Which of the following substances can react with oxygen to produce a new substance? A. Water B. Salt C. Iron D. Gold 相关知识点: 试题来源: 解析 C。铁可以和氧气发生反应生成新物质铁锈,水通常情况下不能与氧气反应生成新物质,盐和金在常见条件下也不与氧气发生反应。
DNone of these Submit The substance which causes a defineite change in genes is called View Solution When we add water to the following substances, which one will show a chemical change ? View Solution View Solution View Solution View Solution ...
When comparing two solutions, the solution with the greater concentration of solutes is called? A measure of the amount of dissolved salts in a given amount of liquid is called? What is attraction between molecules of the same substance called?
The acid acted in this case as a “'salifying principle" and the substance which it neutralized as a “salifiable base,’ the term base being used in a sense similar to that ofRouelle. 在这种情况下,酸充当“成盐原理”,它中和的物质充当“可成盐的碱”,术语“碱”的含义与鲁埃勒的含义类似。
SUBSTANCE INCLUDING NEGATIVELY CHARGED OXYGEN ATOM, AND METHOD FOR PRODUCING THE SAMEPROBLEM TO BE SOLVED: To provide a substance releasing negatively charged oxygen atoms at a relatively low temperature.TORIMOTO YOSHIAKI鳥本 善章KAWASAKI TAKU
When wool is shorn from a living sheep it is called fleece or clip wool. Chemically wool consists of a complex protein , a substance which is composed of carbon, hydrogen, oxygen, nitrogen and sulphur. It differs from cellulose in containing nitrogen and sulphur, and it is the presence of...
bodily fluid,body fluid,liquid body substance,humour,humor- the liquid parts of the body blood- the fluid (red in vertebrates) that is pumped through the body by the heart and contains plasma, blood cells, and platelets; "blood carries oxygen and nutrients to the tissues and carries away wa...
the subject-to-tax ap the subprime solution the substance changes the substance of the the substantial evide the substantive title the subtropical decid the suit a machiavell the sum charged for r the summer olympics the summer vacation the sun also rises the sun and the wind the sun bright...
After cleaning Beethoven’s hair one piece at a time, scientists put the pieces into a substance(物质)and collected small amounts of DNA. Collecting enough genetic materials was difficult because DNA in hair gets cut up into very small pieces. But finally, after using up almost 3 metres of...
The non-biogenic component constitutes the non-biodegradable inorganic substance, such as metal and plastics. Most of the MSW in Nigeria contains biodegradable waste materials because of limited industrial activities in the country. 2.4.2. Food industry waste Solid and liquid food wastes are generated...