For aluminum, the mass would be 0.90 J/g °C.
The mass of copper is 0.35
The mass for iron is 0.44 °C.
For lead, the mass is 0.12 °C.
I hoped this helped!! : )
Pure water does
not have enough ions to conduct electricity. A mixture of metals such as iron,
zinc and copper in the wet soil can trigger electrolysis that requires excess
energy in the form of over potential to conduct electricity. The excess energy
is needed due to limited self-ionization of water. The wet soil then can
conduct current when positive and negative ions are present. The water ions begin
to flow from anode (positive electrode) to cathode (negative electrode) to be oxidize
and produce electricity.
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Answer:
C. Hold polar molecules together.
Explanation:
This is just something you have to know.
Moles CO = 10.0 g / 28.01 g/mol = 0.357
<span>the ratio between CO and CO2 is 2 : 2 ( or 1 : 1) so we would get 0.357 mole of CO2 ( 100% yield) </span>
<span>mass CO2 = 0.357 mol x 44.0098 g/mol = 15.7 g ( theoretical yield) </span>
<span>% yield = 12.8 x 100 / 15.7 = 81.5
Hope this helps.</span>
Given:
2 Mg + O2 → 2 MgO
So,
<span>(25.0 g of Mg / 24.3051 g/mole) x (1/2) x (22.4 L/mole) = 11.5 L of Oxygen will react with 25 grams of magnesium metal.</span>