Question: What country had a strong copper production in 1000 AD
Answer: Peru

Question: When did commercial production of copper begin?
Answer: early 20th century

Question: How many isotopes are there of copper?
Answer: 29

Question: What are the two stable isotopes of cooper?
Answer: 63Cu and 65Cu

Question: Which isotope makes up about 69% of natural copper?
Answer: 63Cu

Question: What is the half life of the copper isotope 68mCu?
Answer: 3.8 minutes

Question: What is the half life of the copper isotope 67Cu?
Answer: 61.83 hours

Question: What is the alloy of copper and nickel called?
Answer: cupronickel

Question: what is the alloy of copper and nickel used for?
Answer: low-denomination coins

Question: What is the metal composition of a US nickel?
Answer: 75% copper and 25% nickel

Question: What extraordinary property does the alloy made up of 90% copper and 10% nickel possess?
Answer: resistance to corrosion

Question: What color is created when the alloys of copper and aluminium are combined?
Answer: golden

Question: What is the name of the componds that has more than one alcohol functional group?
Answer: Polyols

Question: What are copper salts used to test?
Answer: reducing sugars

Question: How is the presence of sugar shown by using Benedict's reagent and Fehling's solution?
Answer: color change

Question: What color does the copper salts turn to using Benedict's reagent and Fehling's solution if sugar is present?
Answer: reddish

Question: What does Schweizer's reagent dissolve?
Answer: cellulose

Question: What started about 4000 years after copper smelting was discovered?
Answer: Alloying copper with tin to make bronze

Question: What are the first datings of Bronze artifacts from the Vinca culture?
Answer: 4500 BC

Question: When did the Bronze Age began in Southeastern Europe?
Answer: 3700–3300 BC

Question: What was the transition between the Neolithic period and the bronze age called?
Answer: Chalcolithic

Question: What is an alloy of copper and zinc?
Answer: Brass

Question: What is the level of copper in the human body?
Answer: 1.4 to 2.1 mg per kg of body mass

Question: How is copper absorbed in humans?
Answer: in the gut

Question: What is copper bound with when it is sent to the liver?
Answer: albumin

Question: What protein carries the majority of copper in blood?
Answer: Ceruloplasmin

Question: How can the body get rid of excess copper?
Answer: via bile

Question: What is the average concentration of copper in ores?
Answer: 0.6%

Question: What are most commercial ores?
Answer: sulfides

Question: What happens to the silicate slag  during the flash smelting process?
Answer: floats on top

Question: What does heating copper ore materials with silica remove?
Answer: iron

Question: What do the sulfides convert to after the copper matte is roasted?
Answer: oxides

Question: How many metals have a natural color that isn't gray?
Answer: four

Question: What color is pure copper?
Answer: orange-red

Question: What does copper aquire when exposed to air?
Answer: reddish tarnish

Question: The energy difference between filled 3d and half-empty 4s atomic shells corresponds to what color of light?
Answer: orange light

Question: What color is the metal caesium?
Answer: yellow

Question: What has copper been used for since ancient times?
Answer: architectural material

Question: In recent times what is one interior use copper been expanded to include?
Answer: antimicrobial indoor products

Question: What is an important benefit to using copper as an architectural material?
Answer: low thermal movement

Question: How long has copper been used in building construction?
Answer: hundreds or thousands of years

Question: What is the benefit to using copper for things such as counter tops and hand rails?
Answer: antimicrobial

Question: Self-image, self-esteem, and individuality relate to what?
Answer: A psychological identity

Question: What aspect or type of identity does Weinreich single out?
Answer: ethnic identity

Question: What psychological concept does Weinreich state as between the past and future?
Answer: identity

Question: A person's identity is defined as the totality of what?
Answer: one's self-construal

Question: The central task for psychologists, sociologists, and anthropologists is to describe what topics?
Answer: individual and group identity

Question: Who developed the ISA?
Answer: Weinreich

Question: ISA stands for what?
Answer: Identity Structure Analysis

Question: Identity diffusion, foreclosure, and crisis are categories of what?
Answer: Weinreich's identity variant

Question: Those with high levels of identity diffusion are classified as what?
Answer: diffused

Question: Those with low levels of identity diffusion are classified as what?
Answer: foreclosed or defensive

Question: An adolescent going through a family break up turning into an adult in a stable marriage is given as an example of change in what?
Answer: the identity variant

Question: What level of identity diffusion is interpreted as the norm?
Answer: an optimal level

Question: What group has shifted the focus of research in identity?
Answer: Anthropologists

Question: What does a researcher have to identify to carry out empirical research?
Answer: an appropriate analytical tool

Question: What researcher advocated for focus on the boundaries of ethnic groups rather than the cultural aspects of ethnic groups?
Answer: Barth

Question: If identity is a virtual site, what do boundaries supply to the virtual site?
Answer: the framework

Question: Boundaries are frequently used by researchers to help define what?
Answer: identity

Question: What are gender identity, ethnic identity, and occupational identity aspects of?
Answer: one's total identity

Question: How one construes oneself now and in the future differs considerably because of what 2 things?
Answer: age and accumulated experiences

Question: The young child, the adolescent, the young adult and the older adult are phases of what?
Answer: the life cycle

Question: The salient experiential markers one uses to define one's past self differ based on the age that one was at what?
Answer: the height of one's powers

Question: What is distinct from the self?
Answer: identity

Question: What can the literature of self-psychology offer insight into?
Answer: how identity is maintained

Question: What have theorists shown interest in relating to the self-concept?
Answer: self-esteem

Question: The I and the Me are two areas of interest in what?
Answer: self-psychology

Question: Self-psychology is compelled to investigate how personal self relates to what?
Answer: the social environment

Question: What two factors are focused on when explaining an individual's actions within a group?
Answer: mental events and states

Question: What are individual cognition and collective behavior are levels of?
Answer: identity

Question: What term have Anthropologists employed to refer to the Eriksonian idea of selfhood?
Answer: identity

Question: Modern concerns with ethnicity and social movements in the 1970's led what group to be more interested in identity?
Answer: anthropologists

Question: Until recently, what approach was used to refer to qualities of sameness in relation to a person's connection to others?
Answer: the Eriksonian approach

Question: What are the two types of group boundaries?
Answer: inclusive or exclusive

Question: A marker that imposes restriction on the behavior of others is what kind of boundary?
Answer: exclusive

Question: A marker that people are ready and willing to associate with is what kind of boundary?
Answer: inclusive

Question: What boundary is given as an example that can be inclusive or exclusive?
Answer: language

Question: What identity status paradigm emerged due to the work of James Marcia?
Answer: Neo-Eriksonian

Question: The Neo-Eriksonian identity status paradigm focuses on what twin concepts?
Answer: exploration and commitment