Welding is a process thatused to attach pieces of metal to one another. In a certain welding process, small pieces of Al (s) and CuO (s) are placed in a crucible and ignited, causing the following highly exothermicreaction to occur.2 Al + 3 CuO → 3 Cu + Al,0,The copper and aluminum oxide melt. The molten aluminum oxide floats to the top of the crucible. When the steel disk below the crucible melts, the molten copper flows into the weld cavity and welds the pieces of metaltogether as it cools and solidifies. The setup is represented in the following diagram.Mixture of Al(s)and CuO(s)CrucibleSteel DiskWeld CavityPieces ofMetal to BeConnected Which of the following identifies the metal that is less easily oxidized, Al or Cu, and provides appropriate evidence?Aluminum, because aluminum metal loses electrons and copper ions gain electrons.Aluminum, because aluminum ions gain electrons and copper metal loses electrons.Copper, because copper metal loses electrons and aluminum ions gain electrons.Copper, because copper ions gain electrons and aluminum metal loses electrons.

Introduction According to the given reaction,2 Al+3 CuO→3 Cu+Al2O3 a mixture of Aluminium and CuO…

Which of the following identifies the metal that is less easily oxidized, Al or Cu, and provides appropriate evidence? Aluminum, because aluminum metal loses electrons and copper ions gain electrons. Aluminum, because aluminum ions gain electrons and copper metal loses electrons. Copper, because copper metal loses electrons and aluminum ions gain electrons. Copper, because copper ions gain electrons and aluminum metal loses electrons.

Which of the following identifies the metal that is less easily oxidized, Al or Cu, and provides appropriate evidence? Aluminum, because aluminum metal loses electrons and copper ions gain electrons. Aluminum, because aluminum ions gain electrons and copper metal loses electrons. Copper, because copper metal loses electrons and aluminum ions gain electrons. Copper, because copper ions gain electrons and aluminum metal loses electrons.

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter5: Ground Rules Of Metabolism

Section: Chapter Questions

Problem 1SA: Which of the following statements is not correct? a. Energy cannot be created or destroyed. b....

See similar textbooks

Similar questions

Enzymes have all the following characteristics except: a. they act as biological catalysts b. they are proteins c. they carry out random chemical reactions d. they convert substrates into products e. they can cause genetic disease
Which of the following statements is not correct? a. Energy cannot be created or destroyed. b. Energy cannot change from one form to another. c. Energy tends to disperse spontaneously. d. Energy can be transferred.
which temperature will yield a colorless solution given a mixture of starch, I2, and amylase? a. 40 degrees celcius b. 80 degrees celcius c. 10 degrees celcius d. 30 degrees celcius
Why oil gets hot faster than the water?
So you have a solid substance. So you start to add heat to it. What happens as you start to do this? Increasing the rate of heating of a substance at its melting point only causes more rapid melting. When the melting point is reached, ther thermal energy is sufficient to overcome intermolecular forces holding the components at their statioinary points. Thermal energy causes the components of the solid to vibrate faster. Heating of the now formed liquid results in increaseing the liquid temperture.
An aqueous solution containing 30mol% NaCl is used to produce NaOH by electrolysis. At the anode, the chloride ion is oxidized to chlorine gas; at the cathode, water is reduced to hydroxide and hydrogen gas. The chlorine gas and hydrogen gas exit the electrolysis system while the remaining solution is concentrated in an evaporator to produce a product containing 50mol% NaOH, 7mol% NaCl and 43mol% H2O. What is the percent conversion of salt to sodium chloride? How much chlorine gas (in kg) is produced per kg of product and How much water (in kg) must be evaporated in the evaporator per kg of product?
A food factory wants to test the film strength of different types of starch, but the film strength is affected by the film thickness, and it is difficult to control the film thickness during the production process. Only the thickness data of various film samples can be recorded, but when the manufacturer wants to test the film strength , the influence of film thickness can be excluded. How should the manufacturer design the experiment? In order to compare the strength of the film and exclude the influence of the thickness of the film, how should the experiment be randomization?
The French chemist Antoine Lavoisier was elected to the French Academy of Sciences for his discovery that roasted metals weighed more than unroasted metals, due to the creation of: metal carbonates from exposure to carbon dioxide gas metal hydrides from exposure to hydrogen gas metal oxides from exposure to oxygen gas metal nitrates from exposure to nitrogen gas metal sulfides from exposure to hydrogen sulfide gas
A 10.00 mg sample of technetium-93 (92.91024898 u) is used to heat 125.4 g of water from 23.4 degree C to 87.4 degree C. How many minutes will be required to heat the water if all of the energy generated from the decay is used to heat the water?
What is the most common form of kinetic energy that is released from chemical energy in chemical reactions? A) Sound B) Electromagnetic radiation C) Electricity D) Light E) Thermal
Heliox is a helium‑oxygen mixture that may be used in scuba tanks for divers working at great depths. It is also used medically as a breathing treatment. A 5.25 L tank holds helium gas at a pressure of 1734 psi. A second 5.25 L tank holds oxygen at a pressure of 461.0 psi. The two gases are mixed in a 5.25 L tank. If the temperature remains the same throughout the process, what is the pressure of the gas mixture in the tank? Assume ideal gas behavior.
In the following chemical reaction, which compounds are the products? Carbon dioxide + Water → Sugar + Oxygen A. Carbon dioxide and sugar B. Carbon dioxide and water C. Sugar and oxygen D. Water and oxygen