Astudent wants to compare how easily a metal and a plastic spoon of the same temperature can transfer thermal energy. which of the following activities should the student perform? measure the effort required to bend each spoon. place an ice cube on each spoon and record the rate of melting of the cubes. place the spoons at room temperature and record the change in temperature of each. measure the change in weight of the spoons after placing them in the freezer for a few minutes.

Place an ice cube on each spoon and record the rate of melting of cubes.

We have heard that plastic is an insulator of heat and metal is a conductor of heat. That is why the cooking utensils are made of metal and spoons of plastic.

When ice cube would be placed on the two spoons, the one on metal would melt faster. As metal is a good conductor of heat, the amount of heat transfer would be greater in case of metal spoon and hence, ice would melt faster.

the term hydride is commonly named after binary compounds that hydrogen forms with other elements of the periodic table. hydride compounds in general form with almost any element, except a few noble gases. the trends and properties vary according to the type of intermolecular force that bonds the elements together, the temperature, its molecular masses, and other components. hydrides are classified into three major groups, depending on what elements the hydrogen bonds to. the three major groups are covalent, ionic, and metallic hydrides. formally, hydride is known as the negative ion of a hydrogen, h-, also called a hydride ion. because of this negative charge, hydrides have reducing, or basic properties. its special characteristics will be further discussed.

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