Chemistry

The most abundant element in the earth's crust is A) silicon. B) iron. C) oxygen. D) ...

Started by Mr3Hunna

Consider the following unbalanced equation between copper(I) ions and iron to produce copper metal ...

Started by jjjetplane

The inorganic portion of the lithosphere is made up of silicon and nonmetals like oxygen, sulfur and ...

Started by lidoalex

Every reduction reaction MUST be accompanied by A) an oxidation reaction. B) formation of ionic ...

Started by Jipu 123

All redox reactions occur with the transfer of A) protons. B) electrons. C) chlorine. D) ...

Started by asmith134

Limestone is consists of A) Al2O3. B) CaCO3. C) Fe2O3. D) PbS. ...

Started by abc

What is reduced in the following reaction? 2 Bi3+ + 3 Mg 2 Bi + 3 Mg2+ A) Bi3+ B) Mg C) Bi D) ...

Started by Awilson837

Consider the following unbalanced half-reaction: MnO4- MnO2. The oxidation number of Mn changes ...

Started by kamilo84

Silicates are compounds composed of A) silicon only. B) silicon and metals. C) silicon, oxygen ...

Started by Bernana

In the reaction Cu+ + Fe Cu + Fe2+ (Note: The reaction is not balanced.) A) Fe is the reducing ...

Started by stevenposner

Pure quartz is composed of A) silicon and oxygen. B) silicon, oxygen and metals. C) silicon, ...

Started by casperchen82

Concrete is a mixture of cement along with A) water. B) gravel. C) sand and gravel. D) sand, ...

Started by Evvie72

Which material is characterized by a well-ordered, three-dimensional structure of SiO4 tetrahedra? ...

Started by APUS57

Which material is characterized by a two-dimensional sheetlike arrangement of SiO4 tetrahedra? A) ...

Started by jeatrice

Which material is characterized by a double chain arrangement of SiO4 tetrahedra? A) asbestos B) ...

Started by plus1

In the reaction Fe2O3 + 3 H2 2 Fe + 3 H2O, the reducing agent is A) Fe2O3. B) H2. C) Fe. D) ...

Started by stevenposner

Cigarette smoke and asbestos fibers act in such a way that each enhances the action of the other. ...

Started by Mollykgkg

Which of the following is NOT a silicate? A) mica B) marble C) asbestos D) ...

Started by roselinechinyere27m

Silver is plated on copper by immersing a piece of copper into a solution containing silver ions. In ...

Started by beccaep

Which one of the following materials is longest lasting? A) ceramics B) concrete C) glass D) ...

Started by Shelles

A device that generates an electrical current by taking advantage of a difference in the spontaneous ...

Started by 123654777

The properties of glass are modified by which approach? A) firing at higher temperatures B) ...

Started by kwoodring

One of the major problems associated with the production of glass is A) the amount of energy ...

Started by cnetterville

The small button cells used in hearing aids and hand calculators are being replaced by ________ ...

Started by NguyenJ

Optical fibers are made from hair-thin threads of A) marble. B) glass. C) asbestos. D) ...

Started by bclement10