Chemistry, 25.02.2021 20:20 lullexxxx

100 POINTS (a)
Which alloy in the table above contains an element which is a non-metal?

(b)
Which two alloys in the table contain only two metals?
and

(c)
Another alloy called nichrome contains only the elements chromium and nickel.
100 g of nichrome contains 2&g of chromium.
How much nickel does it contain?
.9
1 mark
(d) Before 1992, two-pence coins were made of bronze.
Steel rusts but bronze does not rust.
(0)
Why does bronze not rust?
Use information in the table above to help you.
1 mark
Rusting requires water and a gas from the air
Give the name of this gas.
1 mark

100 POINTS

(a)
Which alloy in the table above contains an element which is a non-metal?
(b)
Which

Answers: 2

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Answers

Answer from: rowellr3

An allotrope of carbon that is soft and can be used as a lubricant is __.

a. silicon

b. diamond

c. sand

d. graphite

The process by which a solid changes directly to a gas without first becoming a liquid is called __.

a. condensation

b. ionization

c. sublimation

d. evaporation

In the gaseous state __ form diatomic covalent molecules.

a. noble gases

b. alkali metals

c. alkaline earth metals

d. halogens

When hydrogen reacts with the active metals, it __.

a. shares electrons

b. gains one electron

c. loses one electron

d. loses two electrons

Different forms of the same element that have different properties because of different atom arrangements are called __.

a. allotropes

b. carbons

c. silicons

d. graphites

At room temperature, most metals are __.

a. liquids

b. solids

c. radioactive

d. gases

An allotrope of carbon that is hard and is often used in jewelry is __.

a. silver

b. diamond

c. quartz

d. graphite

Metals can be usedas wire because they are __.

a. ductile

b. malleable

c. shiny

d. alloys

The __ often occur in nature as uncombined elements.

a. alkaline earth metals

b. alkali metals

c. actinide series

d. transition elements

Substances that conduct an electric current only under certain conditions are most likely to be __.

a. metals

b. nonmetals

c. metalloids

d. noble gases

The elements in Groups 3 through 12 of the periodic table are the __.

a. actinides

b. lanthanides

c. transition elements

d. noble gases

A group of elements that has two electrons in its oter energy level is the __.

a. alkaline earth metals

b. halogens

c. alkali metals

d. actinides

Hydrogen is grouped with the alkali metals because it __.

a. is a metal

b. has one electron in its outer energy level

c. is a gas

d. does not readily form compounds

Synthetic element are found in which of the following groups?

a. actinides

b. alkali metals

c. oxides

d. halogens

The bonding that occur when positively charged ions are surrounded by a cloud of eectrons is called __ bonding.

a. ionic

b. covalent

c. radioactive

d. metallic

All synthetic elements __.

a. are used in smoke detectors

b. are needed by the human body

c. are not typically found on Earth

d. have more than 92 protons

The only metal that is a liquid at room temperature is __.

a. silver

b. zinc

c. mercury

d. sodium

A synthetic element that is used in smoke detectors is __.

a. americium

b. sodium

c. technetium

d. aluminum

Bromine is the only halogen and nonmetal that is a __ at room temperature.

a. solid

b. liquid

c. gas

d. semiconductor

The iron triad of transition metals includes __.

a. iron, zinc, and copper

b. cobalt, iron, and nickel

c. copper, silver, and gold

d. zinc, cadmium, and mercury

The ablility of metals to reflect light is referred to as __.

a. luster

b. ductility

c. conductivity

d. malleability

Any element with an atomic number greater then 92 is a __.

a. transuranium element

b. lanthanide

c. transision element

d. halogen

Copper, silver, and gold are __ metals.

a. diatomic

b. radioactive

c. magnetic

d. coinage

Elemens that lie along the stair-step line of the periodic table are __.

a. liquids

b. metals

c. metalloids

d. radioactive

Three transition elements in Group 12 of the periodic table are __.

a. iron, nickel, and cobalt

b. mercury, zinc and cadmium

c. copper, silver, and gold

d. neon, helium, and xenon

Describe an allotrope

an allotrope is a form of an element that has a different molecular structure.

Explanation: all i got hope some of it helps :D

Answer from: Quest

No is the answer to the question

Answer from: Quest

Hope you find the answer

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100 POINTS (a)
Which alloy in the table above contains an element which is a non-metal?
...

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