What happens in a decomposition reaction ? View Solution What is a combination reaction ? View Solution Knowledge Check ………is a combination reaction. ACu+H2SO4→CuSO4+H2 BH2+Cl2→2HCl C2HgOΔ−−→2Hg+O2 DCaCO3Δ−−→CaO+Co2 Submit...
(c)What happens to the speed of the reaction when(i) smaller pieces of zinc are used?goes faster /more hydrogen given off per minute /more gas given off per unit time /less time for same amount of gas...I per unit time / less time for same amount of gas_.. [1](ii) some ...
(Ⅲ) Explain, in terms of particles, what happens to the rate of the forward reaction when the reaction mixture is heated.相关知识点: 试题来源: 解析 When the reaction mixture is heated, the average kinetic energy of the reactant particles increases. This means more particles have higher ...
This checks for contact dermatitis, a reaction that happens when your skin comes in contact with an allergen. Your health care provider puts drops of an allergen on the surface of your skin and covers the spot with a bandage. Or the allergen may be on the bandage itself. You leave the b...
Science Chemistry Chemical reaction What happens in a chemical reaction?Question:What happens in a chemical reaction?A Type Of Change:There are two major types of reactions that can happen to substances: physical reactions and chemical reactions. Both types of reactions cause some change to occur...
What happens when sulfur reacts with iron? Does it make any colors before it turns dark grey?Combination reaction:When two reactant reacts to form a single product then the reaction is said to be addition reaction. The properties of addition product may be differ...
13 Water is added to anhydrous copper(II) sulfate.What happens during the reaction? B A The copper(II) sulfate turns blue and the solution formed gets colder. B The copper(II) sulfate turns blue and the solution formed gets hotter. C The copper(II) sulfate turns white and the solution ...
A. It combines with calcium oxide. B. It decomposes into calcium oxide and carbon dioxide. C. It reacts with carbon dioxide to form calcium oxide. D. It is unchanged. 相关知识点: 试题来源: 解析 B。在这个反应中,碳酸钙(CaCO₃)分解成氧化钙(CaO)和二氧化碳(CO₂)。选项 A 它不是与氧...
What happens in a neutralization reaction?Question:What happens in a neutralization reaction?Acids and Bases:One of the ways of categorizing a substance is by determining how acidic or basic it is. Acidic substances have a pH of less than 7, while basic substances have a pH of more than 7...
What is a dehydration reaction?Chemical Reactions:Chemical reactions include reactants and products and describe how the atoms in chemicals recombine in different conformations to produce different molecules. There are many types of chemical reactions that exist in living things that help build and ...