Home > ACNE >

What are some intensive properties of zinc

Health related question in topics Chemistry .We found some answers as below for this question "What are some intensive properties of zinc",you can compare them.

Zinc is a reactive metal that will combine with oxygen and other non-metals, and will react with dilute acids to release hydrogen. [ Source: http://www.chacha.com/question/what-are-some-intensive-properties-of-zinc ]
More Answers to "What are some intensive properties of zinc"
What are some intensive properties of zinc
http://www.chacha.com/question/what-are-some-intensive-properties-of-zinc
Zinc is a reactive metal that will combine with oxygen and other non-metals, and will react with dilute acids to release hydrogen.

Related Questions Answered on Y!Answers

we are dealing with extensive/intensive properties in chemistry. we did a lab and i have some questions.?
Q: we cleaned a penny, and put it in a sodium hydroxide-zinc mixture over a bunsen burner. it turned silver. then we took it out, and just held it over the flame with tongs, and it turned gold.Here are some questions i have:1. did the copper change to gold? explain. (i put no, and my reasoning was "you told us it wasn't"...i didn't actually know)2. what intensive property could be used to prove your explanation? (i dont know this either)3. list 1 extensive and 1 intensive property of the token4. the last change formed an alloy, was the last change physical or chemical?5. did the last change form a compound, mixture, or new element?6. what was the final product? ( i think its brass but idk)i need help figuring these out, but i would like a good explanation so im actually learning somethingHELPP!!!!!!
A: 1. It looks gold, but you did not make a new element, as no nuclear reactions took place.2. Density would be a good intensive property to justify. The denisty of gold would be different from that of Cu, Zn or brass3. Intensive: electrical resistivity, Extensive: mass 4. Chemical change. You're not just mixing the two metals together. An sample with infinitly small domains of Cu or Zn would not have the same color. (maybe the same density, in bulk)5. compound. A mixture would have discreet domains of Cu and Zn.6. Brasshttp://en.wikipedia.org/wiki/Brass
Please HELP with LAB concerning INTENSIVE and EXTENSIVE properties!!!?
Q: we cleaned a penny, and put it in a sodium hydroxide-zinc mixture over a bunsen burner. it turned silver. then we took it out, and just held it over the flame with tongs, and it turned gold.Here are some questions i have:1. did the copper change to gold? explain. (i put no, and my reasoning was "you told us it wasn't"...i didn't actually know)2. what intensive property could be used to prove your explanation? (i dont know this either)3. list 1 extensive and 1 intensive property of the token4. the last change formed an alloy, was the last change physical or chemical?5. did the last change form a compound, mixture, or new element?6. what was the final product? ( i think its brass but idk)i need help figuring these out, but i would like a good explanation so im actually learning something
A: Ok, I'll give it a go for a few of them.1. no, it didn't change to gold. Heating something will not change what element it is. If so, we could be making gold all the time.2. an intensive property is one that does NOT depend on the size of your sample - some examples are melting point and density - either of those could be used to show the compound is not gold.3. I just listed some intensive ones, extensive properties DO depend on the size of the sample, so mass or volume are examples.4. I am not positive, but I think it's a physical change. An alloy is a homogeneous mixture of two or more elements. They don't make bonds with each other, just sort of form a structure with each other. 5. You made a mixture.6. Yes, it's most likely that you made brass which is an alloy of copper and zinc.
i need help with a chemistry lab.?
Q: we cleaned a penny, and put it in a sodium hydroxide-zinc mixture over a bunsen burner. it turned silver. then we took it out, and just held it over the flame with tongs, and it turned gold.Here are some questions i have:1. did the copper change to gold? explain. (i put no, and my reasoning was "you told us it wasn't"...i didn't actually know)2. what intensive property could be used to prove your explanation? (i dont know this either)3. list 1 extensive and 1 intensive property of the token4. the last change formed an alloy, was the last change physical or chemical?5. did the last change form a compound, mixture, or new element?6. what was the final product? ( i think its brass but idk)i need help figuring these out, but i would like a good explanation so im actually learning somethingPlease, I need help, I don't understand this!!
A: 1. No, the copper didn't change to gold. Transmutation is extremely difficult to achieve, and requires sophisticated manipulation of the nucleus of an atom. It occurs only among a few well-known radioactive elements or in the core of a star. You definitely can't transmute copper over a Bunsen burner. Besides, to skip ahead to answer 6, the surface of the penny turned to brass, not gold.2. Density. If you measured the mass and volume of the penny and used it to calculate the penny's density, it would not be equal to the density of gold.3. Extensive property: mass. Intensive property: density.4. Physical. Formation of alloys is a physical change.5. It formed a mixture. And to shed more light on answer 4, an alloy is a type of mixture, and formation of mixtures is always a physical change, even when the mixture is homogenous.6. You are correct; it is brass.
TOP


Prev Question: What happens when zinc is added to water
Next Question:

People also view
  • What are some intensive properties of zinc
  • What happens when zinc is added to water
  • How many valence electrons are in Zinc
  • How do keep your self from eating
  • What is the folic acid that birth control pills often deplete
  • How much does a pre-1983 penny weigh in ounces and grams
  • Why do shipbuilders put pieces of zinc on the hulls of ships
  • What is zink
  • What is the charge of an atom of zinc
  • What color is zinc