What two types of chemical interactions contribute to the stability of the DNA double helix? The DNA Double Helix: DNA, deoxyribonucleic acid, is a long polymer composed of two strands of nucleotides. Each nucleotide is composed of three parts: the 5-carbon sugar deoxyrib...
An independent study has been made of the equilibria in reactions between high-molecular poly-N,N-dimethylaminoethylmethacrylate and oligo- and polyphosphates; these equilibria describe the reversible association of chemically complementary macromolecules (equilibrium I) and the reversible chemical reaction ...
百度试题 结果1 题目The ___ is a type of chemical reaction where two or more substances combine to form a new compound.相关知识点: 试题来源: 解析 答案:Synthesis Reaction 反馈 收藏
结果1 题目 6 In which type of chemical reaction do two or more reactants combine to form one product,only? (1)(1)synthesis(2)decomposition(3)single replacement(4)double replacement 相关知识点: 试题来源: 解析 (1) 反馈 收藏
A. decomposition. B. synthesis. C. combustion. D. neutralization. 相关知识点: 试题来源: 解析 B。解析:两种物质结合形成新物质的过程叫做合成。选项 A 分解是一种物质分解成多种物质。选项 C 燃烧是物质与氧气发生剧烈反应。选项 D 中和是酸和碱反应生成盐和水。反馈 收藏 ...
Chemical reactions occur when two or more substances, called reactants, interact with one another to create one or more new substances as products. Products produced depend on the type of reactants, as well as the conditions surrounding the reaction....
Our phylogenetic analyses suggested that XBB emerged through the recombination of two cocirculating BA.2 lineages, BJ.1 and BM.1.1.1 (a progeny of BA.2.75), during the summer of 2022. XBB.1 is the variant most profoundly resistant to BA.2/5 breakthrough infection sera to date and is ...
We investigated the chemical nature and biochemical origins of CS lignin and compensatory cell-corner lignin. For this, we used confocal Raman microscopy on root cross-sections, to spatially resolve the chemistry of these different types of lignin. We triggered endodermal cell-corner lignin depositio...
Although the skeletons and pore structures of COFs are customizable through judicious selection of chemical building blocks, COF materials have been mainly limited to uniform pore structures with homogeneous pore environments. Two-dimensional COFs with complex multipore structures are largely unexplored, ...
2). Furthermore, four signals corresponding to n-butoxyl chains are observed in the region of 10–70 ppm. These results essentially verify the formation of imine-linked COF in terms of chemical composition and connection. Thermogravimetric analysis (TGA) shows that COF-Bu has excellent thermal ...