When a reaction occurs between ammonia and water, what happens? Ammonia and Water: Ammonia and water are both chemical compounds capable of reacting with one another. Ammonia is a gas with the chemical formula of NH3, being comprised of nitrogen and hydrogen. Water is a tasteless and colo...
and they're still threatening to visit this summer, so we kind of want to break the news about our living situation before that happens.- Why don't you just shoot them a text?opt out:决定退出,不再参与柯林斯英语释义:If you opt out of something, you choose to be ...
The chemical reaction happens___adding two substances together. A. with B. by C. for D. at 相关知识点: 试题来源: 解析 B。by adding two substances together表示“通过把两种物质加在一起”,by表示“通过……方式”,符合语境。with表示“用”;for表示“为了”;at表示“在……”,均不符合题意。
A. a positive reaction that happens after sth negative B. a period when there is a reduction in business and many people lose their jobs C. a legal arrangement by which you borrow money from a bank in order to buy a house, and pay back the money over a period of years D. the sale...
日出之前(before sunrise)台词翻译男主角:Ethan Hawke女主角:Julie Delpy导演:Richard Linklater一、 在火车上相识(一对中年夫妻在用德语吵架,声音越来越响,坐在过道对面的女主角看不进书,皱眉,拿包离开,来到男主角过道的对面,瞥了男主角一眼后,坐下看书。男主角很想搭讪,但没有勇气,在那里犹豫。这时中年夫妻从...
What happens when iron reacts with oxygen and water? A. Combination reaction B. Decomposition reaction C. Displacement reaction D. Double displacement reaction 相关知识点: 试题来源: 解析 A。本题考查化学反应类型。铁与氧气和水反应生成铁锈,是多种物质生成一种物质的反应,属于化合反应。
What happens when you hear a strange noise at night, or find a big spider in the corner of your bedroom? It often makes us . This reaction (反应)is caused by fear. Although many of us don't like being scared, scientists now suggest that it can be good for our health. Fear makes ...
aWhen this happens, the normal first reaction is the fear of difficulty as a result of this poor woodsmanship. He may also worry about the trouble that he will cause his friends when he doesn’t show up. If he is short of experience, he may keep on the move in an effort to find ...
/When many atoms are brought together,/ a chain reaction happens. /This causes a continuous explosion. /By controlling the nuclear reaction, /scientists can put the power from the heat to work. /This power or energy can be used to make electricity. /It can also be used to make fresh ...
When iron rusts, it is a chemical change. What happens during this process? A. The color remains the same. B. No chemical reaction occurs. C. A new substance is formed. D. The mass of iron decreases. 相关知识点: 试题来源: 解析 C。铁生锈是化学变化,在这个过程中会形成新物质。A ...