A solid element that is malleable' a good conductor of electricity, and reacts with oxygen is classified as a
1 answer:
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<span>The amount of heat energy needed to increase the temperature of a substance by </span>
<span> is given by:
</span>
<span>
where m is the mass of the substance, Cs is its specific heat capacity and </span><span> is the increase in temperature of the substance.
In this problem, we have a certain mass m of gold, with specific heat capacity </span>
<span>, to which we add Q=2825 J of energy. Its temperature increases by </span>
<span>. Therefore, if we re-arrange the previous equation, we can find the mass of the block of gold:
</span>
<span>
So, the correct answer is B.</span>
</span>
where m is the mass of the substance, Cs is its specific heat capacity and </span>
In this problem, we have a certain mass m of gold, with specific heat capacity </span>
</span>
So, the correct answer is B.</span>