A1 Choose from the following elements only to answer the questions below
Zinc
Silicon
Carbon
Iron
Phosphorus
Hydrogen
Each element can be used once more than once or not at all
Name an element which
(a) is used to make overhead electricity cables

Define dew point. i am writing this part to be able to ask the question

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.

What is the value of the standard enthalpy of formation of an element in its most stable form?