location for the stop-loss, or they may need to forgo the trade ...
A red-filled candle is common and occurs when the close is below the open and prior close. A hollow red candle is when the close is below the prior close, but above the open. Charting platforms may differ in how they draw candlesticks. Some may not take into account the prior close. ...
When is Advent? The liturgical calendar has the advent season beginning on the fourth Sunday before Christmas, which usually falls between November 27 and December 3rd. There are always four Sundays of Advent which typically involve lighting a candle, reading Scripture, and singing hymns. Because ...
A lack of sleep often leads to twitchy eyes, amongst a number of other symptoms. If you’ve been burning the candle at both ends, just try to catch up on some sleep and you should see your eye twitching disappear. Caffeine Unfortunately, caffeine often triggers the eye twitching. A way...
Once a year, an astronomical alignment ushers in this seasonal change. Like its summer counterpart, the winter solstice is celebrated across the world—and shrouded in myth.
the curious spirit, the playful spirit. Within that pleasure-seeking happiness, you will find peace, harmony, and beauty within yourself and life. Whether this looks like art classes, candlelit dinners, galleries, books, or dancing, allow your expression to be the doorway to equilibrium found ...
What is an example of e-commerce? An example of e-commerce is a small, independent candle brand selling directly to customers via its own website. It may also sell on an online marketplace like Etsy, and have Instagram Shopping enabled so that its social media followers can make purchases...