When copper oxide reacts with hydrogen, it forms copper and water. What is the balanced equation? A. CuO + H₂ = Cu + H₂O B. 2CuO + H₂ = 2Cu + H₂O C. CuO + 2H₂ = Cu + 2H₂O D. 2CuO + 2H₂ = 2Cu + 2H₂O ...
When copper (Cu) reacts with nitric acid (HNO₃), the reaction is often carried out under a certain temperature. Which English term is used to describe "reaction condition"? A. Product B. Reactant C. Catalyst D. The situation in which a reaction occurs ...
In a chemical reaction, when copper reacts with nitric acid, a blue - colored solution is formed. What is the main reason for this color change? A. Formation of copper nitrate B. Release of oxygen gas C. Production of water D. Decomposition of nitric acid 相关知识点: ...
百度试题 结果1 题目 5. Which metal reacts slowly when it is heated in oxygen? A. Iron. B. Copper.A C. Zinc. D. Calcium. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
题目New York's iconic, blue-green statue of liberty wasn't always green. When the statue was gifted to the US from France in 1885, she was actually a shiny copper color. A new video reveals the chemical reactions involving oxygen and even air pollution that led to her...
Sodiumis the metal that reacts with oxygen and water vigorously. Which metal is stored in kerosene? Sodiumand Potassium are highly reactive metals and react vigorously with the oxygen, carbon dioxide and moisture present in the air such that it may even cause a fire. To prevent this explosive...
In the reaction below, how many moles of CH4 are required to react with 0.5 moles of oxygen gas? CH4 + 2O2 arrow CO2 + 2H2O How many grams of P4O10 are needed to react with 62.0 grams of H2O? P4O10(s) + 6H2O(l) arrow 4H3PO4(aq) How many moles o...
while sulfuric acid with cupric oxide will form the blue compound copper (II) sulfate. Sulfuric acid is such a strong acid it can actually be used to stick a hydrogen ion onto nitric acid, forming the nitronium ion. This reaction is used in the manufacture of one of the world's most fa...
The hydroxide ion is oxidized to oxygen and water. In the electrolysis of an aqueous solution of NaSO_4 what reactions occur at the anode? Draw an electrochemical cell made from a magnesium electrode in a 1.0 M M g S O 4 solution and a nickel elec...
If catalytic metals, especially iron and copper, are present in the environment, AA reduces them (Fe3+→ Fe2+, Cu2+→ Cu+). Their new forms can react with oxygen, forming superoxide or hydroxyl radicals [84,114]. The effect of AA cytotoxicity on inhibiting the growth rate of many ...