So, is copper a pure substance or a mixture?Yes, copper is a pure substance as copper has definite properties. It is made up of only one kind of atom. A substance having one or more atoms in the same proportion throughout the substance is a pure substance. It is a d-block metal wi...
Is helium classified as a pure substance, a pure element, a homogeneous mixture, or a heterogeneous mixture? Is a pure silver ring classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture? Explain. Is milk classified as a...
What is the hardest natural substance? A. Diamond B. Gold C. Silver D. Copper 相关知识点: 试题来源: 解析 A。钻石是最硬的天然物质。选项 A“Diamond”是钻石;选项 B“Gold”是金;选项 C“Silver”是银;选项 D“Copper”是铜。反馈 收藏 ...
Is copper an element, a compound, or a mixture? Explain. What happens immediately after copper and silver nitrate are mixed? Describe what you would observe. Explain why aluminum does not react with potassium nitrate (KNO3) although it reacts with copper nit...
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Is copper an element, a compound, or a mixture? Explain. Why do metals conductivity rate reduces with increase in temperature? Give reasons why most of the compounds formed by transition elements are colored. With respect to the Cooper pair model, explain...
It is known that large molar absorbance coefficient of a substance (k) in copper spectrophotometry, it indicates that ( ) A. The concentration of the substance is very high B. The substance has a strong absorption of light at a certain wavelength C. The sensitivity of the substance is very...
Mixit,Cooooooolitdown Alloy-2ormoremetalsinsolution Ex.Brass=Copper+Zinc TheUniversalSolvent=WATER!! - Asolutionwherewateristhesolvent. MolecularCompounds Compounds=ChemicallyBonded -Thismeansthattheyshareelectrons (CovalentBond) -Iftheelectronsarenotshared equallythemoleculeis POLAR (hasa+&-end) Ex....
An element, such as copper, is a substance that has been broken down as far as it can be using chemical means. Each element is made up of just one kind of atom. Copper has an atomic number of 29 on the periodic table. Answer and Explanation: ...